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  insteadOf = madduck:

incompatible mrconfig file format change
[code/myrepos.git] / mr
diff --git a/mr b/mr
index 06829d2c9abaaddcdab5861cfadb6888c76ee8f5..83b595221886af7b802cecc888aedc2aab1f11ce 100755 (executable)
--- a/mr
+++ b/mr
@@ -86,16 +86,19 @@ directory to register.
 
 =item config
 
-Adds, modifies, removed, or prints a value from the mrconfig file. The next
-parameter is the name of the section the value is in. To add or modify a
-value, follow it by one or more instances of "parameter=value". Use
-"parameter=" to remove a parameter. Use just "parameter" to get the value
-of a parameter.
+Adds, modifies, removes, or prints a value from the 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
+
 =item help
 
 Displays this help.
@@ -144,10 +147,13 @@ Here is an example .mrconfig file:
   chain = true
 
   [src/linux-2.6]
-  checkout = git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
+  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.
+"#" 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.
@@ -299,12 +305,17 @@ elsif ($action eq 'config') {
                        $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;
                                }
                        }
+                       if (! $found) {
+                               die "mr $action: $section $_ not set\n";
+                       }
                }
        }
        modifyconfig($config, $section, %changefields) if %changefields;
@@ -477,8 +488,8 @@ sub loadconfig {
        my $in;
        my $dir;
        if (ref $f eq 'GLOB') {
-               $in=$f; 
                $dir="";
+               $in=$f; 
        }
        else {
                if (! -e $f) {
@@ -491,8 +502,6 @@ sub loadconfig {
                }
                $loaded{$absf}=1;
 
-               print "mr: loading config $f\n" if $verbose;
-               open($in, "<", $f) || die "mr: open $f: $!\n";
                ($dir)=$f=~/^(.*\/)[^\/]+$/;
                if (! defined $dir) {
                        $dir=".";
@@ -508,22 +517,29 @@ sub loadconfig {
                                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>) {
+       while (@lines) {
+               $_=shift @lines;
                chomp;
                next if /^\s*\#/ || /^\s*$/;
-               if (/^\s*\[([^\]]*)\]\s*$/) {
+               if (/^\[([^\]]*)\]\s*$/) {
                        $section=$1;
                }
-               elsif (/^\s*(\w+)\s*=\s*(.*)/) {
+               elsif (/^(\w+)\s*=\s*(.*)/) {
                        my $parameter=$1;
                        my $value=$2;
 
-                       # continuation line
-                       while ($value=~/(.*)\\$/s) {
-                               $value=$1."\n".<$in>;
+                       # continued value
+                       while (@lines && $lines[0]=~/^\s(.+)/) {
+                               shift(@lines);
+                               $value.="\n$1";
                                chomp $value;
                        }
 
@@ -557,7 +573,6 @@ sub loadconfig {
                        die "$f line $.: parse error\n";
                }
        }
-       close $in;
 
        foreach (@toload) {
                loadconfig($_);
@@ -581,6 +596,13 @@ sub modifyconfig {
                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[$#out] =~ /^\s*$/) {
@@ -589,6 +611,7 @@ sub modifyconfig {
                foreach my $field (sort keys %changefields) {
                        if (length $changefields{$field}) {
                                push @out, "$field = $changefields{$field}\n";
+                               delete $changefields{$field};
                        }
                }
                push @out, @blanks;
@@ -601,7 +624,7 @@ sub modifyconfig {
                if (/^\s*\#/ || /^\s*$/) {
                        push @out, $_;
                }
-               elsif (/^\s*\[([^\]]*)\]\s*$/) {
+               elsif (/^\[([^\]]*)\]\s*$/) {
                        if (defined $section && 
                            $section eq $targetsection) {
                                $addfields->();
@@ -611,13 +634,14 @@ sub modifyconfig {
 
                        push @out, $_;
                }
-               elsif (/^\s*(\w+)\s*=\s(.*)/) {
+               elsif (/^(\w+)\s*=\s(.*)/) {
                        my $parameter=$1;
                        my $value=$2;
 
-                       # continuation line
-                       while ($value=~/(.*\\)$/s) {
-                               $value=$1."\n".shift(@lines);
+                       # continued value
+                       while (@lines && $lines[0]=~/^\s(.+)/) {
+                               shift(@lines);
+                               $value.="\n$1";
                                chomp $value;
                        }
 
