#!/usr/bin/perl
+#man{{{
+
=head1 NAME
mr - a Multiple Repository management tool
B<mr> [options] commit [-m "message"]
+B<mr> [options] diff
+
+B<mr> [options] log
+
+B<mr> [options] register [repository]
+
+B<mr> [options] config section ["parameter=[value]" ...]
+
B<mr> [options] action [params ...]
=head1 DESCRIPTION
-B<mr> is a Multiple Repository management tool. It allows you to register a
-set of repositories in a .mrconfig file, and then checkout, update, or
-perform other actions on all of the repositories at once.
+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
+respository. It supports any combination of subversion, git, cvs, mecurial,
+bzr and darcs repositories, and support for other revision control systems can
+easily be added.
-Any mix of revision control systems can be used with B<mr>, and you can
-define arbitrary actions for commands like "update", "checkout", or "commit".
+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
+contains no other registered repositories, it will stay in that directory,
+and work on only that repository,
-The predefined commands should be fairly familiar to users of any revision
+These predefined commands should be fairly familiar to users of any revision
control system:
=over 4
-=item checkout
+=item checkout (or co)
-Checks out all the registered repositories that are not already checked
-out.
+Checks out any repositories that are not already checked out.
=item update
-Updates each registered repository from its configured remote repository.
+Updates each repository from its configured remote repository.
If a repository isn't checked out yet, it will first check it out.
=item status
-Displays a status report for each registered repository, showing what
+Displays a status report for each repository, showing what
uncommitted changes are present in the repository.
-=item commit
+=item commit (or ci)
-Commits changes to each registered repository. (By default, changes
-are pushed to the remote repository too, when using distributed systems
-like git.)
+Commits changes to each repository. (By default, changes are pushed to the
+remote repository too, when using distributed systems like git.)
The optional -m parameter allows specifying a commit message.
+=item diff
+
+Show a diff of uncommitted changes.
+
+=item log
+
+Show the commit log.
+
+=back
+
+These commands are also available:
+
+=over 4
+
+=item list (or ls)
+
+List the repositories that mr will act on.
+
+=item register
+
+Register an existing repository in a mrconfig file. By default, the
+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.
+
+=item config
+
+Adds, modifies, removes, or prints a value from a mrconfig file. The next
+parameter is the name of the section the value is in. To add or modify
+values, use one or more instances of "parameter=value". Use "parameter=" to
+remove a parameter. Use just "parameter" to get the value of a parameter.
+
+For example, to add (or edit) a repository in src/foo:
+
+ mr config src/foo checkout="svn co svn://example.com/foo/trunk foo"
+
+To show the command that mr uses to update the repository in src/foo:
+
+ mr config src/foo update
+
+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.
+
+=item help
+
+Displays this help.
+
=back
Actions can be abbreviated to any unambiguous subsctring, so
-"mr st" is equivilant to "mr status".
+"mr st" is equivilant to "mr status", and "mr up" is equivilant to "mr
+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
+system.
=head1 OPTIONS
=item -d directory
Specifies the topmost directory that B<mr> should work in. The default is
-the current working directory. B<mr> will operate on all registered
-repositories at or under the directory.
+the current working directory.
=item -c mrconfig
-Use the specified mrconfig file, instead of looking for on in your home
-directory.
+Use the specified mrconfig file. The default is B<~/.mrconfig>
=item -v
Be verbose.
+=item -s
+
+Expand the statistics line displayed at the end to include information
+about exactly which repositories failed and were skipped, if any.
+
+=item -n
+
+Just operate on the repository for the current directory, do not
+recurse into deeper repositories.
+
+=item -j number
+
+Run the specified number of jobs in parallel. This can greatly speed up
+operations such as updates. It is not recommended for interactive
+operations.
+
=back
=head1 FILES
-B<mr> is configured by .mrconfig files. It searches for .mrconfig files in
-your home directory, and in the root directory of each repository specified
-in a .mrconfig file. So you could have a ~/.mrconfig that registers a
-repository ~/src, that itself contains a ~/src/.mrconfig file, that in turn
-registers several additional repositories.
+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.
+
+Here is an example .mrconfig file:
+
+ [src]
+ checkout = svn co svn://svn.example.com/src/trunk src
+ chain = true
+
+ [src/linux-2.6]
+ checkout = git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git &&
+ cd linux-2.6 &&
+ git checkout -b mybranch origin/master
The .mrconfig file uses a variant of the INI file format. Lines starting with
-"#" are comments. Lines ending with "\" are continued on to the next line.
-Sections specify where each repository is located, relative to the
-directory that contains the .mrconfig file.
+"#" are comments. Values can be continued to the following line by
+indenting the line with whitespace.
+
+The "DEFAULT" section allows setting default values for the sections that
+come after it.
+
+The "ALIAS" section allows adding aliases for actions. Each parameter
+is an alias, and its value is the action to use.
+
+All other sections add repositories. The section header specifies the
+directory where the repository is located. This is relative to the directory
+that contains the mrconfig file, but you can also choose to use absolute
+paths.
