Git pre-receive hook to check commits and code style
It is exhausting to edit files again and again to have a consistent style. This project provides a Git pre-receive hook to validate pushed commits on the Git server side. The hook avoids all issues by rejecting any commit not matching the rules to get in to the repository in the first place.
The pre-receive hook runs some checks on commits on its own, and searches for programming language specific syntax checkers on the PATH of the server to check changed files with them. The process is pretty fast, because only the added and modified files on the pushed commits are passed to the syntax checkers, also in parallel. It wouldn't slow you down unless your commits are touching hundreds of files.
It is possible to install the tool with
pip install igcommit
hooks/pre-receiveon you Git repositories on your Git server::
ln -s igcommit-receive /home/git/repositories/myproject.git/hooks/pre-receive
puppet parser validateand
Here is an example problem output::
=== CheckDuplicateCommitSummaries on CommitList === ERROR: summary "Add nagios check for early expiration of licenses" duplicated 2 times
=== CheckCommitSummary on 31d0f6b === WARNING: summary longer than 72 characters
=== CheckCommitSummary on 6bded65 === WARNING: past tense used on summary
=== CheckCommand "flake8" on src/check_multiple.py at 6bded65 === INFO: line 10 col 5: E225 missing whitespace around operator INFO: line 17 col 80: E501 line too long (122 > 79 characters) INFO: line 17 col 85: E203 whitespace before ','
=== CheckCommitMessage on 6fdbc00 === WARNING: line 7 is longer than 80 WARNING: line 9 is longer than 80
The script itself is currently configuration free. Though, some of the syntax checkers called by the script uses or requires configurations. Those configuration files has to be on the top level of the Git repository.
============== ========================================== ======== Syntax Checker Configuration File ============== ========================================== ======== coffeelint coffeelint.json, or package.json optional csslint .csslintrc optional eslint eslint.(js|yaml|yml|json), or package.json required flake8 .flake8, setup.cfg, or tox.ini optional htmlhint .htmlhintrc optional jscs .jscsrc, .jscs.json, or package.json required jshint .jshintrc, or package.json optional phpcs phpcs.xml, or phpcs.xml.dist optional puppet-lint .puppet-lint.rc optional pycodestyle setup.cfg, or tox.ini optional rubocop .rubocop.yml optional ============== ========================================== ========
Continuous Integration Server A continuous integration server can run such checks with the many other things it is doing. Moving this job from it has many benefits:
* Synchronous feedback * More efficient * Disallow any commit violating the rules
Pre-commit Hook Even though, pre-receive hook gives later feedback than pre-commit hook, it has many advantages over it:
* No client side configuration * Plugins has to be installed only once to the Git server * Everybody gets the same checks * Enforcement, nobody can skip the checks * Commit checking (pre-commit hook only gets what is changed in the commit)
IDE Integration The same advantages compared to pre-commit hooks applies to IDE integration. Though, IDE integration gives much sooner and nicer feedback, so it is still a good idea, even with the pre-receive hook.
The script has no dependencies on Python 3.4 or above. The script executes the validation commands using the shell. The necessary ones for checked repositories need to be installed separately. See the complete list of commands on the
config.py_. The commands which are not available on the
PATHis not going to be used.
I found it useful to check what the script would have complained if it had been active on different Git repositories. You can run a command like this to test this inside a Git repository against last 50 commits::
git log --reverse --oneline HEAD~50..HEAD | sed 's:\([^ ]*\) .*:\1 \1 refs/heads/master:' | python ../igcommit/igcommit-receive
Version 2.0 * Fix line numbers on syntax errors for executables being 1 off * Recognize and validate symlinks * Validate committer and author timestamps * Validate contributor names and email addresses * Reduce commit message line length limits * Complain about file extensions on executables
Version 2.1 * Add [TEMP] to recognized commit tags * Fix getting the changes of the initial commit (Zheng Wei) * Fix various file descriptor leaks * Check commit summaries more strictly * Check shebangs of non-executable files too * Don't check on empty file contents * Improve unicode support on Python 2 * Fix checking symlink targets
Version 2.2 * Fix
eslintconfiguration (Jerevia) * Accepts commits with
[TEMP]with issues * Stop skipping empty files * Make sure not to get unknown file contents * Move file extensions to config * Increase timestamp comparison tolerance for 1 more minute * Handle spaces on shebangs
Version 2.3 * Handle check command failing immediately * Support pushed tags * Fix failing on file check with bogus return code * Include list of commit tags on warning * Fix recognising commit tags
Version 2.4 * Fix recognising removed configuration files * Support
Version 2.5 * Fix unicode issue on Python 2 for XML, YAML, and JSON (jcoetsie)
Version 3.0 * Drop Python 2 support * Fix handling filenames with spaces (Friz-zy)
Version 3.1 * Stop complaining about the same commit for Git tags * Fix checking contributor names and email addresses * Stop complaining about file extensions we don't know about * Filter out checking format of files under
templates/directories * Improve code quality and style
The script is released under the MIT License. The MIT License is registered with and approved by the Open Source Initiative _.
..  https://opensource.org/licenses/MIT