NAME
    githook-perltidy - run perltidy and podtidy before Git commits

VERSION
    0.10.2.

SYNOPSIS
    Make sure everyone uses the same tidy options across your project:

        $ perltidy -b -w -dop | grep -v dump-options > .perltidyrc
        $ echo '--columns 72' > .podtidy-opts
        $ git add .perltidyrc .podtidy-opts
        $ git commit

    Install the pre-commit and post-commit hooks:

        $ githook-perltidy install

DESCRIPTION
    githook-perltidy is a script that can be invoked by Git pre-commit and
    post-commit hooks to run perltidy and podtidy on Perl and POD files (and
    optionally run make(1) targets), ensuring that your project's code is
    always cleanly committed.

    This script is is efficient: it only modifies Perl and POD files that
    are being committed and not every file in your repository. It also tries
    its hardest to be safe: the index and working tree are stashed away
    beforehand, and restored in the event of failure.

    There are three types of action this script will take as determed by the
    first argument:

    install [MAKE ARGS]
        Should be run from the command-line in the top-level directory of
        your repository. Writes pre-commit and post-commit files in the
        $GIT_DIR/hooks/ directory. Any MAKE ARGS given will be added to the
        "githook-perltidy pre-commit" call.

        This command will fail if there is no .perltidyrc file in the
        repository, if the hooks directory isn't found, or if either of the
        hook files already exist.

    pre-commit [MAKE ARGS]
        Called from a Git pre-commit hook. Backs up your index and working
        tree into a Git stash. Runs perltidy on any Perl files in the Git
        index using the .perltidyrc. If .podtidy-opts exists then podtidy
        will also be run on any POD files in the Git index, otherwise a
        warning is issued.

        If any MAKE ARGS are given they will be passed to a make call. This
        way you can ensure that your code passes a "make test" or "make
        disttest" check before each commit. If the PERLTIDY_MAKE environment
        variable exists it will *override* any arguments. Setting
        PERLTIDY_MAKE="" will skip the make call entirely.

        Failure of any of the above will result in a hard reset and the
        saved stash popped (I.e. re-applied and deleted). The commit will be
        stopped. On success the index is updated with the tidied files and
        the commit is allowed to proceed. In the event that your index was
        an interactive or patched version of your working tree, the stash
        will be kept for the post-commit hook. Otherwise it will be dropped.

        This command will fail if there is no .perltidyrc file in the
        repository.

    post-commit
        Called from a Git post-commit hook to re-apply stashed (but not
        indexed) changes. In the event that your index was an interactive or
        patched version of your working tree, the post-commit command does
        the following:

        *   checks out the *previous* commit

        *   pops the stash saved by the pre-commit command

        *   tidies the files that were stashed

        *   saves a new stash with the completely tidied files

        *   checks out the *latest* commit

        *   pops the stash with the tidied files

CAVEATS
    There are two ways in which githook-perltidy behaviour may affect your
    existing workflow. Firstly if you are accustomed to commiting changes to
    files which are still open in your editor, your editor may complain that
    the underlying file has changed on disk. Possibily your editor doesn't
    even detect the change and your next write will not be 'tidy'.

    Secondly, aborting a commit with an empty commit message or via a later
    command in the pre-commit hook will still result in changed (tidied)
    files on disk and in the index.

FILES
    .perltidyrc
        Perltidy command options file.

    .podtidy-opts
        Podtidy command options file. This is githook-perltidy specific.

    .githook-perltidy
        A temporary file used to communicate between the pre-commit and
        post-commit calls.

SUPPORT
    This tool is managed via github:

        https://github.com/mlawren/githook-perltidy

SEE ALSO
    githooks(5), perltidy(1), podtidy(1)

AUTHOR
    Mark Lawrence <nomad@null.net>

COPYRIGHT AND LICENSE
    Copyright 2011-2012 Mark Lawrence <nomad@null.net>

    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
    Free Software Foundation; either version 3 of the License, or (at your
    option) any later version.