Within a section, each parameter defines a shell command to run to handle a
-given action. Note that these shell commands are run in a "set -e" shell
+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".
+
+Note that these shell commands are run in a "set -e" shell
environment, where any additional parameters you pass are available in
-"$@". B<mr> cds into the repository directory before running
-a command, except for the "checkout" command, which is run in the parent
-of the repository directory, since the repository isn't checked out yet.
+"$@". 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.
-There are two special parameters. If the "skip" parameter is set and
-its command returns nonzero, then B<mr> will skip acting on that repository.
+The "MR_REPO" environment variable is set to the path to the top of the
+repository. 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 "default" section allows setting up default handlers for each action,
-and is overridden by the contents of other sections. mr contains default
-handlers for the "update", "status", and "commit" actions, so normally
-you only need to specify what to do for "checkout".
+A few parameters have special meanings:
-For example:
+=over 4
- [src]
- checkout = svn co svn://svn.example.com/src/trunk src
+=item skip
- [src/linux-2.6]
- # only check this out on kodama
- skip = test $(hostname) != kodama
- checkout = git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
+If the "skip" parameter is set and its command returns true, then B<mr>
+will skip acting on that repository. The command is passed the action
+name in $1.
+
+Here are two examples. The first skips the repo unless
+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.
+
+ skip = test $(whoami) != joey
+ skip = [ "$1" = update ] && ! hours_since "$1" 12
+
+=item order
+
+The "order" parameter can be used to override the default ordering of
+repositories. The default order value is 10. Use smaller values to make
+repositories be processed earlier, and larger values to make repositories
+be processed later.
+
+Note that if a repository is located in a subdirectory of another
+repository, ordering it to be processed earlier is not recommended.
+
+=item chain
+
+If the "chain" parameter is set and its command returns true, then B<mr>
+will try to load a .mrconfig file from the root of the repository. (You
+should avoid chaining from repositories with untrusted committers.)
+
+=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.
+
+=back
=head1 AUTHOR
=cut
+#}}}
+
use warnings;
use strict;
use Getopt::Long;
use Cwd qw(getcwd abs_path);
-
-my $directory=getcwd();
-my $config="$ENV{HOME}/.mrconfig";
+use POSIX "WNOHANG";
+use constant {
+ OK => 0,
+ FAILED => 1,
+ SKIPPED => 2,
+ ABORT => 3,
+};
+
+$SIG{INT}=sub {
+ print STDERR "mr: interrupted\n";
+ exit 2;
+};
+
+$ENV{MR_CONFIG}="$ENV{HOME}/.mrconfig";
+my $config_overridden=0;
my $verbose=0;
+my $stats=0;
+my $no_recurse=0;
+my $jobs=1;
my %config;
+my %configfiles;
my %knownactions;
+my %alias;
+my $directory=getcwd();
Getopt::Long::Configure("no_permute");
my $result=GetOptions(
- "d=s" => sub { $directory=abs_path($_[1]) },
- "c=s" => \$config,
- "v" => \$verbose,
+ "d|directory=s" => sub { $directory=abs_path($_[1]) },
+ "c|config=s" => sub { $ENV{MR_CONFIG}=$_[1]; $config_overridden=1 },
+ "v|verbose" => \$verbose,
+ "s|stats" => \$stats,
+ "n|no-recurse" => \$no_recurse,
+ "j|jobs=i" => \$jobs,
);
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");
+
+}
+if (! defined $directory) {
+ die("mr: failed to determine working directory\n");
}
+# Make sure MR_CONFIG is an absolute path, but don't use abs_path since
+# the config file might be a symlink to elsewhere, and the directory it's
+# in is significant.
+if ($ENV{MR_CONFIG} !~ /^\//) {
+ $ENV{MR_CONFIG}=getcwd()."/".$ENV{MR_CONFIG};
+}
+# Try to set MR_PATH to the path to the program.
+eval {
+ use FindBin qw($Bin $Script);
+ $ENV{MR_PATH}=$Bin."/".$Script;
+};
+
loadconfig(\*DATA);
-loadconfig($config);
+loadconfig($ENV{MR_CONFIG});
#use Data::Dumper;
#print Dumper(\%config);
+# alias expansion and command stemming
my $action=shift @ARGV;
-if (! $knownactions{$action}) {
- my @matches = grep { /^\Q$action\E/ } keys %knownactions;
+if (exists $alias{$action}) {
+ $action=$alias{$action};
+}
+if (! exists $knownactions{$action}) {
+ my @matches = grep { /^\Q$action\E/ }
+ keys %knownactions, keys %alias;
if (@matches == 1) {
$action=$matches[0];
}
+ elsif (@matches == 0) {
+ die "mr: unknown action \"$action\" (known actions: ".
+ join(", ", sort keys %knownactions).")\n";
+ }
else {
- die "mr: ambiguous action \"$action\" (matches @matches)\n";
+ die "mr: ambiguous action \"$action\" (matches: ".
