algmyr.se
Common library code for other vc*.nvim projects.
Add code for gitignore support.
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+87
lua/vclib/ignore.lua
+87
lua/vclib/ignore.lua
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local M = {}
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local run = require "vclib.run"
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---@diagnostic disable-next-line: undefined-field
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local stat = vim.uv.fs_stat
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-- This is probably way overkill.
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local vcs_root_cache = {}
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---@param path string
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---@return {type: string, root: string}|nil
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local function _get_vcs_root(path)
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if vcs_root_cache[path] then
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return vcs_root_cache[path]
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end
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if stat(path .. "/.git") then
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vcs_root_cache[path] = {
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type = "git",
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root = path,
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}
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return vcs_root_cache[path]
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end
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if stat(path .. "/.jj") then
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vcs_root_cache[path] = {
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type = "jj",
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root = path,
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}
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return vcs_root_cache[path]
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end
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-- Could add more, but this is a good start.
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if vim.fs.dirname(path) == path then
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-- Reached the root directory without finding a VCS directory.
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return nil
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end
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-- Recursively check the parent directory.
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return _get_vcs_root(vim.fs.dirname(path))
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end
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local is_ignored_cache = {}
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-- Check if file should be ignored as per gitignore rules.
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function M.is_ignored(path)
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if is_ignored_cache[path] ~= nil then
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return is_ignored_cache[path]
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end
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local absolute_path = vim.fs.normalize(vim.fs.abspath(path))
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local vcs_root = _get_vcs_root(vim.fs.dirname(absolute_path))
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if vcs_root then
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local gitdir
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if vcs_root.type == "git" then
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gitdir = vcs_root.root .. "/.git"
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elseif vcs_root.type == "jj" then
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-- I should really read `git_target`, but let's keep this simple...
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gitdir = vcs_root.root .. "/.jj/repo/store/git"
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else
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error("Unknown VCS type: " .. vim.inspect(vcs_root.type))
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end
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local out = run
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.run_with_timeout({
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"git",
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"--git-dir",
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gitdir,
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"--work-tree",
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vcs_root.root,
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"check-ignore",
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"--no-index",
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absolute_path,
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}, {})
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:wait()
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if out.code == 0 then
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is_ignored_cache[path] = true
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return true
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end
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end
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return false
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end
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function M.clear_ignored_cache()
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is_ignored_cache = {}
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end
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return M