X-Git-Url: https://git.madduck.net/code/myrepos.git/blobdiff_plain/2cb02ac8d550b1335c547bc59d2af249c3c08e1f..677f2c478ccc89aa2f30c4407e26bc568d8b5532:/mr

diff --git a/mr b/mr
index 7224a04..fc63605 100755
--- a/mr
+++ b/mr
@@ -16,10 +16,14 @@ B<mr> [options] commit [-m "message"]
 
 B<mr> [options] record [-m "message"]
 
+B<mr> [options] push
+
 B<mr> [options] diff
 
 B<mr> [options] log
 
+B<mr> [options] run command [param ...]
+
 B<mr> [options] bootstrap url [directory]
 
 B<mr> [options] register [repository]
@@ -37,8 +41,8 @@ B<mr> [options] remember action [params ...]
 B<mr> is a Multiple Repository management tool. It can checkout, update, or
 perform other actions on a set of repositories as if they were one combined
 repository. It supports any combination of subversion, git, cvs, mercurial,
-bzr and darcs repositories, and support for other revision control systems can
-easily be added.
+bzr, darcs and fossil repositories, and support for other version
+control systems can easily be added.
 
 B<mr> cds into and operates on all registered repositories at or below your
 working directory. Or, if you are in a subdirectory of a repository that
@@ -47,9 +51,11 @@ and work on only that repository,
 
 B<mr> is configured by .mrconfig files, which list the repositories. It
 starts by reading the .mrconfig file in your home directory, and this can
-in turn chain load .mrconfig files from repositories.
+in turn chain load .mrconfig files from repositories. It also automatically
+looks for a .mrconfig file in the current directory, or in one of its
+parent directories.
 
-These predefined commands should be fairly familiar to users of any revision
+These predefined commands should be fairly familiar to users of any version
 control system:
 
 =over 4
@@ -81,14 +87,14 @@ The optional -m parameter allows specifying a commit message.
 =item record
 
 Records changes to the local repository, but does not push them to the
-remote repository. Only supported for distributed revision control systems.
+remote repository. Only supported for distributed version 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.
+centralized version control systems.
 
 =item diff
 
@@ -98,6 +104,10 @@ Show a diff of uncommitted changes.
 
 Show the commit log.
 
+=item run command [param ...]
+
+Runs the specified command in each repository.
+
 =back
 
 These commands are also available:
@@ -126,7 +136,7 @@ repository in the current directory is registered, or you can specify a
 directory to register.
 
 The mrconfig file that is modified is chosen by either the -c option, or by
-looking for the closest known one at or below the current directory.
+looking for the closest known one at or in a parent of the current directory.
 
 =item config
 
@@ -147,8 +157,8 @@ To see the built-in library of shell functions contained in mr:
 
   mr config DEFAULT lib
 
-The ~/.mrconfig file is used by default. To use a different config file,
-use the -c option.
+The mrconfig file that is used is chosen by either the -c option, or by
+looking for the closest known one at or in a parent of the current directory.
 
 =item offline
 
@@ -179,8 +189,8 @@ Actions can be abbreviated to any unambiguous substring, so
 update"
 
 Additional parameters can be passed to most commands, and are passed on
-unchanged to the underlying revision control system. This is mostly useful
-if the repositories mr will act on all use the same revision control
+unchanged to the underlying version control system. This is mostly useful
+if the repositories mr will act on all use the same version control
 system.
 
 =head1 OPTIONS
@@ -198,14 +208,9 @@ the current working directory.
 
 =item --config mrconfig
 
-Use the specified mrconfig file. The default is B<~/.mrconfig>
-
-=item -p
-
-=item --path
-
-Search in the current directory, and its parent directories and use
-the first B<.mrconfig> found, instead of the default B<~/.mrconfig>.
+Use the specified mrconfig file. The default is to use both B<~/.mrconfig>
+as well as look for a .mrconfig file in the current directory, or in one
+of its parent directories.
 
 =item -v
 
@@ -217,7 +222,9 @@ Be verbose.
 
 =item --quiet
 
-Be quiet.
+Be quiet. This supresses mr's usual output, as well as any output from
+commands that are run (including stderr output). If a command fails,
+the output will be shown.
 
 =item -k
 
@@ -270,14 +277,20 @@ a good speedup in updates without loading the machine too much.
 Trust all mrconfig files even if they are not listed in ~/.mrtrust.
 Use with caution.
 
