#!/usr/bin/perl
-# This is a generic update hook script for GIT repositories.
+# This is a generic update/post-receive hook script for GIT repositories.
# Written by Martin Mares <mj@ucw.cz> and placed into public domain.
use strict;
'mail-to=s' => \$mail_to,
'subject-prefix=s' => \$subject_prefix,
'max-diff-size=s' => \$max_diff_size,
-) and @ARGV == 3 or die <<AMEN ;
-Usage: $0 [<options>] <refname> <sha1-old> <sha1-new>
+) and (@ARGV == 3 || !@ARGV) or die <<AMEN ;
+Usage as update hook: $0 [<options>] <refname> <sha1-old> <sha1-new>
+Usage as post-receive hook: $0 [<options>]
Options:
--mail-to=<address> Send mail to the given address
--subject-prefix=<px> Prefix subjects with [<px>] (default: GIT)
AMEN
-my ($ref, $old, $new) = @ARGV;
-$ref =~ s{^refs/heads/}{} or exit 0;
-$old ne $new or exit 0;
-
my $repo = POSIX::getcwd();
$repo =~ s{.*/}{};
-my $subj = '[' . $subject_prefix . ($ref eq 'master' ? '' : "/$ref") . ']';
-my $out = File::Temp->new() or die;
-my $outname = $out->filename;
-$out->autoflush(1);
-open ORIG_STDOUT, '>&', \*STDOUT;
-close STDOUT;
-open STDOUT, '>&', $out or die;
-
my @rev_list_options = ('--pretty', '--no-abbrev', '--date=iso');
my @diff_options = ('-C');
-sub scan_branches() {
- # Is there any branch pointing to $new ?
+sub update_ref($$$);
+
+open ORIG_STDOUT, '>&', \*STDOUT;
+
+if (@ARGV) {
+ update_ref($ARGV[0], $ARGV[1], $ARGV[2]); #FIXME
+} else {
+ while (<STDIN>) {
+ chomp;
+ my ($old, $new, $ref) = /^(\S+) (\S+) (.*)/ or die "Error parsing hook input ($_)\n";
+ update_ref($ref, $old, $new);
+ }
+}
+
+sub scan_branches($$) {
+ my ($ref, $new) = @_;
+ # Is there any branch pointing to $new (other than $ref)?
for (`git branch -v --no-abbrev`) {
chomp;
my ($name, $sha) = /^..(\S+)\s+(\S+)/ or die;
return;
}
-sub scan_commits() {
+sub scan_commits($$) {
+ my ($old, $new) = @_;
my @commits = ();
for (`git rev-list $old..$new --pretty=format:"# %H (%P) %s"`) {
chomp;
return @commits;
}
-sub most_recent() {
- print $out "Most recent commits:\n\n";
+sub most_recent($) {
+ my ($new) = @_;
+ print STDOUT "Most recent commits:\n\n";
system 'git', 'rev-list', @rev_list_options, '--max-count=20', $new;
}
-sub output_size() {
+sub output_size($) {
+ my ($out) = @_;
$out->seek(0, 2);
return $out->tell;
}
-if ($old =~ /^0+$/) {
- # Creation of a branch
- $subj .= ' Created branch';
- my $copy_of = scan_branches();
- if (defined $copy_of) {
- $subj .= " as a copy of $copy_of";
- print $out "Created branch $ref as a copy of $copy_of ($new).\n";
- } else {
- print $out "Created branch $ref ($new).\n\n";
- most_recent();
- }
-} elsif ($new =~ /^0+$/) {
- # Deletion of a branch
- $subj .= ' Branch deleted';
- print $out "Deleted branch $ref ($old).\n";
-} else {
- my $lca = `git merge-base $old $new`; die if $?;
- chomp $lca;
- if ($lca eq $old) {
- # Fast forward ... scan all objects
- my @commits = scan_commits();
- my @nonmerges = grep { @{$_->{parents}} == 1 } @commits;
- @commits or exit;
-
- # Construct subject
- # Try to recognize simple merges and display them as such
- my $c0 = $commits[0];
