Add `mr bootstrap`

[code/myrepos.git] / mr

diff --git a/mr b/mr
index 00c62fb760b22ccbaf4a0af5c63522d70b4ecec7..fd380dbe80b2657260caae2e840f8ca9a2b42b58 100755 (executable)
--- 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.
@@ -179,6 +189,11 @@ the current working directory.
 
 Use the specified mrconfig file. The default is B<~/.mrconfig>
 
+=item -p
+
+Search in the current directory, and its parent directories and use
+the first B<.mrconfig> found, instead of the default B<~/.mrconfig>.
+
 =item -v
 
 Be verbose.
@@ -214,18 +229,13 @@ with no number specified. This can greatly speed up operations such as updates.
 It is not recommended for interactive operations.
 
 Note that running more than 10 jobs at a time is likely to run afoul of
-ssh connection limits. Running between 3 and 5 jobs at a time will yeild
+ssh connection limits. Running between 3 and 5 jobs at a time will yield
 a good speedup in updates without loading the machine too much.
 
 =back
 
 =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.
@@ -341,9 +351,20 @@ the action that is performed for a given revision control system, you can
 override these rcs specific actions. To add a new revision control system,
 you can just add rcs specific actions for it.
 
+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.
+
+=head1 EXTENSIONS
+
+mr can be extended to support things such as unison and git-svn. Some
+files providing such extensions are available in /usr/share/mr/. See
+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.
 
@@ -515,12 +536,12 @@ sub action {
        }
        else {
                if (! $no_chdir) {
-                       print "mr $action: $dir\n" unless $quiet;
+                       print "mr $action: $topdir$subdir\n" unless $quiet;
                }
                else {
                        my $s=$directory;
                        $s=~s/^\Q$topdir$subdir\E\/?//;
-                       print "mr $action: $dir (in subdir $s)\n" unless $quiet;
+                       print "mr $action: $topdir$subdir (in subdir $s)\n" unless $quiet;
                }
                $command="set -e; ".$lib.
                        "my_action(){ $command\n }; my_action ".
@@ -1012,6 +1033,9 @@ sub dispatch {
        elsif ($action eq 'register') {
                register(@ARGV);
        }
+       elsif ($action eq 'bootstrap') {
+               bootstrap();
+       }
        elsif ($action eq 'remember' ||
               $action eq 'offline' ||
               $action eq 'online') {
@@ -1117,6 +1141,25 @@ sub register {
        exec($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;
@@ -1141,12 +1184,24 @@ sub expandaction {
        return $action;
 }
 
+sub find_nearest_mrconfig {
+       my $dir=getcwd();
+       while (length $dir) {
+               if (-e "$dir/.mrconfig") {
+                       return "$dir/.mrconfig";
+               }
+               $dir=~s/\/[^\/]*$//;
+       }
+       die "no .mrconfig found in path\n";
+}
+
 sub getopts {
        my @saved=@ARGV;
        Getopt::Long::Configure("bundling", "no_permute");
        my $result=GetOptions(
                "d|directory=s" => sub { $directory=abs_path($_[1]) },
                "c|config=s" => sub { $ENV{MR_CONFIG}=$_[1]; $config_overridden=1 },
+               "p|path" => sub { $ENV{MR_CONFIG}=find_nearest_mrconfig(); $config_overridden=1 },
                "v|verbose" => \$verbose,
                "q|quiet" => \$quiet,
                "s|stats" => \$stats,
@@ -1269,7 +1324,7 @@ git_bare_test =
 
 svn_update = svn update "$@"
 git_update = git pull "$@"
-bzr_update = bzr merge "$@"
+bzr_update = bzr merge --pull "$@"
 cvs_update = cvs update "$@"
 hg_update  = hg pull "$@" && hg update "$@"
 darcs_update = darcs pull -a "$@"
@@ -1370,6 +1425,7 @@ help =
        man -l "$tmp" || error "man failed"
 list = true
 config = 
+bootstrap = 
 
 online =
        if [ -s ~/.mrlog ]; then