+ join(", ", @matches).")\n";
}
}
-my (@failed, @successful, @skipped);
-my $first=1;
-foreach my $topdir (sort keys %config) {
- foreach my $subdir (sort keys %{$config{$topdir}}) {
- next if $subdir eq 'default';
-
- my $dir=$topdir.$subdir;
-
- if (defined $directory &&
- $dir ne $directory &&
- $dir !~ /^\Q$directory\E\//) {
- print "mr $action: $dir skipped per -d parameter ($directory)\n" if $verbose;
- push @skipped, $dir;
- next;
+# commands that do not operate on all repos
+if ($action eq 'help') {
+ exec($config{''}{DEFAULT}{$action}) || die "exec: $!";
+}
+elsif ($action eq 'config') {
+ if (@ARGV < 2) {
+ die "mr config: not enough parameters\n";
+ }
+ my $section=shift;
+ if ($section=~/^\//) {
+ # try to convert to a path relative to the config file
+ my ($dir)=$ENV{MR_CONFIG}=~/^(.*\/)[^\/]+$/;
+ $dir=abs_path($dir);
+ $dir.="/" unless $dir=~/\/$/;
+ if ($section=~/^\Q$dir\E(.*)/) {
+ $section=$1;
}
-
- print "\n" unless $first;
- $first=0;
-
- if (exists $config{$topdir}{$subdir}{skip}) {
- my $ret=system($config{$topdir}{$subdir}{skip});
- if ($ret >> 8 == 0) {
- print "mr $action: $dir skipped per config file\n" if $verbose;
- push @skipped, $dir;
- next;
+ }
+ my %changefields;
+ foreach (@ARGV) {
+ if (/^([^=]+)=(.*)$/) {
+ $changefields{$1}=$2;
+ }
+ else {
+ my $found=0;
+ foreach my $topdir (sort keys %config) {
+ if (exists $config{$topdir}{$section} &&
+ exists $config{$topdir}{$section}{$_}) {
+ print $config{$topdir}{$section}{$_}."\n";
+ $found=1;
+ last if $section eq 'DEFAULT';
+ }
+ }
+ if (! $found) {
+ die "mr $action: $section $_ not set\n";
+ }
+ }
+ }
+ modifyconfig($ENV{MR_CONFIG}, $section, %changefields) if %changefields;
+ exit 0;
+}
+elsif ($action eq 'register') {
+ if (! $config_overridden) {
+ # Find the closest known mrconfig file to the current
+ # directory.
+ $directory.="/" unless $directory=~/\/$/;
+ foreach my $topdir (reverse sort keys %config) {
+ next unless length $topdir;
+ if ($directory=~/^\Q$topdir\E/) {
+ $ENV{MR_CONFIG}=$configfiles{$topdir};
+ last;
}
}
+ }
+ my $command="set -e; ".$config{''}{DEFAULT}{lib}."\n".
+ "my_action(){ $config{''}{DEFAULT}{$action}\n }; my_action ".
+ join(" ", map { s/\//\/\//g; s/"/\"/g; '"'.$_.'"' } @ARGV);
+ print STDERR "mr $action: running >>$command<<\n" if $verbose;
+ exec($command) || die "exec: $!";
+}
- action($action, $dir, $topdir, $subdir);
+# an ordered list of repos
+my @list;
+foreach my $topdir (sort keys %config) {
+ foreach my $subdir (sort keys %{$config{$topdir}}) {
+ push @list, {
+ topdir => $topdir,
+ subdir => $subdir,
+ order => $config{$topdir}{$subdir}{order},
+ };
+ }
+}
+@list = sort {
+ $a->{order} <=> $b->{order}
+ ||
+ $a->{topdir} cmp $b->{topdir}
+ ||
+ $a->{subdir} cmp $b->{subdir}
+ } @list;
+
+# work out what repos to act on
+my @repos;
+my $nochdir=0;
+foreach my $repo (@list) {
+ my $topdir=$repo->{topdir};
+ my $subdir=$repo->{subdir};
+
+ next if $subdir eq 'DEFAULT';
+ my $dir=($subdir =~/^\//) ? $subdir : $topdir.$subdir;
+ my $d=$directory;
+ $dir.="/" unless $dir=~/\/$/;
+ $d.="/" unless $d=~/\/$/;
+ next if $no_recurse && $d ne $dir;
+ next if $dir ne $d && $dir !~ /^\Q$d\E/;
+ push @repos, [$dir, $topdir, $subdir];
+}
+if (! @repos) {
+ # fallback to find a leaf repo
+ foreach my $repo (reverse @list) {
+ my $topdir=$repo->{topdir};
+ my $subdir=$repo->{subdir};
+
+ next if $subdir eq 'DEFAULT';
+ my $dir=($subdir =~/^\//) ? $subdir : $topdir.$subdir;
+ my $d=$directory;
+ $dir.="/" unless $dir=~/\/$/;
+ $d.="/" unless $d=~/\/$/;
+ if ($d=~/^\Q$dir\E/) {
+ push @repos, [$dir, $topdir, $subdir];
+ last;
+ }
+ }
+ $nochdir=1;
+}
+# run the action on each repository and print stats
+my (@ok, @failed, @skipped);
+if ($jobs > 1) {
+ mrs(@repos);
+}
+else {
+ foreach my $repo (@repos) {
+ record($repo, action($action, @$repo));
+ }
+}
+if (! @ok && ! @failed && ! @skipped) {
+ die "mr $action: no repositories found to work on\n";
+}
+print "mr $action: finished (".join("; ",
+ showstat($#ok+1, "ok", "ok"),
+ showstat($#failed+1, "failed", "failed"),
+ showstat($#skipped+1, "skipped", "skipped"),
+).")\n";
+if ($stats) {
+ if (@skipped) {
+ print "mr $action: (skipped: ".join(" ", @skipped).")\n";
+ }
+ if (@failed) {
+ print STDERR "mr $action: (failed: ".join(" ", @failed).")\n";
}
}
+if (@failed) {
+ exit 1;
+}
+elsif (! @ok && @skipped) {
+ exit 1;
+}
+exit 0;
-sub action {
+sub action { #{{{
my ($action, $dir, $topdir, $subdir) = @_;
+ $ENV{MR_CONFIG}=$configfiles{$topdir};
+ my $lib=exists $config{$topdir}{$subdir}{lib} ?
