X-Git-Url: https://git.madduck.net/code/myrepos.git/blobdiff_plain/9d693e74ae191dd8ba452ee5319c5cf6a59e1e9a..4f6dbb4fb3f744397618026f52b605eeb395e91d:/mr

diff --git a/mr b/mr
index 66b88ff..8cfe013 100755
--- a/mr
+++ b/mr
@@ -152,16 +152,24 @@ Be verbose.
 Expand the statistics line displayed at the end to include information
 about exactly which repositories failed and were skipped, if any.
 
-=item -n
+=item -n [number]
 
-Just operate on the repository for the current directory, do not 
-recurse into deeper repositories.
+If no number if specified, just operate on the repository for the current
+directory, do not recurse into deeper repositories.
 
-=item -j number
+If a number is specified, will recurse into repositories at most that many
+subdirectories deep. For example, with -n 2 it would recurse into ./src/foo,
+but not ./src/packages/bar.
 
-Run the specified number of jobs in parallel. This can greatly speed up
-operations such as updates. It is not recommended for interactive
-operations.
+=item -j [number]
+
+Run the specified number of jobs in parallel, or an unlimited number of jobs
+with no number specified. This can greatly speed up operations such as updates.
+It is not recommended for interactive operations.
+
+Note that running more than 10 jobs at a time is likely to run afoul of
+ssh connection limits. Running between 3 and 5 jobs at a time will yeild
+a good speedup in updates without loading the machine too much.
 
 =back
 
@@ -309,7 +317,7 @@ use constant {
 my $config_overridden=0;
 my $verbose=0;
 my $stats=0;
-my $no_recurse=0;
+my $max_depth;
 my $no_chdir=0;
 my $jobs=1;
 my $directory=getcwd();
@@ -324,9 +332,14 @@ my (@ok, @failed, @skipped);
 
 main();
 
+my %rcs;
 sub rcs_test { #{{{
 	my ($action, $dir, $topdir, $subdir) = @_;
 
+	if (exists $rcs{$dir}) {
+		return $rcs{$dir};
+	}
+
 	my $test="set -e\n";
 	foreach my $rcs_test (
 			sort {
@@ -350,10 +363,10 @@ sub rcs_test { #{{{
 		return undef;
 	}
 	if (! length $rcs) {
-		return undef;
+		return $rcs{$dir}=undef;
 	}
 	else {
-		return $rcs;
+		return $rcs{$dir}=$rcs;
 	}
 } #}}}
 	
@@ -443,7 +456,7 @@ sub action { #{{{
 			return FAILED;
 		}
 		else {
-			print STDERR "mr $action: no defined $action command for $rcs repository $topdir$subdir, skipping\n";
+			print STDERR "mr $action: no defined action for $rcs repository $topdir$subdir, skipping\n";
 			return SKIPPED;
 		}
 	}
@@ -501,7 +514,7 @@ sub mrs { #{{{
 	my @out;
 	my $running=0;
 	while (@fhs or @repos) {
-		while ($running < $jobs && @repos) {
+		while ((!$jobs || $running < $jobs) && @repos) {
 			$running++;
 			my $repo = shift @repos;
 			pipe(my $outfh, CHILD_STDOUT);
@@ -646,8 +659,13 @@ sub selectrepos { #{{{
 		my $d=$directory;
 		$dir.="/" unless $dir=~/\/$/;
 		$d.="/" unless $d=~/\/$/;
-		next if $no_recurse && $d ne $dir;
 		next if $dir ne $d && $dir !~ /^\Q$d\E/;
+		if (defined $max_depth) {
+			my @a=split('/', $dir);
+			my @b=split('/', $d);
+			do { } while (@a && @b && shift(@a) eq shift(@b));
+			next if @a > $max_depth || @b > $max_depth;
+		}
 		push @repos, [$dir, $topdir, $subdir];
 	}
 	if (! @repos) {
@@ -914,7 +932,7 @@ sub dispatch { #{{{
 		register(@ARGV);
 	}
 
-	if ($jobs > 1) {
+	if (!$jobs || $jobs > 1) {
 		mrs($action, selectrepos());
 	}
 	else {
@@ -1037,8 +1055,8 @@ sub getopts { #{{{
 		"c|config=s" => sub { $ENV{MR_CONFIG}=$_[1]; $config_overridden=1 },
 		"v|verbose" => \$verbose,
 		"s|stats" => \$stats,
-		"n|no-recurse" => \$no_recurse,
-		"j|jobs=i" => \$jobs,
+		"n|no-recurse:i" => \$max_depth,
+		"j|jobs:i" => \$jobs,
 	);
 	if (! $result || @ARGV < 1) {
 		die("Usage: mr [-d directory] action [params ...]\n".