+=item -p
+
+=item --path
+
+This obsolete flag is ignored.
+
 =back
 
-=head1 "MRCONFIG FILES"
+=head1 MRCONFIG FILES
 
 Here is an example .mrconfig file:
 
   [src]
-  checkout = svn co svn://svn.example.com/src/trunk src
+  checkout = svn checkout svn://svn.example.com/src/trunk src
   chain = true
 
   [src/linux-2.6]
@@ -304,14 +317,18 @@ will be passed through the shell for expansion. For example,
 
 Within a section, each parameter defines a shell command to run to handle a
 given action. mr contains default handlers for "update", "status",
-"commit", and other standard actions. Normally you only need to specify what
-to do for "checkout".
+"commit", and other standard actions.
+
+Normally you only need to specify what to do for "checkout". Here you
+specify the command to run in order to create a checkout of the repository.
+The command will be run in the parent directory, and must create the
+repository's directory. So use "git clone", "svn checkout", "bzr branch"
+or "bzr checkout" (for a bound branch), etc.
 
 Note that these shell commands are run in a "set -e" shell
 environment, where any additional parameters you pass are available in
-"$@". The "checkout" command is run in the parent of the repository
-directory, since the repository isn't checked out yet. All other commands
-are run inside the repository, though not necessarily at the top of it.
+"$@". All commands other than "checkout" are run inside the repository,
+though not necessarily at the top of it.
 
 The "MR_REPO" environment variable is set to the path to the top of the
 repository. (For the "register" action, "MR_REPO" is instead set to the 
@@ -322,6 +339,9 @@ The "MR_CONFIG" environment variable is set to the .mrconfig file
 that defines the repo being acted on, or, if the repo is not yet in a config
 file, the .mrconfig file that should be modified to register the repo.
 
+The "MR_ACTION" environment variable is set to the command being run
+(update, checkout, etc).
+
 A few parameters have special meanings:
 
 =over 4
@@ -337,8 +357,21 @@ mr is run by joey. The second uses the hours_since function
 (included in mr's built-in library) to skip updating the repo unless it's
 been at least 12 hours since the last update.
 
+  [mystuff]
+  checkout = ...
   skip = test `whoami` != joey
+
+  [linux]
+  checkout = ...
   skip = [ "$1" = update ] && ! hours_since "$1" 12
+ 
+Another way to use skip is for a lazy checkout. This makes mr skip
+operating on a repo unless it already exists. To enable the 
+repo, you have to explicitly check it out (using "mr -d foo checkout").
+
+  [foo]
+  checkout = ...
+  skip = lazy
 
 =item order
 
@@ -364,46 +397,78 @@ part of the including file.
 Unlike all other parameters, this parameter does not need to be placed
 within a section.
 
+B<mr> ships several libraries that can be included to add support for
+additional version control type things (unison, git-svn, vcsh, git-fake-bare,
+git-subtree). To include them all, you could use:
+
+  include = cat /usr/share/mr/*
+
+See the individual files for details.
+
+=item deleted
+
+If the "deleted" parameter is set and its command returns true, then
+B<mr> will treat the repository as deleted. It won't ever actually delete
+the repository, but it will warn if it sees the repository's directory.
+This is useful when one mrconfig file is shared amoung multiple machines,
+to keep track of and remember to delete old repositories.
+
 =item lib
 
 The "lib" parameter can specify some shell code that will be run before each
 command, this can be a useful way to define shell functions for other commands
 to use.
 
+=item fixups
+
+If the "fixups" parameter is set, its command is run whenever a repository
+is checked out, or updated. This provides an easy way to do things
+like permissions fixups, or other tweaks to the repository content,
+whenever the repository is changed.
+
+=item pre_ and post_
+
+If a "pre_action" parameter is set, its command is run before mr performs the
+specified action. Similarly, "post_action" parameters are run after mr
+successfully performs the specified action. For example, "pre_commit" is
+run before committing; "post_update" is run after updating.
+
 =back
 
 When looking for a command to run for a given action, mr first looks for
 a parameter with the same name as the action. If that is not found, it
-looks for a parameter named "rcs_action" (substituting in the name of the
-revision control system and the action). The name of the revision control
-system is itself determined by running each defined "rcs_test" action,
+looks for a parameter named "VCS_action" (substituting in the name of the
+version control system and the action). The name of the version control
+system is itself determined by running each defined "VCS_test" action,
 until one succeeds.
 
 Internally, mr has settings for "git_update", "svn_update", etc. To change
-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 action that is performed for a given version control system, you can
+override these VCS specific actions. To add a new version control system,
+you can just add VCS 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 "UNTRUSTED MRCONFIG FILES"
+=head1 UNTRUSTED MRCONFIG FILES
 
 Since mrconfig files can contain arbitrary shell commands, they can do
-anything. This flexability is good, but it also allows a malicious mrconfig
+anything. This flexibility is good, but it also allows a malicious mrconfig
 file to delete your whole home directory. Such a file might be contained
-inside a repository that your main ~/.mrconfig checks out and chains to. To
-avoid worries about evil commands in a mrconfig file, mr
-has the ability to read mrconfig files in untrusted mode. Such files are
-limited to running only known safe commands (like "git clone") in a
-carefully checked manner.
+inside a repository that your main ~/.mrconfig checks out. To
+avoid worries about evil commands in a mrconfig file, mr defaults to
+reading all mrconfig files other than the main ~/.mrconfig in untrusted
+mode. In untrusted mode, mrconfig files are limited to running only known
+safe commands (like "git clone") in a carefully checked manner.
 