@@ -630,19 +654,19 @@ sub modifyconfig {
                                }
                        }
 
-                       push @out, "$parameter = $value\n";
+                       push @out, $formatfield->($parameter, $value);
                }
        }
 
        if (defined $section && 
            $section eq $targetsection) {
-                       $addfields->();
+               $addfields->();
        }
        elsif (%changefields) {
                push @out, "\n[$targetsection]\n";
                foreach my $field (sort keys %changefields) {
                        if (length $changefields{$field}) {
-                               push @out, "$field = $changefields{$field}\n";
+                               push @out, $formatfield->($field, $changefields{$field});
                        }
                }
        }
@@ -656,128 +680,126 @@ sub modifyconfig {
 # These can be overridden in ~/.mrconfig.
 __DATA__
 [ALIAS]
-       co = checkout
-       ci = commit
-       ls = list
+co = checkout
+ci = commit
+ls = list
 
 [DEFAULT]
-lib =                                                                  \
-       error() {                                                       \
-               echo "mr: $@" >&2                                       \
-               exit 1                                                  \
-       }                                                               \
-       hours_since() {                                                 \
-               for dir in .git .svn .bzr CVS; do                       \
-                       if [ -e "$MR_REPO/$dir" ]; then                 \
-                               flagfile="$MR_REPO/$dir/.mr_last$1"     \
-                               break                                   \
-                       fi                                              \
-               done                                                    \
-               if [ -z "$flagfile" ]; then                             \
-                       error "cannot determine flag filename"          \
-               fi                                                      \
-               perl -wle 'print -f shift() ? int((-M _) * 24) : 9999' "$flagfile" \
-               touch "$flagfile"                                       \
+lib =
+       error() {
+               echo "mr: $@" >&2
+               exit 1
+       }
+       hours_since() {
+               for dir in .git .svn .bzr CVS; do
+                       if [ -e "$MR_REPO/$dir" ]; then
+                               flagfile="$MR_REPO/$dir/.mr_last$1"
+                               break
+                       fi
+               done
+               if [ -z "$flagfile" ]; then
+                       error "cannot determine flag filename"
+               fi
+               perl -wle 'print -f shift() ? int((-M _) * 24) : 9999' "$flagfile"
+               touch "$flagfile"
        }
 
