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Add a comment explaining what selectrepos() returns.
[code/myrepos.git] / mr
diff --git a/mr b/mr
index f1ca9f65bb52c77adb7874eba052bfec36d1af14..3a168d10e40877cc20b21ac6112005f789710959 100755 (executable)
--- a/mr
+++ b/mr
@@ -41,7 +41,7 @@ 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,
 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, darcs and fossil repositories, and support for other revision
+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
 control systems can easily be added.
 
 B<mr> cds into and operates on all registered repositories at or below your
@@ -55,7 +55,7 @@ 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.
 
 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
 control system:
 
 =over 4
@@ -87,14 +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
 =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
 
 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
 
 
 =item diff
 
@@ -189,8 +189,8 @@ Actions can be abbreviated to any unambiguous substring, so
 update"
 
 Additional parameters can be passed to most commands, and are passed on
 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
 system.
 
 =head1 OPTIONS
@@ -397,6 +397,14 @@ part of the including file.
 Unlike all other parameters, this parameter does not need to be placed
 within a section.
 
 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
 =item deleted
 
 If the "deleted" parameter is set and its command returns true, then
@@ -429,15 +437,15 @@ run before committing; "post_update" is run after updating.
 
 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
 
 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
 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.
 
 =head1 UNTRUSTED MRCONFIG FILES
 
 
 =head1 UNTRUSTED MRCONFIG FILES
 
@@ -519,41 +527,41 @@ my (@ok, @failed, @skipped);
 
 main();
 
 
 main();
 
-my %rcs;
-sub rcs_test {
+my %vcs;
+sub vcs_test {
        my ($action, $dir, $topdir, $subdir) = @_;
 
        my ($action, $dir, $topdir, $subdir) = @_;
 
-       if (exists $rcs{$dir}) {
-               return $rcs{$dir};
+       if (exists $vcs{$dir}) {
+               return $vcs{$dir};
        }
 
        my $test="set -e\n";
        }
 
        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}}) {
                        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};
        
        }
        $test=$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 ".fulldir($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;
        }
                return undef;
        }
-       if (! length $rcs) {
-               return $rcs{$dir}=undef;
+       if (! length $vcs) {
+               return $vcs{$dir}=undef;
        }
        else {
        }
        else {
-               return $rcs{$dir}=$rcs;
+               return $vcs{$dir}=$vcs;
        }
 }
        
        }
 }
        
@@ -568,11 +576,11 @@ sub findcommand {
                return undef;
        }
 
                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;
        }
        else {
                return undef;
@@ -656,13 +664,13 @@ sub action {
                return FAILED;
        }
        elsif (! defined $command) {
                return FAILED;
        }
        elsif (! defined $command) {
-               my $rcs=rcs_test(@_);
-               if (! defined $rcs) {
+               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: unknown repository type and no defined $action command for $fulldir\n";
                        return FAILED;
                }
                else {
-                       print STDERR "mr $action: no defined action for $rcs repository $fulldir, skipping\n";
+                       print STDERR "mr $action: no defined action for $vcs repository $fulldir, skipping\n";
                        return SKIPPED;
                }
        }
                        return SKIPPED;
                }
        }
@@ -938,7 +946,10 @@ sub repodir {
        return $ret;
 }
 
        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()) {
 sub selectrepos {
        my @repos;
        foreach my $repo (repolist()) {
@@ -1171,11 +1182,43 @@ sub loadconfig {
        close $in unless ref $f eq 'GLOB';
 
        my $section;
        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 $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) {
        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=$1;
                next if /^\s*\#/ || /^\s*$/;
                if (/^\[([^\]]*)\]\s*$/) {
                        $section=$1;
@@ -1201,10 +1244,9 @@ sub loadconfig {
 
                        # continued value
                        while (@lines && $lines[0]=~/^\s(.+)/) {
 
                        # continued value
                        while (@lines && $lines[0]=~/^\s(.+)/) {
-                               shift(@lines);
-                               $line++;
                                $value.="\n$1";
                                chomp $value;
                                $value.="\n$1";
                                chomp $value;
+                               $nextline->();
                        }
 
                        if (! $trusted) {
                        }
 
                        if (! $trusted) {
@@ -1230,15 +1272,17 @@ sub loadconfig {
 
                        if ($parameter eq "include") {
                                print "mr: including output of \"$value\"\n" if $verbose;
 
                        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 ($?)\n";
                                }
                                if ($?) {
                                        print STDERR "mr: include command exited nonzero ($?)\n";
                                }
+                               $included += @inc;
+                               unshift @lines, @inc;
                                next;
                        }
 
                        if (! defined $section) {
                                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}=$value;
                        }
                        if ($section eq 'ALIAS') {
                                $alias{$parameter}=$value;
@@ -1257,7 +1301,7 @@ sub loadconfig {
                                if ($parameter eq 'chain' &&
                                    length $dir && $section ne "DEFAULT") {
                                        my $chaindir="$section";
                                if ($parameter eq 'chain' &&
                                    length $dir && $section ne "DEFAULT") {
                                        my $chaindir="$section";
-                                       if ($chaindir !~ m!/!) {
+                                       if ($chaindir !~ m!^/!) {
                                                $chaindir=$dir.$chaindir;
                                        }
                                        if (-e "$chaindir/.mrconfig") {
                                                $chaindir=$dir.$chaindir;
                                        }
                                        if (-e "$chaindir/.mrconfig") {
@@ -1279,7 +1323,7 @@ sub loadconfig {
                        }
                }
                else {
                        }
                }
                else {
-                       die "$f line $line: parse error\n";
+                       $lineerror->("parse error");
                }
        }
 
                }
        }
 
hacking on myrepos

Legalese

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All files and their content are released under the terms of the Artistic Licence 2.0, unless otherwise noted.

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