GIF89a;
Mini Shell
Mini Shell
#!/usr/bin/perl -w
use strict;
use Git;
my $git = Git->repository();
sub add_remote_config {
my ($hash, $name, $what, $value) = @_;
if ($what eq 'url') {
# Having more than one is Ok -- it is used for push.
if (! exists $hash->{'URL'}) {
$hash->{$name}{'URL'} = $value;
}
}
elsif ($what eq 'fetch') {
$hash->{$name}{'FETCH'} ||= [];
push @{$hash->{$name}{'FETCH'}}, $value;
}
elsif ($what eq 'push') {
$hash->{$name}{'PUSH'} ||= [];
push @{$hash->{$name}{'PUSH'}}, $value;
}
if (!exists $hash->{$name}{'SOURCE'}) {
$hash->{$name}{'SOURCE'} = 'config';
}
}
sub add_remote_remotes {
my ($hash, $file, $name) = @_;
if (exists $hash->{$name}) {
$hash->{$name}{'WARNING'} = 'ignored due to config';
return;
}
my $fh;
if (!open($fh, '<', $file)) {
print STDERR "Warning: cannot open $file\n";
return;
}
my $it = { 'SOURCE' => 'remotes' };
$hash->{$name} = $it;
while (<$fh>) {
chomp;
if (/^URL:\s*(.*)$/) {
# Having more than one is Ok -- it is used for push.
if (! exists $it->{'URL'}) {
$it->{'URL'} = $1;
}
}
elsif (/^Push:\s*(.*)$/) {
$it->{'PUSH'} ||= [];
push @{$it->{'PUSH'}}, $1;
}
elsif (/^Pull:\s*(.*)$/) {
$it->{'FETCH'} ||= [];
push @{$it->{'FETCH'}}, $1;
}
elsif (/^\#/) {
; # ignore
}
else {
print STDERR "Warning: funny line in $file: $_\n";
}
}
close($fh);
}
sub list_remote {
my ($git) = @_;
my %seen = ();
my @remotes = eval {
$git->command(qw(config --get-regexp), '^remote\.');
};
for (@remotes) {
if (/^remote\.(\S+?)\.([^.\s]+)\s+(.*)$/) {
add_remote_config(\%seen, $1, $2, $3);
}
}
my $dir = $git->repo_path() . "/remotes";
if (opendir(my $dh, $dir)) {
local $_;
while ($_ = readdir($dh)) {
chomp;
next if (! -f "$dir/$_" || ! -r _);
add_remote_remotes(\%seen, "$dir/$_", $_);
}
}
return \%seen;
}
sub add_branch_config {
my ($hash, $name, $what, $value) = @_;
if ($what eq 'remote') {
if (exists $hash->{$name}{'REMOTE'}) {
print STDERR "Warning: more than one branch.$name.remote\n";
}
$hash->{$name}{'REMOTE'} = $value;
}
elsif ($what eq 'merge') {
$hash->{$name}{'MERGE'} ||= [];
push @{$hash->{$name}{'MERGE'}}, $value;
}
}
sub list_branch {
my ($git) = @_;
my %seen = ();
my @branches = eval {
$git->command(qw(config --get-regexp), '^branch\.');
};
for (@branches) {
if (/^branch\.([^.]*)\.(\S*)\s+(.*)$/) {
add_branch_config(\%seen, $1, $2, $3);
}
}
return \%seen;
}
my $remote = list_remote($git);
my $branch = list_branch($git);
sub update_ls_remote {
my ($harder, $info) = @_;
return if (($harder == 0) ||
(($harder == 1) && exists $info->{'LS_REMOTE'}));
my @ref = map { s|refs/heads/||; $_; } keys %{$git->remote_refs($info->{'URL'}, [ 'heads' ])};
$info->{'LS_REMOTE'} = \@ref;
}
sub list_wildcard_mapping {
my ($forced, $ours, $ls) = @_;
my %refs;
for (@$ls) {
$refs{$_} = 01; # bit #0 to say "they have"
}
for ($git->command('for-each-ref', "refs/remotes/$ours")) {
chomp;
next unless (s|^[0-9a-f]{40}\s[a-z]+\srefs/remotes/$ours/||);
next if ($_ eq 'HEAD');
$refs{$_} ||= 0;
$refs{$_} |= 02; # bit #1 to say "we have"
}
my (@new, @stale, @tracked);
for (sort keys %refs) {
my $have = $refs{$_};
if ($have == 1) {
push @new, $_;
}
elsif ($have == 2) {
push @stale, $_;
}
elsif ($have == 3) {
push @tracked, $_;
}
}
return \@new, \@stale, \@tracked;
}
sub list_mapping {
my ($name, $info) = @_;
my $fetch = $info->{'FETCH'};
