update changelog

[code/myrepos.git] / mr

diff --git a/mr b/mr
index 53f7a068c9b437efd249a1de87f9699aab4db459..80ccc78eef899c9388787665d574ef478253224e 100755 (executable)
--- a/mr
+++ b/mr
@@ -86,16 +86,16 @@ List the repositories that mr will act on.
 
 =item register
 
-Register an existing repository in the mrconfig file. By default, the
+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.
 
-By default it registers it to the ~/.mrconfig file. To make it write to a
-different file, use the -c option.
+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 the mrconfig file. The next
+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.
@@ -108,6 +108,9 @@ To show the command that mr uses to update the repository in src/foo:
 
   mr config src/foo update
 
+The ~/.mrconfig file is used by default. To use a different config file,
+use the -c option.
+
 =item help
 
 Displays this help.
@@ -134,8 +137,7 @@ the current working directory.
 
 =item -c mrconfig
 
-Use the specified mrconfig file, instead of looking for one in your home
-directory.
+Use the specified mrconfig file. The default is B<~/.mrconfig>
 
 =item -v
 
@@ -195,8 +197,11 @@ 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.
+
 The "MR_REPO" environment variable is set to the path to the top of the
-repository, and "MR_CONFIG" is set to the topmost .mrconfig file used.
+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.
 
 A few parameters have special meanings:
 
@@ -261,18 +266,20 @@ $SIG{INT}=sub {
 };
 
 $ENV{MR_CONFIG}="$ENV{HOME}/.mrconfig";
+my $config_overridden=0;
 my $directory=getcwd();
 my $verbose=0;
 my $stats=0;
 my $no_recurse=0;
 my %config;
+my %configfiles;
 my %knownactions;
 my %alias;
 
 Getopt::Long::Configure("no_permute");
 my $result=GetOptions(
        "d|directory=s" => sub { $directory=abs_path($_[1]) },
-       "c|config=s" => \$ENV{MR_CONFIG},
+       "c|config=s" => sub { $ENV{MR_CONFIG}=$_[1]; $config_overridden=1 },
        "v|verbose" => \$verbose,
        "s|stats" => \$stats,
        "n|no-recurse" => \$no_recurse,
@@ -321,6 +328,7 @@ if (! exists $knownactions{$action}) {
        }
 }
 
+# commands that do not operate on all repos
 if ($action eq 'help') {
        exec($config{''}{DEFAULT}{$action}) || die "exec: $!";
 }
@@ -361,6 +369,18 @@ elsif ($action eq 'config') {
        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);
@@ -408,9 +428,10 @@ foreach my $repo (@repos) {
 
 sub action { #{{{
        my ($action, $dir, $topdir, $subdir) = @_;
-       
-       my $lib= exists $config{$topdir}{$subdir}{lib} ?
-                       $config{$topdir}{$subdir}{lib}."\n" : "";
+
+       $ENV{MR_CONFIG}=$configfiles{$topdir};
+       my $lib=exists $config{$topdir}{$subdir}{lib} ?
+                      $config{$topdir}{$subdir}{lib}."\n" : "";
 
        if (exists $config{$topdir}{$subdir}{deleted}) {
                my $test="set -e;".$lib.$config{$topdir}{$subdir}{deleted};
@@ -595,6 +616,10 @@ sub loadconfig { #{{{
                        $dir=".";
                }
                $dir=abs_path($dir)."/";
+               
+               if (! exists $configfiles{$dir}) {
+                       $configfiles{$dir}=$f;
+               }
 
                # copy in defaults from first parent
                my $parent=$dir;
@@ -880,21 +905,21 @@ register =
                if [ -z "$url" ]; then
                        error "cannot determine svn url"
                fi
-               echo "Registering svn url: $url"
+               echo "Registering svn url: $url in $MR_CONFIG"
                mr -c "$MR_CONFIG" config "$(pwd)" checkout="svn co $url $basedir"
        elif [ -d .git ]; then
                url=$(LANG=C git-config --get remote.origin.url)
                if [ -z "$url" ]; then
                        error "cannot determine git url"
                fi
-               echo "Registering git url: $url"
+               echo "Registering git url: $url in $MR_CONFIG"
                mr -c "$MR_CONFIG" config "$(pwd)" checkout="git clone $url $basedir"
        elif [ -d .bzr ]; then
                url=$(cat .bzr/branch/parent)
                if [ -z "$url" ]; then
                        error "cannot determine bzr url"
                fi
-               echo "Registering bzr url: $url"
+               echo "Registering bzr url: $url in $MR_CONFIG"
                mr -c "$MR_CONFIG" config "$(pwd)" checkout="bzr clone $url $basedir"
        elif [ -d CVS ]; then
                repo=$(cat CVS/Repository)