From 05c1b453b27f8e2629215d6faba92f12dcf2ab93 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@gnu.kitenet.net>
Date: Thu, 6 Aug 2009 22:36:30 -0400
Subject: [PATCH] Add `mr bootstrap`

which downloads an url to a .mrconfig file in the current directory and
then checks out all repositories configured in it.

This is intended for projects that want to publish a mrconfig file to
automate use of their several repositories.
---
 debian/changelog |  8 +++++---
 debian/copyright |  2 +-
 mr               | 35 ++++++++++++++++++++++++++++++++++-
 3 files changed, 40 insertions(+), 5 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index 32958fa..87a496e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,9 +1,11 @@
 mr (0.41) UNRELEASED; urgency=low
 
   * Add -p switch, that makes mr search the current directory and its
-    parents for a .mrconfig file to use. Useful for projects that want
-    to publish a mrconfig file to use to check out their several repositories,
-    without requiring users put it anywhere in particular.
+    parents for a .mrconfig file to use.
+  * Add `mr bootstrap`, which downloads an url to a .mrconfig file
+    in the current directory and then checks out all repositories configured
+    in it. This is intended for projects that want to publish a mrconfig file
+    to automate use of their several repositories.
 
  -- Joey Hess <joeyh@debian.org>  Thu, 06 Aug 2009 22:13:05 -0400
 
diff --git a/debian/copyright b/debian/copyright
index 24c49f0..5acf191 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -1,5 +1,5 @@
 Files: *
-Copyright: (c) 2007 Joey Hess <joeyh@debian.org>
+Copyright: (c) 2007-2009 Joey Hess <joeyh@debian.org>
 License: GPL-2+
  On Debian systems, the complete text of the GPL can be found in
  /usr/share/common-licenses/GPL.
diff --git a/mr b/mr
index 4dbaa7a..fd380db 100755
--- a/mr
+++ b/mr
@@ -20,6 +20,8 @@ B<mr> [options] diff
 
 B<mr> [options] log
 
+B<mr> [options] bootstrap url
+
 B<mr> [options] register [repository]
 
 B<mr> [options] config section ["parameter=[value]" ...]
@@ -98,6 +100,14 @@ These commands are also available:
 
 =over 4
 
+=item bootstrap url
+
+Causes mr to download the url, save it to a .mrconfig file in the
+current directory, and then check out all repositories listed in it.
+
+(Please only do this if you have reason to trust the url, since
+mrconfig files can contain arbitrary commands!)
+
 =item list (or ls)
 
 List the repositories that mr will act on.
@@ -354,7 +364,7 @@ the documentation in the files for details about using them.
 
 =head1 AUTHOR
 
-Copyright 2007 Joey Hess <joey@kitenet.net>
+Copyright 2007-2009 Joey Hess <joey@kitenet.net>
 
 Licensed under the GNU GPL version 2 or higher.
 
@@ -1023,6 +1033,9 @@ sub dispatch {
 	elsif ($action eq 'register') {
 		register(@ARGV);
 	}
+	elsif ($action eq 'bootstrap') {
+		bootstrap();
+	}
 	elsif ($action eq 'remember' ||
 	       $action eq 'offline' ||
 	       $action eq 'online') {
@@ -1128,6 +1141,25 @@ sub register {
 	exec($command) || die "exec: $!";
 }
 
+sub bootstrap {
+	my $url=shift @ARGV;
+
+	if (! defined $url || ! length $url) {
+		die "mr: bootstrap requires url\n";
+	}
+
+	if (-e ".mrconfig") {
+		die "mr: .mrconfig file already exists, not overwriting with $url\n";
+	}
+
+	if (system("curl", "-s", $url, "-o", ".mrconfig") != 0) {
+		die "mr: download of $url failed\n";
+	}
+
+	exec("mr $ENV{MR_SWITCHES} -c .mrconfig checkout");
+	die "failed to run mr checkout";
+}
+
 # alias expansion and command stemming
 sub expandaction {
 	my $action=shift;
@@ -1393,6 +1425,7 @@ help =
 	man -l "$tmp" || error "man failed"
 list = true
 config = 
+bootstrap = 
 
 online =
 	if [ -s ~/.mrlog ]; then
-- 
2.39.2