From: Joey Hess <joey@kodama.kitenet.net>
Date: Thu, 11 Oct 2007 17:38:18 +0000 (-0400)
Subject: add help and diff commands
X-Git-Url: https://git.madduck.net/code/myrepos.git/commitdiff_plain/a6af578542ff49bdbac29fb5773c24ff2ed4ef5c?pf=code

add help and diff commands
---

diff --git a/INSTALL b/INSTALL
index 69af33f..d2b5370 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1 +1,5 @@
+mr is intended to be very self-contained, since it might be useful to check
+it into ~/bin when keeping your home in version control. It has no
+dependencies aside from basic perl.
+
 Just copy mr into your PATH somewhere, and set up ~/.mrconfig
diff --git a/debian/rules b/debian/rules
index cb8604b..76c53e8 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,7 +1,7 @@
 #!/usr/bin/make -f
 
 build:
-	pod2man -c mr mr > mr.1
+	./mr help > mr.1
 
 clean:
 	dh_testdir
diff --git a/mr b/mr
index f26b144..1741812 100755
--- 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}}) {
@@ -217,7 +238,6 @@ foreach my $topdir (sort keys %config) {
 		}
 
 		action($action, $dir, $topdir, $subdir);
-
 	}
 }
 
@@ -436,3 +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"