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* Add ability to reorder repos, if you want mr to act on a given repo first
[code/myrepos.git] / mr
diff --git a/mr b/mr
index dd55fb821778463df0875a1a81e60ef99dd0674b..0bded236e0e782a267a1d6e2abe5672503197912 100755 (executable)
--- a/mr
+++ b/mr
@@ -229,7 +229,18 @@ mr is run by joey. The second uses the hours_since function
 been at least 12 hours since the last update.
 
   skip = test $(whoami) != joey
 been at least 12 hours since the last update.
 
   skip = test $(whoami) != joey
-  skip = [ "$1" = update ] && [ $(hours_since "$1") -lt 12 ]
+  skip = [ "$1" = update ] && ! hours_since "$1" 12
+
+=item order
+
+The "order" parameter can be used to override the default ordering of
+repositories. The default order value is 10. Use smaller values to make
+repositories be processed earlier, and larger values to make repositories
+be processed later.
+
+Note that if a repository is located in a subdirectory of another
+repository, ordering it to be processed earlier is not recommended, as this
+can cause confusion during checkouts.
 
 =item chain
 
 
 =item chain
 
@@ -400,34 +411,55 @@ elsif ($action eq 'register') {
        exec($command) || die "exec: $!";
 }
 
        exec($command) || die "exec: $!";
 }
 
+# an ordered list of repos
+my @list;
+foreach my $topdir (sort keys %config) {
+       foreach my $subdir (sort keys %{$config{$topdir}}) {
+               push @list, {
+                       topdir => $topdir,
+                       subdir => $subdir,
+                       order => $config{$topdir}{$subdir}{order},
+               };
+       }
+}
+@list = sort {
+               $a->{order}  <=> $b->{order}
+                            ||
+               $a->{topdir} cmp $b->{topdir}
+                            ||
+               $a->{subdir} cmp $b->{subdir}
+       } @list;
+
 # work out what repos to act on
 my @repos;
 my $nochdir=0;
 # work out what repos to act on
 my @repos;
 my $nochdir=0;
-foreach my $topdir (sort keys %config) {
-       foreach my $subdir (sort keys %{$config{$topdir}}) {
+foreach my $repo (@list) {
+       my $topdir=$repo->{topdir};
+       my $subdir=$repo->{subdir};
+
+       next if $subdir eq 'DEFAULT';
+       my $dir=($subdir =~/^\//) ? $subdir : $topdir.$subdir;
+       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/;
+       push @repos, [$dir, $topdir, $subdir];
+}
+if (! @repos) {
+       # fallback to find a leaf repo
+       foreach my $repo (@list) {
+               my $topdir=$repo->{topdir};
+               my $subdir=$repo->{subdir};
+               
                next if $subdir eq 'DEFAULT';
                my $dir=($subdir =~/^\//) ? $subdir : $topdir.$subdir;
                my $d=$directory;
                $dir.="/" unless $dir=~/\/$/;
                $d.="/" unless $d=~/\/$/;
                next if $subdir eq 'DEFAULT';
                my $dir=($subdir =~/^\//) ? $subdir : $topdir.$subdir;
                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/;
-               push @repos, [$dir, $topdir, $subdir];
-       }
-}
-if (! @repos) {
-       # fallback to find a leaf repo
-       LEAF: foreach my $topdir (reverse sort keys %config) {
-               foreach my $subdir (reverse sort keys %{$config{$topdir}}) {
-                       next if $subdir eq 'DEFAULT';
-                       my $dir=($subdir =~/^\//) ? $subdir : $topdir.$subdir;
-                       my $d=$directory;
-                       $dir.="/" unless $dir=~/\/$/;
-                       $d.="/" unless $d=~/\/$/;
-                       if ($d=~/^\Q$dir\E/) {
-                               push @repos, [$dir, $topdir, $subdir];
-                               last LEAF;
-                       }
+               if ($d=~/^\Q$dir\E/) {
+                       push @repos, [$dir, $topdir, $subdir];
+                       last;
                }
        }
        $nochdir=1;
                }
        }
        $nochdir=1;
@@ -488,7 +520,7 @@ sub action { #{{{
                        system("mkdir", "-p", $dir);
                }
        }
                        system("mkdir", "-p", $dir);
                }
        }
-       elsif ($action eq 'update') {
+       elsif ($action =~ /update/) {
                if (! -d $dir) {
                        return action("checkout", $dir, $topdir, $subdir);
                }
                if (! -d $dir) {
                        return action("checkout", $dir, $topdir, $subdir);
                }
@@ -579,7 +611,8 @@ sub mrs { #{{{
                        my $repo = shift @repos;
                        pipe(my $outfh, CHILD_STDOUT);
                        pipe(my $errfh, CHILD_STDERR);
                        my $repo = shift @repos;
                        pipe(my $outfh, CHILD_STDOUT);
                        pipe(my $errfh, CHILD_STDERR);
-                       unless (my $pid = fork) {
+                       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: $!";
                                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: $!";
@@ -591,7 +624,7 @@ sub mrs { #{{{
                        }
                        close CHILD_STDOUT;
                        close CHILD_STDERR;
                        }
                        close CHILD_STDOUT;
                        close CHILD_STDERR;
-                       push @active, $repo;
+                       push @active, [$pid, $repo];
                        push @fhs, [$outfh, $errfh];
                        push @out, ['',     ''];
                }
                        push @fhs, [$outfh, $errfh];
                        push @out, ['',     ''];
                }
@@ -615,10 +648,11 @@ sub mrs { #{{{
                                                $fhs[$i][$channel] = undef;
                                                if (! defined $fhs[$i][0] &&
                                                    ! defined $fhs[$i][1]) {
                                                $fhs[$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";
                                                        print STDOUT $out[$i][0];
                                                        print STDERR $out[$i][1];
                                                        print "\n";
-                                                       record($active[$i], $? >> 8);
+                                                       record($active[$i][1], $? >> 8);
                                                        splice(@fhs, $i, 1);
                                                        splice(@active, $i, 1);
                                                        splice(@out, $i, 1);
                                                        splice(@fhs, $i, 1);
                                                        splice(@active, $i, 1);
                                                        splice(@out, $i, 1);
@@ -891,12 +925,16 @@ ci = commit
 ls = list
 
