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author | Kevin Cox <kevincox@kevincox.ca> | 2020-12-27 08:04:16 -0500 |
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committer | GitHub <noreply@github.com> | 2020-12-27 08:04:16 -0500 |
commit | 11e522cb6ed4bcd0ad59006bfa52f3b79e3017c3 (patch) | |
tree | 58606e25a704a8382c3316812d81c91f5f6dd87a /pkgs/build-support/nix-gitignore | |
parent | b5bf9da14d28952b2b88a4c51d556014e2d69397 (diff) |
Revert "nix-gitignore: Optimise performance"
Diffstat (limited to 'pkgs/build-support/nix-gitignore')
-rw-r--r-- | pkgs/build-support/nix-gitignore/default.nix | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/pkgs/build-support/nix-gitignore/default.nix b/pkgs/build-support/nix-gitignore/default.nix index abfe67ea43045..5d7b945bf1b16 100644 --- a/pkgs/build-support/nix-gitignore/default.nix +++ b/pkgs/build-support/nix-gitignore/default.nix @@ -20,13 +20,14 @@ let in rec { # [["good/relative/source/file" true] ["bad.tmpfile" false]] -> root -> path filterPattern = patterns: root: - let - filters = map (pair: relPath: if match (head pair) relPath == null then true else last pair) patterns; - in - name: _type: - let - relPath = lib.removePrefix ((toString root) + "/") name; - in foldl' (acc: f: if acc == true then f relPath else acc) true filters; + (name: _type: + let + relPath = lib.removePrefix ((toString root) + "/") name; + matches = pair: (match (head pair) relPath) != null; + matched = map (pair: [(matches pair) (last pair)]) patterns; + in + last (last ([[true true]] ++ (filter head matched))) + ); # string -> [[regex bool]] gitignoreToPatterns = gitignore: @@ -90,9 +91,7 @@ in rec { (filter (l: !isList l && !isComment l) (split "\n" gitignore)); - gitignoreFilter = ign: let - patterns = gitignoreToPatterns ign; - in root: filterPattern patterns root; + gitignoreFilter = ign: root: filterPattern (gitignoreToPatterns ign) root; # string|[string|file] (→ [string|file] → [string]) -> string gitignoreCompileIgnore = file_str_patterns: root: @@ -101,10 +100,9 @@ in rec { str_patterns = map (onPath readFile) (lib.toList file_str_patterns); in concatStringsSep "\n" str_patterns; - gitignoreFilterPure = filter: patterns: root: let - compiledFilter = gitignoreCompileIgnore patterns root; - filterFn = gitignoreFilter compiledFilter; - in name: type: filterFn root name type && filter name type; + gitignoreFilterPure = filter: patterns: root: name: type: + gitignoreFilter (gitignoreCompileIgnore patterns root) root name type + && filter name type; # This is a very hacky way of programming this! # A better way would be to reuse existing filtering by making multiple gitignore functions per each root. |