summaryrefslogtreecommitdiff
path: root/git-remote.perl
diff options
context:
space:
mode:
Diffstat (limited to 'git-remote.perl')
-rwxr-xr-xgit-remote.perl364
1 files changed, 364 insertions, 0 deletions
diff --git a/git-remote.perl b/git-remote.perl
new file mode 100755
index 0000000000..670bafb6d0
--- /dev/null
+++ b/git-remote.perl
@@ -0,0 +1,364 @@
+#!/usr/bin/perl -w
+
+use Git;
+my $git = Git->repository();
+
+sub add_remote_config {
+ my ($hash, $name, $what, $value) = @_;
+ if ($what eq 'url') {
+ if (exists $hash->{$name}{'URL'}) {
+ print STDERR "Warning: more than one remote.$name.url\n";
+ }
+ $hash->{$name}{'URL'} = $value;
+ }
+ elsif ($what eq 'fetch') {
+ $hash->{$name}{'FETCH'} ||= [];
+ push @{$hash->{$name}{'FETCH'}}, $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'} = $1;
+ }
+ }
+ elsif (/^Push:\s*(.*)$/) {
+ ; # later
+ }
+ 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|^[0-9a-f]{40}\s+refs/heads/||;
+ $_;
+ } $git->command(qw(ls-remote --heads), $info->{'URL'});
+ $info->{'LS_REMOTE'} = \@ref;
+}
+
+sub list_wildcard_mapping {
+ my ($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;
+ }
+ 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", $v[0]);
+ }
+}
+
+sub show_remote {
+ my ($name, $ls_remote) = @_;
+ if (!exists $remote->{$name}) {
+ print STDERR "No such remote $name\n";
+ return;
+ }
+ 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 if ($branch->{$branchname}{'REMOTE'} ne $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, $info);
+ }
+}
+
+sub add_remote {
+ my ($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",
+ "+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 add_usage {
+ print STDERR "Usage: git remote add [-f] [-t track]* [-m master] <name> <url>\n";
+ exit(1);
+}
+
+if (!@ARGV) {
+ for (sort keys %$remote) {
+ print "$_\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);
+ }
+ for (; $i < @ARGV; $i++) {
+ show_remote($ARGV[$i], $ls_remote);
+ }
+}
+elsif ($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);
+ }
+ for (; $i < @ARGV; $i++) {
+ prune_remote($ARGV[$i], $ls_remote);
+ }
+}
+elsif ($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'} = $ARGV[1];
+ shift @ARGV;
+ next;
+ }
+ add_usage();
+ }
+ if (@ARGV != 3) {
+ add_usage();
+ }
+ add_remote($ARGV[1], $ARGV[2], \%opts);
+}
+else {
+ print STDERR "Usage: git remote\n";
+ print STDERR " git remote add <name> <url>\n";
+ print STDERR " git remote show <name>\n";
+ print STDERR " git remote prune <name>\n";
+ exit(1);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 15:54:42 +0000