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cargo/tests/testsuite/build_script.rs
Eric Huss c35cb56d32 Update tests to deal with linker warnings 
Nightly recently introduced the `linker-messages` lint which prints any
messages from linkers. These tests were triggering that lint because
they were passing missing directories to the linker. This fixes it by
creating empty directories to pass to the linker.

Note that this lint will be downgraded soon via
https://github.com/rust-lang/rust/pull/136098, but it seemed worthwhile
to fix the underlying problem.

This also fixes a problem where build_script_needed_for_host_and_target
was not testing for the correct command-line flags. These got lost
in https://github.com/rust-lang/cargo/pull/14132.
2025-01-26 13:25:17 -08:00

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//! Tests for build.rs scripts.
use std::env;
use std::fs;
use std::io;
use std::thread;
use cargo_test_support::compare::assert_e2e;
use cargo_test_support::paths::cargo_home;
use cargo_test_support::prelude::*;
use cargo_test_support::registry::Package;
use cargo_test_support::str;
use cargo_test_support::tools;
use cargo_test_support::{
basic_manifest, cargo_exe, cross_compile, is_coarse_mtime, project, project_in,
};
use cargo_test_support::{git, rustc_host, sleep_ms, slow_cpu_multiplier, symlink_supported};
use cargo_util::paths::{self, remove_dir_all};
#[cargo_test]
fn custom_build_script_failed() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("src/main.rs", "fn main() {}")
.file("build.rs", "fn main() { std::process::exit(101); }")
.build();
p.cargo("build -v")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[ERROR] failed to run custom build command for `foo v0.5.0 ([ROOT]/foo)`
Caused by:
process didn't exit successfully: `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build` ([EXIT_STATUS]: 101)
"#]])
.run();
}
#[cargo_test]
fn custom_build_script_failed_backtraces_message() {
// In this situation (no dependency sharing), debuginfo is turned off in
// `dev.build-override`. However, if an error occurs running e.g. a build
// script, and backtraces are opted into: a message explaining how to
// improve backtraces is also displayed.
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("src/main.rs", "fn main() {}")
.file("build.rs", "fn main() { std::process::exit(101); }")
.build();
p.cargo("build -v")
.env("RUST_BACKTRACE", "1")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[ERROR] failed to run custom build command for `foo v0.5.0 ([ROOT]/foo)`
[NOTE] To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
Caused by:
process didn't exit successfully: `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build` ([EXIT_STATUS]: 101)
"#]])
.run();
p.cargo("check -v")
.env("RUST_BACKTRACE", "1")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[ERROR] failed to run custom build command for `foo v0.5.0 ([ROOT]/foo)`
[NOTE] To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
Caused by:
process didn't exit successfully: `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build` ([EXIT_STATUS]: 101)
"#]])
.run();
}
#[cargo_test]
fn custom_build_script_failed_backtraces_message_with_debuginfo() {
// This is the same test as `custom_build_script_failed_backtraces_message` above, this time
// ensuring that the message dedicated to improving backtraces by requesting debuginfo is not
// shown when debuginfo is already turned on.
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("src/main.rs", "fn main() {}")
.file("build.rs", "fn main() { std::process::exit(101); }")
.build();
p.cargo("build -v")
.env("RUST_BACKTRACE", "1")
.env("CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG", "true")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[ERROR] failed to run custom build command for `foo v0.5.0 ([ROOT]/foo)`
Caused by:
process didn't exit successfully: `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build` ([EXIT_STATUS]: 101)
"#]])
.run();
}
#[cargo_test]
fn custom_build_env_vars() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
[features]
bar_feat = ["bar/foo", "bar/other-feature"]
[dependencies.bar]
path = "bar"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
build = "build.rs"
[features]
foo = []
other-feature = []
"#,
)
.file("bar/src/lib.rs", "pub fn hello() {}");
let cargo = cargo_exe().canonicalize().unwrap();
let cargo = cargo.to_str().unwrap();
let rustc = paths::resolve_executable("rustc".as_ref())
.unwrap()
.canonicalize()
.unwrap();
let rustc = rustc.to_str().unwrap();
let file_content = format!(
r##"
use std::env;
use std::path::Path;
fn main() {{
let _target = env::var("TARGET").unwrap();
let _ncpus = env::var("NUM_JOBS").unwrap();
let _dir = env::var("CARGO_MANIFEST_DIR").unwrap();
let opt = env::var("OPT_LEVEL").unwrap();
assert_eq!(opt, "0");
let opt = env::var("PROFILE").unwrap();
assert_eq!(opt, "debug");
let debug = env::var("DEBUG").unwrap();
assert_eq!(debug, "true");
let out = env::var("OUT_DIR").unwrap();
assert!(out.starts_with(r"{0}"));
assert!(Path::new(&out).is_dir());
let _host = env::var("HOST").unwrap();
let _feat = env::var("CARGO_FEATURE_FOO").unwrap();
let feat = env::var("CARGO_CFG_FEATURE").unwrap();
assert_eq!(feat, "foo,other-feature");
let cargo = env::var("CARGO").unwrap();
if env::var_os("CHECK_CARGO_IS_RUSTC").is_some() {{
assert_eq!(cargo, r#"{rustc}"#);
}} else {{
assert_eq!(cargo, r#"{cargo}"#);
}}
let rustc = env::var("RUSTC").unwrap();
assert_eq!(rustc, "rustc");
let rustdoc = env::var("RUSTDOC").unwrap();
assert_eq!(rustdoc, "rustdoc");
assert!(env::var("RUSTC_WRAPPER").is_err());
assert!(env::var("RUSTC_WORKSPACE_WRAPPER").is_err());
assert!(env::var("RUSTC_LINKER").is_err());
assert!(env::var("RUSTFLAGS").is_err());
let rustflags = env::var("CARGO_ENCODED_RUSTFLAGS").unwrap();
assert_eq!(rustflags, "");
}}
"##,
p.root()
.join("target")
.join("debug")
.join("build")
.display(),
);
let p = p.file("bar/build.rs", &file_content).build();
p.cargo("build --features bar_feat").run();
p.cargo("build --features bar_feat")
// we use rustc since $CARGO is only used if it points to a path that exists
.env("CHECK_CARGO_IS_RUSTC", "1")
.env(cargo::CARGO_ENV, rustc)
.run();
}
#[cargo_test]
fn custom_build_env_var_rustflags() {
let rustflags = "--cfg=special";
let rustflags_alt = "--cfg=notspecial";
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[build]
rustflags = ["{}"]
"#,
rustflags
),
)
.file(
"build.rs",
&format!(
r#"
use std::env;
fn main() {{
// Static assertion that exactly one of the cfg paths is always taken.
assert!(env::var("RUSTFLAGS").is_err());
let x;
#[cfg(special)]
{{ assert_eq!(env::var("CARGO_ENCODED_RUSTFLAGS").unwrap(), "{}"); x = String::new(); }}
#[cfg(notspecial)]
{{ assert_eq!(env::var("CARGO_ENCODED_RUSTFLAGS").unwrap(), "{}"); x = String::new(); }}
let _ = x;
}}
"#,
rustflags, rustflags_alt,
),
)
.file("src/lib.rs", "")
.build();
p.cargo("check").run();
// RUSTFLAGS overrides build.rustflags, so --cfg=special shouldn't be passed
p.cargo("check").env("RUSTFLAGS", rustflags_alt).run();
}
#[cargo_test]
fn custom_build_env_var_encoded_rustflags() {
// NOTE: We use "-Clink-arg=-B nope" here rather than, say, "-A missing_docs", since for the
// latter it won't matter if the whitespace accidentally gets split, as rustc will do the right
// thing either way.
let p = project()
.file(
".cargo/config.toml",
r#"
[build]
rustflags = ["-Clink-arg=-B nope", "--cfg=foo"]
"#,
)
.file(
"build.rs",
r#"
use std::env;
fn main() {{
assert_eq!(env::var("CARGO_ENCODED_RUSTFLAGS").unwrap(), "-Clink-arg=-B nope\x1f--cfg=foo");
}}
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check").run();
}
#[cargo_test]
fn custom_build_env_var_rustc_wrapper() {
let wrapper = tools::echo_wrapper();
let p = project()
.file(
"build.rs",
r#"
use std::env;
fn main() {{
assert_eq!(
env::var("RUSTC_WRAPPER").unwrap(),
env::var("CARGO_RUSTC_WRAPPER_CHECK").unwrap()
);
}}
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check")
.env("CARGO_BUILD_RUSTC_WRAPPER", &wrapper)
.env("CARGO_RUSTC_WRAPPER_CHECK", &wrapper)
.run();
}
#[cargo_test]
fn custom_build_env_var_rustc_workspace_wrapper() {
let wrapper = tools::echo_wrapper();
// Workspace wrapper should be set for any crate we're operating directly on.
let p = project()
.file(
"build.rs",
r#"
use std::env;
fn main() {{
assert_eq!(
env::var("RUSTC_WORKSPACE_WRAPPER").unwrap(),
env::var("CARGO_RUSTC_WORKSPACE_WRAPPER_CHECK").unwrap()
);
}}
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check")
.env("CARGO_BUILD_RUSTC_WORKSPACE_WRAPPER", &wrapper)
.env("CARGO_RUSTC_WORKSPACE_WRAPPER_CHECK", &wrapper)
.run();
// But should not be set for a crate from the registry, as then it's not in a workspace.
Package::new("bar", "0.1.0")
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.1.0"
edition = "2015"
links = "a"
"#,
)
.file(
"build.rs",
r#"
use std::env;
fn main() {{
assert!(env::var("RUSTC_WORKSPACE_WRAPPER").is_err());
}}
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
[dependencies]
bar = "0.1"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check")
.env("CARGO_BUILD_RUSTC_WORKSPACE_WRAPPER", &wrapper)
.run();
}
#[cargo_test]
fn custom_build_env_var_rustc_linker() {
if cross_compile::disabled() {
return;
}
let target = cross_compile::alternate();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}]
linker = "/path/to/linker"
"#,
target
),
)
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert!(env::var("RUSTC_LINKER").unwrap().ends_with("/path/to/linker"));
}
"#,
)
.file("src/lib.rs", "")
.build();
// no crate type set => linker never called => build succeeds if and
// only if build.rs succeeds, despite linker binary not existing.
p.cargo("build --target").arg(&target).run();
}
// Only run this test on linux, since it's difficult to construct
// a case suitable for all platforms.
// See:https://github.com/rust-lang/cargo/pull/12535#discussion_r1306618264
#[cargo_test]
#[cfg(target_os = "linux")]
fn custom_build_env_var_rustc_linker_with_target_cfg() {
if cross_compile::disabled() {
return;
}
let target = cross_compile::alternate();
let p = project()
.file(
".cargo/config.toml",
r#"
[target.'cfg(target_pointer_width = "32")']
linker = "/path/to/linker"
"#,
)
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert!(env::var("RUSTC_LINKER").unwrap().ends_with("/path/to/linker"));
}
"#,
)
.file("src/lib.rs", "")
.build();
// no crate type set => linker never called => build succeeds if and
// only if build.rs succeeds, despite linker binary not existing.
p.cargo("build --target").arg(&target).run();
}
#[cargo_test]
fn custom_build_env_var_rustc_linker_bad_host_target() {
let target = rustc_host();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}]
linker = "/path/to/linker"
"#,
target
),
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
// build.rs should fail since host == target when no target is set
p.cargo("build --verbose")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..]-C linker=[..]/path/to/linker [..]`
[ERROR] linker `[..]/path/to/linker` not found
...
