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auto merge of #1021 : alexcrichton/cargo/issue-986, r=brson

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If manual modifications have been made or if cargo/rustc died for some sort of
error, then we don't consider a target as being fresh. If any of the files
output by a target don't end up existing in the target directory (even if the
fingerprint says they do), then we consider the target not fresh.

cc #986
This commit is contained in:
bors 2014-12-09 17:43:59 +00:00
commit 4e92eb2dd8
2 changed files with 22 additions and 2 deletions
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7
src/cargo/ops/cargo_rustc/fingerprint.rs
View File

@ -63,8 +63,8 @@ pub fn prepare_target(cx: &mut Context, pkg: &Package, target: &Target,
// First bit of the freshness calculation, whether the dep-info file
// indicates that the target is fresh.
let dep_info = dep_info_loc(cx, pkg, target, kind);
let are_files_fresh = use_pkg ||
try!(calculate_target_fresh(pkg, &dep_info));
let mut are_files_fresh = use_pkg ||
try!(calculate_target_fresh(pkg, &dep_info));
// Second bit of the freshness calculation, whether rustc itself, the
// target are fresh, and the enabled set of features are all fresh.
@ -87,6 +87,9 @@ pub fn prepare_target(cx: &mut Context, pkg: &Package, target: &Target,
for filename in try!(cx.target_filenames(target)).iter() {
let dst = root.join(filename);
cx.layout(pkg, kind).proxy().whitelist(&dst);
if are_files_fresh && !dst.exists() {
are_files_fresh = false;
}
if target.get_profile().is_test() {
cx.compilation.tests.push((target.get_name().into_string(), dst));

17
tests/test_cargo_compile.rs
View File

@ -1496,3 +1496,20 @@ test!(example_bin_same_name {
assert_that(&p.bin("foo"), existing_file());
assert_that(&p.bin("examples/foo"), existing_file());
})
test!(compile_then_delete {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
"#)
.file("src/main.rs", "fn main() {}");
assert_that(p.cargo_process("run"), execs().with_status(0));
assert_that(&p.bin("foo"), existing_file());
fs::unlink(&p.bin("foo")).unwrap();
assert_that(p.process(cargo_dir().join("cargo")).arg("run"),
execs().with_status(0));
})