* Add a lib file for using unison with mr.

[code/myrepos.git] / mr

diff --git a/mr b/mr
index 8108762c2ee95e896c3343ac7a1cbf41c6b0ad38..bc73d4023353ec8c69accc848a1cdbe88e9b7394 100755 (executable)
--- a/mr
+++ b/mr
@@ -296,7 +296,8 @@ use warnings;
 use strict;
 use Getopt::Long;
 use Cwd qw(getcwd abs_path);
-use POSIX "WNOHANG";
+
+# things that can happen when mr runs a command
 use constant {
        OK => 0,
        FAILED => 1,
@@ -304,80 +305,47 @@ use constant {
        ABORT => 3,
 };
 
-$SIG{INT}=sub {
-       print STDERR "mr: interrupted\n";
-       exit 2;
-};
-
-$ENV{MR_CONFIG}="$ENV{HOME}/.mrconfig";
+# configurables
 my $config_overridden=0;
 my $verbose=0;
 my $stats=0;
 my $no_recurse=0;
 my $no_chdir=0;
 my $jobs=1;
+my $directory=getcwd();
+
+# globals :-(
 my %config;
 my %configfiles;
 my %knownactions;
 my %alias;
-my $directory=getcwd();
-
-getopts();
-
-# This can happen if it's run in a directory that was removed
-# or other strangeness.
-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."/".$Script;
-};
-
-loadconfig(\*DATA);
-loadconfig($ENV{MR_CONFIG});
-#use Data::Dumper;
-#print Dumper(\%config);
+my (@ok, @failed, @skipped);
 
-my $action=expandaction(shift @ARGV);
+main();
 
-# actions that do not operate on all repos
-if ($action eq 'help') {
-       help(@ARGV);
-}
-elsif ($action eq 'config') {
-       config(@ARGV);
-}
-elsif ($action eq 'register') {
-       register(@ARGV);
-}
+sub dispatch { #{{{
+       my $action=shift;
 
-my (@ok, @failed, @skipped);
-if ($jobs > 1) {
-       mrs(selectrepos());
-}
-else {
-       foreach my $repo (selectrepos()) {
-               record($repo, action($action, @$repo));
+       # actions that do not operate on all repos
+       if ($action eq 'help') {
+               help(@ARGV);
+       }
+       elsif ($action eq 'config') {
+               config(@ARGV);
+       }
+       elsif ($action eq 'register') {
+               register(@ARGV);
        }
-}
-
-showstats();
 
-if (@failed) {
-       exit 1;
-}
-elsif (! @ok && @skipped) {
-       exit 1;
-}
-exit 0;
+       if ($jobs > 1) {
+               mrs($action, selectrepos());
+       }
+       else {
+               foreach my $repo (selectrepos()) {
+                       record($repo, action($action, @$repo));
+               }
+       }
+} #}}}
 
 sub rcs_test { #{{{
        my ($action, $dir, $topdir, $subdir) = @_;
@@ -537,6 +505,7 @@ sub action { #{{{
 
 # run actions on multiple repos, in parallel
 sub mrs { #{{{
+       my $action=shift;
        my @repos=@_;
 
        $| = 1;
@@ -628,6 +597,7 @@ sub record { #{{{
 } #}}}
 
 sub showstats { #{{{
+       my $action=shift;
        if (! @ok && ! @failed && ! @skipped) {
                die "mr $action: no repositories found to work on\n";
        }
@@ -823,11 +793,11 @@ sub loadconfig { #{{{
                                        my $ret=system($value);
                                        if ($ret != 0) {
                                                if (($? & 127) == 2) {
-                                                       print STDERR "mr $action: chain test interrupted\n";
+                                                       print STDERR "mr: chain test interrupted\n";
                                                        exit 2;
                                                }
                                                elsif ($? & 127) {
-                                                       print STDERR "mr $action: chain test received signal ".($? & 127)."\n";
+                                                       print STDERR "mr: chain test received signal ".($? & 127)."\n";
                                                }
                                        }
                                        else {
@@ -944,7 +914,7 @@ sub modifyconfig { #{{{
 } #}}}
        
 sub help { #{{{
-       exec($config{''}{DEFAULT}{$action}) || die "exec: $!";
+       exec($config{''}{DEFAULT}{help}) || die "exec: $!";
 } #}}}
        
 sub config { #{{{
@@ -977,7 +947,7 @@ sub config { #{{{
                                }
                        }
                        if (! $found) {
-                               die "mr $action: $section $_ not set\n";
+                               die "mr config: $section $_ not set\n";
                        }
                }
        }
@@ -1002,21 +972,21 @@ sub register { #{{{
        if (@ARGV) {
                my $subdir=shift @ARGV;
                if (! chdir($subdir)) {
-                       print STDERR "mr $action: failed to chdir to $subdir: $!\n";
+                       print STDERR "mr register: failed to chdir to $subdir: $!\n";
                }
        }
 
        $ENV{MR_REPO}=getcwd();
        my $command=findcommand("register", $ENV{MR_REPO}, $directory, 'DEFAULT');
        if (! defined $command) {
-               die "mr $action: unknown repository type\n";
+               die "mr register: unknown repository type\n";
        }
 
        $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);
-       print "mr $action: running >>$command<<\n" if $verbose;
+       print "mr register: running >>$command<<\n" if $verbose;
        exec($command) || die "exec: $!";
 } #}}}
 
@@ -1060,6 +1030,54 @@ sub getopts { #{{{
        }
 } #}}}
 
+sub init { #{{{
+       $SIG{INT}=sub {
+               print STDERR "mr: interrupted\n";
+               exit 2;
+       };
+       
+       $ENV{MR_CONFIG}="$ENV{HOME}/.mrconfig";
+
+       # This can happen if it's run in a directory that was removed
+       # or other strangeness.
+       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."/".$Script;
+       };
+} #}}}
+
+sub main { #{{{
+       getopts();
+       init();
+       loadconfig(\*DATA);
+       loadconfig($ENV{MR_CONFIG});
+       #use Data::Dumper; print Dumper(\%config);
+
+       my $action=expandaction(shift @ARGV);
+       dispatch($action);
+       showstats($action);
+
+       if (@failed) {
+               exit 1;
+       }
+       elsif (! @ok && @skipped) {
+               exit 1;
+       }
+       else {
+               exit 0;
+       }
+} #}}}
+
 # Finally, some useful actions that mr knows about by default.
 # These can be overridden in ~/.mrconfig.
 #DATA{{{