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hooks.nix
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{ config, lib, pkgs, ... }:
let
inherit (config) tools settings;
inherit (lib) mkOption types;
cargoManifestPathArg =
lib.optionalString
(settings.rust.cargoManifestPath != null)
"--manifest-path ${lib.escapeShellArg settings.rust.cargoManifestPath}";
mkCmdArgs = predActionList:
lib.concatStringsSep
" "
(builtins.foldl'
(acc: entry:
acc ++ lib.optional (builtins.elemAt entry 0) (builtins.elemAt entry 1))
[ ]
predActionList);
in
{
options.settings =
{
ansible-lint =
{
configPath = mkOption {
type = types.str;
description = "path to the configuration YAML file";
# an empty string translates to use default configuration of the
# underlying ansible-lint binary
default = "";
};
subdir = mkOption {
type = types.str;
description = "path to Ansible subdir";
default = "";
};
};
hpack =
{
silent =
mkOption {
type = types.bool;
description = lib.mdDoc "Whether generation should be silent.";
default = false;
};
};
ormolu =
{
defaultExtensions =
mkOption {
type = types.listOf types.str;
description = lib.mdDoc "Haskell language extensions to enable.";
default = [ ];
};
cabalDefaultExtensions =
mkOption {
type = types.bool;
description = lib.mdDoc "Use `default-extensions` from `.cabal` files.";
default = false;
};
};
alejandra =
{
exclude =
mkOption {
type = types.listOf types.str;
description = lib.mdDoc "Files or directories to exclude from formatting.";
default = [ ];
example = [ "flake.nix" "./templates" ];
};
};
deadnix =
{
edit =
mkOption {
type = types.bool;
description = lib.mdDoc "Remove unused code and write to source file.";
default = false;
};
noLambdaArg =
mkOption {
type = types.bool;
description = lib.mdDoc "Don't check lambda parameter arguments.";
default = false;
};
noLambdaPatternNames =
mkOption {
type = types.bool;
description = lib.mdDoc "Don't check lambda pattern names (don't break nixpkgs `callPackage`).";
default = false;
};
noUnderscore =
mkOption {
type = types.bool;
description = lib.mdDoc "Don't check any bindings that start with a `_`.";
default = false;
};
quiet =
mkOption {
type = types.bool;
description = lib.mdDoc "Don't print a dead code report.";
default = false;
};
};
statix =
{
format =
mkOption {
type = types.enum [ "stderr" "errfmt" "json" ];
description = lib.mdDoc "Error Output format.";
default = "errfmt";
};
ignore =
mkOption {
type = types.listOf types.str;
description = lib.mdDoc "Globs of file patterns to skip.";
default = [ ];
example = [ "flake.nix" "_*" ];
};
};
markdownlint = {
config =
mkOption {
type = types.attrs;
description = lib.mdDoc
"See https://github.com/DavidAnson/markdownlint/blob/main/schema/.markdownlint.jsonc";
default = { };
};
};
mypy =
{
binPath =
mkOption {
type = types.str;
description = lib.mdDoc "Mypy binary path. Should be used to specify the mypy executable in an environment containing your typing stubs.";
default = "${pkgs.mypy}/bin/mypy";
defaultText = lib.literalExpression ''
"''${pkgs.mypy}/bin/mypy"
'';
};
};
nixfmt =
{
width =
mkOption {
type = types.nullOr types.int;
description = lib.mdDoc "Line width.";
default = null;
};
};
prettier =
{
binPath =
mkOption {
type = types.path;
description = lib.mdDoc
"`prettier` binary path. E.g. if you want to use the `prettier` in `node_modules`, use `./node_modules/.bin/prettier`.";
default = "${tools.prettier}/bin/prettier";
defaultText = lib.literalExpression ''
"''${tools.prettier}/bin/prettier"
'';
};
write =
mkOption {
type = types.bool;
description = lib.mdDoc "Whether to edit files inplace.";
default = true;
};
output =
mkOption {
description = lib.mdDoc "Output format.";
type = types.nullOr (types.enum [ "check" "list-different" ]);
default = "list-different";
};
};
eslint =
{
binPath =
mkOption {
type = types.path;
description = lib.mdDoc
"`eslint` binary path. E.g. if you want to use the `eslint` in `node_modules`, use `./node_modules/.bin/eslint`.";
default = "${tools.eslint}/bin/eslint";
