Merge pull request #112 from acicco/excluded_filetypes_option

feat: added excluded_filetypes option to avoid adding unwanted filety…

README.md

@@ -146,6 +146,7 @@ require("harpoon").setup({
         save_on_toggle = false,
         save_on_change = true,
         enter_on_sendcmd = false,
+        excluded_filetypes = { "harpoon" }
     },
     ... your other configs ...
 })
@@ -159,6 +160,7 @@ require("harpoon").setup({
   what I have found).
 * `enter_on_sendcmd` will set harpoon to run the command immediately as it's
     passed to the terminal when calling `sendCommand`.
+* `excluded_filetypes` filetypes that you want to prevent from adding to the harpoon list menu.
 
 #### Preconfigured Terminal Commands
 These are project specific commands that you wish to execute on the regular.

lua/harpoon/init.lua

@@ -157,6 +157,7 @@ M.setup = function(config)
             ["save_on_toggle"] = false,
             ["save_on_change"] = true,
             ["enter_on_sendcmd"] = false,
+            ["excluded_filetypes"] = { "harpoon" },
         },
     }, expand_dir(
         c_config

lua/harpoon/mark.lua

@@ -115,6 +115,27 @@ local function validate_buf_name(buf_name)
     end
 end
 
+local function filter_filetype()
+    local current_filetype = vim.bo.filetype
+    local excluded_filetypes = harpoon.get_global_settings().excluded_filetypes
+
+    if current_filetype == "harpoon" then
+        log.error("filter_filetype(): You can't add harpoon to the harpoon")
+        error("You can't add harpoon to the harpoon")
+        return
+    end
+
+    if vim.tbl_contains(excluded_filetypes, current_filetype) then
+        log.error(
+            'filter_filetype(): This filetype cannot be added or is included in the "excluded_filetypes" option'
+        )
+        error(
+            'This filetype cannot be added or is included in the "excluded_filetypes" option'
+        )
+        return
+    end
+end
+
 M.get_index_of = function(item)
     log.trace("get_index_of():", item)
     if item == nil then
@@ -180,6 +201,7 @@ M.valid_index = function(idx)
 end
 
 M.add_file = function(file_name_or_buf_id)
+    filter_filetype()
     local buf_name = get_buf_name(file_name_or_buf_id)
     log.trace("add_file():", buf_name)
 
@@ -290,6 +312,7 @@ M.get_length = function()
 end
 
 M.set_current_at = function(idx)
+    filter_filetype()
     local buf_name = get_buf_name()
     log.trace("set_current_at(): Setting id", idx, buf_name)
     local config = harpoon.get_mark_config()