1e592d65b5
This allows users to use the command "git remote update" to update all remotes that are being tracked in the repository. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Junio C Hamano <junkio@cox.net>
378 lines
8.1 KiB
Perl
Executable File
378 lines
8.1 KiB
Perl
Executable File
#!/usr/bin/perl -w
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use Git;
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my $git = Git->repository();
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sub add_remote_config {
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my ($hash, $name, $what, $value) = @_;
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if ($what eq 'url') {
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if (exists $hash->{$name}{'URL'}) {
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print STDERR "Warning: more than one remote.$name.url\n";
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}
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$hash->{$name}{'URL'} = $value;
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}
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elsif ($what eq 'fetch') {
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$hash->{$name}{'FETCH'} ||= [];
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push @{$hash->{$name}{'FETCH'}}, $value;
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}
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if (!exists $hash->{$name}{'SOURCE'}) {
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$hash->{$name}{'SOURCE'} = 'config';
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}
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}
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sub add_remote_remotes {
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my ($hash, $file, $name) = @_;
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if (exists $hash->{$name}) {
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$hash->{$name}{'WARNING'} = 'ignored due to config';
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return;
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}
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my $fh;
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if (!open($fh, '<', $file)) {
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print STDERR "Warning: cannot open $file\n";
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return;
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}
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my $it = { 'SOURCE' => 'remotes' };
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$hash->{$name} = $it;
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while (<$fh>) {
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chomp;
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if (/^URL:\s*(.*)$/) {
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# Having more than one is Ok -- it is used for push.
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if (! exists $it->{'URL'}) {
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$it->{'URL'} = $1;
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}
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}
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elsif (/^Push:\s*(.*)$/) {
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; # later
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}
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elsif (/^Pull:\s*(.*)$/) {
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$it->{'FETCH'} ||= [];
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push @{$it->{'FETCH'}}, $1;
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}
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elsif (/^\#/) {
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; # ignore
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}
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else {
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print STDERR "Warning: funny line in $file: $_\n";
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}
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}
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close($fh);
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}
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sub list_remote {
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my ($git) = @_;
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my %seen = ();
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my @remotes = eval {
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$git->command(qw(config --get-regexp), '^remote\.');
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};
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for (@remotes) {
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if (/^remote\.([^.]*)\.(\S*)\s+(.*)$/) {
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add_remote_config(\%seen, $1, $2, $3);
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}
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}
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my $dir = $git->repo_path() . "/remotes";
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if (opendir(my $dh, $dir)) {
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local $_;
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while ($_ = readdir($dh)) {
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chomp;
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next if (! -f "$dir/$_" || ! -r _);
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add_remote_remotes(\%seen, "$dir/$_", $_);
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}
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}
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return \%seen;
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}
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sub add_branch_config {
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my ($hash, $name, $what, $value) = @_;
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if ($what eq 'remote') {
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if (exists $hash->{$name}{'REMOTE'}) {
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print STDERR "Warning: more than one branch.$name.remote\n";
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}
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$hash->{$name}{'REMOTE'} = $value;
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}
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elsif ($what eq 'merge') {
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$hash->{$name}{'MERGE'} ||= [];
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push @{$hash->{$name}{'MERGE'}}, $value;
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}
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}
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sub list_branch {
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my ($git) = @_;
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my %seen = ();
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my @branches = eval {
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$git->command(qw(config --get-regexp), '^branch\.');
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};
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for (@branches) {
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if (/^branch\.([^.]*)\.(\S*)\s+(.*)$/) {
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add_branch_config(\%seen, $1, $2, $3);
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}
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}
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return \%seen;
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}
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my $remote = list_remote($git);
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my $branch = list_branch($git);
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sub update_ls_remote {
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my ($harder, $info) = @_;
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return if (($harder == 0) ||
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(($harder == 1) && exists $info->{'LS_REMOTE'}));
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my @ref = map {
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s|^[0-9a-f]{40}\s+refs/heads/||;
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$_;
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} $git->command(qw(ls-remote --heads), $info->{'URL'});
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$info->{'LS_REMOTE'} = \@ref;