defaultText = lib.literalExpression "\${tools.eslint}/bin/eslint";
};
extensions =
mkOption {
type = types.str;
description = lib.mdDoc
"The pattern of files to run on, see [https://pre-commit.com/#hooks-files](https://pre-commit.com/#hooks-files).";
default = "\\.js$";
};
};
typos =
{
write =
mkOption {
type = types.bool;
description = lib.mdDoc "Whether to write fixes out.";
default = false;
};
diff =
mkOption {
type = types.bool;
description = lib.mdDoc "Wheter to print a diff of what would change.";
default = false;
};
format =
mkOption {
type = types.enum [ "silent" "brief" "long" "json" ];
description = lib.mdDoc "Output format.";
default = "long";
};
};
revive =
{
configPath =
mkOption {
type = types.str;
description = lib.mdDoc "Path to the configuration TOML file.";
# an empty string translates to use default configuration of the
# underlying revive binary
default = "";
};
};
phpcs =
{
binPath =
mkOption {
type = types.str;
description = lib.mdDoc "PHP_CodeSniffer binary path.";
default = "${pkgs.php80Packages.phpcs}/bin/phpcs";
defaultText = lib.literalExpression ''
"''${pkgs.php80Packages.phpcs}/bin/phpcs"
'';
};
};
phpcbf =
{
binPath =
mkOption {
type = types.str;
description = lib.mdDoc "PHP_CodeSniffer binary path.";
default = "${pkgs.php80Packages.phpcbf}/bin/phpcbf";
defaultText = lib.literalExpression ''
"''${pkgs.php80Packages.phpcbf}/bin/phpcbf"
'';
};
};
php-cs-fixer =
{
binPath =
mkOption {
type = types.str;
description = lib.mdDoc "PHP-CS-Fixer binary path.";
default = "${pkgs.php81Packages.php-cs-fixer}/bin/php-cs-fixer";
defaultText = lib.literalExpression ''
"''${pkgs.php81Packages.php-cs-fixer}/bin/php-cs-fixer"
'';
};
};
pylint =
{
binPath =
mkOption {
type = types.str;
description = lib.mdDoc "Pylint binary path. Should be used to specify Pylint binary from your Nix-managed Python environment.";
default = "${pkgs.python39Packages.pylint}/bin/pylint";
defaultText = lib.literalExpression ''
"''${pkgs.python39Packages.pylint}/bin/pylint"
'';
};
reports =
mkOption {
type = types.bool;
description = lib.mdDoc "Whether to display a full report.";
default = false;
};
score =
mkOption {
type = types.bool;
description = lib.mdDoc "Whether to activate the evaluation score.";
default = true;
};
};
flake8 =
{
binPath =
mkOption {
type = types.str;
description = lib.mdDoc "flake8 binary path. Should be used to specify flake8 binary from your Nix-managed Python environment.";
default = "${pkgs.python39Packages.flake8}/bin/flake8";
defaultText = lib.literalExpression ''
"''${pkgs.python39Packages.flake8}/bin/flake8"
'';
};
format =
mkOption {
type = types.str;
description = lib.mdDoc "Output format.";
default = "default";
};
};
autoflake =
{
binPath =
mkOption {
type = types.str;
description = lib.mdDoc "Path to autoflake binary.";
default = "${pkgs.autoflake}/bin/autoflake";
defaultText = lib.literalExpression ''
"''${pkgs.autoflake}/bin/autoflake"
'';
};
flags =
mkOption {
type = types.str;
description = lib.mdDoc "Flags passed to autoflake.";
default = "--in-place --expand-star-imports --remove-duplicate-keys --remove-unused-variables";
};
};
rust =
{
cargoManifestPath = mkOption {
type = types.nullOr types.str;
description = lib.mdDoc "Path to Cargo.toml";
default = null;
};
};
yamllint =
{
relaxed = mkOption {
type = types.bool;
description = lib.mdDoc "Use the relaxed configuration";
default = false;
};
configPath = mkOption {
type = types.str;
description = "path to the configuration YAML file";
# an empty string translates to use default configuration of the
# underlying yamllint binary
default = "";
};
};
clippy =
{
denyWarnings = mkOption {
type = types.bool;
description = lib.mdDoc "Fail when warnings are present";
default = false;
};
offline = mkOption {
type = types.bool;
description = lib.mdDoc "Run clippy offline";
default = true;
};
};
treefmt =
{
package = mkOption {
type = types.package;
description = lib.mdDoc
''
The `treefmt` package to use.
Should include all the formatters configured by treefmt.
