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NAME

Git::Lint - lint git commits and messages

SYNOPSIS

use Git::Lint;

my $lint = Git::Lint->new();
$lint->run({ check => 'commit', profile => 'default' });
$lint->run({ check => 'message', file => 'file_path', profile => 'default' });

git-lint [--check commit] [--check message <message_file>]
         [--profile <name>]
         [--version] [--help]

DESCRIPTION

Git::Lint is a pluggable framework for linting git commits and messages.

For the commandline interface to Git::Lint, see the documentation for git-lint.

For adding check modules, see the documentation for Git::Lint::Check::Commit and Git::Lint::Check::Message.

CONSTRUCTOR

  • new

    Returns a reference to a new Git::Lint object.

METHODS

  • run

    Loads the check modules as defined by profile.

    run expects the following arguments:

    profile

    The name of a defined set of check modules to run.

    check

    Either commit or message.

    file

    If check is message, file is required.

  • config

    Returns the Git::Lint::Config object created by Git::Lint.

INSTALLATION

To install Git::Lint, download the latest release, then extract.

tar xzvf Git-Lint-0.008.tar.gz
cd Git-Lint-0.008

or clone the repo.

git clone https://github.com/renderorange/Git-Lint.git
cd Git-Lint

Generate the build and installation tooling.

perl Makefile.PL

Then build, test, and install.

make
make test && make install

Git::Lint can also be installed using cpanm.

cpanm Git::Lint

CONFIGURATION

Configuration is done through git config files (~/.gitconfig or /repo/.git/config).

Only one profile, default, is defined internally. default contains all check modules by default.

The default profile can be overridden through git config files (~/.gitconfig or /repo/.git/config).

To set the default profile to only run the Whitespace commit check:

[lint "profiles.commit"]
    default = Whitespace

Or set the default profile to Whitespace and the fictional commit check, Flipdoozler:

[lint "profiles.commit"]
    default = Whitespace, Flipdoozler

Additional profiles can be added with a new name and list of checks to run.

[lint "profiles.commit"]
    default = Whitespace, Flipdoozler
    hardcore = Other, Module, Names

Message check profiles can also be defined.

[lint "profiles.message"]
    # override the default profile to only contain SummaryLength, SummaryEndingPeriod, and BlankLineAfterSummary
    default = SummaryLength, SummaryEndingPeriod, BlankLineAfterSummary
    # create a summary profile with specific modules
    summary = SummaryEndingPeriod, SummaryLength

An example configuration is provided in the examples directory of this project.

Configuration is required. If no configuration exists, an error will be printed to STDERR, but the action allowed to complete.

blaine@base ~/git/test (master *) $ git add test
blaine@base ~/git/test (master +) $ git commit
git-lint: [error] configuration setup is required. see the documentation for instructions.
[master 894b6d0] test
 1 file changed, 1 insertion(+), 1 deletion(-)
blaine@base ~/git/test (master) $

ADDING NEW CHECK MODULES

git-lint can be configured to load check modules from a local directory using the localdir configuration setting.

To load modules from a local directory, add the lint config setting, with localdir key and directory location to the git config file.

[lint "config"]
    localdir = /home/blaine/tmp/git-lint/lib

In this example, we're adding a new commit check, Flipdoozler. Create the local directory and path for the new module.

$ mkdir -p /home/blaine/tmp/git-lint/lib/Git/Lint/Check/Commit

Then add the new check module.

$ vi /home/blaine/tmp/git-lint/lib/Git/Lint/Check/Commit/Flipdoozler.pm
package Git::Lint::Check::Commit::Flipdoozler;
...

Update the commit check profile to use the new module.

[lint "profiles.commit"]
    default = Whitespace, IndentTabs, MixedIndentTabsSpaces, Flipdoozler

git-lint will now warn for the check contained in Flipdoozler.

blaine@base ~/git/test (master +) $ git commit
git-lint: [commit] test - Flipdoozler (line 18)
blaine@base ~/git/test (master +) $

ENABLING CHECKS FOR REPOS

To enable as a pre-commit hook, copy the pre-commit script from the example/hooks directory into the .git/hooks directory of the repo you want to check.

Once copied, update the path and options to match your path and preferred profile.

To enable as a commit-msg hook, copy the commit-msg script from the example/hooks directory into the .git/hooks directory of the repo you want to check.

COPYRIGHT AND LICENSE

Copyright (c) 2022 Blaine Motsinger under the MIT license.

AUTHOR

Blaine Motsinger blaine@renderorange.com

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