my $ls = $info->{'LS_REMOTE'};
my (@new, @stale, @tracked);
for (@$fetch) {
next unless (/(\+)?([^:]+):(.*)/);
my ($forced, $theirs, $ours) = ($1, $2, $3);
if ($theirs eq 'refs/heads/*' &&
$ours =~ /^refs\/remotes\/(.*)\/\*$/) {
# wildcard mapping
my ($w_new, $w_stale, $w_tracked)
= list_wildcard_mapping($forced, $1, $ls);
push @new, @$w_new;
push @stale, @$w_stale;
push @tracked, @$w_tracked;
}
elsif ($theirs =~ /\*/ || $ours =~ /\*/) {
print STDERR "Warning: unrecognized mapping in remotes.$name.fetch: $_\n";
}
elsif ($theirs =~ s|^refs/heads/||) {
if (!grep { $_ eq $theirs } @$ls) {
push @stale, $theirs;
}
elsif ($ours ne '') {
push @tracked, $theirs;
}
}
}
return \@new, \@stale, \@tracked;
}
sub show_mapping {
my ($name, $info) = @_;
my ($new, $stale, $tracked) = list_mapping($name, $info);
if (@$new) {
print " New remote branches (next fetch will store in remotes/$name)\n";
print " @$new\n";
}
if (@$stale) {
print " Stale tracking branches in remotes/$name (use 'git remote prune')\n";
print " @$stale\n";
}
if (@$tracked) {
print " Tracked remote branches\n";
print " @$tracked\n";
}
}
sub prune_remote {
my ($name, $ls_remote) = @_;
if (!exists $remote->{$name}) {
print STDERR "No such remote $name\n";
return 1;
}
my $info = $remote->{$name};
update_ls_remote($ls_remote, $info);
my ($new, $stale, $tracked) = list_mapping($name, $info);
my $prefix = "refs/remotes/$name";
foreach my $to_prune (@$stale) {
my @v = $git->command(qw(rev-parse --verify), "$prefix/$to_prune");
$git->command(qw(update-ref -d), "$prefix/$to_prune", $v[0]);
}
return 0;
}
sub show_remote {
my ($name, $ls_remote) = @_;
if (!exists $remote->{$name}) {
print STDERR "No such remote $name\n";
return 1;
}
my $info = $remote->{$name};
update_ls_remote($ls_remote, $info);
print "* remote $name\n";
print " URL: $info->{'URL'}\n";
for my $branchname (sort keys %$branch) {
next unless (defined $branch->{$branchname}{'REMOTE'} &&
$branch->{$branchname}{'REMOTE'} eq $name);
my @merged = map {
s|^refs/heads/||;
$_;
} split(' ',"@{$branch->{$branchname}{'MERGE'}}");
next unless (@merged);
print " Remote branch(es) merged with 'git pull' while on branch $branchname\n";
print " @merged\n";
}
if ($info->{'LS_REMOTE'}) {
show_mapping($name, $info);
}
if ($info->{'PUSH'}) {
my @pushed = map {
s|^refs/heads/||;
s|^\+refs/heads/|+|;
s|:refs/heads/|:|;
$_;
} @{$info->{'PUSH'}};
print " Local branch(es) pushed with 'git push'\n";
print " @pushed\n";
}
return 0;
}
sub add_remote {
my ($name, $url, $opts) = @_;
if (exists $remote->{$name}) {
print STDERR "remote $name already exists.\n";
exit(1);
}
$git->command('config', "remote.$name.url", $url);
my $track = $opts->{'track'} || ["*"];
for (@$track) {
$git->command('config', '--add', "remote.$name.fetch",
$opts->{'mirror'} ?
"+refs/$_:refs/$_" :
"+refs/heads/$_:refs/remotes/$name/$_");
}
if ($opts->{'fetch'}) {
$git->command('fetch', $name);
}
if (exists $opts->{'master'}) {
$git->command('symbolic-ref', "refs/remotes/$name/HEAD",
"refs/remotes/$name/$opts->{'master'}");
}
}
sub update_remote {
my ($name) = @_;
my @remotes;
my $conf = $git->config("remotes." . $name);
if (defined($conf)) {
@remotes = split(' ', $conf);
} elsif ($name eq 'default') {
@remotes = ();
for (sort keys %$remote) {
my $do_fetch = $git->config_bool("remote." . $_ .