-By default, mr trusts all mrconfig files. (This default will change in a
-future release!) But if you have a ~/.mrtrust file, mr will only trust
-mrconfig files that are listed within it. (One file per line.) All other
-files will be treated as untrusted.
+To configure mr to trust other mrconfig files, list them in ~/.mrtrust.
+One mrconfig file should be listed per line. Either the full pathname
+should be listed, or the pathname can start with "~/" to specify a file
+relative to your home directory.
+
+=head1 OFFLINE LOG FILE
+
+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
 
@@ -411,9 +476,13 @@ 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 EXIT STATUS
+
+mr returns nonzero if a command failed in any of the repositories.
+
 =head1 AUTHOR
 
-Copyright 2007-2009 Joey Hess <joey@kitenet.net>
+Copyright 2007-2011 Joey Hess <joey@kitenet.net>
 
 Licensed under the GNU GPL version 2 or higher.
 
@@ -446,7 +515,8 @@ my $no_chdir=0;
 my $jobs=1;
 my $trust_all=0;
 my $directory=getcwd();
-$ENV{MR_CONFIG}="$ENV{HOME}/.mrconfig";
+
+$ENV{MR_CONFIG}=find_mrconfig();
 
 # globals :-(
 my %config;
@@ -457,41 +527,41 @@ my (@ok, @failed, @skipped);
 
 main();
 
-my %rcs;
-sub rcs_test {
+my %vcs;
+sub vcs_test {
 	my ($action, $dir, $topdir, $subdir) = @_;
 
-	if (exists $rcs{$dir}) {
-		return $rcs{$dir};
+	if (exists $vcs{$dir}) {
+		return $vcs{$dir};
 	}
 
 	my $test="set -e\n";
-	foreach my $rcs_test (
+	foreach my $vcs_test (
 			sort {
 				length $a <=> length $b 
 				          ||
 				       $a cmp $b
 			} grep { /_test$/ } keys %{$config{$topdir}{$subdir}}) {
-		my ($rcs)=$rcs_test=~/(.*)_test/;
-		$test="my_$rcs_test() {\n$config{$topdir}{$subdir}{$rcs_test}\n}\n".$test;
-		$test.="if my_$rcs_test; then echo $rcs; fi\n";
+		my ($vcs)=$vcs_test=~/(.*)_test/;
+		$test="my_$vcs_test() {\n$config{$topdir}{$subdir}{$vcs_test}\n}\n".$test;
+		$test.="if my_$vcs_test; then echo $vcs; fi\n";
 	}
 	$test=$config{$topdir}{$subdir}{lib}."\n".$test
 		if exists $config{$topdir}{$subdir}{lib};
 	
-	print "mr $action: running rcs test >>$test<<\n" if $verbose;
-	my $rcs=`$test`;
-	chomp $rcs;
-	if ($rcs=~/\n/s) {
-		$rcs=~s/\n/, /g;
-		print STDERR "mr $action: found multiple possible repository types ($rcs) for $topdir$subdir\n";
+	print "mr $action: running vcs test >>$test<<\n" if $verbose;
+	my $vcs=`$test`;
+	chomp $vcs;
+	if ($vcs=~/\n/s) {
+		$vcs=~s/\n/, /g;
+		print STDERR "mr $action: found multiple possible repository types ($vcs) for ".fulldir($topdir, $subdir)."\n";
 		return undef;
 	}
-	if (! length $rcs) {
-		return $rcs{$dir}=undef;
+	if (! length $vcs) {
+		return $vcs{$dir}=undef;
 	}
 	else {
-		return $rcs{$dir}=$rcs;
+		return $vcs{$dir}=$vcs;
 	}
 }
 	
@@ -506,26 +576,65 @@ sub findcommand {
 		return undef;
 	}
 
-	my $rcs=rcs_test(@_);
+	my $vcs=vcs_test(@_);
 
-	if (defined $rcs && 
-	    exists $config{$topdir}{$subdir}{$rcs."_".$action}) {
-		return $config{$topdir}{$subdir}{$rcs."_".$action};
+	if (defined $vcs && 
+	    exists $config{$topdir}{$subdir}{$vcs."_".$action}) {
+		return $config{$topdir}{$subdir}{$vcs."_".$action};
 	}
 	else {
 		return undef;
 	}
 }
 
+sub fulldir {
+	my ($topdir, $subdir) = @_;
+	return $subdir =~ /^\// ? $subdir : $topdir.$subdir;
+}
+
 sub action {
 	my ($action, $dir, $topdir, $subdir, $force_checkout) = @_;
-	
+	my $fulldir=fulldir($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');
+	my $is_update=($action =~ /update/);
 
