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package MGA::Git;
use strict;
use Git::Repository;
use YAML qw(LoadFile DumpFile);
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 %$etc_config;
sub load_gitrepos_dir {
my ($r, $infos) = @_;
if (!$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->new(work_tree => $infos->{include_dir});
$repo->run('pull');
} else {
Git::Repository->run(clone => $infos->{git_url}, $infos->{include_dir});
}
}
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 if $i{prefix};
$i{include_dir} .= '/' . $file;
load_gitrepos_dir($r, \%i);
} elsif ($file =~ m/(.+)\.repo$/ && $infos->{prefix}) {
my $bname = $1;
my $name = "$infos->{prefix}/$bname";
$r->{repos}{$name} = LoadFile("$infos->{include_dir}/$file");
$r->{repos}{$name}{name} = $bname;
$r->{repos}{$name}{origin} = $infos->{origin};
} elsif ($file =~ m/(.+)\.group$/ && exists $infos->{group_prefix}) {
my $bname = $1;
my $name = $infos->{group_prefix} . $bname;
if (exists $r->{groups}{$name}) {
print STDERR "Warning: Redifinition of $name group.\n";
next;
}
$r->{groups}{$name} = [ read_file("$infos->{include_dir}/$file") ];
chomp @{$r->{groups}{$name}};
}
}
closedir $dh;
}
sub load_gitrepos {
my ($r) = @_;
$r->{repos} = {};
foreach my $repodef (@{$config->{repos_config}}) {
$repodef->{origin} = $repodef->{prefix};
if ($repodef->{include_dir} || $repodef->{git_url}) {
load_gitrepos_dir($r, $repodef);
}
foreach my $repo ($repodef->{repos} ? @{$repodef->{repos}} : ()) {
my $name = "$repodef->{prefix}/$repo->{name}";
$repo->{origin} = $repodef->{origin};
$r->{repos}{$name} = $repo;
}
}
}
sub origin_config {
my ($r, $reponame, $confname) = @_;
my $origin = $r->{repos}{$reponame}{origin};
foreach my $repodef (@{$config->{repos_config}}) {
next unless ($repodef->{prefix} eq $origin);
return $repodef->{$confname} if defined $repodef->{$confname};
last;
}
return $config->{$confname};
}
sub repo_config {
my ($r, $reponame, $confname) = @_;
my $res = $r->{repos}{$reponame}{$confname};
return defined $res ? $res : origin_config($r, $reponame, $confname);
}
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};
my %keepinfos = map { $_ => 1 } @{$config->{ldap_users_infos}};
foreach my $user (@users) {
my $uid = $user->{uid}[0];
my %u = map { $keepinfos{$_} ? ($_ => $user->{$_}) : () } keys %$user;
$r->{users}{$uid} = \%u;
}
}
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 => $config,
repo_conf => sub { repo_config($r, $repo, @_) },
origin_conf => sub { origin_config($r, $repo, @_) },
};
return process_tmpl($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});
$r->{keydir_changed} = 1;
}
}
}
sub dumpdb {
my ($r) = @_;
DumpFile($config->{www_dir} . '/repos.yaml', $r);
}
sub update_gitolite_config {
my ($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;
|