"#]])
.run();
}
#[cargo_test]
fn custom_build_env_var_rustc_linker_host_target() {
let target = rustc_host();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
target-applies-to-host = false
[target.{}]
linker = "/path/to/linker"
"#,
target
),
)
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert!(env::var("RUSTC_LINKER").unwrap().ends_with("/path/to/linker"));
}
"#,
)
.file("src/lib.rs", "")
.build();
// no crate type set => linker never called => build succeeds if and
// only if build.rs succeeds, despite linker binary not existing.
p.cargo("build -Z target-applies-to-host --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["target-applies-to-host"])
.run();
}
#[cargo_test]
fn custom_build_env_var_rustc_linker_host_target_env() {
let target = rustc_host();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}]
linker = "/path/to/linker"
"#,
target
),
)
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert!(env::var("RUSTC_LINKER").unwrap().ends_with("/path/to/linker"));
}
"#,
)
.file("src/lib.rs", "")
.build();
// no crate type set => linker never called => build succeeds if and
// only if build.rs succeeds, despite linker binary not existing.
p.cargo("build -Z target-applies-to-host --target")
.env("CARGO_TARGET_APPLIES_TO_HOST", "false")
.arg(&target)
.masquerade_as_nightly_cargo(&["target-applies-to-host"])
.run();
}
#[cargo_test]
fn custom_build_invalid_host_config_feature_flag() {
let target = rustc_host();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}]
linker = "/path/to/linker"
"#,
target
),
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
// build.rs should fail due to -Zhost-config being set without -Ztarget-applies-to-host
p.cargo("build -Z host-config --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["host-config"])
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] the -Zhost-config flag requires the -Ztarget-applies-to-host flag to be set
"#]])
.run();
}
#[cargo_test]
fn custom_build_linker_host_target_with_bad_host_config() {
let target = rustc_host();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[host]
linker = "/path/to/host/linker"
[target.{}]
linker = "/path/to/target/linker"
"#,
target
),
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
// build.rs should fail due to bad host linker being set
p.cargo("build -Z target-applies-to-host -Z host-config --verbose --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["target-applies-to-host", "host-config"])
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..]-C linker=[..]/path/to/host/linker [..]`
[ERROR] linker `[..]/path/to/host/linker` not found
...
"#]])
.run();
}
#[cargo_test]
fn custom_build_linker_bad_host() {
let target = rustc_host();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[host]
linker = "/path/to/host/linker"
[target.{}]
linker = "/path/to/target/linker"
"#,
target
),
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
// build.rs should fail due to bad host linker being set
p.cargo("build -Z target-applies-to-host -Z host-config --verbose --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["target-applies-to-host", "host-config"])
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..]-C linker=[..]/path/to/host/linker [..]`
[ERROR] linker `[..]/path/to/host/linker` not found
...
"#]])
.run();
}
#[cargo_test]
fn custom_build_linker_bad_host_with_arch() {
let target = rustc_host();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[host]
linker = "/path/to/host/linker"
[host.{}]
linker = "/path/to/host/arch/linker"
[target.{}]
linker = "/path/to/target/linker"
"#,
target, target
),
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
// build.rs should fail due to bad host linker being set
p.cargo("build -Z target-applies-to-host -Z host-config --verbose --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["target-applies-to-host", "host-config"])
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..]-C linker=[..]/path/to/host/arch/linker [..]`
[ERROR] linker `[..]/path/to/host/arch/linker` not found
...
"#]])
.run();
}
#[cargo_test]
fn custom_build_env_var_rustc_linker_cross_arch_host() {
let target = rustc_host();
let cross_target = cross_compile::alternate();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[host.{}]
linker = "/path/to/host/arch/linker"
[target.{}]
linker = "/path/to/target/linker"
"#,
cross_target, target
),
)
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert!(env::var("RUSTC_LINKER").unwrap().ends_with("/path/to/target/linker"));
}
"#,
)
.file("src/lib.rs", "")
.build();
// build.rs should be built fine since cross target != host target.
// assertion should succeed since it's still passed the target linker
p.cargo("build -Z target-applies-to-host -Z host-config --verbose --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["target-applies-to-host", "host-config"])
.run();
}
#[cargo_test]
fn custom_build_linker_bad_cross_arch_host() {
let target = rustc_host();
let cross_target = cross_compile::alternate();
let p = project()
.file(
".cargo/config.toml",
&format!(
r#"
[host]
linker = "/path/to/host/linker"
[host.{}]
linker = "/path/to/host/arch/linker"
[target.{}]
linker = "/path/to/target/linker"
"#,
cross_target, target
),
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
// build.rs should fail due to bad host linker being set
p.cargo("build -Z target-applies-to-host -Z host-config --verbose --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["target-applies-to-host", "host-config"])
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin [..] -C linker=[..]/path/to/host/linker [..]`
[ERROR] linker `[..]/path/to/host/linker` not found
...
"#]])
.run();
}
#[cargo_test]
fn custom_build_script_wrong_rustc_flags() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"build.rs",
r#"fn main() { println!("cargo::rustc-flags=-aaa -bbb"); }"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[ERROR] Only `-l` and `-L` flags are allowed in build script of `foo v0.5.0 ([ROOT]/foo)`: `-aaa -bbb`
"#]])
.run();
}
#[cargo_test]
fn custom_build_script_rustc_flags() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
[dependencies.foo]
path = "foo"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"foo/Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("foo/src/lib.rs", "")
.file(
"foo/build.rs",
r#"
fn main() {
let root = std::env::current_dir().unwrap();
let root = root.parent().unwrap();
println!("cargo::rustc-flags=-l nonexistinglib \
-L {R}/dummy-path1 -L {R}/dummy-path2", R=root.display());
}
"#,
)
.build();
p.root().join("dummy-path1").mkdir_p();
p.root().join("dummy-path2").mkdir_p();
p.cargo("build --verbose")
.with_stderr_data(str![[r#"
[LOCKING] 1 package to latest compatible version
[COMPILING] foo v0.5.0 ([ROOT]/foo/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 foo/build.rs [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo --edition=2015 foo/src/lib.rs [..]-L dependency=[ROOT]/foo/target/debug/deps -L [ROOT]/foo/dummy-path1 -L [ROOT]/foo/dummy-path2 -l nonexistinglib`
[COMPILING] bar v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name bar --edition=2015 src/main.rs [..]-L dependency=[ROOT]/foo/target/debug/deps --extern foo=[ROOT]/foo/target/debug/deps/libfoo-[HASH].rlib -L [ROOT]/foo/dummy-path1 -L [ROOT]/foo/dummy-path2`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]).run();
}
#[cargo_test]
fn custom_build_script_rustc_flags_no_space() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
[dependencies.foo]
path = "foo"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"foo/Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = ["wycats@example.com"]
build = "build.rs"
"#,
)
.file("foo/src/lib.rs", "")
.file(
"foo/build.rs",
r#"
fn main() {
let root = std::env::current_dir().unwrap();
let root = root.parent().unwrap();
println!("cargo::rustc-flags=-lnonexistinglib \
-L {R}/dummy-path1 -L {R}/dummy-path2", R=root.display());
}
"#,
)
.build();
p.root().join("dummy-path1").mkdir_p();
p.root().join("dummy-path2").mkdir_p();
p.cargo("build --verbose").with_stderr_data(str![[r#"
[LOCKING] 1 package to latest compatible version
[COMPILING] foo v0.5.0 ([ROOT]/foo/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 foo/build.rs [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo --edition=2015 foo/src/lib.rs [..]-L dependency=[ROOT]/foo/target/debug/deps -L [ROOT]/foo/dummy-path1 -L [ROOT]/foo/dummy-path2 -l nonexistinglib`
[COMPILING] bar v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name bar --edition=2015 src/main.rs [..]-L dependency=[ROOT]/foo/target/debug/deps --extern foo=[ROOT]/foo/target/debug/deps/libfoo-[HASH].rlib -L [ROOT]/foo/dummy-path1 -L [ROOT]/foo/dummy-path2`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]).run();
}
#[cargo_test]
fn links_no_build_cmd() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
Caused by:
package specifies that it links to `a` but does not have a custom build script
"#]])
.run();
}
#[cargo_test]
fn links_duplicates() {
// this tests that the links_duplicates are caught at resolver time
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
build = "build.rs"
[dependencies.a-sys]
path = "a-sys"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "")
.file(
"a-sys/Cargo.toml",
r#"
[package]
name = "a-sys"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("a-sys/src/lib.rs", "")
.file("a-sys/build.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] failed to select a version for `a-sys`.
... required by package `foo v0.5.0 ([ROOT]/foo)`
versions that meet the requirements `*` are: 0.5.0
the package `a-sys` links to the native library `a`, but it conflicts with a previous package which links to `a` as well:
package `foo v0.5.0 ([ROOT]/foo)`
Only one package in the dependency graph may specify the same links value. This helps ensure that only one copy of a native library is linked in the final binary. Try to adjust your dependencies so that only one package uses the `links = "a"` value. For more information, see https://doc.rust-lang.org/cargo/reference/resolver.html#links.
failed to select a version for `a-sys` which could resolve this conflict
"#]])
.run();
}
#[cargo_test]
fn links_duplicates_old_registry() {
// Test old links validator. See `validate_links`.
Package::new("bar", "0.1.0")
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.1.0"
edition = "2015"
links = "a"
"#,
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
links = "a"
[dependencies]
bar = "0.1"
"#,
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[UPDATING] `dummy-registry` index
[LOCKING] 1 package to latest compatible version
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 (registry `dummy-registry`)
[ERROR] multiple packages link to native library `a`, but a native library can be linked only once
package `bar v0.1.0`
... which satisfies dependency `bar = "^0.1"` (locked to 0.1.0) of package `foo v0.1.0 ([ROOT]/foo)`
links to native library `a`
package `foo v0.1.0 ([ROOT]/foo)`
also links to native library `a`
"#]])
.run();
}
#[cargo_test]
fn links_duplicates_deep_dependency() {
// this tests that the links_duplicates are caught at resolver time
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
build = "build.rs"
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.a-sys]
path = "a-sys"
"#,
)
.file("a/src/lib.rs", "")
.file("a/build.rs", "")
.file(
"a/a-sys/Cargo.toml",
r#"
[package]
name = "a-sys"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("a/a-sys/src/lib.rs", "")
.file("a/a-sys/build.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] failed to select a version for `a-sys`.