-	$ENV{MR_REPO}=$dir;
+	($ENV{MR_REPO}=$dir) =~ s!/$!!;
+	$ENV{MR_ACTION}=$action;
+	
+	foreach my $testname ("skip", "deleted") {
+		my $testcommand=findcommand($testname, $dir, $topdir, $subdir, $is_checkout);
+
+		if (defined $testcommand) {
+			my $test="set -e;".$lib.
+				"my_action(){ $testcommand\n }; my_action '$action'";
+			print "mr $action: running $testname test >>$test<<\n" if $verbose;
+			my $ret=system($test);
+			if ($ret != 0) {
+				if (($? & 127) == 2) {
+					print STDERR "mr $action: interrupted\n";
+					return ABORT;
+				}
+				elsif ($? & 127) {
+					print STDERR "mr $action: $testname test received signal ".($? & 127)."\n";
+					return ABORT;
+				}
+			}
+			if ($ret >> 8 == 0) {
+				if ($testname eq "deleted") {
+					if (-d $dir) {
+						print STDERR "mr error: $dir should be deleted yet still exists\n";
+						return FAILED;
+					}
+				}
+				print "mr $action: skip $dir skipped\n" if $verbose;
+				return SKIPPED;
+			}
+		}
+	}
 
 	if ($is_checkout) {
 		if (! $force_checkout) {
@@ -537,36 +646,14 @@ sub action {
 			$dir=~s/^(.*)\/[^\/]+\/?$/$1/;
 		}
 	}
-	elsif ($action =~ /update/) {
+	elsif ($is_update) {
 		if (! -d $dir) {
 			return action("checkout", $dir, $topdir, $subdir);
 		}
 	}
 
-	my $skiptest=findcommand("skip", $dir, $topdir, $subdir, $is_checkout);
 	my $command=findcommand($action, $dir, $topdir, $subdir, $is_checkout);
 
-	if (defined $skiptest) {
-		my $test="set -e;".$lib.
-			"my_action(){ $skiptest\n }; my_action '$action'";
-		print "mr $action: running skip test >>$test<<\n" if $verbose;
-		my $ret=system($test);
-		if ($ret != 0) {
-			if (($? & 127) == 2) {
-				print STDERR "mr $action: interrupted\n";
-				return ABORT;
-			}
-			elsif ($? & 127) {
-				print STDERR "mr $action: skip test received signal ".($? & 127)."\n";
-				return ABORT;
-			}
-		}
-		if ($ret >> 8 == 0) {
-			print "mr $action: $dir skipped per config file\n" if $verbose;
-			return SKIPPED;
-		}
-	}
-
 	if ($is_checkout && ! -d $dir) {
 		print "mr $action: creating parent directory $dir\n" if $verbose;
 		system("mkdir", "-p", $dir);
@@ -577,30 +664,47 @@ sub action {
 		return FAILED;
 	}
 	elsif (! defined $command) {
-		my $rcs=rcs_test(@_);
-		if (! defined $rcs) {
-			print STDERR "mr $action: unknown repository type and no defined $action command for $topdir$subdir\n";
+		my $vcs=vcs_test(@_);
+		if (! defined $vcs) {
+			print STDERR "mr $action: unknown repository type and no defined $action command for $fulldir\n";
 			return FAILED;
 		}
 		else {
-			print STDERR "mr $action: no defined action for $rcs repository $topdir$subdir, skipping\n";
+			print STDERR "mr $action: no defined action for $vcs repository $fulldir, skipping\n";
 			return SKIPPED;
 		}
 	}
 	else {
+		my $actionmsg;
 		if (! $no_chdir) {
-			print "mr $action: $topdir$subdir\n" unless $quiet;
+			$actionmsg="mr $action: $fulldir";
 		}
 		else {
 			my $s=$directory;
-			$s=~s/^\Q$topdir$subdir\E\/?//;
-			print "mr $action: $topdir$subdir (in subdir $s)\n" unless $quiet;
+			$s=~s/^\Q$fulldir\E\/?//;
+			$actionmsg="mr $action: $fulldir (in subdir $s)";
 		}
+		print "$actionmsg\n" unless $quiet;
+
+		my $hookret=hook("pre_$action", $topdir, $subdir);
+		return $hookret if $hookret != OK;
+
 		$command="set -e; ".$lib.
 			"my_action(){ $command\n }; my_action ".
-			join(" ", map { s/\//\/\//g; s/"/\"/g; '"'.$_.'"' } @ARGV);
+			join(" ", map { s/\\/\\\\/g; s/"/\"/g; '"'.$_.'"' } @ARGV);
 		print "mr $action: running >>$command<<\n" if $verbose;
-		my $ret=system($command);
+		my $ret;
+		if ($quiet) {
+			my $output = qx/$command 2>&1/;
+			$ret = $?;
+			if ($ret != 0) {
+				print "$actionmsg\n";
+				print STDERR $output;
+			}
+		}
+		else {
+			$ret=system($command);
+		}
 		if ($ret != 0) {
 			if (($? & 127) == 2) {
 				print STDERR "mr $action: interrupted\n";
@@ -628,16 +732,62 @@ sub action {
 			return FAILED;
 		}
 		else {
-			if ($action eq 'checkout' && ! -d $dir) {
+			if ($is_checkout && ! -d $dir) {
 				print STDERR "mr $action: $dir missing after checkout\n";;
 				return FAILED;
 			}
 
