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Teach git-remote add to fetch and track

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This adds three options to 'git-remote add'.

 * -f (or --fetch) option tells it to also run the initial "git
    fetch" using the newly created remote shorthand.

 * -t (or --track) option tells it not to use the default
    wildcard to track all branches.

 * -m (or --master) option tells it to make the
    remote/$name/HEAD point at a remote tracking branch other
    than master.

For example, with this I can say:

  $ git remote add -f -t master -t quick-start -m master \
    jbf-um git://linux-nfs.org/~bfields/git.git/

to

 (1) create remote.jbf-um.url;

 (2) track master and quick-start branches (and no other); the
     two -t options create these two lines:

       fetch = +refs/heads/master:refs/remotes/jbf-um/master
       fetch = +refs/heads/quick-start:refs/remotes/jbf-um/quick-start

 (3) set up remotes/jbf-um/HEAD to point at jbf-um/master so
     that later I can say "git log jbf-um"

Or I could do

  $ git remote add -t 'ap/*' andy /home/andy/git.git

to make Andy's topic branches kept track of under refs/remotes/andy/ap/.

Other possible improvements I considered but haven't implemented
(hint, hint) are:

 * reject wildcard letters other than a trailing '*' to the -t
   parameter;

 * make -m optional and when the first -t parameter does not
   have the trailing '*' default to that value (so the above
   example does not need to say "-m master");

 * if -m is not given, and -t parameter ends with '*' (i.e. the
   above defaulting did not tell us where to point HEAD at), and
   if we did the fetch with -f, check if 'master' was fetched
   and make HEAD point at it.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2007-02-01 23:30:03 -08:00
parent 06e75a7237
commit b6f5da1e0f
1 changed files with 49 additions and 7 deletions
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56
git-remote.perl
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@ -253,14 +253,30 @@ sub show_remote {
}
sub add_remote {
my ($name, $url) = @_;
my ($name, $url, $opts) = @_;
if (exists $remote->{$name}) {
print STDERR "remote $name already exists.\n";
exit(1);
}
$git->command('config', "remote.$name.url", $url);
$git->command('config', "remote.$name.fetch",
"+refs/heads/*:refs/remotes/$name/*");
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) {
@ -307,11 +323,37 @@ elsif ($ARGV[0] eq 'prune') {
}
}
elsif ($ARGV[0] eq 'add') {
if (@ARGV != 3) {
print STDERR "Usage: git remote add <name> <url>\n";
exit(1);
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'} = $ARGV[1];
shift @ARGV;
next;
}
add_usage();
}
add_remote($ARGV[1], $ARGV[2]);
if (@ARGV != 3) {
add_usage();
}
add_remote($ARGV[1], $ARGV[2], \%opts);
}
else {
print STDERR "Usage: git remote\n";