- my $n0 = $nonmerges[0];
- my $c0p = $c0->{parents};
- if (@{$c0p} == 2 &&
- ($c0p->[0] eq $old || $c0p->[1] eq $old) &&
- $c0->{subject} =~ m{^\s*Merge branch '([^']*)' into (\S+)} &&
- (($1 eq $ref) != ($2 eq $ref))) {
- # Pushed a merge of the current branch with another local branch
- $subj .= ' ' . $c0->{subject};
- } elsif ($n0) {
- # Otherwise take the subject of the first non-merge commit
- $subj .= ' ' . $n0->{subject};
+sub update_branch($$$$$)
+{
+ my ($branch, $old, $new, $out, $headers) = @_;
+
+ my $subj = '[' . $subject_prefix . ($branch eq 'master' ? '' : "/$branch") . ']';
+ if ($old =~ /^0+$/) {
+ # Creation of a branch
+ $subj .= ' Created branch';
+ my $copy_of = scan_branches($branch, $new);
+ if (defined $copy_of) {
+ $subj .= " as a copy of $copy_of";
+ print $out "Created branch $branch as a copy of $copy_of ($new).\n";
} else {
- # If there is none, take the first merge
- $subj .= ' ' . $c0->{subject};
+ print $out "Created branch $branch ($new).\n\n";
+ most_recent($new);
}
-
- print $out "Push to branch $ref ($old -> $new)\n\n";
-
- # If there are multiple commits, mention that
- if (@nonmerges > 1) {
- $subj .= ' [' . (scalar @commits) . ' commits]';
- print $out 'Pushed ', (scalar @commits), " commits. Overall diffstat:\n\n";
+ } elsif ($new =~ /^0+$/) {
+ # Deletion of a branch
+ $subj .= ' Branch deleted';
+ print $out "Deleted branch $branch ($old).\n";
+ } else {
+ my $lca = `git merge-base $old $new`; die if $?;
+ chomp $lca;
+ if ($lca eq $old) {
+ # Fast forward ... scan all objects
+ my @commits = scan_commits($old, $new);
+ my @nonmerges = grep { @{$_->{parents}} == 1 } @commits;
+ @commits or return;
+
+ # Construct subject
+ # Try to recognize simple merges and display them as such
+ my $c0 = $commits[0];
+ my $n0 = $nonmerges[0];
+ my $c0p = $c0->{parents};
+ if (@{$c0p} == 2 &&
+ ($c0p->[0] eq $old || $c0p->[1] eq $old) &&
+ $c0->{subject} =~ m{^\s*Merge branch '([^']*)' into (\S+)} &&
+ (($1 eq $branch) != ($2 eq $branch))) {
+ # Pushed a merge of the current branch with another local branch
+ $subj .= ' ' . $c0->{subject};
+ } elsif ($n0) {
+ # Otherwise take the subject of the first non-merge commit
+ $subj .= ' ' . $n0->{subject};
+ } else {
+ # If there is none, take the first merge
+ $subj .= ' ' . $c0->{subject};
+ }
+
+ print $out "Push to branch $branch ($old -> $new)\n\n";
+
+ # If there are multiple commits, mention that
+ if (@nonmerges > 1) {
+ $subj .= ' [' . (scalar @commits) . ' commits]';
+ print $out 'Pushed ', (scalar @commits), " commits. Overall diffstat:\n\n";
+ }
+
+ # Print an overall diffstat
+ system 'git', 'diff', '--stat', $old, $new;
+ print $out "\n";
+ my $pos_after_header = output_size($out);
+
+ # Show individual commits with diffs
+ system 'git', 'log', @rev_list_options, @diff_options, '-p', "$old..$new";
+
+ # If the file is too long, truncate it and print just a summary
+ if (defined($max_diff_size) && output_size($out) > $max_diff_size) {
+ $out->truncate($pos_after_header);
+ output_size($out);
+ print $out "Diff was too long, printing just a summary.\n\n";