... required by package `a v0.5.0 ([ROOT]/foo/a)`
... which satisfies path dependency `a` of package `foo v0.5.0 ([ROOT]/foo)`
versions that meet the requirements `*` are: 0.5.0
the package `a-sys` links to the native library `a`, but it conflicts with a previous package which links to `a` as well:
package `foo v0.5.0 ([ROOT]/foo)`
Only one package in the dependency graph may specify the same links value. This helps ensure that only one copy of a native library is linked in the final binary. Try to adjust your dependencies so that only one package uses the `links = "a"` value. For more information, see https://doc.rust-lang.org/cargo/reference/resolver.html#links.
failed to select a version for `a-sys` which could resolve this conflict
"#]])
.run();
}
#[cargo_test]
fn overrides_and_links() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").ok().expect("FOO missing"),
"bar");
assert_eq!(env::var("DEP_FOO_BAR").ok().expect("BAR missing"),
"baz");
}
"#,
)
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}.foo]
rustc-flags = "-L foo -L bar"
foo = "bar"
bar = "baz"
"#,
target
),
)
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file("a/build.rs", "not valid rust code")
.build();
p.cargo("build -v")
.with_stderr_data(
str![[r#"
[LOCKING] 1 package to latest compatible version
[COMPILING] a v0.5.0 ([ROOT]/foo/a)
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `rustc --crate-name a [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L foo -L bar`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]
.unordered(),
)
.run();
}
#[cargo_test]
fn unused_overrides() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}.foo]
rustc-flags = "-L foo -L bar"
foo = "bar"
bar = "baz"
"#,
target
),
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn links_passes_env_vars() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").unwrap(), "bar");
assert_eq!(env::var("DEP_FOO_BAR").unwrap(), "baz");
}
"#,
)
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
use std::env;
fn main() {
let lib = env::var("CARGO_MANIFEST_LINKS").unwrap();
assert_eq!(lib, "foo");
println!("cargo::metadata=foo=bar");
println!("cargo::metadata=bar=baz");
}
"#,
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn only_rerun_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.build();
p.cargo("build -v").run();
p.root().move_into_the_past();
p.change_file("some-new-file", "");
p.root().move_into_the_past();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the precalculated components changed
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn rebuild_continues_to_pass_env_vars() {
let a = project()
.at("a")
.file(
"Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::time::Duration;
fn main() {
println!("cargo::metadata=foo=bar");
println!("cargo::metadata=bar=baz");
std::thread::sleep(Duration::from_millis(500));
}
"#,
)
.build();
a.root().move_into_the_past();
let p = project()
.file(
"Cargo.toml",
&format!(
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.a]
path = '{}'
"#,
a.root().display()
),
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").unwrap(), "bar");
assert_eq!(env::var("DEP_FOO_BAR").unwrap(), "baz");
}
"#,
)
.build();
p.cargo("build -v").run();
p.root().move_into_the_past();
p.change_file("some-new-file", "");
p.root().move_into_the_past();
p.cargo("build -v").run();
}
#[cargo_test]
fn testing_and_such() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.build();
println!("build");
p.cargo("build -v").run();
p.root().move_into_the_past();
p.change_file("src/lib.rs", "");
p.root().move_into_the_past();
println!("test");
p.cargo("test -vj1")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the precalculated components changed
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `test` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `[ROOT]/foo/target/debug/deps/foo-[HASH][EXE]`
[DOCTEST] foo
[RUNNING] `rustdoc [..]--test [..]`
"#]])
.with_stdout_data(str![[r#"
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
"#]])
.run();
println!("doc");
p.cargo("doc -v")
.with_stderr_data(str![[r#"
[DOCUMENTING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustdoc [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[GENERATED] [ROOT]/foo/target/doc/foo/index.html
"#]])
.run();
p.change_file("src/main.rs", "fn main() {}");
println!("run");
p.cargo("run")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/debug/foo[EXE]`
"#]])
.run();
}
#[cargo_test]
fn propagation_of_l_flags() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "bar"
build = "build.rs"
[dependencies.b]
path = "../b"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"fn main() { println!("cargo::rustc-flags=-L bar"); }"#,
)
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("b/src/lib.rs", "")
.file("b/build.rs", "bad file")
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}.foo]
rustc-flags = "-L foo"
"#,
target
),
)
.build();
p.cargo("build -v -j1")
.with_stderr_data(str![[r#"
...
[RUNNING] `rustc --crate-name a [..] -L bar -L foo`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..] -L bar -L foo`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn propagation_of_l_flags_new() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "bar"
build = "build.rs"
[dependencies.b]
path = "../b"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=bar");
}
"#,
)
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("b/src/lib.rs", "")
.file("b/build.rs", "bad file")
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}.foo]
rustc-link-search = ["foo"]
"#,
target
),
)
.build();
p.cargo("build -v -j1")
.with_stderr_data(str![[r#"
...
[RUNNING] `rustc --crate-name a [..] -L bar -L foo`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..] -L bar -L foo`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn build_deps_simple() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[build-dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
"
#[allow(unused_extern_crates)]
extern crate a;
fn main() {}
",
)
.file("a/Cargo.toml", &basic_manifest("a", "0.5.0"))
.file("a/src/lib.rs", "")
.build();
p.cargo("build -v").with_stderr_data(str![[r#"
[LOCKING] 1 package to latest compatible version
[COMPILING] a v0.5.0 ([ROOT]/foo/a)
[RUNNING] `rustc --crate-name a [..]`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build [..] build.rs [..] --extern a=[ROOT]/foo/target/debug/deps/liba-[HASH].rlib`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]).run();
}
#[cargo_test]
fn build_deps_not_for_normal() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[build-dependencies.aaaaa]
path = "a"
"#,
)
.file(
"src/lib.rs",
"#[allow(unused_extern_crates)] extern crate aaaaa;",
)
.file(
"build.rs",
"
#[allow(unused_extern_crates)]
extern crate aaaaa;
fn main() {}
",
)
.file("a/Cargo.toml", &basic_manifest("aaaaa", "0.5.0"))
.file("a/src/lib.rs", "")
.build();
p.cargo("build -v --target")
.arg(&target)
.with_status(101)
.with_stderr_data(
str![[r#"
...
error[E0463]: can't find crate for `aaaaa`
[ERROR] could not compile `foo` (lib) due to 1 previous error
Caused by:
process didn't exit successfully: `rustc --crate-name foo[..]` ([EXIT_STATUS]: 1)
"#]]
.unordered(),
)
.run();
}
#[cargo_test]
fn build_cmd_with_a_build_cmd() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[build-dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
"
#[allow(unused_extern_crates)]
extern crate a;
fn main() {}
",
)
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[build-dependencies.b]
path = "../b"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
"#[allow(unused_extern_crates)] extern crate b; fn main() {}",
)
.file("b/Cargo.toml", &basic_manifest("b", "0.5.0"))
.file("b/src/lib.rs", "")
.build();
p.cargo("build -v").with_stderr_data(str![[r#"
[LOCKING] 2 packages to latest compatible versions
[COMPILING] b v0.5.0 ([ROOT]/foo/b)
[RUNNING] `rustc --crate-name b [..]`
[COMPILING] a v0.5.0 ([ROOT]/foo/a)
[RUNNING] `rustc --crate-name build_script_build [..] a/build.rs [..] --extern b=[ROOT]/foo/target/debug/deps/libb-[HASH].rlib`
[RUNNING] `[ROOT]/foo/target/debug/build/a-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name a [..]a/src/lib.rs [..]--crate-type lib --emit=[..]link[..]-C metadata=[..] --out-dir [ROOT]/foo/target/debug/deps -L dependency=[ROOT]/foo/target/debug/deps`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build --edition=2015 build.rs [..]--crate-type bin --emit=[..]link[..]-C metadata=[..] --out-dir [ROOT]/foo/target/debug/build/foo-[HASH] -L dependency=[ROOT]/foo/target/debug/deps --extern a=[ROOT]/foo/target/debug/deps/liba-[HASH].rlib`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]src/lib.rs [..]--crate-type lib --emit=[..]link[..]-C debuginfo=2 [..]-C metadata=[..] --out-dir [ROOT]/foo/target/debug/deps -L dependency=[ROOT]/foo/target/debug/deps`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]).run();
}
#[cargo_test]
fn out_dir_is_preserved() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
use std::fs::File;
use std::path::Path;
fn main() {
let out = env::var("OUT_DIR").unwrap();
File::create(Path::new(&out).join("foo")).unwrap();
}
"#,
)
.build();
// Make the file
p.cargo("build -v").run();
// Change to asserting that it's there
p.change_file(
"build.rs",
r#"
use std::env;
use std::fs::File;
use std::path::Path;
fn main() {
let out = env::var("OUT_DIR").unwrap();
File::open(&Path::new(&out).join("foo")).unwrap();
}
"#,
);
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the file `build.rs` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
// Run a fresh build where file should be preserved
p.cargo("build -v")
.with_stderr_data(str![[r#"
[FRESH] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
// One last time to make sure it's still there.
p.change_file("foo", "");
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the precalculated components changed
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn output_separate_lines() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-flags=-L foo");
println!("cargo::rustc-flags=-l static=foo");
}
"#,
)
.build();
p.cargo("build -v")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L foo -l static=foo`
[ERROR] could not find native static library `foo`, perhaps an -L flag is missing?
...
"#]])
.run();
}
#[cargo_test]
fn output_separate_lines_new() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=foo");
println!("cargo::rustc-link-lib=static=foo");
println!("cargo::rustc-link-lib=bar");
println!("cargo::rustc-link-search=bar");
}
"#,
)
.build();
// The order of the arguments passed to rustc is important.
p.cargo("build -v")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L foo -L bar -l static=foo -l bar`
[ERROR] could not find native static library `foo`, perhaps an -L flag is missing?
...
"#]])
.run();
}
#[cargo_test]
fn code_generation() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"src/main.rs",
r#"
include!(concat!(env!("OUT_DIR"), "/hello.rs"));
fn main() {
println!("{}", message());
}
"#,
)
.file(
"build.rs",
r#"
use std::env;
use std::fs;
use std::path::PathBuf;
fn main() {
let dst = PathBuf::from(env::var("OUT_DIR").unwrap());
fs::write(dst.join("hello.rs"),
"
pub fn message() -> &'static str {
\"Hello, World!\"
}
")
.unwrap();
}
"#,
)
.build();
p.cargo("run")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/debug/foo[EXE]`
"#]])
.with_stdout_data(str![[r#"
Hello, World!