".skipDefaultUpdate");
unless ($do_fetch) {
push @remotes, $_;
}
}
} else {
print STDERR "Remote group $name does not exist.\n";
exit(1);
}
for (@remotes) {
print "Updating $_\n";
$git->command('fetch', "$_");
}
}
sub rm_remote {
my ($name) = @_;
if (!exists $remote->{$name}) {
print STDERR "No such remote $name\n";
return 1;
}
$git->command('config', '--remove-section', "remote.$name");
eval {
my @trackers = $git->command('config', '--get-regexp',
'branch.*.remote', $name);
for (@trackers) {
/^branch\.(.*)?\.remote/;
$git->config('--unset', "branch.$1.remote");
$git->config('--unset', "branch.$1.merge");
}
};
my @refs = $git->command('for-each-ref',
'--format=%(refname) %(objectname)', "refs/remotes/$name");
for (@refs) {
my ($ref, $object) = split;
$git->command(qw(update-ref -d), $ref, $object);
}
return 0;
}
sub add_usage {
print STDERR "usage: git remote add [-f] [-t track]* [-m master] <name> <url>\n";
exit(1);
}
my $VERBOSE = 0;
@ARGV = grep {
if ($_ eq '-v' or $_ eq '--verbose') {
$VERBOSE=1;
0
} else {
1
}
} @ARGV;
if (!@ARGV) {
for (sort keys %$remote) {
print "$_";
print "\t$remote->{$_}->{URL}" if $VERBOSE;
print "\n";
}
}
elsif ($ARGV[0] eq 'show') {
my $ls_remote = 1;
my $i;
for ($i = 1; $i < @ARGV; $i++) {
if ($ARGV[$i] eq '-n') {
$ls_remote = 0;
}
else {
last;
}
}
if ($i >= @ARGV) {
print STDERR "usage: git remote show <remote>\n";
exit(1);
}
my $status = 0;
for (; $i < @ARGV; $i++) {
$status |= show_remote($ARGV[$i], $ls_remote);
}
exit($status);
}
elsif ($ARGV[0] eq 'update') {
if (@ARGV <= 1) {
update_remote("default");
exit(1);
}
for (my $i = 1; $i < @ARGV; $i++) {
update_remote($ARGV[$i]);
}
}
elsif ($ARGV[0] eq 'prune') {
my $ls_remote = 1;
my $i;
for ($i = 1; $i < @ARGV; $i++) {
if ($ARGV[$i] eq '-n') {
$ls_remote = 0;
}
else {
last;
}
}
if ($i >= @ARGV) {
print STDERR "usage: git remote prune <remote>\n";
exit(1);
}
my $status = 0;
for (; $i < @ARGV; $i++) {
$status |= prune_remote($ARGV[$i], $ls_remote);
}
exit($status);
}
elsif ($ARGV[0] eq 'add') {
my %opts = ();
while (1 < @ARGV && $ARGV[1] =~ /^-/) {
my $opt = $ARGV[1];
shift @ARGV;
if ($opt eq '-f' || $opt eq '--fetch') {
$opts{'fetch'} = 1;
next;
}
if ($opt eq '-t' || $opt eq '--track') {
if (@ARGV < 1) {
add_usage();
}
$opts{'track'} ||= [];
push @{$opts{'track'}}, $ARGV[1];
shift @ARGV;
next;
}
if ($opt eq '-m' || $opt eq '--master') {
if ((@ARGV < 1) || exists $opts{'master'}) {
add_usage();
}
$opts{'master'} = $ARGV[1];
shift @ARGV;
next;
}
if ($opt eq '--mirror') {
$opts{'mirror'} = 1;
next;
}
add_usage();
}
if (@ARGV != 3) {
add_usage();
}
add_remote($ARGV[1], $ARGV[2], \%opts);
}
elsif ($ARGV[0] eq 'rm') {
if (@ARGV <= 1) {
print STDERR "usage: git remote rm <remote>\n";
exit(1);
}
exit(rm_remote($ARGV[1]));
}
else {
print STDERR "usage: git remote\n";
print STDERR " git remote add <name> <url>\n";
print STDERR " git remote rm <name>\n";
print STDERR " git remote show <name>\n";
print STDERR " git remote prune <name>\n";
print STDERR " git remote update [group]\n";
exit(1);
}
./BlackJoker Mini Shell 1.0