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maintaining a partial copy of a repo...

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...with gl-pre-git and update.secondary hooks
This commit is contained in:
Sitaram Chamarty 2011-11-08 20:08:44 +05:30
parent 5858ecb56e
commit f3eae5e170
6 changed files with 448 additions and 20 deletions
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contrib/partial-copy/gl-pre-git Executable file
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#!/usr/bin/perl
use strict;
use warnings;
# called from gitolite before any git operations are run
# "we", "our repo" => the partial copy
# "main", "pco" => the one which we are a "partial copy of"
my $main=`git config --file $ENV{GL_REPO_BASE_ABS}/$ENV{GL_REPO}.git/config --get gitolite.partialCopyOf`;
chomp ($main);
exit 0 unless $main;
die "ENV GL_RC not set\n" unless $ENV{GL_RC};
die "ENV GL_BINDIR not set\n" unless $ENV{GL_BINDIR};
unshift @INC, $ENV{GL_BINDIR};
require gitolite or die "parse gitolite.pm failed\n";
gitolite->import;
# go to the main repo. Find a list of all the refs it has, and for each one,
# check if this user is allowed to read that ref from our repo. If he is, add
# it to a list.
my %allowed;
wrap_chdir("$ENV{GL_REPO_BASE_ABS}/$main.git");
for my $ref (`git for-each-ref refs/heads '--format=%(refname)'`) {
chomp($ref);
my $ret = check_access($ENV{GL_REPO}, $ref, 'R', 1);
$allowed{$ref} = 1 unless $ret =~ /DENIED/;
}
# now go to our repo and...
wrap_chdir("$ENV{GL_REPO_BASE_ABS}/$ENV{GL_REPO}.git");
# delete all existing refs that are not "allowed" (e.g., refs that were
# previously allowed but now are not, due to config file/rules change)
for my $ref (`git for-each-ref refs '--format=%(refname)'`) {
chomp($ref);
next if $allowed{$ref};
system("git", "update-ref", "-d", $ref);
}
# now copy all allowed branches (and their tags, implicitly)
for my $ref (sort keys %allowed) {
system("git", "fetch", "-f", "$ENV{GL_REPO_BASE_ABS}/$main.git", "$ref:$ref");
}
# now allow the git operation to proceed
exit 0