+			my $ret=hook("post_$action", $topdir, $subdir);
+			return $ret if $ret != OK;
+			
+			if (($is_checkout || $is_update)) {
+				my $ret=hook("fixups", $topdir, $subdir);
+				return $ret if $ret != OK;
+			}
+			
 			return OK;
 		}
 	}
 }
 
+sub hook {
+	my ($hook, $topdir, $subdir) = @_;
+
+	my $command=$config{$topdir}{$subdir}{$hook};
+	return OK unless defined $command;
+	my $lib=exists $config{$topdir}{$subdir}{lib} ?
+	               $config{$topdir}{$subdir}{lib}."\n" : "";
+	my $shell="set -e;".$lib.
+		"my_hook(){ $command\n }; my_hook";
+	print "mr $hook: running >>$shell<<\n" if $verbose;
+	my $ret;
+	if ($quiet) {
+		my $output = qx/$shell 2>&1/;
+		$ret = $?;
+		if ($ret != 0) {
+			print STDERR $output;
+		}
+	}
+	else {
+		$ret=system($shell);
+	}
+	if ($ret != 0) {
+		if (($? & 127) == 2) {
+			print STDERR "mr $hook: interrupted\n";
+			return ABORT;
+		}
+		elsif ($? & 127) {
+			print STDERR "mr $hook: received signal ".($? & 127)."\n";
+			return ABORT;
+		}
+		else {
+			return FAILED;
+		}
+	}
+
+	return OK;
+}
+
 # run actions on multiple repos, in parallel
 sub mrs {
 	my $action=shift;
@@ -796,7 +946,10 @@ sub repodir {
 	return $ret;
 }
 
-# figure out which repos to act on
+# Figure out which repos to act on.  Returns a list of array refs
+# in the format:
+#
+#   [ "$full_repo_path/", "$mr_config_path/", $section_header ]
 sub selectrepos {
 	my @repos;
 	foreach my $repo (repolist()) {
@@ -861,22 +1014,16 @@ sub is_trusted_config {
 
 	my $trustfile=$ENV{HOME}."/.mrtrust";
 
-	if (! -e $trustfile) {
-		print "mr: Assuming $config is trusted.\n";
-		print "mr: For better security, you are encouraged to create ~/.mrtrust\n";
-		print "mr: and list all trusted mrconfig files in it.\n";
-		return 1;
-	}
-
 	if (! %trusted) {
 		$trusted{"$ENV{HOME}/.mrconfig"}=1;
-		open (TRUST, "<", $trustfile) || die "$trustfile: $!";
-		while (<TRUST>) {
-			chomp;
-			s/^~\//$ENV{HOME}\//;
-			$trusted{abs_path($_)}=1;
+		if (open (TRUST, "<", $trustfile)) {
+			while (<TRUST>) {
+				chomp;
+				s/^~\//$ENV{HOME}\//;
+				$trusted{abs_path($_)}=1;
+			}
+			close TRUST;
 		}
-		close TRUST;
 	}
 
 	return $trusted{$config};
@@ -947,7 +1094,7 @@ sub is_trusted_checkout {
 					is_trusted_repo($words[$c])
 				);
 			}
-			elsif (defined $words[$c] && $twords[$c] eq $words[$c]) {
+			elsif (defined $words[$c] && $words[$c]=~/^($twords[$c])$/) {
 				$match=1;
 			}
 			else {
@@ -960,10 +1107,25 @@ sub is_trusted_checkout {
 	return 0;
 }
 
+sub trusterror {
+	my ($err, $file, $line, $url)=@_;
+	
+	if (defined $url) {
+		die "$err in untrusted $url line $line\n".
+			"(To trust this url, --trust-all can be used; but please use caution;\n".
+			"this can allow arbitrary code execution!)\n";
+	}
+	else {
+		die "$err in untrusted $file line $line\n".
+			"(To trust this file, list it in ~/.mrtrust.)\n";
+	}
+}
+
 my %loaded;
 sub loadconfig {
 	my $f=shift;
 	my $dir=shift;
+	my $bootstrap_url=shift;
 
 	my @toload;
 