+ $config{$topdir}{$subdir}{lib}."\n" : "";
+
if ($action eq 'checkout') {
if (-d $dir) {
- print "mr $action: $dir already exists, skipping checkout\n";
- push @skipped, $dir;
- next;
+ print "mr $action: $dir already exists, skipping checkout\n" if $verbose;
+ return SKIPPED;
}
+
$dir=~s/^(.*)\/[^\/]+\/?$/$1/;
+
+ if (! -d $dir) {
+ print "mr $action: creating parent directory $dir\n" if $verbose;
+ system("mkdir", "-p", $dir);
+ }
}
- if ($action eq 'update') {
+ elsif ($action =~ /update/) {
if (! -d $dir) {
return action("checkout", $dir, $topdir, $subdir);
}
}
-
- if (! chdir($dir)) {
+
+ $ENV{MR_REPO}=$dir;
+
+ if (exists $config{$topdir}{$subdir}{skip}) {
+ my $test="set -e;".$lib.
+ "my_action(){ $config{$topdir}{$subdir}{skip}\n }; my_action '$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 (! $nochdir && ! chdir($dir)) {
print STDERR "mr $action: failed to chdir to $dir: $!\n";
- push @skipped, $dir;
+ return FAILED;
}
elsif (! exists $config{$topdir}{$subdir}{$action}) {
print STDERR "mr $action: no defined $action command for $topdir$subdir, skipping\n";
- push @skipped, $dir;
+ return SKIPPED;
}
else {
- print "mr $action: in $dir\n";
- my $command="set -e; my_action(){ $config{$topdir}{$subdir}{$action} ; }; my_action ".
+ if (! $nochdir) {
+ print "mr $action: $topdir$subdir\n";
+ }
+ else {
+ my $s=$directory;
+ $s=~s/^\Q$topdir$subdir\E\/?//;
+ print "mr $action: $topdir$subdir (in subdir $s)\n";
+ }
+ my $command="set -e; ".$lib.
+ "my_action(){ $config{$topdir}{$subdir}{$action}\n }; my_action ".