"#]])
.run();
p.cargo("test").run();
}
#[cargo_test]
fn release_with_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {}
"#,
)
.build();
p.cargo("build -v --release").run();
}
#[cargo_test]
fn build_script_only() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("build.rs", r#"fn main() {}"#)
.build();
p.cargo("build -v")
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
Caused by:
no targets specified in the manifest
either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present
"#]])
.run();
}
#[cargo_test]
fn shared_dep_with_a_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
[build-dependencies.b]
path = "b"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies.a]
path = "../a"
"#,
)
.file("b/src/lib.rs", "")
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn test_a_lib_with_a_build_command() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"src/lib.rs",
r#"
include!(concat!(env!("OUT_DIR"), "/foo.rs"));
/// ```
/// foo::bar();
/// ```
pub fn bar() {
assert_eq!(foo(), 1);
}
"#,
)
.file(
"build.rs",
r#"
use std::env;
use std::fs;
use std::path::PathBuf;
fn main() {
let out = PathBuf::from(env::var("OUT_DIR").unwrap());
fs::write(out.join("foo.rs"), "fn foo() -> i32 { 1 }").unwrap();
}
"#,
)
.build();
p.cargo("test").run();
}
#[cargo_test]
fn test_dev_dep_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dev-dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.build();
p.cargo("test").run();
}
#[cargo_test]
fn build_script_with_dynamic_native_dependency() {
let build = project()
.at("builder")
.file(
"Cargo.toml",
r#"
[package]
name = "builder"
version = "0.0.1"
edition = "2015"
authors = []
[lib]
name = "builder"
crate-type = ["dylib"]
"#,
)
.file("src/lib.rs", r#"#[no_mangle] pub extern "C" fn foo() {}"#)
.build();
let foo = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
[build-dependencies.bar]
path = "bar"
"#,
)
.file("build.rs", "extern crate bar; fn main() { bar::bar() }")
.file("src/lib.rs", "")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"bar/build.rs",
r#"
use std::env;
use std::fs;
use std::path::PathBuf;
fn main() {
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
let root = PathBuf::from(env::var("BUILDER_ROOT").unwrap());
let file = format!("{}builder{}",
env::consts::DLL_PREFIX,
env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst = out_dir.join(&file);
fs::copy(src, dst).unwrap();
if cfg!(target_env = "msvc") {
fs::copy(root.join("builder.dll.lib"),
out_dir.join("builder.dll.lib")).unwrap();
}
println!("cargo::rustc-link-search=native={}", out_dir.display());
}
"#,
)
.file(
"bar/src/lib.rs",
r#"
pub fn bar() {
#[cfg_attr(not(target_env = "msvc"), link(name = "builder"))]
#[cfg_attr(target_env = "msvc", link(name = "builder.dll"))]
extern "C" { fn foo(); }
unsafe { foo() }
}
"#,
)
.build();
build
.cargo("build -v")
.env("CARGO_LOG", "cargo::ops::cargo_rustc")
.run();
let root = build.root().join("target").join("debug");
foo.cargo("build -v")
.env("BUILDER_ROOT", root)
.env("CARGO_LOG", "cargo::ops::cargo_rustc")
.run();
}
#[cargo_test]
fn profile_and_opt_level_set_correctly() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("OPT_LEVEL").unwrap(), "3");
assert_eq!(env::var("PROFILE").unwrap(), "release");
assert_eq!(env::var("DEBUG").unwrap(), "false");
}
"#,
)
.build();
p.cargo("bench").run();
}
#[cargo_test]
fn profile_debug_0() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
[profile.dev]
debug = 0
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("OPT_LEVEL").unwrap(), "0");
assert_eq!(env::var("PROFILE").unwrap(), "debug");
assert_eq!(env::var("DEBUG").unwrap(), "false");
}
"#,
)
.build();
p.cargo("build").run();
}
#[cargo_test]
fn build_script_with_lto() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
[profile.dev]
lto = true
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.build();
p.cargo("build").run();
}
#[cargo_test]
fn test_duplicate_deps() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.bar]
path = "bar"
[build-dependencies.bar]
path = "bar"
"#,
)
.file(
"src/main.rs",
r#"
extern crate bar;
fn main() { bar::do_nothing() }
"#,
)
.file(
"build.rs",
r#"
extern crate bar;
fn main() { bar::do_nothing() }
"#,
)
.file("bar/Cargo.toml", &basic_manifest("bar", "0.1.0"))
.file("bar/src/lib.rs", "pub fn do_nothing() {}")
.build();
p.cargo("build").run();
}
#[cargo_test]
fn cfg_feedback() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/main.rs", "#[cfg(foo)] fn main() {}")
.file(
"build.rs",
r#"fn main() { println!("cargo::rustc-cfg=foo"); }"#,
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn cfg_override() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("src/main.rs", "#[cfg(foo)] fn main() {}")
.file("build.rs", "")
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}.a]
rustc-cfg = ["foo"]
"#,
target
),
)
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn cfg_test() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"fn main() {
println!("cargo::rustc-cfg=foo");
println!("cargo::rustc-check-cfg=cfg(foo)");
}"#,
)
.file(
"src/lib.rs",
r#"
///
/// ```
/// extern crate foo;
///
/// fn main() {
/// foo::foo()
/// }
/// ```
///
#[cfg(foo)]
pub fn foo() {}
#[cfg(foo)]
#[test]
fn test_foo() {
foo()
}
"#,
)
.file("tests/test.rs", "#[cfg(foo)] #[test] fn test_bar() {}")
.build();
p.cargo("test -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..] --cfg foo[..]`
[RUNNING] `rustc --crate-name foo [..] --cfg foo[..]`
[RUNNING] `rustc --crate-name test [..] --cfg foo[..]`
[FINISHED] `test` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `[ROOT]/foo/target/debug/deps/foo-[HASH][EXE]`
[RUNNING] `[ROOT]/foo/target/debug/deps/test-[HASH][EXE]`
[DOCTEST] foo
[RUNNING] `rustdoc [..]--cfg foo[..]`
"#]])
.with_stdout_data(str![[r#"
running 1 test
test test_foo ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
running 1 test
test test_bar ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
running 1 test
test src/lib.rs - foo (line 3) ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn cfg_doc() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.bar]
path = "bar"
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo::rustc-cfg=foo"); }"#,
)
.file("src/lib.rs", "#[cfg(foo)] pub fn foo() {}")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"bar/build.rs",
r#"fn main() { println!("cargo::rustc-cfg=bar"); }"#,
)
.file("bar/src/lib.rs", "#[cfg(bar)] pub fn bar() {}")
.build();
p.cargo("doc").run();
assert!(p.root().join("target/doc").is_dir());
assert!(p.root().join("target/doc/foo/fn.foo.html").is_file());
assert!(p.root().join("target/doc/bar/fn.bar.html").is_file());
}
#[cargo_test]
fn cfg_override_test() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
links = "a"
[lints.rust]
unexpected_cfgs = "allow" # bc of override, stable/nightly, tests
"#,
)
.file("build.rs", "")
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}.a]
rustc-cfg = ["foo"]
"#,
rustc_host()
),
)
.file(
"src/lib.rs",
r#"
///
/// ```
/// extern crate foo;
///
/// fn main() {
/// foo::foo()
/// }
/// ```
///
#[cfg(foo)]
pub fn foo() {}
#[cfg(foo)]
#[test]
fn test_foo() {
foo()
}
"#,
)
.file("tests/test.rs", "#[cfg(foo)] #[test] fn test_bar() {}")
.build();
p.cargo("test -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo[..]`
[RUNNING] `rustc --crate-name foo[..]`
[RUNNING] `rustc --crate-name test[..]`
[FINISHED] `test` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `[ROOT]/foo/target/debug/deps/foo-[HASH][EXE]`
[RUNNING] `[ROOT]/foo/target/debug/deps/test-[HASH][EXE]`
[DOCTEST] foo
[RUNNING] `rustdoc [..] --cfg foo[..]`
"#]])
.with_stdout_data(str![[r#"
running 1 test
test test_foo ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
running 1 test
test test_bar ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
running 1 test
test src/lib.rs - foo (line 3) ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn cfg_override_doc() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
links = "a"
[dependencies.bar]
path = "bar"
"#,
)
.file(
".cargo/config.toml",
&format!(
r#"
[target.{target}.a]
rustc-cfg = ["foo"]
[target.{target}.b]
rustc-cfg = ["bar"]
"#,
target = rustc_host()
),
)
.file("build.rs", "")
.file("src/lib.rs", "#[cfg(foo)] pub fn foo() {}")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
links = "b"
"#,
)
.file("bar/build.rs", "")
.file("bar/src/lib.rs", "#[cfg(bar)] pub fn bar() {}")
.build();
p.cargo("doc").run();
assert!(p.root().join("target/doc").is_dir());
assert!(p.root().join("target/doc/foo/fn.foo.html").is_file());
assert!(p.root().join("target/doc/bar/fn.bar.html").is_file());
}
#[cargo_test]
fn env_build() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"src/main.rs",
r#"
const FOO: &'static str = env!("FOO");
fn main() {
println!("{}", FOO);
}
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo::rustc-env=FOO=foo"); }"#,
)
.build();
p.cargo("build -v").run();
p.cargo("run -v")
.with_stdout_data(str![[r#"
foo
"#]])
.run();
}
#[cargo_test]
fn env_test() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo::rustc-env=FOO=foo"); }"#,
)
.file(
"src/lib.rs",
r#"pub const FOO: &'static str = env!("FOO"); "#,
)
.file(
"tests/test.rs",
r#"
extern crate foo;
#[test]
fn test_foo() {
assert_eq!("foo", foo::FOO);
}
"#,
)
.build();
p.cargo("test -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build[..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo[..]`
[RUNNING] `rustc --crate-name foo[..]`
[RUNNING] `rustc --crate-name test[..]`
[FINISHED] `test` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `[ROOT]/foo/target/debug/deps/foo-[HASH][EXE]`
[RUNNING] `[ROOT]/foo/target/debug/deps/test-[HASH][EXE]`
[DOCTEST] foo
[RUNNING] `rustdoc --edition=2015 --crate-type lib --color auto --crate-name foo[..]`
"#]])
.with_stdout_data(str![[r#"
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
running 1 test
test test_foo ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn env_doc() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"src/main.rs",
r#"
const FOO: &'static str = env!("FOO");
fn main() {}
"#,
)
.file(
"build.rs",
r#"fn main() { println!("cargo::rustc-env=FOO=foo"); }"#,
)
.build();
p.cargo("doc -v").run();
}
#[cargo_test]
fn flags_go_into_tests() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
b = { path = "b" }
"#,
)
.file("src/lib.rs", "")
.file("tests/foo.rs", "")
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
a = { path = "../a" }
"#,
)
.file("b/src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
let path = std::env::current_dir().unwrap().parent().unwrap().join("link-dir");
println!("cargo::rustc-link-search={}", path.display());
}
"#,
)
.build();
p.root().join("link-dir").mkdir_p();
p.cargo("test -v --test=foo")
.with_stderr_data(str![[r#"
[LOCKING] 2 packages to latest compatible versions
[COMPILING] a v0.5.0 ([ROOT]/foo/a)
[RUNNING] `rustc [..] a/build.rs [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/a-[HASH]/build-script-build`
[RUNNING] `rustc [..] a/src/lib.rs [..] -L [ROOT]/foo/link-dir`
[COMPILING] b v0.5.0 ([ROOT]/foo/b)
[RUNNING] `rustc [..] b/src/lib.rs [..] -L [ROOT]/foo/link-dir`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc [..] src/lib.rs [..] -L [ROOT]/foo/link-dir`