@@ -975,10 +1137,6 @@ sub loadconfig {
 		$trusted=1;
 	}
 	else {
-		if (! -e $f) {
-			return;
-		}
-
 		my $absf=abs_path($f);
 		if ($loaded{$absf}) {
 			return;
@@ -1013,6 +1171,10 @@ sub loadconfig {
 			}
 		}
 		
+		if (! -e $f) {
+			return;
+		}
+
 		print "mr: loading config $f\n" if $verbose;
 		open($in, "<", $f) || die "mr: open $f: $!\n";
 	}
@@ -1020,11 +1182,43 @@ sub loadconfig {
 	close $in unless ref $f eq 'GLOB';
 
 	my $section;
+
+	# Keep track of the current line in the config file;
+	# when a file is included track the current line from the include.
 	my $line=0;
+	my $included=undef;
+	my $includeline=0;
+	my $nextline = sub {
+		if ($included) {
+			$includeline++;
+			$included--;
+		}
+		else {
+			$included=undef;
+			$includeline=0;
+			$line++;
+		}
+		my $l=shift @lines;
+		chomp $l;
+		return $l
+	};
+	my $lineerror = sub {
+		my $msg=shift;
+		if (defined $included) {
+			die "mr: $f line $line include line $includeline: $msg\n";
+		}
+		else {
+			die "mr: $f line $line: $msg\n";
+		}
+	};
+
 	while (@lines) {
-		$_=shift @lines;
-		$line++;
-		chomp;
+		$_=$nextline->();
+
+		if (! $trusted && /[[:cntrl:]]/) {
+			trusterror("mr: illegal control character", $f, $line, $bootstrap_url);
+		}
+
 		next if /^\s*\#/ || /^\s*$/;
 		if (/^\[([^\]]*)\]\s*$/) {
 			$section=$1;
@@ -1033,7 +1227,7 @@ sub loadconfig {
 				if (! is_trusted_repo($section) ||
 				    $section eq 'ALIAS' ||
 				    $section eq 'DEFAULT') {
-					die "mr: illegal section \"[$section]\" in untrusted $f line $line\n";
+					trusterror("mr: illegal section \"[$section]\"", $f, $line, $bootstrap_url)
 				}
 			}
 			$section=expandenv($section) if $trusted;
@@ -1050,34 +1244,45 @@ sub loadconfig {
 
 			# continued value
 			while (@lines && $lines[0]=~/^\s(.+)/) {
-				shift(@lines);
-				$line++;
 				$value.="\n$1";
 				chomp $value;
+				$nextline->();
 			}
 
 			if (! $trusted) {
-				# Untrusted files can only contain checkout
-				# parameters.
-				if ($parameter ne 'checkout') {
-					die "mr: illegal setting \"$parameter=$value\" in untrusted $f line $line\n";
+				# Untrusted files can only contain a few
+				# settings in specific known-safe formats.
+				if ($parameter eq 'checkout') {
+					if (! is_trusted_checkout($value)) {
+						trusterror("mr: illegal checkout command \"$value\"", $f, $line, $bootstrap_url);
+					}
 				}
-				if (! is_trusted_checkout($value)) {
-					die "mr: illegal checkout command \"$value\" in untrusted $f line $line\n";
+				elsif ($parameter eq 'order') {
+					# not interpreted as a command, so
+					# safe.
+				}
+				elsif ($value eq 'true' || $value eq 'false') {
+					# skip=true , deleted=true etc are
+					# safe.
+				}
+				else {
+					trusterror("mr: illegal setting \"$parameter=$value\"", $f, $line, $bootstrap_url);
 				}
 			}
 
 			if ($parameter eq "include") {
 				print "mr: including output of \"$value\"\n" if $verbose;
-				unshift @lines, `$value`;
+				my @inc=`$value`;
 				if ($?) {
 					print STDERR "mr: include command exited nonzero ($?)\n";
 				}
+				$included += @inc;
+				unshift @lines, @inc;
 				next;
 			}
 
 			if (! defined $section) {
-				die "$f line $.: parameter ($parameter) not in section\n";
+				$lineerror->("parameter ($parameter) not in section");
 			}
 			if ($section eq 'ALIAS') {
 				$alias{$parameter}=$value;
@@ -1094,31 +1299,36 @@ sub loadconfig {
 					$knownactions{$parameter}=1;
 				}
 				if ($parameter eq 'chain' &&
-				    length $dir && $section ne "DEFAULT" &&
-				    -e $dir.$section."/.mrconfig") {
-					my $ret=system($value);
-					if ($ret != 0) {
-						if (($? & 127) == 2) {
-							print STDERR "mr: chain test interrupted\n";
-							exit 2;
+				    length $dir && $section ne "DEFAULT") {
+					my $chaindir="$section";
+					if ($chaindir !~ m!^/!) {
+						$chaindir=$dir.$chaindir;
+					}
+					if (-e "$chaindir/.mrconfig") {
+						my $ret=system($value);
+						if ($ret != 0) {
+							if (($? & 127) == 2) {
+								print STDERR "mr: chain test interrupted\n";
+								exit 2;
+							}
+							elsif ($? & 127) {
+								print STDERR "mr: chain test received signal ".($? & 127)."\n";
+							}
 						}
-						elsif ($? & 127) {
-							print STDERR "mr: chain test received signal ".($? & 127)."\n";
+						else {
+							push @toload, ["$chaindir/.mrconfig", $chaindir];
 						}
 					}
-					else {
-						push @toload, $dir.$section."/.mrconfig";
-					}
 			        }
 			}
 		}
 		else {
-			die "$f line $line: parse error\n";
+			$lineerror->("parse error");
 		}
 	}
 