join(" ", map { s/\//\/\//g; s/"/\"/g; '"'.$_.'"' } @ARGV);
+ print STDERR "mr $action: running >>$command<<\n" if $verbose;
my $ret=system($command);
if ($ret != 0) {
- print STDERR "mr $action: failed to run: $command\n" if $verbose;
- push @failed, $topdir.$subdir;
+ if (($? & 127) == 2) {
+ print STDERR "mr $action: interrupted\n";
+ return ABORT;
+ }
+ elsif ($? & 127) {
+ print STDERR "mr $action: received signal ".($? & 127)."\n";
+ return ABORT;
+ }
+ print STDERR "mr $action: failed ($ret)\n" if $verbose;
if ($ret >> 8 != 0) {
print STDERR "mr $action: command failed\n";
}
elsif ($ret != 0) {
print STDERR "mr $action: command died ($ret)\n";
}
+ return FAILED;
}
else {
- push @successful, $dir;
+ if ($action eq 'checkout' && ! -d $dir) {
+ print STDERR "mr $action: $dir missing after checkout\n";;
+ return FAILED;
+ }
+
+ return OK;
}
}
-}
+} #}}}
+
+# run actions on multiple repos, in parallel
+sub mrs { #{{{
+ $| = 1;
+ my @active;
+ my @fhs;
+ my @out;
+ my $running=0;
+ while (@fhs or @repos) {
+ while ($running < $jobs && @repos) {
+ $running++;
+ my $repo = shift @repos;
+ pipe(my $outfh, CHILD_STDOUT);
+ pipe(my $errfh, CHILD_STDERR);
+ my $pid;
+ unless ($pid = fork) {
+ die "mr $action: cannot fork: $!" unless defined $pid;
+ open(STDOUT, ">&CHILD_STDOUT") || die "mr $action cannot reopen stdout: $!";
+ open(STDERR, ">&CHILD_STDERR") || die "mr $action cannot reopen stderr: $!";
+ close CHILD_STDOUT;
+ close CHILD_STDERR;
+ close $outfh;
+ close $errfh;
+ exit action($action, @$repo);
+ }
+ close CHILD_STDOUT;
+ close CHILD_STDERR;
+ push @active, [$pid, $repo];
+ push @fhs, [$outfh, $errfh];
+ push @out, ['', ''];
+ }
+ my ($rin, $rout) = ('','');
+ my $nfound;
+ foreach my $fh (@fhs) {
+ next unless defined $fh;
+ vec($rin, fileno($fh->[0]), 1) = 1 if defined $fh->[0];
+ vec($rin, fileno($fh->[1]), 1) = 1 if defined $fh->[1];
+ }
+ $nfound = select($rout=$rin, undef, undef, 1);
+ foreach my $channel (0, 1) {
+ foreach my $i (0..$#fhs) {
+ next unless defined $fhs[$i];
+ my $fh = $fhs[$i][$channel];
+ next unless defined $fh;
+ if (vec($rout, fileno($fh), 1) == 1) {
+ my $r = '';
+ if (sysread($fh, $r, 1024) == 0) {
+ close($fh);
+ $fhs[$i][$channel] = undef;
+ if (! defined $fhs[$i][0] &&
+ ! defined $fhs[$i][1]) {
+ waitpid($active[$i][0], 0);
+ print STDOUT $out[$i][0];
+ print STDERR $out[$i][1];
+ record($active[$i][1], $? >> 8);
+ splice(@fhs, $i, 1);
+ splice(@active, $i, 1);
+ splice(@out, $i, 1);
+ $running--;
+ }
+ }
+ $out[$i][$channel] .= $r;
+ }
+ }
+ }
+ }
+} #}}}
+
+sub record { #{{{
+ my $dir=shift()->[0];
+ my $ret=shift;
+
+ if ($ret == OK) {
+ push @ok, $dir;
+ print "\n";
+ }
+ elsif ($ret == FAILED) {
+ push @failed, $dir;
+ print "\n";
+ }
+ elsif ($ret == SKIPPED) {
+ push @skipped, $dir;
+ }
+ elsif ($ret == ABORT) {
+ exit 1;
+ }
+ else {
+ die "unknown exit status $ret";
+ }
+} #}}}
-sub showstat {
+sub showstat { #{{{
my $count=shift;
my $singular=shift;
my $plural=shift;
return "$count ".($count > 1 ? $plural : $singular);
}
return;
-}
-print "\nmr $action: finished (".join("; ",
- showstat($#successful+1, "successful", "successful"),
- showstat($#failed+1, "failed", "failed"),
- showstat($#skipped+1, "skipped", "skipped"),
-).")\n";
-exit @failed ? 1 : 0;
+} #}}}
my %loaded;
-sub loadconfig {
+sub loadconfig { #{{{
my $f=shift;
my @toload;
my $in;
my $dir;
if (ref $f eq 'GLOB') {
- $in=$f;
$dir="";
+ $in=$f;
}
else {
- # $f might be a symlink
+ if (! -e $f) {
+ return;
+ }
+
my $absf=abs_path($f);
if ($loaded{$absf}) {
return;
}
$loaded{$absf}=1;
- print "mr: loading config $f\n" if $verbose;
- open($in, "<", $f) || die "mr: open $f: $!\n";
($dir)=$f=~/^(.*\/)[^\/]+$/;
if (! defined $dir) {
$dir=".";
}
$dir=abs_path($dir)."/";
+
+ if (! exists $configfiles{$dir}) {
+ $configfiles{$dir}=$f;
+ }
# copy in defaults from first parent
my $parent=$dir;
- while ($parent=~s/^(.*)\/[^\/]+\/?$/$1/) {
+ while ($parent=~s/^(.*\/)[^\/]+\/?$/$1/) {
+ if ($parent eq '/') {
+ $parent="";
+ }
if (exists $config{$parent} &&
- exists $config{$parent}{default}) {
