]> git.madduck.net Git - code/myrepos.git/blobdiff - mr

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

on second thought, this is a better test
[code/myrepos.git] / mr
diff --git a/mr b/mr
index 4630f06898eb23fcdbd49dde3cc78ffeaf70863e..433354bc4f742620da2aaf057811579f1667b00e 100755 (executable)
--- a/mr
+++ b/mr
@@ -28,11 +28,11 @@ B<mr> [options] action [params ...]
 
 =head1 DESCRIPTION
 
-B<mr> is a Multiple Repository management tool. It
-can checkout, update, or perform other actions on
-a set of repositories as if they were one combined respository. It
-supports any combination of subversion, git, cvs, and bzr repositories, 
-and support for other revision control systems can easily be added.
+B<mr> is a Multiple Repository management tool. It can checkout, update, or
+perform other actions on a set of repositories as if they were one combined
+respository. It supports any combination of subversion, git, cvs, mecurial and
+bzr repositories, and support for other revision control systems can easily be
+added.
 
 B<mr> cds into and operates on all registered repositories at or below your
 working directory. Or, if you are in a subdirectory of a repository that
@@ -108,6 +108,10 @@ To show the command that mr uses to update the repository in src/foo:
 
   mr config src/foo update
 
+To see the built-in library of shell functions contained in mr:
+
+  mr config DEFAULT lib
+
 The ~/.mrconfig file is used by default. To use a different config file,
 use the -c option.
 
@@ -153,6 +157,12 @@ about exactly which repositories failed and were skipped, if any.
 Just operate on the repository for the current directory, do not 
 recurse into deeper repositories.
 
+=item -j number
+
+Run the specified number of jobs in parallel. This can greatly speed up
+operations such as updates. It is not recommended for interactive
+operations.
+
 =back
 
 =head1 FILES
@@ -251,6 +261,13 @@ use warnings;
 use strict;
 use Getopt::Long;
 use Cwd qw(getcwd abs_path);
+use POSIX "WNOHANG";
+use constant {
+       OK => 0,
+       FAILED => 1,
+       SKIPPED => 2,
+       ABORT => 3,
+};
 
 $SIG{INT}=sub {
        print STDERR "mr: interrupted\n";
@@ -263,6 +280,7 @@ my $directory=getcwd();
 my $verbose=0;
 my $stats=0;
 my $no_recurse=0;
+my $jobs=1;
 my %config;
 my %configfiles;
 my %knownactions;
@@ -275,6 +293,7 @@ my $result=GetOptions(
        "v|verbose" => \$verbose,
        "s|stats" => \$stats,
        "n|no-recurse" => \$no_recurse,
+       "j|jobs=i" => \$jobs,
 );
 if (! $result || @ARGV < 1) {
        die("Usage: mr [-d directory] action [params ...]\n".
@@ -288,17 +307,17 @@ if (! $result || @ARGV < 1) {
 if ($ENV{MR_CONFIG} !~ /^\//) {
        $ENV{MR_CONFIG}=getcwd()."/".$ENV{MR_CONFIG};
 }
+# Try to set MR_PATH to the path to the program.
+eval {
+       use FindBin qw($Bin $Script);
+       $ENV{MR_PATH}=$Bin."/".$Script;
+};
 
 loadconfig(\*DATA);
 loadconfig($ENV{MR_CONFIG});
 #use Data::Dumper;
 #print Dumper(\%config);
 
-eval {
-       use FindBin qw($Bin $Script);
-       $ENV{MR_PATH}=$Bin."/".$Script;
-};
-
 # alias expansion and command stemming
 my $action=shift @ARGV;
 if (exists $alias{$action}) {
@@ -414,10 +433,40 @@ if (! @repos) {
        $nochdir=1;
 }
 
-my (@failed, @ok, @skipped);
-foreach my $repo (@repos) {
-       action($action, @$repo);
+# run the action on each repository and print stats
+my (@ok, @failed, @skipped);
+if ($jobs > 1) {
+       mrs(@repos);
+}
+else {
+       foreach my $repo (@repos) {
+               record($repo, action($action, @$repo));
+               print "\n";
+       }
+}
+if (! @ok && ! @failed && ! @skipped) {
+       die "mr $action: no repositories found to work on\n";
+}
+print "mr $action: finished (".join("; ",
+       showstat($#ok+1, "ok", "ok"),
+       showstat($#failed+1, "failed", "failed"),
+       showstat($#skipped+1, "skipped", "skipped"),
+).")\n";
+if ($stats) {
+       if (@skipped) {
+               print "mr $action: (skipped: ".join(" ", @skipped).")\n";
+       }
+       if (@failed) {
+               print STDERR "mr $action: (failed: ".join(" ", @failed).")\n";
+       }
 }
+if (@failed) {
+       exit 1;
+}
+elsif (! @ok && @skipped) {
+       exit 1;
+}
+exit 0;
 
 sub action { #{{{
        my ($action, $dir, $topdir, $subdir) = @_;
@@ -429,18 +478,17 @@ sub action { #{{{
        if ($action eq 'checkout') {
                if (-d $dir) {
                        print "mr $action: $dir already exists, skipping checkout\n" if $verbose;
-                       push @skipped, $dir;
-                       return;
+                       return SKIPPED;
                }
 
