Fix bug when remembering failed commands in offline mode.

[code/myrepos.git] / mr

diff --git a/mr b/mr
index bb98ba674df60d6c2cc9e46537c87bc09190a12c..883f4fbf6bbeb1c348362dcba3aa9fc84bff4831 100755 (executable)
--- a/mr
+++ b/mr
@@ -7,7 +7,7 @@
 mr - a Multiple Repository management tool
 
 =head1 SYNOPSIS
-
+/
 B<mr> [options] checkout
 
 B<mr> [options] update
@@ -28,6 +28,10 @@ B<mr> [options] config section ["parameter=[value]" ...]
 
 B<mr> [options] action [params ...]
 
+B<mr> [options] [online|offline]
+
+B<mr> [options] remember action [params ...]
+
 =head1 DESCRIPTION
 
 B<mr> is a Multiple Repository management tool. It can checkout, update, or
@@ -77,6 +81,11 @@ remote repository. Only supported for distributed revision control systems.
 
 The optional -m parameter allows specifying a commit message.
 
+=item push
+
+Pushes committed local changes to the remote repository. A no-op for
+centralized revision control systems.
+
 =item diff
 
 Show a diff of uncommitted changes.
@@ -126,6 +135,24 @@ To see the built-in library of shell functions contained in mr:
 The ~/.mrconfig file is used by default. To use a different config file,
 use the -c option.
 
+=item offline
+
+Advises mr that it is in offline mode. Any commands that fail in
+offline mode will be remembered, and retried when mr is told it's online.
+
+=item online
+
+Advices mr that it is in online mode again. Commands that failed while in
+offline mode will be re-run.
+
+=item remember
+
+Remember a command, to be run later when mr re-enters online mode. This
+implicitly puts mr into offline mode. The command can be any regular mr
+command. This is useful when you know that a command will fail due to being
+offline, and so don't want to run it right now at all, but just remember
+to run it when you go back online.
+
 =item help
 
 Displays this help.
@@ -196,6 +223,11 @@ a good speedup in updates without loading the machine too much.
 
 =head1 FILES
 
+The ~/.mrlog file contains commands that mr has remembered to run later,
+due to being offline. You can delete or edit this file to remove commands,
+or even to add other commands for 'mr online' to run. If the file is
+present, mr assumes it is in offline mode.
+
 B<mr> is configured by .mrconfig files. It starts by reading the .mrconfig
 file in your home directory, and this can in turn chain load .mrconfig files
 from repositories.
@@ -419,12 +451,14 @@ sub findcommand { #{{{
 
 sub action { #{{{
        my ($action, $dir, $topdir, $subdir) = @_;
-
+       
        $ENV{MR_CONFIG}=$configfiles{$topdir};
        my $lib=exists $config{$topdir}{$subdir}{lib} ?
                       $config{$topdir}{$subdir}{lib}."\n" : "";
        my $is_checkout=($action eq 'checkout');
 
+       $ENV{MR_REPO}=$dir;
+
        if ($is_checkout) {
                if (-d $dir) {
                        print "mr $action: $dir already exists, skipping checkout\n" if $verbose;
@@ -439,8 +473,6 @@ sub action { #{{{
                }
        }
 
-       $ENV{MR_REPO}=$dir;
-
        my $skiptest=findcommand("skip", $dir, $topdir, $subdir, $is_checkout);
        my $command=findcommand($action, $dir, $topdir, $subdir, $is_checkout);
 