-	foreach (@toload) {
-		loadconfig($_);
+	foreach my $c (@toload) {
+		loadconfig(@$c);
 	}
 }
 
@@ -1342,7 +1552,7 @@ sub register {
 	$ENV{MR_REPO}=~s/.*\/(.*)/$1/;
 	$command="set -e; ".$config{$directory}{DEFAULT}{lib}."\n".
 		"my_action(){ $command\n }; my_action ".
-		join(" ", map { s/\//\/\//g; s/"/\"/g; '"'.$_.'"' } @ARGV);
+		join(" ", map { s/\\/\\\\/g; s/"/\"/g; '"'.$_.'"' } @ARGV);
 	print "mr register: running >>$command<<\n" if $verbose;
 	exec($command) || die "exec: $!";
 }
@@ -1374,7 +1584,7 @@ sub bootstrap {
 	# would normally be skipped.
 	my $topdir=abs_path(".")."/";
 	my @repo=($topdir, $topdir, ".");
-	loadconfig($tmpconfig, $topdir);
+	loadconfig($tmpconfig, $topdir, $url);
 	record(\@repo, action("checkout", @repo, 1))
 		if exists $config{$topdir}{"."}{"checkout"};
 
@@ -1421,7 +1631,7 @@ sub expandaction {
 	return $action;
 }
 
-sub find_nearest_mrconfig {
+sub find_mrconfig {
 	my $dir=getcwd();
 	while (length $dir) {
 		if (-e "$dir/.mrconfig") {
@@ -1429,7 +1639,7 @@ sub find_nearest_mrconfig {
 		}
 		$dir=~s/\/[^\/]*$//;
 	}
-	die "no .mrconfig found in path\n";
+	return "$ENV{HOME}/.mrconfig";
 }
 
 sub getopts {
@@ -1438,7 +1648,7 @@ sub getopts {
 	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 },
+		"p|path" => sub { }, # now default, ignore
 		"v|verbose" => \$verbose,
 		"q|quiet" => \$quiet,
 		"s|stats" => \$stats,
@@ -1488,9 +1698,6 @@ sub exitstats {
 	if (@failed) {
 		exit 1;
 	}
-	elsif (! @ok && @skipped) {
-		exit 1;
-	}
 	else {
 		exit 0;
 	}
@@ -1501,6 +1708,7 @@ sub main {
 	init();
 
 	startingconfig();
+	loadconfig("$ENV{HOME}/.mrconfig");
 	loadconfig($ENV{MR_CONFIG});
 	#use Data::Dumper; print Dumper(\%config);
 	
@@ -1536,7 +1744,7 @@ lib =
 		if [ -z "$1" ] || [ -z "$2" ]; then
 			error "mr: usage: hours_since action num"
 		fi
-		for dir in .git .svn .bzr CVS .hg _darcs; do
+		for dir in .git .svn .bzr CVS .hg _darcs _FOSSIL_; do
 			if [ -e "$MR_REPO/$dir" ]; then
 				flagfile="$MR_REPO/$dir/.mr_last$1"
 				break
@@ -1547,10 +1755,20 @@ lib =
 		fi
 		delta=`perl -wle 'print -f shift() ? int((-M _) * 24) : 9999' "$flagfile"`
 		if [ "$delta" -lt "$2" ]; then
-			exit 0
+			return 1
 		else
 			touch "$flagfile"
-			exit 1
+			return 0
+		fi
+	}
+	is_bzr_checkout() {
+		LANG=C bzr info | egrep -q '^Checkout'
+	}
+	lazy() {
+		if [ "$MR_ACTION" = checkout ] || [ -d "$MR_REPO" ]; then
+			return 1
+		else
+			return 0
 		fi
 	}
 
