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package MGA::Git;
use strict;
use Git;
use YAML qw(LoadFile);
use Template;
use File::Slurp;
use File::Basename;
use Net::LDAP;
use feature 'state';
use Data::Dump qw/dd/;
our $config_file = '/usr/share/mgagit/config';
our $config = LoadFile($ENV{MGAGIT_CONF} || $config_file);
our $etc_config_file = '/etc/mgagit.conf';
my $etc_config = LoadFile($etc_config_file);
@{$config}{keys %$etc_config} = values %$etc_config;
sub load_gitrepos_dir {
my ($repos, $infos) = @_;
if (!$infos->{include_dir}) {
my ($dir) = fileparse($infos->{git_url});
$dir =~ s/\.git$//;
$infos->{include_dir} = "$config->{repodef_dir}/$dir";
if (-d $infos->{include_dir}) {
my $repo = Git->repository(Directory => $infos->{include_dir});
$repo->command('pull');
} else {
Git::command('clone', $infos->{git_url}, $infos->{include_dir});
my $repo = Git->repository(Directory => $infos->{include_dir});
$repo->command('remote', 'add', 'origin', $infos->{git_url});
}
}
opendir(my $dh, $infos->{include_dir})
|| die "Error opening $infos->{include_dir}: $!";
while (my $file = readdir($dh)) {
if (-d "$infos->{include_dir}/$file") {
next if $file =~ m/^\./;
my %i = %$infos;
$i{prefix} .= '/' . $file;
$i{include_dir} .= '/' . $file;
load_gitrepos_dir($repos, \%i);
} elsif ($file =~ m/(.+)\.repo$/) {
my $bname = $1;
my $name = "$infos->{prefix}/$bname";
$repos->{$name} = LoadFile("$infos->{include_dir}/$file");
$repos->{$name}{name} = $bname;
@{$repos->{$name}}{keys %$infos} = values %$infos;
}
}
closedir $dh;
}
sub load_gitrepos {
my ($r) = @_;
$r->{repos} = {};
foreach my $repodef (@{$config->{repos_config}}) {
if ($repodef->{include_dir} || $repodef->{git_url}) {
load_gitrepos_dir($r->{repos}, $repodef);
}
foreach my $repo ($repodef->{repos} ? @{$repodef->{repos}} : ()) {
my $name = "$repodef->{prefix}/$repo->{name}";
$r->{repos}{$name} = $repo;
my %infos = %$repodef;
delete $infos{repos};
@{$r->{repos}{$name}}{keys %infos} = values %infos;
}
}
}
sub get_ldap {
state $ldap;
return $ldap if $ldap;
my $bindpw = read_file($config->{bindpwfile})
or die "Error reading $config->{bindpwfile}";
chomp $bindpw;
$ldap = Net::LDAP->new($config->{ldapserver}) or die "$@";
my $m = $ldap->start_tls(verify => 'none');
die $m->error if $m->is_error;
$m = $ldap->bind($config->{binddn}, password => $bindpw);
die $m->error if $m->is_error;
return $ldap;
}
sub re {
my ($re, $txt) = @_;
my $rr = qr/$config->{$re}/;
return $txt =~ m/$rr/ ? $1 : undef;
}
sub load_groups {
my ($r) = @_;
return unless $config->{use_ldap} eq 'yes';
my $ldap = get_ldap;
my $m = $ldap->search(
base => $config->{groupbase},
filter => $config->{groupfilter},
);
my $res = $m->as_struct;
@{$r->{groups}}{map { re('group_re', $_) } keys %$res} =
map { [ map { re('uid_username_re', $_) || () } @{$_->{member}} ] }
values %$res;
}
sub load_users {
my ($r) = @_;
return unless $config->{use_ldap} eq 'yes';
my $ldap = get_ldap;
my $m = $ldap->search(
base => $config->{userbase},
filter => $config->{userfilter},
);
my @users = grep { $_->{sshpublickey} } values %{$m->as_struct};
@{$r->{users}}{map { $_->{uid}[0] } @users} = @users;
}
sub get_tmpl {
my ($name, $ext) = @_;
state %tmpl;
return $tmpl{"$name.$ext"} if $tmpl{"$name.$ext"};
my $tmpl_file = "$config->{tmpl_dir}/$name.$ext";
$tmpl{"$name.$ext"} = read_file($tmpl_file);
die "Error reading $tmpl_file" unless $tmpl{"$name.$ext"};
return $tmpl{"$name.$ext"};
}
sub process_tmpl {
my ($tmplname, $ext, $vars) = @_;
my $tt = Template->new;
my $tmpl = get_tmpl($tmplname, $ext);
my $c;
$tt->process(\$tmpl, $vars, \$c);
return $c;
}
sub gitolite_repo_config {
my ($r, $repo) = @_;
my $vars = {
r => $r,
repo => $repo,
config => $config,
};
return process_tmpl($r->{repos}{$repo}{gl_template}, 'gl', $vars);
}
sub gitolite_group_config {
my ($r, $group) = @_;
my $vars = {
r => $r,
group => $group,
config => $config,
};
return process_tmpl('group', 'gl', $vars);
}
sub gitolite_config {
my ($r) = @_;
my (@repos, @groups);
@repos = map { gitolite_repo_config($r, $_) } sort keys %{$r->{repos}};
@groups = map { gitolite_group_config($r, $_) } sort keys %{$r->{groups}};
return join("\n", @groups, @repos);
}
sub update_gitolite_keydir {
my ($r) = @_;
opendir(my $dh, $config->{pubkey_dir})
|| die "Error opening $config->{include_dir}: $!";
my @files = grep { ! m/^\./ } readdir($dh);
closedir $dh;
my %users_old;
@users_old{@files} = map { read_file("$config->{pubkey_dir}/$_") } @files;
my %users_new;
foreach my $u (keys %{$r->{users}}) {
my $i = 0;
foreach my $key (@{$r->{users}{$u}{sshpublickey}}) {
next unless $key;
$users_new{"$u\@$i.pub"} = $key;
$i++;
}
}
foreach my $file (keys %users_old) {
chomp $users_old{$file};
if (!$users_new{$file}) {
print "Removing $file\n";
unlink "$config->{pubkey_dir}/$file";
$r->{keydir_changed} = 1;
}
}
foreach my $file (keys %users_new) {
chomp $users_new{$file};
if (!$users_old{$file} || $users_old{$file} ne $users_new{$file}) {
print "Writing $file\n";
write_file("$config->{pubkey_dir}/$file", $users_new{$file});
$r->{keydir_changed} = 1;
}
}
}
sub update_gitolite_config {
my ($r) = @_;
my $oldconf = -f $config->{gitolite_config}
? read_file($config->{gitolite_config}) : '';
my $newconf = gitolite_config($r);
if ($oldconf ne $newconf) {
write_file($config->{gitolite_config}, $newconf);
$r->{glconf_changed} = 1;
}
}
sub run_gitolite {
my ($r) = @_;
if ($config->{run_gitolite} && $config->{run_gitolite} eq 'yes'
&& ($r->{keydir_changed} || $r->{glconf_changed})) {
system('gitolite', 'compile');
system('gitolite', 'setup', '--hooks-only');
system('gitolite', 'trigger', 'POST_COMPILE');
}
}
1;
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