- $config{$dir}{default}={ %{$config{$parent}{default}} };
+ exists $config{$parent}{DEFAULT}) {
+ $config{$dir}{DEFAULT}={ %{$config{$parent}{DEFAULT}} };
last;
}
}
+
+ print "mr: loading config $f\n" if $verbose;
+ open($in, "<", $f) || die "mr: open $f: $!\n";
}
+ my @lines=<$in>;
+ close $in;
my $section;
- while (<$in>) {
+ my $line=0;
+ while (@lines) {
+ $_=shift @lines;
+ $line++;
chomp;
next if /^\s*\#/ || /^\s*$/;
- if (/^\s*\[([^\]]*)\]\s*$/) {
+ if (/^\[([^\]]*)\]\s*$/) {
$section=$1;
- if (length $dir && $section ne "default" &&
- -e $dir.$section."/.mrconfig") {
- push @toload, $dir.$section."/.mrconfig";
- }
}
- elsif (/^\s*(\w+)\s*=\s*(.*)/) {
+ elsif (/^(\w+)\s*=\s*(.*)/) {
my $parameter=$1;
my $value=$2;
- # continuation line
- while ($value=~/(.*)\\$/) {
- $value=$1.<$in>;
+ # continued value
+ while (@lines && $lines[0]=~/^\s(.+)/) {
+ shift(@lines);
+ $line++;
+ $value.="\n$1";
chomp $value;
}
if (! defined $section) {
die "$f line $.: parameter ($parameter) not in section\n";
}
- if (! exists $config{$dir}{$section} &&
- exists $config{$dir}{default}) {
+ if ($section ne 'ALIAS' &&
+ ! exists $config{$dir}{$section} &&
+ exists $config{$dir}{DEFAULT}) {
# copy in defaults
- $config{$dir}{$section}={ %{$config{$dir}{default}} };
+ $config{$dir}{$section}={ %{$config{$dir}{DEFAULT}} };
+ }
+ if ($section eq 'ALIAS') {
+ $alias{$parameter}=$value;
+ }
+ elsif ($parameter eq 'lib') {
+ $config{$dir}{$section}{lib}.=$value."\n";
+ }
+ else {
+ $config{$dir}{$section}{$parameter}=$value;
+ $knownactions{$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 $action: chain test interrupted\n";
+ exit 2;
+ }
+ elsif ($? & 127) {
+ print STDERR "mr $action: chain test received signal ".($? & 127)."\n";
+ }
+ }
+ else {
+ push @toload, $dir.$section."/.mrconfig";
+ }
+ }
}
- $config{$dir}{$section}{$parameter}=$value;
- $knownactions{$parameter}=1;
}
else {
- die "$f line $.: parse error\n";
+ die "$f line $line: parse error\n";
}
}
- close $in;
foreach (@toload) {
loadconfig($_);
}
-}
+} #}}}
-__DATA__
-# Some useful actions that mr knows about by default.
+sub modifyconfig { #{{{
+ my $f=shift;
+ # the section to modify or add
+ my $targetsection=shift;
+ # fields to change in the section
+ # To remove a field, set its value to "".
+ my %changefields=@_;
+
+ my @lines;
+ my @out;
+
+ if (-e $f) {
+ open(my $in, "<", $f) || die "mr: open $f: $!\n";
+ @lines=<$in>;
+ close $in;
+ }
+
+ my $formatfield=sub {
+ my $field=shift;
+ my @value=split(/\n/, shift);
+
+ return "$field = ".shift(@value)."\n".
+ join("", map { "\t$_\n" } @value);
+ };
+ my $addfields=sub {
+ my @blanks;
+ while ($out[$#out] =~ /^\s*$/) {
+ unshift @blanks, pop @out;
+ }
+ foreach my $field (sort keys %changefields) {
+ if (length $changefields{$field}) {
+ push @out, "$field = $changefields{$field}\n";
+ delete $changefields{$field};
+ }
+ }
+ push @out, @blanks;
+ };
+
+ my $section;
+ while (@lines) {
+ $_=shift(@lines);
+
+ if (/^\s*\#/ || /^\s*$/) {
+ push @out, $_;
+ }
+ elsif (/^\[([^\]]*)\]\s*$/) {
+ if (defined $section &&
+ $section eq $targetsection) {
+ $addfields->();
+ }
+
+ $section=$1;
+
+ push @out, $_;
+ }
+ elsif (/^(\w+)\s*=\s(.*)/) {
+ my $parameter=$1;
+ my $value=$2;
+
+ # continued value
+ while (@lines && $lines[0]=~/^\s(.+)/) {
+ shift(@lines);
+ $value.="\n$1";
+ chomp $value;
+ }
+
+ if ($section eq $targetsection) {
+ if (exists $changefields{$parameter}) {
+ if (length $changefields{$parameter}) {
+ $value=$changefields{$parameter};
+ }
+ delete $changefields{$parameter};
+ }
+ }
+
+ push @out, $formatfield->($parameter, $value);
+ }
+ }
+
+ if (defined $section &&
+ $section eq $targetsection) {
+ $addfields->();
+ }
+ elsif (%changefields) {
+ push @out, "\n[$targetsection]\n";
+ foreach my $field (sort keys %changefields) {
+ if (length $changefields{$field}) {
+ push @out, $formatfield->($field, $changefields{$field});
+ }
+ }
+ }
+
+ open(my $out, ">", $f) || die "mr: write $f: $!\n";
+ print $out @out;
+ close $out;
+} #}}}
+
+# Finally, some useful actions that mr knows about by default.