@@ -1560,6 +1778,7 @@ bzr_test = test -d "$MR_REPO"/.bzr
 cvs_test = test -d "$MR_REPO"/CVS
 hg_test  = test -d "$MR_REPO"/.hg
 darcs_test = test -d "$MR_REPO"/_darcs
+fossil_test = test -f "$MR_REPO"/_FOSSIL_
 git_bare_test =
 	test -d "$MR_REPO"/refs/heads && test -d "$MR_REPO"/refs/tags &&
 	test -d "$MR_REPO"/objects && test -f "$MR_REPO"/config &&
@@ -1567,29 +1786,48 @@ git_bare_test =
 
 svn_update = svn update "$@"
 git_update = git pull "$@"
-bzr_update = bzr merge --pull "$@"
+bzr_update = 
+	if is_bzr_checkout; then
+		bzr update "$@"
+	else
+		bzr merge --pull "$@"
+	fi
 cvs_update = cvs update "$@"
 hg_update  = hg pull "$@" && hg update "$@"
 darcs_update = darcs pull -a "$@"
+fossil_update = fossil pull "$@"
 
 svn_status = svn status "$@"
-git_status = git status "$@" || true
-bzr_status = bzr status "$@"
+git_status = git status -s "$@" || true
+bzr_status = bzr status --short "$@"
 cvs_status = cvs status "$@"
 hg_status  = hg status "$@"
 darcs_status = darcs whatsnew -ls "$@" || true
+fossil_status = fossil changes "$@"
 
 svn_commit = svn commit "$@"
 git_commit = git commit -a "$@" && git push --all
-bzr_commit = bzr commit "$@" && bzr push
+bzr_commit = 
+	if is_bzr_checkout; then
+		bzr commit "$@"
+	else
+		bzr commit "$@" && bzr push
+	fi
 cvs_commit = cvs commit "$@"
 hg_commit  = hg commit -m "$@" && hg push
 darcs_commit = darcs record -a -m "$@" && darcs push -a
+fossil_commit = fossil commit "$@"
 
 git_record = git commit -a "$@"
-bzr_record = bzr commit "$@"
+bzr_record =
+	if is_bzr_checkout; then
+		bzr commit --local "$@"
+	else
+		bzr commit "$@"
+	fi
 hg_record  = hg commit -m "$@"
 darcs_record = darcs record -a -m "$@"
+fossil_record = fossil commit "$@"
 
 svn_push = :
 git_push = git push "$@"
@@ -1597,6 +1835,7 @@ bzr_push = bzr push "$@"
 cvs_push = :
 hg_push = hg push "$@"
 darcs_push = darcs push -a "$@"
+fossil_push = fossil push "$@"
 
 svn_diff = svn diff "$@"
 git_diff = git diff "$@"
@@ -1604,6 +1843,7 @@ bzr_diff = bzr diff "$@"
 cvs_diff = cvs diff "$@"
 hg_diff  = hg diff "$@"
 darcs_diff = darcs diff -u "$@"
+fossil_diff = fossil diff "$@"
 
 svn_log = svn log "$@"
 git_log = git log "$@"
@@ -1612,6 +1852,9 @@ cvs_log = cvs log "$@"
 hg_log  = hg log "$@"
 darcs_log = darcs changes "$@"
 git_bare_log = git log "$@"
+fossil_log = fossil timeline "$@"
+
+run = "$@"
 
 svn_register =
 	url=`LC_ALL=C svn info . | grep -i '^URL:' | cut -d ' ' -f 2`
@@ -1633,7 +1876,7 @@ bzr_register =
 		error "cannot determine bzr url"
 	fi
 	echo "Registering bzr url: $url in $MR_CONFIG"
-	mr -c "$MR_CONFIG" config "`pwd`" checkout="bzr clone '$url' '$MR_REPO'"
+	mr -c "$MR_CONFIG" config "`pwd`" checkout="bzr branch '$url' '$MR_REPO'"
 cvs_register =
 	repo=`cat CVS/Repository`
 	root=`cat CVS/Root`
@@ -1657,15 +1900,21 @@ git_bare_register =
 	fi
 	echo "Registering git url: $url in $MR_CONFIG"
 	mr -c "$MR_CONFIG" config "`pwd`" checkout="git clone --bare '$url' '$MR_REPO'"
+fossil_register =
+	url=`fossil remote-url`
+	repo=`fossil info | grep repository | sed -e 's/repository:*.//g' -e 's/ //g'`
+	echo "Registering fossil repository $url in $MR_CONFIG"
+	mr -c "$MR_CONFIG" config "`pwd`" checkout="mkdir -p '$MR_REPO' && cd '$MR_REPO' && fossil open '$repo'"
 
 svn_trusted_checkout = svn co $url $repo
 svn_alt_trusted_checkout = svn checkout $url $repo
 git_trusted_checkout = git clone $url $repo
-bzr_trusted_checkout = bzr clone $url $repo
+bzr_trusted_checkout = bzr checkout|clone|branch|get $url $repo
 # cvs: too hard
 hg_trusted_checkout = hg clone $url $repo
 darcs_trusted_checkout = darcs get $url $repo
 git_bare_trusted_checkout = git clone --bare $url $repo
+# fossil: messy to do
 
 
 help =