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package Plack::Middleware::GitStatus; |
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118186
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use strict; |
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use warnings; |
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our $VERSION = '0.02'; |
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use parent 'Plack::Middleware'; |
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use Plack::Util::Accessor qw(path git_dir); |
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use Plack::Util; |
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use Cache::FileCache; |
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use Cwd; |
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use Git::Repository 'Log'; |
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use Time::Piece; |
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use Try::Tiny; |
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our $CACHE = Cache::FileCache->new({ |
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namespace => 'Plack::Middleware::GitStatus', |
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default_expires_in => 24 * 60 * 60, # 1 day |
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}); |
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our $CACHE_KEY = 'git-status'; |
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our $WORKTREE; |
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sub prepare_app { |
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my $self = shift; |
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try { |
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$WORKTREE = Git::Repository->new(work_tree => $self->{git_dir} || getcwd); |
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} catch { |
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$self->{error} ||= $_; |
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}; |
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# reset git message cache when restating app |
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$CACHE->clear; |
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$CACHE->set($CACHE_KEY => $self->_git_message || ''); |
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} |
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sub call { |
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my ($self, $env) = @_; |
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if ($self->path && $env->{PATH_INFO} eq $self->path) { |
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my $body = $CACHE->get($CACHE_KEY) || do { |
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$CACHE->set($CACHE_KEY => $self->_git_message || ''); |
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}; |
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if ($self->{error}) { |
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return [500, ['Content-Type' => 'text/plain'], [ $self->{error} ]]; |
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} |
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return [200, ['Content-Type' => 'text/plain'], [ $body ]]; |
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} |
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return $self->app->($env); |
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} |
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sub _git_message { |
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my $self = shift; |
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return undef unless defined $WORKTREE; |
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my ($brach_name, $last_commit); |
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try { |
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$brach_name = $self->_current_branch; |
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$last_commit = $self->_last_commit; |
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} catch { |
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$self->{error} ||= $_; |
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return undef; |
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}; |
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my $msg = "CurrentBranch: $brach_name\n"; |
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$msg .= sprintf "Commit: %s\n", $last_commit->{commit}; |
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$msg .= sprintf "Author: %s\n", $last_commit->{author}; |
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$msg .= sprintf "Date: %s\n", $last_commit->{date}; |
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$msg .= sprintf "Message: %s", $last_commit->{message}; |
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return $msg; |
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} |
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sub _current_branch { |
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my $self = shift; |
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my (@lines) = $WORKTREE->run('status'); |
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$lines[0] =~ /branch (.+)$/; |
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return $1; |
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} |
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86
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sub _last_commit { |
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my $self = shift; |
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89
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my ($log) = Git::Repository->log('-1'); |
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return +{ |
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commit => $log->commit, |
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author => $log->author, |
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message => $log->message, |
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date => _unixtime_to_date($log->author_localtime), |
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}; |
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} |
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98
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sub _unixtime_to_date { |
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my $lt = localtime($_[0]); |
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my $t = gmtime($lt->epoch); |
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return $t; |
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} |
103
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104
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1; |
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__END__ |