+ system 'git', 'log', @rev_list_options, "$old..$new";
+ }
+ } elsif ($lca eq $new) {
+ # Rewind
+ $subj .= ' Branch rewound';
+ print $out "Rewound branch $branch ($old -> $new).\n\n";
+ most_recent($new);
+ } else {
+ # Otherwise it is a rebase
+ $subj .= ' Branch rebased';
+ print $out "Rebased branch $branch ($old -> $new).\n\n";
+ print $out "Commits from common ancestor:\n\n";
+ system 'git', 'rev-list', @rev_list_options, $new, "^$old";
}
+ }
- # Print an overall diffstat
- system 'git', 'diff', '--stat', $old, $new;
- print $out "\n";
- my $pos_after_header = output_size();
-
- # Show individual commits with diffs
- system 'git', 'log', @rev_list_options, @diff_options, '-p', "$old..$new";
+ $headers->{'Subject'} = $subj;
+ $headers->{'X-Git-Branch'} = $branch;
+ return 1;
+}
- # If the file is too long, truncate it and print just a summary
- if (defined($max_diff_size) && output_size() > $max_diff_size) {
- $out->truncate($pos_after_header);
- output_size();
- print $out "Diff was too long, printing just a summary.\n\n";
- system 'git', 'log', @rev_list_options, "$old..$new";
- }
- } elsif ($lca eq $new) {
- # Rewind
- $subj .= ' Branch rewound';
- print $out "Rewound branch $ref ($old -> $new).\n\n";
- most_recent();
+sub update_ref($$$)
+{
+ my ($ref, $old, $new) = @_;
+ $old ne $new or return;
+ my ($type, $name) = ($ref =~ m{^refs/([^/]*)/(.*)}) or return;
+
+ my $out = File::Temp->new() or die;
+ my $outname = $out->filename;
+ $out->autoflush(1);
+ close STDOUT;
+ open STDOUT, '>&', $out or die;
+
+ my $headers = {
+ 'X-Git-Repo' => $repo,
+ 'X-Git-Old-SHA' => $old,
+ 'X-Git-New-SHA' => $new,
+ };
+
+ my $send;
+ if ($type eq 'heads') { $send = update_branch($name, $old, $new, $out, $headers); }
+ $out->close();
+ $send or return;
+
+ if (defined $mail_to) {
+ close STDIN;
+ open STDIN, '<', $outname;
+ my @mutt = (
+ 'mutt',
+ '-F/dev/null',
+ '-x',
+ '-e', 'set charset="utf-8"',
+ '-e', 'set send_charset="us-ascii:iso-8859-2:utf-8"',
+ '-s', $headers->{'Subject'},
+ );
+ delete $headers->{'Subject'};
+ push @mutt, map { ('-e', "my_hdr $_: " . $headers->{$_}) } keys %$headers;
+ system @mutt, $mail_to;
} else {
- # Otherwise it is a rebase
- $subj .= ' Branch rebased';
- print $out "Rebased branch $ref ($old -> $new).\n\n";
- print $out "Commits from common ancestor:\n\n";
- system 'git', 'rev-list', @rev_list_options, $new, "^$old";
+ open STDOUT, '>&', \*ORIG_STDOUT;
+ print map { "$_: " . $headers->{$_} . "\n" } sort keys %$headers;
+ print "\n";
+ system 'cat', $outname;
+ print "\n";
}
}
-
-$out->close();
-if (defined $mail_to) {
- close STDIN;
- open STDIN, '<', $outname;
- system 'mutt',
- '-F/dev/null',
- '-x',
- '-e', 'set charset="utf-8"',
- '-e', 'set send_charset="us-ascii:iso-8859-2:utf-8"',
- '-e', "my_hdr X-Git-Repo: $repo",
- '-e', "my_hdr X-Git-Branch: $ref",
- '-e', "my_hdr X-Git-Old-SHA: $old",
- '-e', "my_hdr X-Git-New-SHA: $new",
- '-s', $subj,
- $mail_to;
-} else {
- open STDOUT, '>&', \*ORIG_STDOUT;
- print "Subject: $subj\n\n";
- system 'cat', $outname;
-}
projects / git-tools.git / commitdiff