For example:
```nix
pkgs.writeShellApplication {
name = "treefmt";
runtimeInputs = [
pkgs.treefmt
pkgs.nixpkgs-fmt
pkgs.black
];
text =
'''
exec treefmt "$@"
''';
}
```
'';
};
};
};
config.hooks =
{
actionlint =
{
name = "actionlint";
description = "Static checker for GitHub Actions workflow files.";
files = "^.github/workflows/";
types = [ "yaml" ];
entry = "${tools.actionlint}/bin/actionlint";
};
ansible-lint =
{
name = "ansible-lint";
description =
"Ansible linter.";
entry =
let
cmdArgs =
mkCmdArgs [
[ (settings.ansible-lint.configPath != "") "-c ${settings.ansible-lint.configPath}" ]
];
in
"${tools.ansible-lint}/bin/ansible-lint ${cmdArgs}";
files = if settings.ansible-lint.subdir != "" then "${settings.ansible-lint.subdir}/" else "";
};
black =
{
name = "black";
description = "The uncompromising Python code formatter.";
entry = "${pkgs.python3Packages.black}/bin/black";
types = [ "file" "python" ];
};
ruff =
{
name = "ruff";
description = " An extremely fast Python linter, written in Rust.";
entry = "${pkgs.ruff}/bin/ruff --fix";
types = [ "python" ];
};
cabal2nix =
{
name = "cabal2nix";
description = "Run `cabal2nix` on all `*.cabal` files to generate corresponding `default.nix` files.";
files = "\\.cabal$";
entry = "${tools.cabal2nix-dir}/bin/cabal2nix-dir";
};
clang-format =
{
name = "clang-format";
description = "Format your code using `clang-format`.";
entry = "${tools.clang-tools}/bin/clang-format -style=file -i";
# Source:
# https://github.com/pre-commit/mirrors-clang-format/blob/46516e8f532c8f2d55e801c34a740ebb8036365c/.pre-commit-hooks.yaml
types_or = [
"c"
"c++"
"c#"
"cuda"
"java"
"javascript"
"json"
"objective-c"
"proto"
];
};
dhall-format = {
name = "dhall-format";
description = "Dhall code formatter.";
entry = "${tools.dhall}/bin/dhall format";
files = "\\.dhall$";
};
dune-opam-sync = {
name = "dune/opam sync";
description = "Check that Dune-generated OPAM files are in sync.";
entry = "${tools.dune-build-opam-files}/bin/dune-build-opam-files";
files = "(\\.opam$)|((^|/)dune-project$)";
## We don't pass filenames because they can only be misleading. Indeed,
## we need to re-run `dune build` for every `*.opam` file, but also when
## the `dune-project` file has changed.
pass_filenames = false;
};
gptcommit = {
name = "gptcommit";
description = "Generate a commit message using GPT3.";
entry =
let
script = pkgs.writeShellScript "precommit-gptcomit" ''
${tools.gptcommit}/bin/gptcommit prepare-commit-msg --commit-source \
"$PRE_COMMIT_COMMIT_MSG_SOURCE" --commit-msg-file "$1"
'';
in
lib.throwIf (tools.gptcommit == null) "The version of Nixpkgs used by pre-commit-hooks.nix does not have the `gptcommit` package. Please use a more recent version of Nixpkgs."
toString
script;
stages = [ "prepare-commit-msg" ];
};
hlint =
{
name = "hlint";
description =
"HLint gives suggestions on how to improve your source code.";
entry = "${tools.hlint}/bin/hlint";
files = "\\.l?hs(-boot)?$";
};
hpack =
{
name = "hpack";
description =
"`hpack` converts package definitions in the hpack format (`package.yaml`) to Cabal files.";
entry = "${tools.hpack-dir}/bin/hpack-dir --${if settings.hpack.silent then "silent" else "verbose"}";
files = "(\\.l?hs(-boot)?$)|(\\.cabal$)|((^|/)package\\.yaml$)";
