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-j bugfixes
[code/myrepos.git] / mr
diff --git a/mr b/mr
index 80ccc78eef899c9388787665d574ef478253224e..1b66d82f484995a92786d328ba14e1013a8f784f 100755 (executable)
--- a/mr
+++ b/mr
@@ -22,17 +22,17 @@ B<mr> [options] log
 
 B<mr> [options] register [repository]
 
 
 B<mr> [options] register [repository]
 
-B<mr> [options] config section [parameter=[value] ...]
+B<mr> [options] config section ["parameter=[value]" ...]
 
 B<mr> [options] action [params ...]
 
 =head1 DESCRIPTION
 
 
 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
 
 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
 
 
   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.
 
 The ~/.mrconfig file is used by default. To use a different config file,
 use the -c option.
 
@@ -153,6 +157,14 @@ 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.
 
 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.
+
+Note that in -j mode, all output of the jobs goes to standard output, even
+output that would normally go to standard error.
+
 =back
 
 =head1 FILES
 =back
 
 =head1 FILES
@@ -188,9 +200,9 @@ that contains the mrconfig file, but you can also choose to use absolute
 paths.
 
 Within a section, each parameter defines a shell command to run to handle a
 paths.
 
 Within a section, each parameter defines a shell command to run to handle a
-given action. mr contains default handlers for the "update", "status", and
-"commit" actions, so normally you only need to specify what to do for
-"checkout".
+given action. mr contains default handlers for "update", "status",
+"commit", and other standard actions. Normally you only need to specify what
+to do for "checkout".
 
 Note that these shell commands are run in a "set -e" shell
 environment, where any additional parameters you pass are available in
 
 Note that these shell commands are run in a "set -e" shell
 environment, where any additional parameters you pass are available in
@@ -227,14 +239,6 @@ If the "chain" parameter is set and its command returns true, then B<mr>
 will try to load a .mrconfig file from the root of the repository. (You
 should avoid chaining from repositories with untrusted committers.)
 
 will try to load a .mrconfig file from the root of the repository. (You
 should avoid chaining from repositories with untrusted committers.)
 
-=item deleted
-
-If the "deleted" parameter is set and its command returns true, then
-B<mr> will treat the repository as deleted. It won't ever actually delete
-the repository, but it will warn if it sees the repository's directory.
-This is useful when one mrconfig file is shared amoung multiple machines,
-to keep track of and remember to delete old repositories.
-
 =item lib
 
 The "lib" parameter can specify some shell code that will be run before each
 =item lib
 
 The "lib" parameter can specify some shell code that will be run before each
@@ -259,6 +263,13 @@ use warnings;
 use strict;
 use Getopt::Long;
 use Cwd qw(getcwd abs_path);
 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";
 
 $SIG{INT}=sub {
        print STDERR "mr: interrupted\n";
@@ -271,6 +282,7 @@ my $directory=getcwd();
 my $verbose=0;
 my $stats=0;
 my $no_recurse=0;
 my $verbose=0;
 my $stats=0;
 my $no_recurse=0;
+my $jobs=1;
 my %config;
 my %configfiles;
 my %knownactions;
 my %config;
 my %configfiles;
 my %knownactions;
@@ -283,6 +295,7 @@ my $result=GetOptions(
        "v|verbose" => \$verbose,
        "s|stats" => \$stats,
        "n|no-recurse" => \$no_recurse,
        "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".
 );
 if (! $result || @ARGV < 1) {
        die("Usage: mr [-d directory] action [params ...]\n".
@@ -296,17 +309,17 @@ if (! $result || @ARGV < 1) {
 if ($ENV{MR_CONFIG} !~ /^\//) {
        $ENV{MR_CONFIG}=getcwd()."/".$ENV{MR_CONFIG};
 }
 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);
 
 
 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}) {
 # alias expansion and command stemming
 my $action=shift @ARGV;
 if (exists $alias{$action}) {
@@ -358,6 +371,7 @@ elsif ($action eq 'config') {
                                    exists $config{$topdir}{$section}{$_}) {
                                        print $config{$topdir}{$section}{$_}."\n";
                                        $found=1;
                                    exists $config{$topdir}{$section}{$_}) {
                                        print $config{$topdir}{$section}{$_}."\n";
                                        $found=1;
+                                       last if $section eq 'DEFAULT';
                                }
                        }
                        if (! $found) {
                                }
                        }
                        if (! $found) {
@@ -421,10 +435,39 @@ if (! @repos) {
        $nochdir=1;
 }
 
        $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));
+       }
+}
+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) = @_;
 
 sub action { #{{{
        my ($action, $dir, $topdir, $subdir) = @_;
@@ -433,45 +476,17 @@ sub action { #{{{
        my $lib=exists $config{$topdir}{$subdir}{lib} ?
                       $config{$topdir}{$subdir}{lib}."\n" : "";
 
        my $lib=exists $config{$topdir}{$subdir}{lib} ?
                       $config{$topdir}{$subdir}{lib}."\n" : "";
 
-       if (exists $config{$topdir}{$subdir}{deleted}) {
-               my $test="set -e;".$lib.$config{$topdir}{$subdir}{deleted};
-               print "mr $action: running deleted test >>$test<<\n" if $verbose;
-               my $ret=system($test);
-               if ($ret != 0) {
-                       if (($? & 127) == 2) {
-                               print STDERR "mr $action: interrupted\n";
-                               exit 2;
-                       }
-                       elsif ($? & 127) {
-                               print STDERR "mr $action: deleted test received signal ".($? & 127)."\n";
-                       }
-               }
-               if ($ret >> 8 == 0) {
-                       if (-d $dir) {
-                               print STDERR "mr error: $dir should be deleted yet still exists\n\n";
-                               push @failed, $dir;
-                               return;
-                       }
-                       else {
-                               print "mr $action: $dir skipped (as deleted) per config file\n" if $verbose;
-                               push @skipped, $dir;
-                               return;
-                       }
-               }
-       }
-
        if ($action eq 'checkout') {
                if (-d $dir) {
                        print "mr $action: $dir already exists, skipping checkout\n" if $verbose;
        if ($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;
                }
 