# These can be overridden in ~/.mrconfig.
-[default]
-update = \
- if [ -d .svn ]; then \
- svn update; \
- elif [ -d .git ]; then \
- git pull origin master; \
- else \
- echo "mr update: unknown repo type"; \
- exit 1; \
- fi
-status = \
- if [ -d .svn ]; then \
- svn status; \
- elif [ -d .git ]; then \
- git status || true; \
- else \
- echo "mr status: unknown repo type"; \
- exit 1; \
+#DATA{{{
+__DATA__
+[ALIAS]
+co = checkout
+ci = commit
+ls = list
+
+[DEFAULT]
+order = 10
+lib =
+ PWD="$pwd"
+ error() {
+ echo "mr: $@" >&2
+ exit 1
+ }
+ warning() {
+ echo "mr (warning): $@" >&2
+ }
+ info() {
+ echo "mr: $@" >&2
+ }
+ hours_since() {
+ if [ -z "$1" ] || [ -z "$2" ]; then
+ error "mr: usage: hours_since action num"
+ fi
+ for dir in .git .svn .bzr CVS .hg _darcs; do
+ if [ -e "$MR_REPO/$dir" ]; then
+ flagfile="$MR_REPO/$dir/.mr_last$1"
+ break
+ fi
+ done
+ if [ -z "$flagfile" ]; then
+ error "cannot determine flag filename"
+ fi
+ delta=$(perl -wle 'print -f shift() ? int((-M _) * 24) : 9999' "$flagfile")
+ if [ "$delta" -lt "$2" ]; then
+ exit 0
+ else
+ touch "$flagfile"
+ exit 1
+ fi
+ }
+ get_git_repo_type()
+ {
+ if [ -d "$1"/.git ] && [ -d "$1"/.git/refs/heads ] &&
+ [ -d "$1"/.git/objects ] && [ -f "$1"/.git/config ];
+ then
+ echo non-bare
+ elif [ -d "$1"/refs/heads ] && [ -d "$1"/refs/tags ] &&
+ [ -d "$1"/objects ] && [ -f "$1"/config ]; then
+ local bare
+ bare="$(GIT_CONFIG="$1"/config git-config --get core.bare)"
+ case "$bare" in
+ true) echo bare;;
+ false) echo fake-bare;;
+ *) return 255;;
+ esac
+ else
+ return 1
+ fi
+ }
+ is_git_repo() {
+ get_git_repo_type "$1" >/dev/null
+ }
+ get_repo_type() {
+ if [ -d "$1"/.svn ]; then
+ echo svn
+ elif is_git_repo "$1"; then
+ echo git
+ elif [ -d "$1"/.bzr ]; then
+ echo bzr
+ elif [ -d "$1"/CVS ]; then
+ echo CVS
+ elif [ -d "$1"/.hg ]; then
+ echo hg
+ elif [ -d "$1"/_darcs ]; then
+ echo darcs
+ else
+ echo unknown
+ fi
+ }
+
+update =
+ case "$(get_repo_type "$MR_REPO")" in
+ svn) svn update "$@";;
+ git)
+ # all this is because of a bug in git-fetch, which requires GIT_DIR set
+ local git_dir_override; git_dir_override=.git
+ case "$(get_git_repo_type "$MR_REPO")" in
+ fake-bare) git_dir_override="$MR_REPO";;
+ esac
+ args="$@"
+ [ -z "$args" ] && args="-t origin master"
+ eval GIT_DIR="$git_dir_override" git pull "$args"
+ ;;
+ bzr) bzr merge "$@";;
+ CVS) cvs update "$@";;
+ hg) hg pull "$@" && hg update "$@";;
+ darcs) darcs pull -a "$@";;
+ *) error "unknown repo type";;
+ esac
+
+status =
+ case "$(get_repo_type "$MR_REPO")" in
+ svn) svn status "$@";;
+ git) git status "$@" || :;;
+ bzr) bzr status "$@";;
+ CVS) cvs status "$@";;
+ hg) hg status "$@";;
+ darcs) darcs whatsnew -ls "$@";;
+ *) error "unknown repo type";;
+ esac
+
+commit =
+ case "$(get_repo_type "$MR_REPO")" in
+ svn) svn commit "$@";;
+ git)
+ case "$(get_git_repo_type "$MR_REPO")" in
+ bare) error "cannot commit to bare git repositories";;
+ fake-bare) error "commit does not work for fake bare git repositories (yet).";;
+ esac
+ git commit -a "$@" && git push --all
+ ;;
+ bzr) bzr commit "$@" && bzr push;;
+ CVS) cvs commit "$@";;
+ hg) hg commit -m "$@" && hg push;;
+ darcs) darcs commit -a -m "$@" && darcs push -a;;
+ *) error "unknown repo type";;
+ esac
+
+diff =
+ case "$(get_repo_type "$MR_REPO")" in
+ svn) svn diff "$@";;
+ git)
+ case "$(get_git_repo_type "$MR_REPO")" in
+ bare) error "cannot diff in bare git repositories";;
