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package Gitolite::Hooks::Update;
# everything to do with the update hook
# ----------------------------------------------------------------------
@EXPORT = qw(
update
update_hook
);
use Exporter 'import';
use lib $ENV{GL_BINDIR};
use Gitolite::Common;
use Gitolite::Conf::Load;
use strict;
use warnings;
# ----------------------------------------------------------------------
sub update {
trace( 3, @_ );
# this is the *real* update hook for gitolite
my ( $ref, $oldsha, $newsha, $oldtree, $newtree, $aa ) = args(@ARGV);
my $ret = access( $ENV{GL_REPO}, $ENV{GL_USER}, $aa, $ref );
trace( 1, "access($ENV{GL_REPO}, $ENV{GL_USER}, $aa, $ref) -> $ret" );
_die $ret if $ret =~ /DENIED/;
exit 0;
}
{
my $text = '';
sub update_hook {
trace(1);
if ( not $text ) {
local $/ = undef;
$text = <DATA>;
}
return $text;
}
}
# ----------------------------------------------------------------------
sub args {
my ( $ref, $oldsha, $newsha ) = @_;
my ( $oldtree, $newtree, $aa );
# this is special to git -- the hash of an empty tree
my $empty = '4b825dc642cb6eb9a060e54bf8d69288fbee4904';
$oldtree = $oldsha eq '0' x 40 ? $empty : $oldsha;
$newtree = $newsha eq '0' x 40 ? $empty : $newsha;
my $merge_base = '0' x 40;
# for branch create or delete, merge_base stays at '0'x40
chomp( $merge_base = `git merge-base $oldsha $newsha` )
unless $oldsha eq '0' x 40
or $newsha eq '0' x 40;
$aa = 'W';
# tag rewrite
$aa = '+' if $ref =~ m(refs/tags/) and $oldsha ne ( '0' x 40 );
# non-ff push to ref (including ref delete)
$aa = '+' if $oldsha ne $merge_base;
# XXX $aa = 'D' if ( $repos{$ENV{GL_REPO}}{DELETE_IS_D} or $repos{'@all'}{DELETE_IS_D} ) and $newsha eq '0' x 40;
# XXX $aa = 'C' if ( $repos{$ENV{GL_REPO}}{CREATE_IS_C} or $repos{'@all'}{CREATE_IS_C} ) and $oldsha eq '0' x 40;
# and now "M" commits. This presents a bit of a problem. All the other
# accesses (W, +, C, D) were mutually exclusive in some sense. Sure a W could
# be a C or a + could be a D but that's by design. A merge commit, however,
# could still be any of the others (except a "D").
# so we have to *append* 'M' to $aa (if the repo has MERGE_CHECK in
# effect and this push contains a merge inside)
=for XXX
if ( $repos{ $ENV{GL_REPO} }{MERGE_CHECK} or $repos{'@all'}{MERGE_CHECK} ) {
if ( $oldsha eq '0' x 40 or $newsha eq '0' x 40 ) {
warn "ref create/delete ignored for purposes of merge-check\n";
} else {
$aa .= 'M' if `git rev-list -n 1 --merges $oldsha..$newsha` =~ /./;
}
}
=cut
return ( $ref, $oldsha, $newsha, $oldtree, $newtree, $aa );
}
1;
__DATA__
#!/usr/bin/perl
use strict;
use warnings;
BEGIN {
exit 0 if $ENV{GL_BYPASS_UPDATE_HOOK};
die "GL_BINDIR not set; aborting\n" unless $ENV{GL_BINDIR};
}
use lib $ENV{GL_BINDIR};
use Gitolite::Hooks::Update;
# gitolite update hook
# ----------------------------------------------------------------------
update(@ARGV); # is not expected to return
exit 1; # so if it does, something is wrong
|
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