[RUNNING] `rustc [..] tests/foo.rs [..] -L [ROOT]/foo/link-dir`
[FINISHED] `test` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `[ROOT]/foo/target/debug/deps/foo-[HASH][EXE]`
"#]])
.with_stdout_data(str![[r#"
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
"#]])
.run();
p.cargo("test -v -pb --lib")
.with_stderr_data(str![[r#"
[FRESH] a v0.5.0 ([ROOT]/foo/a)
[COMPILING] b v0.5.0 ([ROOT]/foo/b)
[RUNNING] `rustc --crate-name b [..] -L [ROOT]/foo/link-dir`
[FINISHED] `test` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `[ROOT]/foo/target/debug/deps/b-[HASH][EXE]`
"#]])
.with_stdout_data(str![[r#"
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn diamond_passes_args_only_once() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
a = { path = "a" }
b = { path = "b" }
"#,
)
.file("src/lib.rs", "")
.file("tests/foo.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
b = { path = "../b" }
c = { path = "../c" }
"#,
)
.file("a/src/lib.rs", "")
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
c = { path = "../c" }
"#,
)
.file("b/src/lib.rs", "")
.file(
"c/Cargo.toml",
r#"
[package]
name = "c"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"c/build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=native=test");
}
"#,
)
.file("c/src/lib.rs", "")
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[LOCKING] 3 packages to latest compatible versions
[COMPILING] c v0.5.0 ([ROOT]/foo/c)
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/c-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name c [..] -L native=test`
[COMPILING] b v0.5.0 ([ROOT]/foo/b)
[RUNNING] `rustc --crate-name b [..] -L native=test`
[COMPILING] a v0.5.0 ([ROOT]/foo/a)
[RUNNING] `rustc --crate-name a [..] -L native=test`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..] -L native=test`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn adding_an_override_invalidates() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(".cargo/config.toml", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=native=foo");
}
"#,
)
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L native=foo`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
p.change_file(
".cargo/config.toml",
&format!(
"
[target.{}.foo]
rustc-link-search = [\"native=bar\"]
",
target
),
);
p.cargo("build -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..] -L native=bar`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn changing_an_override_invalidates() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config.toml",
&format!(
"
[target.{}.foo]
rustc-link-search = [\"native=foo\"]
",
target
),
)
.file("build.rs", "")
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..] -L native=foo`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
p.change_file(
".cargo/config.toml",
&format!(
"
[target.{}.foo]
rustc-link-search = [\"native=bar\"]
",
target
),
);
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the precalculated components changed
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..] -L native=bar`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn fresh_builds_possible_with_link_libs() {
// The bug is non-deterministic. Sometimes you can get a fresh build
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "nativefoo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config.toml",
&format!(
"
[target.{}.nativefoo]
rustc-link-lib = [\"a\"]
rustc-link-search = [\"./b\"]
rustc-flags = \"-l z -L ./\"
",
target
),
)
.file("build.rs", "")
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[FRESH] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn fresh_builds_possible_with_multiple_metadata_overrides() {
// The bug is non-deterministic. Sometimes you can get a fresh build
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config.toml",
&format!(
"
[target.{}.foo]
a = \"\"
b = \"\"
c = \"\"
d = \"\"
e = \"\"
",
target
),
)
.file("build.rs", "")
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[FRESH] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn generate_good_d_files() {
// this is here to stop regression on an issue where build.rs rerun-if-changed paths aren't
// made absolute properly, which in turn interacts poorly with the dep-info-basedir setting,
// and the dep-info files have other-crate-relative paths spat out in them
let p = project()
.file(
"awoo/Cargo.toml",
r#"
[package]
name = "awoo"
version = "0.5.0"
edition = "2015"
build = "build.rs"
"#,
)
.file("awoo/src/lib.rs", "")
.file(
"awoo/build.rs",
r#"
fn main() {
println!("cargo::rerun-if-changed=build.rs");
println!("cargo::rerun-if-changed=barkbarkbark");
}
"#,
)
.file(
"Cargo.toml",
r#"
[package]
name = "meow"
version = "0.5.0"
edition = "2015"
[dependencies]
awoo = { path = "awoo" }
"#,
)
.file("src/main.rs", "fn main() {}")
.build();
p.cargo("build -v").run();
let dot_d_path = p.bin("meow").with_extension("d");
println!("*meow at* {:?}", dot_d_path);
let dot_d = fs::read_to_string(&dot_d_path).unwrap();
println!("*.d file content*: {}", &dot_d);
assert_e2e().eq(
&dot_d,
str![[r#"
[ROOT]/foo/target/debug/meow[EXE]: [ROOT]/foo/awoo/barkbarkbark [ROOT]/foo/awoo/build.rs [ROOT]/foo/awoo/src/lib.rs [ROOT]/foo/src/main.rs
"#]],
);
// paths relative to dependency roots should not be allowed
assert!(!dot_d
.split_whitespace()
.any(|v| v == "barkbarkbark" || v == "build.rs"));
p.change_file(
".cargo/config.toml",
r#"
[build]
dep-info-basedir="."
"#,
);
p.cargo("build -v").run();
let dot_d = fs::read_to_string(&dot_d_path).unwrap();
println!("*.d file content with dep-info-basedir*: {}", &dot_d);
assert_e2e().eq(
&dot_d,
str![[r#"
target/debug/meow[EXE]: awoo/barkbarkbark awoo/build.rs awoo/src/lib.rs src/main.rs
"#]],
);
// paths relative to dependency roots should not be allowed
assert!(!dot_d
.split_whitespace()
.any(|v| v == "barkbarkbark" || v == "build.rs"));
}
#[cargo_test]
fn generate_good_d_files_for_external_tools() {
// This tests having a relative paths going out of the
// project root in config's dep-info-basedir
let p = project_in("rust_things")
.file(
"awoo/Cargo.toml",
r#"
[package]
name = "awoo"
version = "0.5.0"
edition = "2015"
build = "build.rs"
"#,
)
.file("awoo/src/lib.rs", "")
.file(
"awoo/build.rs",
r#"
fn main() {
println!("cargo::rerun-if-changed=build.rs");
println!("cargo::rerun-if-changed=barkbarkbark");
}
"#,
)
.file(
"Cargo.toml",
r#"
[package]
name = "meow"
version = "0.5.0"
edition = "2015"
[dependencies]
awoo = { path = "awoo" }
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
".cargo/config.toml",
r#"
[build]
dep-info-basedir="../.."
"#,
)
.build();
p.cargo("build -v").run();
let dot_d_path = p.bin("meow").with_extension("d");
let dot_d = fs::read_to_string(&dot_d_path).unwrap();
println!("*.d file content with dep-info-basedir*: {}", &dot_d);
assert_e2e().eq(&dot_d, str![[r#"
rust_things/foo/target/debug/meow[EXE]: rust_things/foo/awoo/barkbarkbark rust_things/foo/awoo/build.rs rust_things/foo/awoo/src/lib.rs rust_things/foo/src/main.rs
"#]]);
}
#[cargo_test]
fn rebuild_only_on_explicit_paths() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rerun-if-changed=foo");
println!("cargo::rerun-if-changed=bar");
}
"#,
)
.build();
p.cargo("build -v").run();
// files don't exist, so should always rerun if they don't exist
println!("run without");
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the file `foo` is missing
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
sleep_ms(1000);
p.change_file("foo", "");
p.change_file("bar", "");
sleep_ms(1000); // make sure the to-be-created outfile has a timestamp distinct from the infiles
// now the exist, so run once, catch the mtime, then shouldn't run again
println!("run with");
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the file `foo` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
println!("run with2");
p.cargo("build -v")
.with_stderr_data(str![[r#"
[FRESH] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
sleep_ms(1000);
// random other files do not affect freshness
println!("run baz");
p.change_file("baz", "// modified");
p.cargo("build -v")
.with_stderr_data(str![[r#"
[FRESH] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
// but changing dependent files does
println!("run foo change");
p.change_file("foo", "// modified");
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the file `foo` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
// .. as does deleting a file
println!("run bar delete");
fs::remove_file(p.root().join("bar")).unwrap();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[DIRTY] foo v0.5.0 ([ROOT]/foo): the file `bar` is missing
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc [..] src/lib.rs [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn doctest_receives_build_link_args() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies.a]
path = "a"
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "bar"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=native=bar");
}
"#,
)
.build();
p.cargo("test -v")
.with_stderr_data(str![[r#"
...
[RUNNING] `rustdoc [..]--crate-name foo --test [..]-L native=bar[..]`
"#]])
.run();
}
#[cargo_test]
fn please_respect_the_dag() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies]
a = { path = 'a' }
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=native=foo");
}
"#,
)
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "bar"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=native=bar");
}
"#,
)
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
...
[RUNNING] `rustc --crate-name foo [..] -L native=foo -L native=bar`
...
"#]])
.run();
}
#[cargo_test]
fn non_utf8_output() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
use std::io::prelude::*;
fn main() {
let mut out = std::io::stdout();
// print something that's not utf8
out.write_all(b"\xff\xff\n").unwrap();
// now print some cargo metadata that's utf8
println!("cargo::rustc-cfg=foo");
// now print more non-utf8
out.write_all(b"\xff\xff\n").unwrap();
}
"#,
)
.file("src/main.rs", "#[cfg(foo)] fn main() {}")
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn custom_target_dir() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
a = { path = "a" }
"#,
)
.file("src/lib.rs", "")
.file(
".cargo/config.toml",
r#"
[build]
target-dir = 'test'
"#,
)
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.build();
p.cargo("build -v").run();
}
#[cargo_test]
fn panic_abort_with_build_scripts() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[profile.release]
panic = 'abort'
[dependencies]
a = { path = "a" }
"#,
)
.file(
"src/lib.rs",
"#[allow(unused_extern_crates)] extern crate a;",
)
.file("build.rs", "fn main() {}")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[build-dependencies]
b = { path = "../b" }
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
"#[allow(unused_extern_crates)] extern crate b; fn main() {}",
)
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
edition = "2015"
authors = []
"#,
)
.file("b/src/lib.rs", "")
.build();
p.cargo("build -v --release").run();
p.root().join("target").rm_rf();
p.cargo("test --release -v")
.with_stderr_does_not_contain("[..]panic=abort[..]")
