#NAME

Code::TidyAll::Git::Prereceive - Git pre-receive hook that requires files to be tidyall'd

#VERSION

version 0.84

#SYNOPSIS

In .git/hooks/pre-receive:

  #!/usr/bin/perl
  use Code::TidyAll::Git::Prereceive;
  use strict;
  use warnings;

  Code::TidyAll::Git::Prereceive->check();


  # or

  my $input = do { local $/; <STDIN> };

  # Do other things with $input here

  my $hook = Code::TidyAll::Git::Prereceive->new();
  if (my $error = $hook->check_input($input)) {
      die $error;
  }

#DESCRIPTION

This module implements a Git pre-receive hook that checks if all pushed files are tidied and valid according to tidyall, and rejects the push if not.

This is typically used to validate pushes from multiple developers to a shared repo, possibly on a remote server.

See also Code::TidyAll::Git::Precommit, which operates locally.

#METHODS

This class provides the following methods:

#Code::TidyAll::Git::Prereceive->check(%params)

This method reads commit info from standard input, then checks that all files being added or modified in this push are tidied and valid according to tidyall. If not, then the entire push is rejected and the reason(s) are output to the client. e.g.

% git push
Counting objects: 9, done.
...
remote: [checked] lib/CHI/Util.pm
remote: Code before strictures are enabled on line 13 [TestingAndDebugging::RequireUseStrict]
remote:
remote: 1 file did not pass tidyall check
To ...
 ! [remote rejected] master -> master (pre-receive hook declined)

The configuration file (tidyall.ini or .tidyallrc) must be checked into git in the repo root directory, i.e. next to the .git directory.

In an emergency the hook can be bypassed by pushing the exact same set of commits 3 consecutive times (configurable via "allow_repeated_push"):

% git push
...
remote: 1 file did not pass tidyall check

% git push
...
*** Identical push seen 2 times
remote: 1 file did not pass tidyall check

% git push
...
*** Identical push seen 3 times
*** Allowing push to proceed despite errors

Or you can disable the hook in the repo being pushed to, e.g. by renaming .git/hooks/pre-receive.

If an unexpected runtime error occurs, it is reported but by default the commit will be allowed through (see "reject_on_error").

Passes mode = "commit" by default; see modes.

Key/value parameters:

allow_repeated_push

Number of times a push must be repeated exactly after which it will be let through regardless of errors. Defaults to 3. Set to 0 or undef to disable this feature.
conf_name

Conf file name to search for instead of the defaults.
extra_conf_files

An arrayref of extra configuration files referred to from the main configuration file, e.g.
```
extra_conf_files => ['perlcriticrc', 'perltidyrc']
```
These files will be pulled out of the repo alongside the main configuration file. If you don't list them here then you'll get errors like 'cannot find perlcriticrc' when the hook runs.
git_path

Path to git to use in commands, e.g. '/usr/bin/git' or '/usr/local/bin/git'. By default, just uses 'git', which will search the user's PATH.
reject_on_error

Whether check should reject the commit when an unexpected runtime error occurs. By default, the error will be reported but the commit will be allowed.
tidyall_class

Subclass to use instead of Code::TidyAll
tidyall_options

Hashref of options to pass to the Code::TidyAll constructor. You can use this to override the default options
```
mode  => 'commit',
quiet => 1,
```
or pass additional options.

#Code::TidyAll::Git::Prereceive->new(%params)

This takes the same parameters documented as documented in check above and returns a new object which you can then call check_input on.

#$prereceive->check_input($input)

Runs a check on $input, the text block of lines that came from standard input. You can call this manually before or after you do other processing on the input. Returns an error string if there was a problem or undef if there were no problems.

#KNOWN BUGS

This hook will ignore any files with only a single line of content (no newlines), as an imperfect way of filtering out symlinks.

#SUPPORT

Bugs may be submitted at https://github.com/houseabsolute/perl-code-tidyall/issues.

#SOURCE

The source code repository for Code-TidyAll can be found at https://github.com/houseabsolute/perl-code-tidyall.

#AUTHORS

Jonathan Swartz <swartz@pobox.com>
Dave Rolsky <autarch@urth.org>

#COPYRIGHT AND LICENSE

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

The full text of the license can be found in the LICENSE file included with this distribution.

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