                $dir=~s/^(.*)\/[^\/]+\/?$/$1/;
 
                if (! -d $dir) {
                        print "mr $action: creating parent directory $dir\n" if $verbose;
-                       my $ret=system("mkdir", "-p", $dir);
+                       system("mkdir", "-p", $dir);
                }
        }
-       elsif ($action eq 'update') {
+       elsif ($action =~ /update/) {
                if (! -d $dir) {
                        return action("checkout", $dir, $topdir, $subdir);
                }
@@ -456,27 +504,26 @@ sub action { #{{{
                if ($ret != 0) {
                        if (($? & 127) == 2) {
                                print STDERR "mr $action: interrupted\n";
-                               exit 2;
+                               return ABORT;
                        }
                        elsif ($? & 127) {
                                print STDERR "mr $action: skip test received signal ".($? & 127)."\n";
-                               exit 1;
+                               return ABORT;
                        }
                }
                if ($ret >> 8 == 0) {
                        print "mr $action: $dir skipped per config file\n" if $verbose;
-                       push @skipped, $dir;
-                       return;
+                       return SKIPPED;
                }
        }
        
        if (! $nochdir && ! chdir($dir)) {
                print STDERR "mr $action: failed to chdir to $dir: $!\n";
-               push @failed, $dir;
+               return FAILED;
        }
        elsif (! exists $config{$topdir}{$subdir}{$action}) {
                print STDERR "mr $action: no defined $action command for $topdir$subdir, skipping\n";
-               push @skipped, $dir;
+               return SKIPPED;
        }
        else {
                if (! $nochdir) {
@@ -493,31 +540,118 @@ sub action { #{{{
                if ($ret != 0) {
                        if (($? & 127) == 2) {
                                print STDERR "mr $action: interrupted\n";
-                               exit 2;
+                               return ABORT;
                        }
                        elsif ($? & 127) {
                                print STDERR "mr $action: received signal ".($? & 127)."\n";
+                               return ABORT;
                        }
                        print STDERR "mr $action: failed ($ret)\n" if $verbose;
-                       push @failed, $dir;
                        if ($ret >> 8 != 0) {
                                print STDERR "mr $action: command failed\n";
                        }
                        elsif ($ret != 0) {
                                print STDERR "mr $action: command died ($ret)\n";
                        }
+                       return FAILED;
                }
                else {
                        if ($action eq 'checkout' && ! -d $dir) {
                                print STDERR "mr $action: $dir missing after checkout\n";;
-                               push @failed, $dir;
-                               return;
+                               return FAILED;
                        }
 
-                       push @ok, $dir;
+                       return OK;
+               }
+       }
+} #}}}
+
+# run actions on multiple repos, in parallel
+sub mrs { #{{{
+       $| = 1;
+       my @active;
+       my @fhs;
+       my @out;
+       my $running=0;
+       while (@fhs or @repos) {
+               while ($running < $jobs && @repos) {
+                       $running++;
+                       my $repo = shift @repos;
+                       pipe(my $outfh, CHILD_STDOUT);
+                       pipe(my $errfh, CHILD_STDERR);
+                       my $pid;
+                       unless ($pid = fork) {
+                               die "mr $action: cannot fork: $!" unless defined $pid;
+                               open(STDOUT, ">&CHILD_STDOUT") || die "mr $action cannot reopen stdout: $!";
+                               open(STDERR, ">&CHILD_STDERR") || die "mr $action cannot reopen stderr: $!";
+                               close CHILD_STDOUT;
+                               close CHILD_STDERR;
+                               close $outfh;
+                               close $errfh;
+                               exit action($action, @$repo);
+                       }
+                       close CHILD_STDOUT;
+                       close CHILD_STDERR;
+                       push @active, [$pid, $repo];
+                       push @fhs, [$outfh, $errfh];
+                       push @out, ['',     ''];
+               }
+               my ($rin, $rout) = ('','');
+               my $nfound;
+               foreach my $fh (@fhs) {
+                       next unless defined $fh;
+                       vec($rin, fileno($fh->[0]), 1) = 1 if defined $fh->[0];
+                       vec($rin, fileno($fh->[1]), 1) = 1 if defined $fh->[1];
+               }
+               $nfound = select($rout=$rin, undef, undef, 1);
+               foreach my $channel (0, 1) {
+                       foreach my $i (0..$#fhs) {
+                               next unless defined $fhs[$i];
+                               my $fh = $fhs[$i][$channel];
+                               next unless defined $fh;
+                               if (vec($rout, fileno($fh), 1) == 1) {
+                                       my $r = '';
+                                       if (sysread($fh, $r, 1024) == 0) {
+                                               close($fh);
+                                               $fhs[$i][$channel] = undef;
+                                               if (! defined $fhs[$i][0] &&
+                                                   ! defined $fhs[$i][1]) {
+                                                       waitpid($active[$i][0], 0);
+                                                       print STDOUT $out[$i][0];
+                                                       print STDERR $out[$i][1];
+                                                       print "\n";
+                                                       record($active[$i][1], $? >> 8);
+                                                       splice(@fhs, $i, 1);
+                                                       splice(@active, $i, 1);
+                                                       splice(@out, $i, 1);
+                                                       $running--;
+                                               }
+                                       }
+                                       $out[$i][$channel] .= $r;
+                               }
+                       }
                }
+       }
+} #}}}
 