.run();
}
#[cargo_test]
fn warnings_emitted() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
}
"#,
)
.build();
p.cargo("build")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[WARNING] foo@0.5.0: foo
[WARNING] foo@0.5.0: bar
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn errors_and_warnings_emitted_and_build_failed() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
println!("cargo::error=foo err");
println!("cargo::error=bar err");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[WARNING] foo@0.5.0: foo
[WARNING] foo@0.5.0: bar
[ERROR] foo@0.5.0: foo err
[ERROR] foo@0.5.0: bar err
[ERROR] build script logged errors
"#]])
.run();
}
#[cargo_test]
fn warnings_emitted_from_path_dep() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
a = { path = "a" }
"#,
)
.file("src/lib.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file(
"a/build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
}
"#,
)
.build();
p.cargo("build")
.with_stderr_data(str![[r#"
[LOCKING] 1 package to latest compatible version
[COMPILING] a v0.5.0 ([ROOT]/foo/a)
[WARNING] a@0.5.0: foo
[WARNING] a@0.5.0: bar
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn warnings_emitted_when_build_script_panics() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
panic!("our crate panicked");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stdout_data("")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[WARNING] foo@0.5.0: foo
[WARNING] foo@0.5.0: bar
[ERROR] failed to run custom build command for `foo v0.5.0 ([ROOT]/foo)`
Caused by:
process didn't exit successfully: `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build` ([EXIT_STATUS]: 101)
--- stdout
cargo::warning=foo
cargo::warning=bar
--- stderr
...
[..]our crate panicked[..]
...
"#]])
.run();
}
#[cargo_test]
fn warnings_emitted_when_dependency_panics() {
Package::new("published", "0.1.0")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
panic!("dependency panicked");
}
"#,
)
.file(
"Cargo.toml",
r#"
[package]
name = "published"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
published = "*"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[UPDATING] `dummy-registry` index
[LOCKING] 1 package to latest compatible version
[DOWNLOADING] crates ...
[DOWNLOADED] published v0.1.0 (registry `dummy-registry`)
[COMPILING] published v0.1.0
[WARNING] published@0.1.0: foo
[WARNING] published@0.1.0: bar
[ERROR] failed to run custom build command for `published v0.1.0`
Caused by:
process didn't exit successfully: `[ROOT]/foo/target/debug/build/published-[HASH]/build-script-build` ([EXIT_STATUS]: 101)
--- stdout
cargo::warning=foo
cargo::warning=bar
--- stderr
...
[..]dependency panicked[..]
...
"#]])
.run();
}
#[cargo_test]
fn log_messages_emitted_when_dependency_logs_errors() {
Package::new("published", "0.1.0")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
println!("cargo::error=foo err");
println!("cargo::error=bar err");
}
"#,
)
.file(
"Cargo.toml",
r#"
[package]
name = "published"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
published = "*"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[UPDATING] `dummy-registry` index
[LOCKING] 1 package to latest compatible version
[DOWNLOADING] crates ...
[DOWNLOADED] published v0.1.0 (registry `dummy-registry`)
[COMPILING] published v0.1.0
[WARNING] published@0.1.0: foo
[WARNING] published@0.1.0: bar
[ERROR] published@0.1.0: foo err
[ERROR] published@0.1.0: bar err
[ERROR] build script logged errors
"#]])
.run();
}
#[cargo_test]
fn warnings_hidden_for_upstream() {
Package::new("bar", "0.1.0")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
}
"#,
)
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
bar = "*"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[UPDATING] `dummy-registry` index
[LOCKING] 1 package to latest compatible version
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 (registry `dummy-registry`)
[COMPILING] bar v0.1.0
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/bar-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name bar [..]`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn warnings_printed_on_vv() {
Package::new("bar", "0.1.0")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::warning=foo");
println!("cargo::warning=bar");
}
"#,
)
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
bar = "*"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build -vv")
.with_stderr_data(str![[r#"
[UPDATING] `dummy-registry` index
[LOCKING] 1 package to latest compatible version
[DOWNLOADING] crates ...
[DOWNLOADED] bar v0.1.0 (registry `dummy-registry`)
[COMPILING] bar v0.1.0
[RUNNING] `[..] rustc --crate-name build_script_build [..]`
[RUNNING] `[..] [ROOT]/foo/target/debug/build/bar-[HASH]/build-script-build`
[WARNING] bar@0.1.0: foo
[WARNING] bar@0.1.0: bar
[RUNNING] `[..] rustc --crate-name bar [..]`
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[..] rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn output_shows_on_vv() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::io::prelude::*;
fn main() {
std::io::stderr().write_all(b"stderr\n").unwrap();
std::io::stdout().write_all(b"stdout\n").unwrap();
}
"#,
)
.build();
p.cargo("build -vv")
.with_stdout_data(str![[r#"
[foo 0.5.0] stdout
"#]])
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `[..] rustc --crate-name build_script_build [..]`
[RUNNING] `[..] [ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[foo 0.5.0] stderr
[RUNNING] `[..] rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn links_with_dots() {
let target = rustc_host();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
links = "a.b"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-link-search=bar")
}
"#,
)
.file(
".cargo/config.toml",
&format!(
r#"
[target.{}.'a.b']
rustc-link-search = ["foo"]
"#,
target
),
)
.build();
p.cargo("build -v")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..] -L foo`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn rustc_and_rustdoc_set_correctly() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
assert_eq!(env::var("RUSTC").unwrap(), "rustc");
assert_eq!(env::var("RUSTDOC").unwrap(), "rustdoc");
}
"#,
)
.build();
p.cargo("bench").run();
}
#[cargo_test]
fn cfg_env_vars_available() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
let fam = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
if cfg!(unix) {
assert_eq!(fam, "unix");
} else {
assert_eq!(fam, "windows");
}
}
"#,
)
.build();
p.cargo("bench").run();
}
#[cargo_test]
fn switch_features_rerun() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
[features]
foo = []
"#,
)
.file(
"src/main.rs",
r#"
fn main() {
println!(include_str!(concat!(env!("OUT_DIR"), "/output")));
}
"#,
)
.file(
"build.rs",
r#"
use std::env;
use std::fs;
use std::path::Path;
fn main() {
let out_dir = env::var_os("OUT_DIR").unwrap();
let output = Path::new(&out_dir).join("output");
if env::var_os("CARGO_FEATURE_FOO").is_some() {
fs::write(output, "foo").unwrap();
} else {
fs::write(output, "bar").unwrap();
}
}
"#,
)
.build();
p.cargo("build -v --features=foo").run();
p.rename_run("foo", "with_foo")
.with_stdout_data(str![[r#"
foo
"#]])
.run();
p.cargo("build -v").run();
p.rename_run("foo", "without_foo")
.with_stdout_data(str![[r#"
bar
"#]])
.run();
p.cargo("build -v --features=foo").run();
p.rename_run("foo", "with_foo2")
.with_stdout_data(str![[r#"
foo
"#]])
.run();
}
#[cargo_test]
fn assume_build_script_when_build_rs_present() {
let p = project()
.file(
"src/main.rs",
r#"
fn main() {
if ! cfg!(foo) {
panic!("the build script was not run");
}
}
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-cfg=foo");
}
"#,
)
.build();
p.cargo("run -v").run();
}
#[cargo_test]
fn if_build_set_to_false_dont_treat_build_rs_as_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = false
"#,
)
.file(
"src/main.rs",
r#"
fn main() {
if cfg!(foo) {
panic!("the build script was run");
}
}
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-cfg=foo");
}
"#,
)
.build();
p.cargo("run -v").run();
}
#[cargo_test]
fn deterministic_rustc_dependency_flags() {
// This bug is non-deterministic hence the large number of dependencies
// in the hopes it will have a much higher chance of triggering it.
Package::new("dep1", "0.1.0")
.file(
"Cargo.toml",
r#"
[package]
name = "dep1"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-flags=-L native=test1");
}
"#,
)
.file("src/lib.rs", "")
.publish();
Package::new("dep2", "0.1.0")
.file(
"Cargo.toml",
r#"
[package]
name = "dep2"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-flags=-L native=test2");
}
"#,
)
.file("src/lib.rs", "")
.publish();
Package::new("dep3", "0.1.0")
.file(
"Cargo.toml",
r#"
[package]
name = "dep3"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-flags=-L native=test3");
}
"#,
)
.file("src/lib.rs", "")
.publish();
Package::new("dep4", "0.1.0")
.file(
"Cargo.toml",
r#"
[package]
name = "dep4"
version = "0.1.0"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-flags=-L native=test4");
}
"#,
)
.file("src/lib.rs", "")
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
authors = []
[dependencies]
dep1 = "*"
dep2 = "*"
dep3 = "*"
dep4 = "*"
"#,
)
.file("src/main.rs", "fn main() {}")
.build();
p.cargo("build -v").with_stderr_data(str![[r#"
...
[RUNNING] `rustc --crate-name foo [..] -L native=test1 -L native=test2 -L native=test3 -L native=test4`
...
"#]]).run();
}
#[cargo_test]
fn links_duplicates_with_cycle() {
// this tests that the links_duplicates are caught at resolver time
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
build = "build.rs"
[dependencies.a]
path = "a"
[dev-dependencies]
b = { path = "b" }
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "")
.file(
"a/Cargo.toml",
r#"
[package]
name = "a"
version = "0.5.0"
edition = "2015"
authors = []
links = "a"
build = "build.rs"
"#,
)
.file("a/src/lib.rs", "")
.file("a/build.rs", "")
.file(
"b/Cargo.toml",
r#"
[package]
name = "b"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
foo = { path = ".." }
"#,
)
.file("b/src/lib.rs", "")
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] failed to select a version for `a`.
... required by package `foo v0.5.0 ([ROOT]/foo)`
versions that meet the requirements `*` are: 0.5.0
the package `a` links to the native library `a`, but it conflicts with a previous package which links to `a` as well:
package `foo v0.5.0 ([ROOT]/foo)`
Only one package in the dependency graph may specify the same links value. This helps ensure that only one copy of a native library is linked in the final binary. Try to adjust your dependencies so that only one package uses the `links = "a"` value. For more information, see https://doc.rust-lang.org/cargo/reference/resolver.html#links.
failed to select a version for `a` which could resolve this conflict
"#]])
.run();
}
#[cargo_test]
fn rename_with_link_search_path() {
_rename_with_link_search_path(
false,
str![[r#"
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/debug/bar[EXE]`
"#]],
);
}
#[cargo_test]
#[cfg_attr(
target_os = "macos",
ignore = "don't have a cdylib cross target on macos"
)]
fn rename_with_link_search_path_cross() {
if cross_compile::disabled() {
return;
}
_rename_with_link_search_path(
true,
str![[r#"
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/[ALT_TARGET]/debug/bar[EXE]`
"#]],
);
}
fn _rename_with_link_search_path(cross: bool, expected: impl IntoData) {
let target_arg = if cross {
format!(" --target={}", cross_compile::alternate())
} else {
"".to_string()
};
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[lib]
crate-type = ["cdylib"]
"#,
)
.file(
"src/lib.rs",
r#"#[no_mangle] pub extern "C" fn cargo_test_foo() {}"#,
);
let p = p.build();
p.cargo(&format!("build{}", target_arg)).run();
let p2 = project()
.at("bar")
.file("Cargo.toml", &basic_manifest("bar", "0.5.0"))
.file(
"build.rs",
r#"
use std::env;
use std::fs;
use std::path::PathBuf;
fn main() {
// Move the `libfoo.so` from the root of our project into the
// build directory. This way Cargo should automatically manage
// `LD_LIBRARY_PATH` and such.