# We don't pass filenames because they can only be misleading.
# Indeed, we need to rerun `hpack` in every directory:
# 1. In which there is a *.cabal file, or
# 2. Below which there are haskell files, or
# 3. In which there is a package.yaml that references haskell files
# that have been changed at arbitrary locations specified in that
# file.
# In other words: We have no choice but to always run `hpack` on every `package.yaml` directory.
pass_filenames = false;
};
isort =
{
name = "isort";
description = "A Python utility / library to sort imports.";
entry = "${pkgs.python3Packages.isort}/bin/isort";
types = [ "file" "python" ];
};
latexindent =
{
name = "latexindent";
description = "Perl script to add indentation to LaTeX files.";
types = [ "file" "tex" ];
entry = "${tools.latexindent}/bin/latexindent --local --silent --overwriteIfDifferent";
};
luacheck =
{
name = "luacheck";
description = "A tool for linting and static analysis of Lua code.";
types = [ "file" "lua" ];
entry = "${tools.luacheck}/bin/luacheck";
};
ocp-indent =
{
name = "ocp-indent";
description = "A tool to indent OCaml code.";
entry = "${tools.ocp-indent}/bin/ocp-indent --inplace";
files = "\\.mli?$";
};
opam-lint =
{
name = "opam lint";
description = "OCaml package manager configuration checker.";
entry = "${tools.opam}/bin/opam lint";
files = "\\.opam$";
};
ormolu =
{
name = "ormolu";
description = "Haskell code prettifier.";
entry =
let
extensions =
lib.escapeShellArgs (lib.concatMap (ext: [ "--ghc-opt" "-X${ext}" ]) settings.ormolu.defaultExtensions);
cabalExtensions =
if settings.ormolu.cabalDefaultExtensions then "--cabal-default-extensions" else "";
in
"${tools.ormolu}/bin/ormolu --mode inplace ${extensions} ${cabalExtensions}";
files = "\\.l?hs(-boot)?$";
};
fourmolu =
{
name = "fourmolu";
description = "Haskell code prettifier.";
entry =
"${tools.fourmolu}/bin/fourmolu --mode inplace ${
lib.escapeShellArgs (lib.concatMap (ext: [ "--ghc-opt" "-X${ext}" ]) settings.ormolu.defaultExtensions)
}";
files = "\\.l?hs(-boot)?$";
};
hindent =
{
name = "hindent";
description = "Haskell code prettifier.";
entry = "${tools.hindent}/bin/hindent";
files = "\\.l?hs(-boot)?$";
};
cabal-fmt =
{
name = "cabal-fmt";
description = "Format Cabal files";
entry = "${tools.cabal-fmt}/bin/cabal-fmt --inplace";
files = "\\.cabal$";
};
chktex =
{
name = "chktex";
description = "LaTeX semantic checker";
types = [ "file" "tex" ];
entry = "${tools.chktex}/bin/chktex";
};
stylish-haskell =
{
name = "stylish-haskell";
description = "A simple Haskell code prettifier";
entry = "${tools.stylish-haskell}/bin/stylish-haskell --inplace";
files = "\\.l?hs(-boot)?$";
};
alejandra =
{
name = "alejandra";
description = "The Uncompromising Nix Code Formatter.";
entry = with settings.alejandra;
"${tools.alejandra}/bin/alejandra ${if (exclude != [ ]) then "-e ${lib.escapeShellArgs (lib.unique exclude)}" else ""}";
files = "\\.nix$";
};
deadnix =
{
name = "deadnix";
description = "Scan Nix files for dead code (unused variable bindings).";
entry =
let
toArg = string: "--" + (lib.concatMapStringsSep "-" lib.toLower (lib.filter (x: x != "") (lib.flatten (builtins.split "([[:upper:]]+[[:lower:]]+)" string))));
args = lib.concatMapStringsSep " " toArg (lib.filter (attr: settings.deadnix."${attr}") (lib.attrNames settings.deadnix));
in
"${tools.deadnix}/bin/deadnix ${args} --fail --";
files = "\\.nix$";
};
mdsh =
let
script = pkgs.writeShellScript "precommit-mdsh" ''
for file in $(echo "$@"); do
${tools.mdsh}/bin/mdsh -i "$file"
done
'';
in
{
name = "mdsh";
description = "Markdown shell pre-processor.";
entry = toString script;
files = "\\.md$";
};
mypy =
{
name = "mypy";
description = "Static type checker for Python";
entry = settings.mypy.binPath;
files = "\\.py$";
};
nil =
{
name = "nil";
description = "Incremental analysis assistant for writing in Nix.";
entry =
let
script = pkgs.writeShellScript "precommit-nil" ''
for file in $(echo "$@"); do
${tools.nil}/bin/nil diagnostics "$file"
done
'';
in
builtins.toString script;
files = "\\.nix$";
};
nixfmt =
{
name = "nixfmt";
description = "Nix code prettifier.";
entry = "${tools.nixfmt}/bin/nixfmt ${lib.optionalString (settings.nixfmt.width != null) "--width=${toString settings.nixfmt.width}"}";
files = "\\.nix$";
};
nixpkgs-fmt =
{