-               print "\n";
+sub record { #{{{
+       my $dir=shift()->[0];
+       my $ret=shift;
+
+       if ($ret == OK) {
+               push @ok, $dir;
+       }
+       elsif ($ret == FAILED) {
+               push @failed, $dir;
+       }
+       elsif ($ret == SKIPPED) {
+               push @skipped, $dir;
+       }
+       elsif ($ret == ABORT) {
+               exit 1;
+       }
+       else {
+               die "unknown exit status $ret";
        }
 } #}}}
 
@@ -530,29 +664,6 @@ sub showstat { #{{{
        }
        return;
 } #}}}
-if (! @ok && ! @failed && ! @skipped) {
-       die "mr $action: no repositories found to work on\n";
-}
-print "mr $action: finished (".join("; ",
-       showstat($#ok+1, "ok", "ok"),
-       showstat($#failed+1, "failed", "failed"),
-       showstat($#skipped+1, "skipped", "skipped"),
-).")\n";
-if ($stats) {
-       if (@skipped) {
-               print "mr $action: (skipped: ".join(" ", @skipped).")\n";
-       }
-       if (@failed) {
-               print STDERR "mr $action: (failed: ".join(" ", @failed).")\n";
-       }
-}
-if (@failed) {
-       exit 1;
-}
-elsif (! @ok && @skipped) {
-       exit 1;
-}
-exit 0;
 
 my %loaded;
 sub loadconfig { #{{{
@@ -788,7 +899,7 @@ lib =
                exit 1
        }
        hours_since() {
-               for dir in .git .svn .bzr CVS; do
+               for dir in .git .svn .bzr CVS .hg; do
                        if [ -e "$MR_REPO/$dir" ]; then
                                flagfile="$MR_REPO/$dir/.mr_last$1"
                                break
@@ -805,11 +916,17 @@ update =
        if [ -d "$MR_REPO"/.svn ]; then
                svn update "$@"
        elif [ -d "$MR_REPO"/.git ]; then
-               git pull origin master "$@"
+               if [ -z "$@" ]; then
+                       git pull -t origin master
+               else
+                       git pull "$@"
+               fi
        elif [ -d "$MR_REPO"/.bzr ]; then
                bzr merge "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs update "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg pull "$@" && hg update "$@"
        else
                error "unknown repo type"
        fi
@@ -822,6 +939,8 @@ status =
                bzr status "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs status "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg status "$@"
        else
                error "unknown repo type"
        fi
@@ -834,6 +953,8 @@ commit =
                bzr commit "$@" && bzr push
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs commit "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg commit -m "$@" && hg push
        else
                error "unknown repo type"
        fi
@@ -846,6 +967,8 @@ diff =
                bzr diff "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs diff "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg diff "$@"
        else
                error "unknown repo type"
        fi
@@ -858,6 +981,8 @@ log =
                bzr log "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs log "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg log "$@"
        else
                error "unknown repo type"
        fi
@@ -896,6 +1021,11 @@ register =
                echo "Registering cvs repository $repo at root $root"
                mr -c "$MR_CONFIG" config "$(pwd)" \
                        checkout="cvs -d '$root' co -d $basedir $repo"
+       elif [ -d .hg ]; then
+               url=$(hg showconfig paths.default)
+               echo "Registering mercurial repo url: $url in $MR_CONFIG"
+               mr -c "$MR_CONFIG" config "$(pwd)" \
+                       checkout="hg clone $url $basedir"
        else
                error "unable to register this repo type"
        fi