let root = PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").unwrap());
let file = format!("{}foo{}", env::consts::DLL_PREFIX, env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let dst = dst_dir.join(&file);
fs::copy(&src, &dst).unwrap();
// handle windows, like below
drop(fs::copy(root.join("foo.dll.lib"), dst_dir.join("foo.dll.lib")));
println!("cargo::rerun-if-changed=build.rs");
if cfg!(target_env = "msvc") {
println!("cargo::rustc-link-lib=foo.dll");
} else {
println!("cargo::rustc-link-lib=foo");
}
println!("cargo::rustc-link-search=all={}",
dst.parent().unwrap().display());
}
"#,
)
.file(
"src/main.rs",
r#"
extern "C" {
#[link_name = "cargo_test_foo"]
fn foo();
}
fn main() {
unsafe { foo(); }
}
"#,
);
let p2 = p2.build();
// Move the output `libfoo.so` into the directory of `p2`, and then delete
// the `p` project. On macOS, the `libfoo.dylib` artifact references the
// original path in `p` so we want to make sure that it can't find it (hence
// the deletion).
let root = if cross {
p.root()
.join("target")
.join(cross_compile::alternate())
.join("debug")
.join("deps")
} else {
p.root().join("target").join("debug").join("deps")
};
let file = format!("{}foo{}", env::consts::DLL_PREFIX, env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst = p2.root().join(&file);
fs::copy(&src, &dst).unwrap();
// copy the import library for windows, if it exists
drop(fs::copy(
&root.join("foo.dll.lib"),
p2.root().join("foo.dll.lib"),
));
remove_dir_all(p.root()).unwrap();
// Everything should work the first time
p2.cargo(&format!("run{}", target_arg)).run();
// Now rename the root directory and rerun `cargo run`. Not only should we
// not build anything but we also shouldn't crash.
let mut new = p2.root();
new.pop();
new.push("bar2");
// For whatever reason on Windows right after we execute a binary it's very
// unlikely that we're able to successfully delete or rename that binary.
// It's not really clear why this is the case or if it's a bug in Cargo
// holding a handle open too long. In an effort to reduce the flakiness of
// this test though we throw this in a loop
//
// For some more information see #5481 and rust-lang/rust#48775
let mut i = 0;
loop {
let error = match fs::rename(p2.root(), &new) {
Ok(()) => break,
Err(e) => e,
};
i += 1;
if !cfg!(windows) || error.kind() != io::ErrorKind::PermissionDenied || i > 10 {
panic!("failed to rename: {}", error);
}
println!("assuming {} is spurious, waiting to try again", error);
thread::sleep(slow_cpu_multiplier(100));
}
p2.cargo(&format!("run{}", target_arg))
.cwd(&new)
.with_stderr_data(expected)
.run();
}
#[cargo_test]
fn optional_build_script_dep() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
[dependencies]
bar = { path = "bar", optional = true }
[build-dependencies]
bar = { path = "bar", optional = true }
"#,
)
.file(
"build.rs",
r#"
#[cfg(feature = "bar")]
extern crate bar;
fn main() {
#[cfg(feature = "bar")] {
println!("cargo::rustc-env=FOO={}", bar::bar());
return
}
println!("cargo::rustc-env=FOO=0");
}
"#,
)
.file(
"src/main.rs",
r#"
#[cfg(feature = "bar")]
extern crate bar;
fn main() {
println!("{}", env!("FOO"));
}
"#,
)
.file("bar/Cargo.toml", &basic_manifest("bar", "0.5.0"))
.file("bar/src/lib.rs", "pub fn bar() -> u32 { 1 }");
let p = p.build();
p.cargo("run")
.with_stdout_data(str![[r#"
0
"#]])
.run();
p.cargo("run --features bar")
.with_stdout_data(str![[r#"
1
"#]])
.run();
}
#[cargo_test]
fn optional_build_dep_and_required_normal_dep() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
authors = []
[dependencies]
bar = { path = "./bar", optional = true }
[build-dependencies]
bar = { path = "./bar" }
"#,
)
.file("build.rs", "extern crate bar; fn main() { bar::bar(); }")
.file(
"src/main.rs",
r#"
#[cfg(feature = "bar")]
extern crate bar;
fn main() {
#[cfg(feature = "bar")] {
println!("{}", bar::bar());
}
#[cfg(not(feature = "bar"))] {
println!("0");
}
}
"#,
)
.file("bar/Cargo.toml", &basic_manifest("bar", "0.5.0"))
.file("bar/src/lib.rs", "pub fn bar() -> u32 { 1 }");
let p = p.build();
p.cargo("run")
.with_stdout_data(str![[r#"
0
"#]])
.with_stderr_data(str![[r#"
[LOCKING] 1 package to latest compatible version
[COMPILING] bar v0.5.0 ([ROOT]/foo/bar)
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/debug/foo[EXE]`
"#]])
.run();
p.cargo("run --all-features")
.with_stdout_data(str![[r#"
1
"#]])
.with_stderr_data(str![[r#"
[COMPILING] bar v0.5.0 ([ROOT]/foo/bar)
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/debug/foo[EXE]`
"#]])
.run();
}
#[cargo_test]
fn using_rerun_if_changed_does_not_rebuild() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
authors = []
"#,
)
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rerun-if-changed=build.rs");
}
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("build").run();
p.cargo("build")
.with_stderr_data(str![[r#"
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn links_interrupted_can_restart() {
// Test for a `links` dependent build script getting canceled and then
// restarted. Steps:
// 1. Build to establish fingerprints.
// 2. Change something (an env var in this case) that triggers the
// dependent build script to run again. Kill the top-level build script
// while it is running (such as hitting Ctrl-C).
// 3. Run the build again, it should re-run the build script.
let bar = project()
.at("bar")
.file(
"Cargo.toml",
r#"
[package]
name = "bar"
version = "0.5.0"
edition = "2015"
authors = []
links = "foo"
build = "build.rs"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rerun-if-env-changed=SOMEVAR");
}
"#,
)
.build();
let p = project()
.file(
"Cargo.toml",
&format!(
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
[dependencies.bar]
path = '{}'
"#,
bar.root().display()
),
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
use std::env;
fn main() {
println!("cargo::metadata=rebuild-if-changed=build.rs");
if std::path::Path::new("abort").exists() {
panic!("Crash!");
}
}
"#,
)
.build();
p.cargo("build").run();
// Simulate the user hitting Ctrl-C during a build.
p.change_file("abort", "");
// Set SOMEVAR to trigger a rebuild.
p.cargo("build")
.env("SOMEVAR", "1")
.with_stderr_data(str![[r#"
...
Crash!
...
"#]])
.with_status(101)
.run();
fs::remove_file(p.root().join("abort")).unwrap();
// Try again without aborting the script.
// ***This is currently broken, the script does not re-run.
p.cargo("build -v")
.env("SOMEVAR", "1")
.with_stderr_data(str![[r#"
...
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
...
"#]])
.run();
}
#[cargo_test]
fn dev_dep_with_links() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
authors = []
links = "x"
[dev-dependencies]
bar = { path = "./bar" }
"#,
)
.file("build.rs", "fn main() {}")
.file("src/lib.rs", "")
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.1.0"
edition = "2015"
authors = []
links = "y"
[dependencies]
foo = { path = ".." }
"#,
)
.file("bar/build.rs", "fn main() {}")
.file("bar/src/lib.rs", "")
.build();
p.cargo("check --tests").run();
}
#[cargo_test]
fn rerun_if_directory() {
if !symlink_supported() {
return;
}
// rerun-if-changed of a directory should rerun if any file in the directory changes.
let p = project()
.file("Cargo.toml", &basic_manifest("foo", "0.1.0"))
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rerun-if-changed=somedir");
}
"#,
)
.build();
let dirty = |expected| {
p.cargo("check -v").with_stderr_data(expected).run();
};
let fresh = || {
p.cargo("check")
.with_stderr_data(
"\
[FINISHED] [..]
",
)
.run();
};
// Start with a missing directory.
dirty(str![[r#"
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `rustc --crate-name build_script_build[..]`
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]);
// Because the directory doesn't exist, it will trigger a rebuild every time.
// https://github.com/rust-lang/cargo/issues/6003
dirty(str![[r#"
[DIRTY] foo v0.1.0 ([ROOT]/foo): the file `somedir` is missing
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]);
if is_coarse_mtime() {
sleep_ms(1000);
}
// Empty directory.
fs::create_dir(p.root().join("somedir")).unwrap();
dirty(str![[r#"
[DIRTY] foo v0.1.0 ([ROOT]/foo): the file `somedir` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]);
fresh();
if is_coarse_mtime() {
sleep_ms(1000);
}
// Add a file.
p.change_file("somedir/foo", "");
p.change_file("somedir/bar", "");
dirty(str![[r#"
[DIRTY] foo v0.1.0 ([ROOT]/foo): the file `somedir` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]);
fresh();
if is_coarse_mtime() {
sleep_ms(1000);
}
// Add a symlink.
p.symlink("foo", "somedir/link");
dirty(str![[r#"
[DIRTY] foo v0.1.0 ([ROOT]/foo): the file `somedir` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]);
fresh();
if is_coarse_mtime() {
sleep_ms(1000);
}
// Move the symlink.
fs::remove_file(p.root().join("somedir/link")).unwrap();
p.symlink("bar", "somedir/link");
dirty(str![[r#"
[DIRTY] foo v0.1.0 ([ROOT]/foo): the file `somedir` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]);
fresh();
if is_coarse_mtime() {
sleep_ms(1000);
}
// Remove a file.
fs::remove_file(p.root().join("somedir/foo")).unwrap();
dirty(str![[r#"
[DIRTY] foo v0.1.0 ([ROOT]/foo): the file `somedir` has changed ([TIME_DIFF_AFTER_LAST_BUILD])
[COMPILING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `[ROOT]/foo/target/debug/build/foo-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]]);
fresh();
}
#[cargo_test]
fn rerun_if_published_directory() {
// build script of a dependency contains a `rerun-if-changed` pointing to a directory
Package::new("mylib-sys", "1.0.0")
.file("mylib/balrog.c", "")
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
// Changing to mylib/balrog.c will not trigger a rebuild
println!("cargo::rerun-if-changed=mylib");
}
"#,
)
.publish();
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
[dependencies]
mylib-sys = "1.0.0"
"#,
)
.file("src/main.rs", "fn main() {}")
.build();
p.cargo("check").run();
// Delete regitry src to make directories being recreated with the latest timestamp.