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}
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sub list_wildcard_mapping {
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my ($forced, $ours, $ls) = @_;
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my %refs;
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for (@$ls) {
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$refs{$_} = 01; # bit #0 to say "they have"
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}
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for ($git->command('for-each-ref', "refs/remotes/$ours")) {
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chomp;
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next unless (s|^[0-9a-f]{40}\s[a-z]+\srefs/remotes/$ours/||);
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next if ($_ eq 'HEAD');
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$refs{$_} ||= 0;
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$refs{$_} |= 02; # bit #1 to say "we have"
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}
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my (@new, @stale, @tracked);
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for (sort keys %refs) {
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my $have = $refs{$_};
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if ($have == 1) {
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push @new, $_;
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}
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elsif ($have == 2) {
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push @stale, $_;
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}
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elsif ($have == 3) {
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push @tracked, $_;
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}
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}
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return \@new, \@stale, \@tracked;
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}
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sub list_mapping {
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my ($name, $info) = @_;
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my $fetch = $info->{'FETCH'};
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my $ls = $info->{'LS_REMOTE'};
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my (@new, @stale, @tracked);
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for (@$fetch) {
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next unless (/(\+)?([^:]+):(.*)/);
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my ($forced, $theirs, $ours) = ($1, $2, $3);
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if ($theirs eq 'refs/heads/*' &&
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$ours =~ /^refs\/remotes\/(.*)\/\*$/) {
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# wildcard mapping
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my ($w_new, $w_stale, $w_tracked)
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= list_wildcard_mapping($forced, $1, $ls);
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push @new, @$w_new;
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push @stale, @$w_stale;
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push @tracked, @$w_tracked;
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}
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elsif ($theirs =~ /\*/ || $ours =~ /\*/) {
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print STDERR "Warning: unrecognized mapping in remotes.$name.fetch: $_\n";
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}
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elsif ($theirs =~ s|^refs/heads/||) {
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if (!grep { $_ eq $theirs } @$ls) {
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push @stale, $theirs;
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}
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elsif ($ours ne '') {
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push @tracked, $theirs;
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}
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}
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}
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return \@new, \@stale, \@tracked;
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}
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sub show_mapping {
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my ($name, $info) = @_;
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my ($new, $stale, $tracked) = list_mapping($name, $info);
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if (@$new) {
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print " New remote branches (next fetch will store in remotes/$name)\n";
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print " @$new\n";
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}
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if (@$stale) {
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print " Stale tracking branches in remotes/$name (use 'git remote prune')\n";
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print " @$stale\n";
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}
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if (@$tracked) {
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print " Tracked remote branches\n";
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print " @$tracked\n";
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}
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}
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sub prune_remote {
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my ($name, $ls_remote) = @_;
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if (!exists $remote->{$name}) {
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print STDERR "No such remote $name\n";
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return;
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}
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my $info = $remote->{$name};
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update_ls_remote($ls_remote, $info);
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my ($new, $stale, $tracked) = list_mapping($name, $info);
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my $prefix = "refs/remotes/$name";
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foreach my $to_prune (@$stale) {
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my @v = $git->command(qw(rev-parse --verify), "$prefix/$to_prune");
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$git->command(qw(update-ref -d), "$prefix/$to_prune", $v[0]);
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}
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}
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sub show_remote {
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my ($name, $ls_remote) = @_;
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if (!exists $remote->{$name}) {
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print STDERR "No such remote $name\n";
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return;
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}
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my $info = $remote->{$name};
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update_ls_remote($ls_remote, $info);
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print "* remote $name\n";
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print " URL: $info->{'URL'}\n";
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for my $branchname (sort keys %$branch) {
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next if ($branch->{$branchname}{'REMOTE'} ne $name);
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my @merged = map {
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s|^refs/heads/||;
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$_;
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} split(' ',"@{$branch->{$branchname}{'MERGE'}}");
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next unless (@merged);
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print " Remote branch(es) merged with 'git pull' while on branch $branchname\n";
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print " @merged\n";
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}
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if ($info->{'LS_REMOTE'}) {
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show_mapping($name, $info);