                $dir=~s/^(.*)\/[^\/]+\/?$/$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 ($action eq 'update') {
@@ -490,27 +505,26 @@ sub action { #{{{
                if ($ret != 0) {
                        if (($? & 127) == 2) {
                                print STDERR "mr $action: interrupted\n";
                if ($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";
                        }
                        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 $verbose;
                        }
                }
                if ($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";
                }
        }
        
        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";
        }
        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) {
        }
        else {
                if (! $nochdir) {
@@ -524,34 +538,105 @@ sub action { #{{{
                        join(" ", map { s/\//\/\//g; s/"/\"/g; '"'.$_.'"' } @ARGV);
                print STDERR "mr $action: running >>$command<<\n" if $verbose;
                my $ret=system($command);
                        join(" ", map { s/\//\/\//g; s/"/\"/g; '"'.$_.'"' } @ARGV);
                print STDERR "mr $action: running >>$command<<\n" if $verbose;
                my $ret=system($command);
+               print "\n";
                if ($ret != 0) {
                        if (($? & 127) == 2) {
                                print STDERR "mr $action: interrupted\n";
                if ($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";
                        }
                        elsif ($? & 127) {
                                print STDERR "mr $action: received signal ".($? & 127)."\n";
+                               return ABORT;
                        }
                        print STDERR "mr $action: failed ($ret)\n" if $verbose;
                        }
                        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";
                        }
                        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: $dir missing after checkout\n";;
                }
                else {
                        if ($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;
                }
                }
+       }
+} #}}}
 
 
-               print "\n";
+# 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;
+                       my $pid = open(my $fh, "-|");
+                       if (! $pid) {
+                               open(STDERR, ">&STDOUT");
+                               exit action($action, @$repo);
+                       }
+                       push @active, $repo;
+                       push @fhs, $fh;
+                       push @out, "";
+               }
+               my ($rin, $rout) = ('','', '');
+               my $nfound;
+               foreach my $x (@fhs) {
+                       next unless defined $x;
+                       vec($rin, fileno($x), 1) = 1;
+               }
+               $nfound = select($rout=$rin, undef, undef, 1);
+               foreach my $i (0..$#fhs) {
+                       my $fh = $fhs[$i];
+                       next unless defined $fh;
+                       if (vec($rout, fileno($fh), 1) == 1) {
+                               my $r = '';
+                               if (sysread($fh, $r, 1024) == 0) {
+                                       close($fh);
+                                       record($active[$i], $? >> 8);
+                                       $fhs[$i] = undef;
+                                       $running--;
+                                       print $out[$i];
+                                       $out[$i]='';
+                               }
+                               $out[$i] .= $r;
+                       }
+               }
+               while (@fhs and !defined $fhs[0]) {
+                       shift @active;
+                       shift @fhs;
+                       shift @out;
+               }
+       }
+} #}}}
+
+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";
        }
 } #}}}
 
        }
 } #}}}
 
@@ -564,29 +649,6 @@ sub showstat { #{{{
        }
        return;
 } #}}}
        }
        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 { #{{{
 
 my %loaded;
 sub loadconfig { #{{{
@@ -822,7 +884,7 @@ lib =
                exit 1
        }
        hours_since() {
                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$1"
                                break
                        if [ -e "$MR_REPO/$dir" ]; then
                                flagfile="$MR_REPO/$dir/.mr_last$1"
                                break
@@ -839,11 +901,17 @@ update =
        if [ -d "$MR_REPO"/.svn ]; then
                svn update "$@"
        elif [ -d "$MR_REPO"/.git ]; then
        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 "$MR_REPO"/.bzr ]; then
                bzr merge "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs update "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg pull "$@" && hg update "$@"
        else
                error "unknown repo type"
        fi
        else
                error "unknown repo type"
        fi
@@ -856,6 +924,8 @@ status =
                bzr status "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs status "$@"
                bzr status "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs status "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg status "$@"
        else
                error "unknown repo type"
        fi
        else
                error "unknown repo type"
        fi
@@ -868,6 +938,8 @@ commit =
                bzr commit "$@" && bzr push
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs commit "$@"
                bzr commit "$@" && bzr push
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs commit "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg commit -m "$@" && hg push
        else
                error "unknown repo type"
        fi
        else
                error "unknown repo type"
        fi
@@ -880,6 +952,8 @@ diff =
                bzr diff "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs diff "$@"
                bzr diff "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs diff "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg diff "$@"
        else
                error "unknown repo type"
        fi
        else
                error "unknown repo type"
        fi
@@ -892,6 +966,8 @@ log =
                bzr log "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs log "$@"
                bzr log "$@"
        elif [ -d "$MR_REPO"/CVS ]; then
                cvs log "$@"
+       elif [ -d "$MR_REPO"/.hg ]; then
+               hg log "$@"
        else
                error "unknown repo type"
        fi
        else
                error "unknown repo type"
        fi
@@ -930,6 +1006,11 @@ register =
                echo "Registering cvs repository $repo at root $root"
                mr -c "$MR_CONFIG" config "$(pwd)" \
                        checkout="cvs -d '$root' co -d $basedir $repo"
                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
        else
                error "unable to register this repo type"
        fi
hacking on myrepos

Legalese

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