add help and diff commands

[code/myrepos.git] / mr

diff --git a/mr b/mr
index 577fa85a60aac12cc115c710fcaf3e37adf6c4d6..17418124d2011194ed5c084afbb2e5eefbc70f8c 100755 (executable)
--- a/mr
+++ b/mr
@@ -14,6 +14,8 @@ B<mr> [options] status
 
 B<mr> [options] commit [-m "message"]
 
+B<mr> [options] diff
+
 B<mr> [options] action [params ...]
 
 =head1 DESCRIPTION
@@ -54,6 +56,14 @@ like git.)
 
 The optional -m parameter allows specifying a commit message.
 
+=item diff
+
+Show a diff of uncommitted changes.
+
+=item help
+
+Displays this help.
+
 =back
 
 Actions can be abbreviated to any unambiguous subsctring, so
@@ -167,7 +177,9 @@ my $result=GetOptions(
        "v" => \$verbose,
 );
 if (! $result || @ARGV < 1) {
-       die("Usage: mr [-d directory] action [params ...]\n");
+       die("Usage: mr [-d directory] action [params ...]\n".
+           "(Use mr help for man page.)\n");
+
 }
 
 loadconfig(\*DATA);
@@ -175,6 +187,11 @@ loadconfig($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 $knownactions{$action}) {
@@ -193,6 +210,10 @@ if (! exists $knownactions{$action}) {
        }
 }
 
+if ($action eq 'help') {
+       exec($config{''}{default}{help});
+}
+
 # handle being in a subdir of a repository
 foreach my $topdir (sort keys %config) {
        foreach my $subdir (sort keys %{$config{$topdir}}) {
@@ -216,11 +237,7 @@ foreach my $topdir (sort keys %config) {
                        next;
                }
 
-               print "\n" unless $first;
-               $first=0;
-
                action($action, $dir, $topdir, $subdir);
-
        }
 }
 
@@ -281,6 +298,9 @@ sub action {
                else {
                        push @successful, $dir;
                }
+
+               print "\n" unless $first;
+               $first=0;
        }
 }
 
@@ -293,7 +313,8 @@ sub showstat {
        }
        return;
 }
-print "\nmr $action: finished (".join("; ",
+print "\n" unless $first;
+print "mr $action: finished (".join("; ",
        showstat($#successful+1, "successful", "successful"),
        showstat($#failed+1, "failed", "failed"),
        showstat($#skipped+1, "skipped", "skipped"),
@@ -435,3 +456,17 @@ commit = \
        else \
                error "unknown repo type"; \
        fi
+diff = \
+       if [ -d .svn ]; then \
+               svn diff "$@"; \
+       elif [ -d .git ]; then \
+               git diff "$@"; \
+       else \
+               error "unknown repo type"; \
+       fi
+help = \
+       if [ ! -e "$MR_PATH" ]; then \
+               error "cannot find program path";\
+       fi; \
+       (pod2man -c mr "$MR_PATH" | man -l -) || \
+               error "pod2man or man failed"