name = "nixpkgs-fmt";
description = "Nix code prettifier.";
entry = "${tools.nixpkgs-fmt}/bin/nixpkgs-fmt";
files = "\\.nix$";
};
statix =
{
name = "statix";
description = "Lints and suggestions for the Nix programming language.";
entry = with settings.statix;
"${tools.statix}/bin/statix check -o ${format} ${if (ignore != [ ]) then "-i ${lib.escapeShellArgs (lib.unique ignore)}" else ""}";
files = "\\.nix$";
pass_filenames = false;
};
elm-format =
{
name = "elm-format";
description = "Format Elm files.";
entry =
"${tools.elm-format}/bin/elm-format --yes --elm-version=0.19";
files = "\\.elm$";
};
elm-review =
{
name = "elm-review";
description = "Analyzes Elm projects, to help find mistakes before your users find them.";
entry = "${tools.elm-review}/bin/elm-review";
files = "\\.elm$";
pass_filenames = false;
};
elm-test =
{
name = "elm-test";
description = "Run unit tests and fuzz tests for Elm code.";
entry = "${tools.elm-test}/bin/elm-test";
files = "\\.elm$";
pass_filenames = false;
};
shellcheck =
{
name = "shellcheck";
description = "Format shell files.";
types = [ "shell" ];
types_or =
# based on `goodShells` in https://github.com/koalaman/shellcheck/blob/master/src/ShellCheck/Parser.hs
[
"sh"
"ash"
"bash"
"bats"
"dash"
"ksh"
];
entry = "${tools.shellcheck}/bin/shellcheck";
};
bats =
{
name = "bats";
description = "Run bash unit tests.";
types = [ "shell" ];
types_or = [ "bats" "bash" ];
entry = "${tools.bats}/bin/bats -p";
};
stylua =
{
name = "stylua";
description = "An Opinionated Lua Code Formatter.";
types = [ "file" "lua" ];
entry = "${tools.stylua}/bin/stylua";
};
shfmt =
{
name = "shfmt";
description = "Format shell files.";
types = [ "shell" ];
entry = "${tools.shfmt}/bin/shfmt -w -s -l";
};
terraform-format =
{
name = "terraform-format";
description = "Format terraform (`.tf`) files.";
entry = "${tools.terraform-fmt}/bin/terraform-fmt";
files = "\\.tf$";
};
yamllint =
{
name = "yamllint";
description = "Yaml linter.";
types = [ "file" "yaml" ];
entry =
let
cmdArgs =
mkCmdArgs [
[ (settings.yamllint.relaxed) "-d relaxed" ]
[ (settings.yamllint.configPath != "") "-c ${settings.yamllint.configPath}" ]
];
in
"${tools.yamllint}/bin/yamllint ${cmdArgs}";
};
rustfmt =
let
wrapper = pkgs.symlinkJoin {
name = "rustfmt-wrapped";
paths = [ tools.rustfmt ];
nativeBuildInputs = [ pkgs.makeWrapper ];
postBuild = ''
wrapProgram $out/bin/cargo-fmt \
--prefix PATH : ${lib.makeBinPath [ tools.cargo tools.rustfmt ]}
'';
};
in
{
name = "rustfmt";
description = "Format Rust code.";
entry = "${wrapper}/bin/cargo-fmt fmt ${cargoManifestPathArg} -- --color always";
files = "\\.rs$";
pass_filenames = false;
};
clippy =
let
wrapper = pkgs.symlinkJoin {
name = "clippy-wrapped";
paths = [ tools.clippy ];
nativeBuildInputs = [ pkgs.makeWrapper ];
postBuild = ''
wrapProgram $out/bin/cargo-clippy \
--prefix PATH : ${lib.makeBinPath [ tools.cargo ]}
'';
};
in
{
name = "clippy";
description = "Lint Rust code.";
entry = "${wrapper}/bin/cargo-clippy clippy ${cargoManifestPathArg} ${lib.optionalString settings.clippy.offline "--offline"} -- ${lib.optionalString settings.clippy.denyWarnings "-D warnings"}";
files = "\\.rs$";
pass_filenames = false;
};
cargo-check =
{
name = "cargo-check";
description = "Check the cargo package for errors.";
entry = "${tools.cargo}/bin/cargo check ${cargoManifestPathArg}";
files = "\\.rs$";
pass_filenames = false;
};
purty =
{
name = "purty";
description = "Format purescript files.";
entry = "${tools.purty}/bin/purty";
files = "\\.purs$";
};
purs-tidy =
{
name = "purs-tidy";
description = "Format purescript files.";
entry = "${tools.purs-tidy}/bin/purs-tidy format-in-place";
files = "\\.purs$";
};
prettier =
{
name = "prettier";
description = "Opinionated multi-language code formatter.";
entry = with settings.prettier;
"${binPath} ${lib.optionalString write "--write"} ${lib.optionalString (output != null) "--${output}"} --ignore-unknown";
types = [ "text" ];
};
hunspell =
{
name = "hunspell";
description = "Spell checker and morphological analyzer.";
entry = "${tools.hunspell}/bin/hunspell -l";
files = "\\.((txt)|(html)|(xml)|(md)|(rst)|(tex)|(odf)|\\d)$";
};
topiary =
{
name = "topiary";
description = "A universal formatter engine within the Tree-sitter ecosystem, with support for many languages.";