@@ -511,6 +543,14 @@ sub action { #{{{
                        print STDERR "mr $action: failed ($ret)\n" if $verbose;
                        if ($ret >> 8 != 0) {
                                print STDERR "mr $action: command failed\n";
+                               if (-e "$ENV{HOME}/.mrlog" && $action ne 'remember') {
+                                       # recreate original command line to
+                                       # remember, and avoid recursing
+                                       my @orig=@ARGV;
+                                       @ARGV=('-n', $action, @orig);
+                                       action("remember", $dir, $topdir, $subdir);
+                                       @ARGV=@orig;
+                               }
                        }
                        elsif ($ret != 0) {
                                print STDERR "mr $action: command died ($ret)\n";
@@ -973,6 +1013,13 @@ sub dispatch { #{{{
        elsif ($action eq 'register') {
                register(@ARGV);
        }
+       elsif ($action eq 'remember' ||
+              $action eq 'offline' ||
+              $action eq 'online') {
+               my @repos=selectrepos;
+               action($action, @{$repos[0]}) if @repos;
+               exit 0;
+       }
 
        if (!$jobs || $jobs > 1) {
                mrs($action, selectrepos());
@@ -987,7 +1034,7 @@ sub dispatch { #{{{
 sub help { #{{{
        exec($config{''}{DEFAULT}{help}) || die "exec: $!";
 } #}}}
-       
+
 sub config { #{{{
        if (@_ < 2) {
                die "mr config: not enough parameters\n";
@@ -1027,7 +1074,12 @@ sub config { #{{{
 } #}}}
 
 sub register { #{{{
-       if (! $config_overridden) {
+       if ($config_overridden) {
+               # Find the directory that the specified config file is
+               # located in.
+               ($directory)=abs_path($ENV{MR_CONFIG})=~/^(.*\/)[^\/]+$/;
+       }
+       else {
                # Find the closest known mrconfig file to the current
                # directory.
                $directory.="/" unless $directory=~/\/$/;
@@ -1091,6 +1143,7 @@ sub expandaction { #{{{
 } #}}}
 
 sub getopts { #{{{
+       my @saved=@ARGV;
        Getopt::Long::Configure("bundling", "no_permute");
        my $result=GetOptions(
                "d|directory=s" => sub { $directory=abs_path($_[1]) },
@@ -1106,6 +1159,12 @@ sub getopts { #{{{
                die("Usage: mr [-d directory] action [params ...]\n".
                    "(Use mr help for man page.)\n");
        }
+       
+       $ENV{MR_SWITCHES}="";
+       foreach my $option (@saved) {
+               last if $option eq $ARGV[0];
+               $ENV{MR_SWITCHES}.="$option ";
+       }
 } #}}}
 
 sub init { #{{{
@@ -1135,10 +1194,11 @@ sub init { #{{{
 sub main { #{{{
        getopts();
        init();
+
        loadconfig(\*DATA);
        loadconfig($ENV{MR_CONFIG});
        #use Data::Dumper; print Dumper(\%config);
-
+       
        my $action=expandaction(shift @ARGV);
        dispatch($action);
        showstats($action);
@@ -1235,6 +1295,13 @@ bzr_record = bzr commit "$@"
 hg_record  = hg commit -m "$@"
 darcs_record = darcs record -a -m "$@"
 
+svn_push = :
+git_push = git push "$@"
+bzr_push = bzr push "$@"
+cvs_push = :
+hg_push = hg push "$@"
+darcs_push = darcs push -a
+
 svn_diff = svn diff "$@"
 git_diff = git diff "$@"
 bzr_diff = bzr diff "$@"
@@ -1306,6 +1373,30 @@ help =
 list = true
 config = 
 
+online =
+       if [ -s ~/.mrlog ]; then
+               info "running offline commands"
+               mv -f ~/.mrlog ~/.mrlog.old
+               if ! sh -e ~/.mrlog.old; then
+                       error "offline command failed; left in ~/.mrlog.old"
+               fi
+               rm -f ~/.mrlog.old
+       else
+               info "no offline commands to run"
+       fi
+offline =
+       touch ~/.mrlog
+       info "offline mode enabled"
+remember =
+       info "remembering command: 'mr $@'"
+       command="mr -d '$(pwd)' $MR_SWITCHES"
+       for w in "$@"; do
+               command="$command '$w'"
+       done
+       if [ ! -e ~/.mrlog ] || ! grep -q -F "$command" ~/.mrlog; then
+               echo "$command" >> ~/.mrlog
+       fi
+
 ed = echo "A horse is a horse, of course, of course.."
 T = echo "I pity the fool."
 right = echo "Not found."