forked from mirrors/nixpkgs
50 lines
2.2 KiB
Markdown
50 lines
2.2 KiB
Markdown
# pkgs.nix-gitignore {#sec-pkgs-nix-gitignore}
|
|
|
|
`pkgs.nix-gitignore` is a function that acts similarly to `builtins.filterSource` but also allows filtering with the help of the gitignore format.
|
|
|
|
## Usage {#sec-pkgs-nix-gitignore-usage}
|
|
|
|
`pkgs.nix-gitignore` exports a number of functions, but you'll most likely need either `gitignoreSource` or `gitignoreSourcePure`. As their first argument, they both accept either 1. a file with gitignore lines or 2. a string with gitignore lines, or 3. a list of either of the two. They will be concatenated into a single big string.
|
|
|
|
```nix
|
|
{ pkgs ? import <nixpkgs> {} }:
|
|
|
|
nix-gitignore.gitignoreSource [] ./source
|
|
# Simplest version
|
|
|
|
nix-gitignore.gitignoreSource "supplemental-ignores\n" ./source
|
|
# This one reads the ./source/.gitignore and concats the auxiliary ignores
|
|
|
|
nix-gitignore.gitignoreSourcePure "ignore-this\nignore-that\n" ./source
|
|
# Use this string as gitignore, don't read ./source/.gitignore.
|
|
|
|
nix-gitignore.gitignoreSourcePure ["ignore-this\nignore-that\n", ~/.gitignore] ./source
|
|
# It also accepts a list (of strings and paths) that will be concatenated
|
|
# once the paths are turned to strings via readFile.
|
|
```
|
|
|
|
These functions are derived from the `Filter` functions by setting the first filter argument to `(_: _: true)`:
|
|
|
|
```nix
|
|
gitignoreSourcePure = gitignoreFilterSourcePure (_: _: true);
|
|
gitignoreSource = gitignoreFilterSource (_: _: true);
|
|
```
|
|
|
|
Those filter functions accept the same arguments the `builtins.filterSource` function would pass to its filters, thus `fn: gitignoreFilterSourcePure fn ""` should be extensionally equivalent to `filterSource`. The file is blacklisted if it's blacklisted by either your filter or the gitignoreFilter.
|
|
|
|
If you want to make your own filter from scratch, you may use
|
|
|
|
```nix
|
|
gitignoreFilter = ign: root: filterPattern (gitignoreToPatterns ign) root;
|
|
```
|
|
|
|
## gitignore files in subdirectories {#sec-pkgs-nix-gitignore-usage-recursive}
|
|
|
|
If you wish to use a filter that would search for .gitignore files in subdirectories, just like git does by default, use this function:
|
|
|
|
```nix
|
|
gitignoreFilterRecursiveSource = filter: patterns: root:
|
|
# OR
|
|
gitignoreRecursiveSource = gitignoreFilterSourcePure (_: _: true);
|
|
```
|