+ fake-bare) error "diff does not work for fake bare git repositories (yet).";;
+ esac
+ git diff "$@"
+ ;;
+ bzr) bzr diff "$@";;
+ CVS) cvs diff "$@";;
+ hg) hg diff "$@";;
+ darcs) darcs diff "$@";;
+ *) error "unknown repo type";;
+ esac
+
+log =
+ case "$(get_repo_type "$MR_REPO")" in
+ svn) svn log"$@";;
+ git) git log "$@";;
+ bzr) bzr log "$@";;
+ CVS) cvs log "$@";;
+ hg) hg log "$@";;
+ darcs) darcs changes "$@";;
+ *) error "unknown repo type";;
+ esac
+
+register =
+ if [ -n "$1" ]; then
+ cd "$1"
fi
-commit = \
- if [ -d .svn ]; then \
- svn commit "$@"; \
- elif [ -d .git ]; then \
- git commit -a "$@" \
- else \
- echo "mr commit: unknown repo type"; \
- exit 1; \
+ basedir="${PWD##*/}"
+ case "$(get_repo_type .)" in
+ svn)
+ url=$(LANG=C svn info . | grep -i ^URL: | cut -d ' ' -f 2)
+ if [ -z "$url" ]; then
+ error "cannot determine svn url"
+ fi
+ echo "Registering svn url: $url in $MR_CONFIG"
+ mr -c "$MR_CONFIG" config "$PWD" checkout="svn co $url $basedir"
+ ;;
+ git)
+ local repo_type; repo_type="$(get_git_repo_type .)"
+ local config;
+ case "$repo_type" in
+ non-bare) config=.git/config;;
+ bare|fake-bare) config=config;;
+ esac
+ url="$(LANG=C GIT_CONFIG="$config" git-config --get remote.origin.url)" || :
+ if [ -z "$url" ]; then
+ error "cannot determine git url"
+ fi
+ local clone_opts add_cmd work_tree suffix
+ case "$repo_type" in
+ fake-bare)
+ # this seems like a fake bare repo and needs a worktree
+ work_tree="$(git-config --get core.worktree)" || :
+ work_tree="${work_tree%%/}/"
+ if [ ! -d "$work_tree" ]; then
+ error "git worktree '$work_tree' does not exist"
+ fi
+ clone_opts=" --no-checkout"
+ add_cmd="$add_cmd && cd $basedir"
+ add_cmd="$add_cmd && git read-tree HEAD"
+ add_cmd="$add_cmd && git checkout-index -a --prefix='$work_tree' || :"
+ add_cmd="$add_cmd; git config core.worktree '$work_tree'"
+ add_cmd="$add_cmd && mv .git/* . && rmdir .git"
+ suffix=" (with worktree $work_tree)"
+ ;;
+ bare)
+ clone_opts=" --bare"
+ suffix=" (bare repository)"
+ ;;
+ esac
+ echo "Registering git url: $url in $MR_CONFIG${suffix:-}"
+ mr -c "$MR_CONFIG" config "$PWD" checkout="git clone${clone_opts:-} $url $basedir${add_cmd:-}"
+ ;;
+ bzr)
+ url=$(cat .bzr/branch/parent)
+ if [ -z "$url" ]; then
+ error "cannot determine bzr url"
+ fi
+ echo "Registering bzr url: $url in $MR_CONFIG"
+ mr -c "$MR_CONFIG" config "$PWD" checkout="bzr clone $url $basedir"
+ ;;
+ CVS)
+ repo=$(cat CVS/Repository)
+ root=$(cat CVS/Root)
+ if [ -z "$root" ]; then
+ error "cannot determine cvs root"
+ fi
+ echo "Registering cvs repository $repo at root $root"
+ mr -c "$MR_CONFIG" config "$PWD" \
+ checkout="cvs -d '$root' co -d $basedir $repo"
+ ;;
+ hg)
+ url=$(hg showconfig paths.default)
+ echo "Registering mercurial repo url: $url in $MR_CONFIG"
+ mr -c "$MR_CONFIG" config "$PWD" \
+ checkout="hg clone $url $basedir"
+ ;;
+ darcs)
+ url=$(cat _darcs/prefs/defaultrepo)
+ echo "Registering darcs repository $url in $MR_CONFIG"
+ mr -c "$MR_CONFIG" config "$PWD" \
+ checkout="darcs get $url $basedir"
+ ;;
+ *) error "unable to register this repo type";;
+ esac
+
+help =
+ if [ ! -e "$MR_PATH" ]; then
+ error "cannot find program path"
fi
+ (pod2man -c mr "$MR_PATH" | man -l -) || error "pod2man or man failed"
+list = true
+config =
+
+ed = echo "A horse is a horse, of course, of course.."
+T = echo "I pity the fool."
+right = echo "Not found."
+#}}}
+
+# vim:sw=8:sts=0:ts=8:noet
projects / code / myrepos.git / blobdiff