 [DEFAULT]
 ls = list
 
 [DEFAULT]
+order = 10
 lib =
        error() {
                echo "mr: $@" >&2
                exit 1
        }
        hours_since() {
 lib =
        error() {
                echo "mr: $@" >&2
                exit 1
        }
        hours_since() {
+               if [ -z "$1" ] || [ -z "$2" ]; then
+                       error "mr: usage: hours_since action num"
+               fi
                for dir in .git .svn .bzr CVS .hg; do
                        if [ -e "$MR_REPO/$dir" ]; then
                                flagfile="$MR_REPO/$dir/.mr_last$1"
                for dir in .git .svn .bzr CVS .hg; do
                        if [ -e "$MR_REPO/$dir" ]; then
                                flagfile="$MR_REPO/$dir/.mr_last$1"
@@ -906,8 +944,13 @@ lib =
                if [ -z "$flagfile" ]; then
                        error "cannot determine flag filename"
                fi
                if [ -z "$flagfile" ]; then
                        error "cannot determine flag filename"
                fi
-               perl -wle 'print -f shift() ? int((-M _) * 24) : 9999' "$flagfile"
-               touch "$flagfile"
+               delta=$(perl -wle 'print -f shift() ? int((-M _) * 24) : 9999' "$flagfile")
+               if [ "$delta" -lt "$2" ]; then
+                       exit 0
+               else
+                       touch "$flagfile"
+                       exit 1
+               fi
        }
 
 update =
        }
 
 update =
hacking on myrepos

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