entry =
## NOTE: Topiary landed in nixpkgs on 2 Dec 2022. Once it reaches a
## release of NixOS, the `throwIf` piece of code below will become
## useless.
lib.throwIf
(tools.topiary == null)
"The version of nixpkgs used by pre-commit-hooks.nix does not have the `topiary` package. Please use a more recent version of nixpkgs."
(
let
topiary-inplace = pkgs.writeShellApplication {
name = "topiary-inplace";
text = ''
for file; do
${tools.topiary}/bin/topiary --in-place --input-file "$file"
done
'';
};
in
"${topiary-inplace}/bin/topiary-inplace"
);
files = "(\\.json$)|(\\.toml$)|(\\.mli?$)";
};
typos =
{
name = "typos";
description = "Source code spell checker";
entry = with settings.typos;
"${tools.typos}/bin/typos --format ${format} ${lib.optionalString write "-w"} ${lib.optionalString diff "--diff"}";
};
html-tidy =
{
name = "html-tidy";
description = "HTML linter.";
entry = "${tools.html-tidy}/bin/tidy -quiet -errors";
files = "\\.html$";
};
eslint =
{
name = "eslint";
description = "Find and fix problems in your JavaScript code.";
entry = "${settings.eslint.binPath} --fix";
files = "${settings.eslint.extensions}";
};
hadolint =
{
name = "hadolint";
description = "Dockerfile linter, validate inline bash.";
entry = "${tools.hadolint}/bin/hadolint";
files = "Dockerfile$";
};
markdownlint =
{
name = "markdownlint";
description = "Style checker and linter for markdown files.";
entry = "${tools.markdownlint-cli}/bin/markdownlint -c ${pkgs.writeText "markdownlint.json" (builtins.toJSON settings.markdownlint.config)}";
files = "\\.md$";
};
govet =
{
name = "govet";
description = "Checks correctness of Go programs.";
entry =
let
# go vet requires package (directory) names as inputs.
script = pkgs.writeShellScript "precommit-govet" ''
set -e
for dir in $(echo "$@" | xargs -n1 dirname | sort -u); do
${tools.go}/bin/go vet ./"$dir"
done
'';
in
builtins.toString script;
# to avoid multiple invocations of the same directory input, provide
# all file names in a single run.
require_serial = true;
files = "\\.go$";
};
gotest = {
name = "gotest";
description = "Run go tests";
entry =
let
script = pkgs.writeShellScript "precommit-gotest" ''
set -e
# find all directories that contain tests
dirs=()
for file in "$@"; do
# either the file is a test
if [[ "$file" = *_test.go ]]; then
dirs+=("$(dirname "$file")")
continue
fi
# or the file has an associated test
filename="''${file%.go}"
test_file="''${filename}_test.go"
if [[ -f "$test_file" ]]; then
dirs+=("$(dirname "$test_file")")
continue
fi
done
# ensure we are not duplicating dir entries
IFS=$'\n' sorted_dirs=($(sort -u <<<"''${dirs[*]}")); unset IFS
# test each directory one by one
for dir in "''${sorted_dirs[@]}"; do
${tools.go}/bin/go test "./$dir"
done
'';
in
builtins.toString script;
files = "\\.go$";
# to avoid multiple invocations of the same directory input, provide
# all file names in a single run.
require_serial = true;
};
gofmt =
{
name = "gofmt";
description = "A tool that automatically formats Go source code";
entry =
let
script = pkgs.writeShellScript "precommit-gofmt" ''
set -e