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  -b --branch[=]regex
                Watch for any changes to branches matching "regex"
                by default looks only at local branches
  -r --remote   With --branch only look at remote branches
  -a --all      With --branch look at all branches (local and remote)
  -m --max[=]int
                Look only --max changes back in history to see what is
                happening (Default 10)
  -s --sleep[=]int
                Sleep time between fetches (devault 60s)
  -q --quiet    Suppress notifying of what files and branches have changed
  -v --verbose  Show more detailes
     --version  Prints the version information
     --help     Prints this help information
     --man      Prints the full documentation for git-watch

=head1 DESCRIPTION

The C<git-watch> command allows you to run a command when something changes.
The simple option is C<show> which just shows what has changed when it changes
and nothing else, this is useful for seeing what is happening in the
repository. The the C<do> sub-command actually runs a script every time a
change is detected.

=head2 show

The output of C<show> is changed with the C<--quiet> and C<--verbose> options to
show more or less information.

=head2 do

When the C<do> sub-command runs it sets the environment variables C<$WATCH_SHA>,
C<$WATCH_FILES> and C<$WATCH_BRANCHES> with the latest commit SHA, the files
that have changed and the branches that have changed respectively. The files
and branches are comma separated for your command to inspect.

A simple example:

  git watch 'echo $WATCH_FILES'

This would just echo the files that have changed with each change.

=head2 Notes

If trying to watch a branch that is connected to a remote branch the C<--pull>
isn't currently working as expected. The workaround is to watch the remote
branch and do the pull your self. eg

 $ git watch do -rb origin/master -- 'git pull --ff -r; your-command'

=head1 SUBROUTINES/METHODS

=head1 DIAGNOSTICS

=head1 CONFIGURATION AND ENVIRONMENT

=head1 DEPENDENCIES

=head1 INCOMPATIBILITIES

=head1 BUGS AND LIMITATIONS

There are no known bugs in this module.

Please report problems to Ivan Wills (ivan.wills@gmail.com).

Patches are welcome.

=head1 AUTHOR

Ivan Wills - (ivan.wills@gmail.com)

=head1 LICENSE AND COPYRIGHT

Copyright (c) 2014 Ivan Wills (14 Mullion Close, Hornsby Heights, NSW Australia 2077).
All rights reserved.

This module is free software; you can redistribute it and/or modify it under
the same terms as Perl itself. See L<perlartistic>.  This program is
distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

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