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}
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}
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sub add_remote {
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my ($name, $url, $opts) = @_;
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if (exists $remote->{$name}) {
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print STDERR "remote $name already exists.\n";
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exit(1);
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}
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$git->command('config', "remote.$name.url", $url);
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my $track = $opts->{'track'} || ["*"];
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for (@$track) {
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$git->command('config', '--add', "remote.$name.fetch",
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"+refs/heads/$_:refs/remotes/$name/$_");
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}
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if ($opts->{'fetch'}) {
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$git->command('fetch', $name);
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}
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if (exists $opts->{'master'}) {
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$git->command('symbolic-ref', "refs/remotes/$name/HEAD",
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"refs/remotes/$name/$opts->{'master'}");
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}
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}
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sub add_usage {
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print STDERR "Usage: git remote add [-f] [-t track]* [-m master] <name> <url>\n";
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exit(1);
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}
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if (!@ARGV) {
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for (sort keys %$remote) {
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print "$_\n";
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}
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}
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elsif ($ARGV[0] eq 'show') {
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my $ls_remote = 1;
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my $i;
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for ($i = 1; $i < @ARGV; $i++) {
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if ($ARGV[$i] eq '-n') {
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$ls_remote = 0;
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}
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else {
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last;
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}
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}
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if ($i >= @ARGV) {
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print STDERR "Usage: git remote show <remote>\n";
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exit(1);
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}
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for (; $i < @ARGV; $i++) {
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show_remote($ARGV[$i], $ls_remote);
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}
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}
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elsif ($ARGV[0] eq 'update') {
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my $conf = $git->config("remote.fetch");
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if (defined($conf)) {
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@remotes = split(' ', $conf);
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} else {
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@remotes = sort keys %$remote;
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}
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for (@remotes) {
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print "Fetching $_\n";
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$git->command('fetch', "$_");
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}
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}
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elsif ($ARGV[0] eq 'prune') {
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my $ls_remote = 1;
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my $i;
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for ($i = 1; $i < @ARGV; $i++) {
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if ($ARGV[$i] eq '-n') {
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$ls_remote = 0;
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}
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else {
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last;
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}
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}
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if ($i >= @ARGV) {
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print STDERR "Usage: git remote prune <remote>\n";
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exit(1);
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}
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for (; $i < @ARGV; $i++) {
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prune_remote($ARGV[$i], $ls_remote);
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}
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}
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elsif ($ARGV[0] eq 'add') {
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my %opts = ();
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while (1 < @ARGV && $ARGV[1] =~ /^-/) {
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my $opt = $ARGV[1];
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shift @ARGV;
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if ($opt eq '-f' || $opt eq '--fetch') {
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$opts{'fetch'} = 1;
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next;
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}
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if ($opt eq '-t' || $opt eq '--track') {
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if (@ARGV < 1) {
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add_usage();
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}
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$opts{'track'} ||= [];
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push @{$opts{'track'}}, $ARGV[1];
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shift @ARGV;
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next;
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}
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if ($opt eq '-m' || $opt eq '--master') {
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if ((@ARGV < 1) || exists $opts{'master'}) {
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add_usage();
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}
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$opts{'master'} = $ARGV[1];
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shift @ARGV;
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next;
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}
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add_usage();
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}
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if (@ARGV != 3) {
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add_usage();
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}
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add_remote($ARGV[1], $ARGV[2], \%opts);
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}
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else {
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print STDERR "Usage: git remote\n";
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print STDERR " git remote add <name> <url>\n";
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print STDERR " git remote show <name>\n";
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print STDERR " git remote prune <name>\n";
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print STDERR " git remote update\n";
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exit(1);
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}
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