cargo_home().join("registry/src").rm_rf();
p.cargo("check --verbose")
.with_stderr_data(str![[r#"
[FRESH] mylib-sys v1.0.0
[FRESH] foo v0.0.1 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
// Upgrade of a package should still trigger a rebuild
Package::new("mylib-sys", "1.0.1")
.file("mylib/balrog.c", "")
.file("mylib/balrog.h", "")
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rerun-if-changed=mylib");
}
"#,
)
.publish();
p.cargo("update").run();
p.cargo("fetch").run();
p.cargo("check -v")
.with_stderr_data(str![[r#"
[COMPILING] mylib-sys v1.0.1
[RUNNING] `rustc --crate-name build_script_build [..]`
[RUNNING] `[ROOT]/foo/target/debug/build/mylib-sys-[HASH]/build-script-build`
[RUNNING] `rustc --crate-name mylib_sys [..]`
[CHECKING] foo v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn test_with_dep_metadata() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
[dependencies]
bar = { path = 'bar' }
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
assert_eq!(std::env::var("DEP_BAR_FOO").unwrap(), "bar");
}
"#,
)
.file(
"bar/Cargo.toml",
r#"
[package]
name = "bar"
version = "0.1.0"
edition = "2015"
links = 'bar'
"#,
)
.file("bar/src/lib.rs", "")
.file(
"bar/build.rs",
r#"
fn main() {
println!("cargo::metadata=foo=bar");
}
"#,
)
.build();
p.cargo("test --lib").run();
}
#[cargo_test]
fn duplicate_script_with_extra_env() {
// Test where a build script is run twice, that emits different rustc-env
// and rustc-cfg values. In this case, one is run for host, the other for
// target.
if !cross_compile::can_run_on_host() {
return;
}
let target = cross_compile::alternate();
let p = project()
.file(
"Cargo.toml",
r#"
[workspace]
members = ["foo", "pm"]
"#,
)
.file(
"foo/Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2015"
[dependencies]
pm = { path = "../pm" }
"#,
)
.file(
"foo/src/lib.rs",
&r#"
//! ```rust
//! #[cfg(not(mycfg="{target}"))]
//! compile_error!{"expected mycfg set"}
//! assert_eq!(env!("CRATE_TARGET"), "{target}");
//! assert_eq!(std::env::var("CRATE_TARGET").unwrap(), "{target}");
//! ```
#[test]
fn check_target() {
#[cfg(not(mycfg="{target}"))]
compile_error!{"expected mycfg set"}
// Compile-time assertion.
assert_eq!(env!("CRATE_TARGET"), "{target}");
// Run-time assertion.
assert_eq!(std::env::var("CRATE_TARGET").unwrap(), "{target}");
}
"#
.replace("{target}", target),
)
.file(
"foo/build.rs",
r#"
fn main() {
println!("cargo::rustc-env=CRATE_TARGET={}", std::env::var("TARGET").unwrap());
println!("cargo::rustc-cfg=mycfg=\"{}\"", std::env::var("TARGET").unwrap());
}
"#,
)
.file(
"pm/Cargo.toml",
r#"
[package]
name = "pm"
version = "0.1.0"
edition = "2015"
[lib]
proc-macro = true
# This is just here to speed things up.
doctest = false
[dev-dependencies]
foo = { path = "../foo" }
"#,
)
.file("pm/src/lib.rs", "")
.build();
p.cargo("test --workspace --target")
.arg(&target)
.with_stdout_data(str![[r#"
...
test check_target ... ok
...
"#]])
.run();
if cargo_test_support::is_nightly() {
p.cargo("test --workspace -Z doctest-xcompile --doc --target")
.arg(&target)
.masquerade_as_nightly_cargo(&["doctest-xcompile"])
.with_stdout_data(str![[r#"
...
test foo/src/lib.rs - (line 2) ... ok
...
"#]])
.run();
}
}
#[cargo_test]
fn wrong_output() {
let p = project()
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::example");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[ERROR] invalid output in build script of `foo v0.0.1 ([ROOT]/foo)`: `cargo::example`
Expected a line with `cargo::KEY=VALUE` with an `=` character, but none was found.
See https://doc.rust-lang.org/cargo/reference/build-scripts.html#outputs-of-the-build-script for more information about build script outputs.
"#]])
.run();
}
#[cargo_test]
fn custom_build_closes_stdin() {
// Ensure stdin is closed to prevent deadlock.
// See https://github.com/rust-lang/cargo/issues/11196
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
build = "build.rs"
"#,
)
.file("src/main.rs", "fn main() {}")
.file(
"build.rs",
r#"fn main() {
let mut line = String::new();
std::io::stdin().read_line(&mut line).unwrap();
}"#,
)
.build();
p.cargo("build").run();
}
#[cargo_test]
fn test_old_syntax() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
"#,
)
.file(
"src/main.rs",
r#"
const FOO: &'static str = env!("FOO");
fn main() {
println!("{}", FOO);
}
"#,
)
.file(
"build.rs",
r#"fn main() {
println!("cargo:rustc-env=FOO=foo");
println!("cargo:foo=foo");
}"#,
)
.build();
p.cargo("build -v").run();
p.cargo("run -v")
.with_stdout_data(str![[r#"
foo
"#]])
.run();
}
#[cargo_test]
fn test_invalid_old_syntax() {
// Unexpected metadata value.
let p = project()
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo:foo");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[ERROR] invalid output in build script of `foo v0.0.1 ([ROOT]/foo)`: `cargo:foo`
Expected a line with `cargo:KEY=VALUE` with an `=` character, but none was found.
See https://doc.rust-lang.org/cargo/reference/build-scripts.html#outputs-of-the-build-script for more information about build script outputs.
"#]])
.run();
}
#[cargo_test]
fn test_invalid_new_syntax() {
// Unexpected metadata value.
let p = project()
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::metadata=foo");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[ERROR] invalid output in build script of `foo v0.0.1 ([ROOT]/foo)`: `cargo::metadata=foo`
Expected a line with `cargo::metadata=KEY=VALUE` with an `=` character, but none was found.
See https://doc.rust-lang.org/cargo/reference/build-scripts.html#outputs-of-the-build-script for more information about build script outputs.
"#]])
.run();
// `cargo::` can not be used with the unknown key.
let p = project()
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::foo=bar");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[ERROR] invalid output in build script of `foo v0.0.1 ([ROOT]/foo)`: `cargo::foo=bar`
Unknown key: `foo`.
See https://doc.rust-lang.org/cargo/reference/build-scripts.html#outputs-of-the-build-script for more information about build script outputs.
"#]])
.run();
}
#[cargo_test]
fn test_new_syntax_with_old_msrv() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
rust-version = "1.60.0"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::metadata=foo=bar");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[ERROR] the `cargo::` syntax for build script output instructions was added in Rust 1.77.0, but the minimum supported Rust version of `foo v0.5.0 ([ROOT]/foo)` is 1.60.0.
Switch to the old `cargo:foo=bar` syntax instead of `cargo::metadata=foo=bar` (note the single colon).
See https://doc.rust-lang.org/cargo/reference/build-scripts.html#outputs-of-the-build-script for more information about build script outputs.
"#]])
.run();
}
#[cargo_test]
fn test_new_syntax_with_old_msrv_and_reserved_prefix() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
rust-version = "1.60.0"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::rustc-check-cfg=cfg(foo)");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[ERROR] the `cargo::` syntax for build script output instructions was added in Rust 1.77.0, but the minimum supported Rust version of `foo v0.5.0 ([ROOT]/foo)` is 1.60.0.
Switch to the old `cargo:rustc-check-cfg=cfg(foo)` syntax (note the single colon).
See https://doc.rust-lang.org/cargo/reference/build-scripts.html#outputs-of-the-build-script for more information about build script outputs.
"#]])
.run();
}
#[cargo_test]
fn test_new_syntax_with_old_msrv_and_unknown_prefix() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.5.0"
edition = "2015"
authors = []
build = "build.rs"
rust-version = "1.60.0"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::foo=bar");
}
"#,
)
.build();
p.cargo("build")
.with_status(101)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.5.0 ([ROOT]/foo)
[ERROR] the `cargo::` syntax for build script output instructions was added in Rust 1.77.0, but the minimum supported Rust version of `foo v0.5.0 ([ROOT]/foo)` is 1.60.0.
See https://doc.rust-lang.org/cargo/reference/build-scripts.html#outputs-of-the-build-script for more information about build script outputs.
"#]])
.run();
}
#[cargo_test]
fn test_new_syntax_with_compatible_partial_msrv() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
edition = "2015"
build = "build.rs"
rust-version = "1.77"
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
println!("cargo::metadata=foo=bar");
}
"#,
)
.build();
p.cargo("check")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn test_old_syntax_with_old_msrv() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
version = "0.0.1"
edition = "2015"
authors = []
build = "build.rs"
rust-version = "1.60.0"
"#,
)
.file(
"src/main.rs",
r#"
const FOO: &'static str = env!("FOO");
fn main() {
println!("{}", FOO);
}
"#,
)
.file(
"build.rs",
r#"fn main() {
println!("cargo:rustc-env=FOO=foo");
println!("cargo:foo=foo");
}"#,
)
.build();
p.cargo("build -v").run();
p.cargo("run -v")
.with_stdout_data(str![[r#"
foo
"#]])
.run();
}
#[cargo_test]
fn build_script_rerun_when_target_rustflags_change() {
let target = rustc_host();
let p = project()
.file(
"src/main.rs",
r#"
fn main() {
#[cfg(enable)]
println!("hello");
}
"#,
)
.file(
"build.rs",
r#"
use std::env;
fn main() {
println!("cargo::rustc-check-cfg=cfg(enable)");
if let Ok(rustflags) = env::var("CARGO_ENCODED_RUSTFLAGS") {
if !rustflags.is_empty() {
println!("cargo::rustc-cfg=enable");
}
}
}
"#,
)
.build();
p.cargo("run --target")
.arg(&target)
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/[HOST_TARGET]/debug/foo[EXE]`
"#]])
.run();
p.cargo("run --target")
.arg(&target)
.env("RUSTFLAGS", "-C opt-level=3")
.with_stderr_data(str![[r#"
[COMPILING] foo v0.0.1 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[RUNNING] `target/[HOST_TARGET]/debug/foo[EXE]`
"#]])
.with_stdout_data(str![[r#"
hello
"#]])
.run();
}
#[cargo_test]
fn links_overrides_with_target_applies_to_host() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "mylib-sys"
edition = "2021"
version = "0.0.1"
authors = []
links = "mylib"
"#,
)
.file("src/lib.rs", "")
.file("build.rs", "bad file")
.build();
p.cargo("build -v")
.masquerade_as_nightly_cargo(&["target-applies-to-host"])
.args(&[
"-Ztarget-applies-to-host",
"--config",
"target-applies-to-host=false",
])
.args(&[
"--config",
&format!(r#"target.{}.mylib.rustc-link-search=["foo"]"#, rustc_host()),
])
.with_stderr_data(str![[r#"
[COMPILING] mylib-sys v0.0.1 ([ROOT]/foo)
[RUNNING] `rustc --crate-name mylib_sys [..] -L foo`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn directory_with_leading_underscore() {
let p: cargo_test_support::Project = git::new("foo", |p| {
p.no_manifest()
.file(
"_foo/foo/Cargo.toml",
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "2021"
build = "build.rs"
"#,
)
.file("_foo/foo/src/main.rs", "fn main() {}")
.file("_foo/foo/build.rs", "fn main() { }")
});
p.cargo("build --manifest-path=_foo/foo/Cargo.toml -v")
.with_status(0)
.run();
}
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