-update =                                                               \
-       if [ -d "$MR_REPO"/.svn ]; then                                 \
-               svn update "$@"                                         \
-       elif [ -d "$MR_REPO"/.git ]; then                               \
-               git pull origin master "$@"                             \
-       elif [ -d "$MR_REPO"/.bzr ]; then                               \
-               bzr merge "$@"                                          \
-       elif [ -d "$MR_REPO"/CVS ]; then                                \
-               cvs update "$@"                                         \
-       else                                                            \
-               error "unknown repo type"                               \
+update =
+       if [ -d "$MR_REPO"/.svn ]; then
+               svn update "$@"
+       elif [ -d "$MR_REPO"/.git ]; then
+               git pull origin master "$@"
+       elif [ -d "$MR_REPO"/.bzr ]; then
+               bzr merge "$@"
+       elif [ -d "$MR_REPO"/CVS ]; then
+               cvs update "$@"
+       else
+               error "unknown repo type"
+       fi
+status =
+       if [ -d "$MR_REPO"/.svn ]; then
+               svn status "$@"
+       elif [ -d "$MR_REPO"/.git ]; then
+               git status "$@" || true
+       elif [ -d "$MR_REPO"/.bzr ]; then
+               bzr status "$@"
+       elif [ -d "$MR_REPO"/CVS ]; then
+               cvs status "$@"
+       else
+               error "unknown repo type"
+       fi
+commit =
+       if [ -d "$MR_REPO"/.svn ]; then
+               svn commit "$@"
+       elif [ -d "$MR_REPO"/.git ]; then
+               git commit -a "$@" && git push --all
+       elif [ -d "$MR_REPO"/.bzr ]; then
+               bzr commit "$@" && bzr push
+       elif [ -d "$MR_REPO"/CVS ]; then
+               cvs commit "$@"
+       else
+               error "unknown repo type"
        fi
-status =                                                               \
-       if [ -d "$MR_REPO"/.svn ]; then                                 \
-               svn status "$@"                                         \
-       elif [ -d "$MR_REPO"/.git ]; then                               \
-               git status "$@" || true                                 \
-       elif [ -d "$MR_REPO"/.bzr ]; then                               \
-               bzr status "$@"                                         \
-       elif [ -d "$MR_REPO"/CVS ]; then                                \
-               cvs status "$@"                                         \
-       else                                                            \
-               error "unknown repo type"                               \
+diff =
+       if [ -d "$MR_REPO"/.svn ]; then
+               svn diff "$@"
+       elif [ -d "$MR_REPO"/.git ]; then
+               git diff "$@"
+       elif [ -d "$MR_REPO"/.bzr ]; then
+               bzr diff "$@"
+       elif [ -d "$MR_REPO"/CVS ]; then
+               cvs diff "$@"
+       else
+               error "unknown repo type"
        fi
-commit =                                                               \
-       if [ -d "$MR_REPO"/.svn ]; then                                 \
-               svn commit "$@"                                         \
-       elif [ -d "$MR_REPO"/.git ]; then                               \
-               git commit -a "$@" && git push --all                    \
-       elif [ -d "$MR_REPO"/.bzr ]; then                               \
-               bzr commit "$@" && bzr push                             \
-       elif [ -d "$MR_REPO"/CVS ]; then                                \
-               cvs commit "$@"                                         \
-       else                                                            \
-               error "unknown repo type"                               \
+log =
+       if [ -d "$MR_REPO"/.svn ]; then
+               svn log"$@"
+       elif [ -d "$MR_REPO"/.git ]; then
+               git log "$@"
+       elif [ -d "$MR_REPO"/.bzr ]; then
+               bzr log "$@"
+       elif [ -d "$MR_REPO"/CVS ]; then
+               cvs log "$@"
+       else
+               error "unknown repo type"
        fi
-diff =                                                                 \
-       if [ -d "$MR_REPO"/.svn ]; then                                 \
-               svn diff "$@"                                           \
-       elif [ -d "$MR_REPO"/.git ]; then                               \
-               git diff "$@"                                           \
-       elif [ -d "$MR_REPO"/.bzr ]; then                               \
-               bzr diff "$@"                                           \
-       elif [ -d "$MR_REPO"/CVS ]; then                                \
-               cvs diff "$@"                                           \
-       else                                                            \
-               error "unknown repo type"                               \
+register =
+       if [ -n "$1" ]; then
+               cd "$1"
        fi
-log =                                                                  \
-       if [ -d "$MR_REPO"/.svn ]; then                                 \
-               svn log"$@"                                             \
-       elif [ -d "$MR_REPO"/.git ]; then                               \
-               git log "$@"                                            \
-       elif [ -d "$MR_REPO"/.bzr ]; then                               \
-               bzr log "$@"                                            \
-       elif [ -d "$MR_REPO"/CVS ]; then                                \
-               cvs log "$@"                                            \
-       else                                                            \
-               error "unknown repo type"                               \
+       basedir="$(basename $(pwd))"
+       if [ -d .svn ]; then
+               url=$(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: $url"
+               mr config "$(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: $url"
+               mr config "$(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: $url"
+               mr config "$(pwd)" checkout="bzr clone $url $basedir"
+       else
+               error "unable to register this repo type"
        fi
-register =                                                             \
-       if [ -n "$1" ]; then                                            \
-               cd "$1"                                                 \
-       fi                                                              \
-       basedir="$(basename $(pwd))"                                    \
-       if [ -d .svn ]; then                                            \
-               url=$(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: $url"                        \
-               mr config "$(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: $url"                        \
-               mr config "$(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: $url"                        \
-               mr config "$(pwd)" checkout="bzr clone $url $basedir"   \
-       else                                                            \
-               error "unable to register this repo type"               \
+help =
+       if [ ! -e "$MR_PATH" ]; then
+               error "cannot find program path"
        fi
+       (pod2man -c mr "$MR_PATH" | man -l -) || error "pod2man or man failed"
 list = true
 config = 
-help =                                                                 \
-       if [ ! -e "$MR_PATH" ]; then                                    \
-               error "cannot find program path"                        \
-       fi                                                              \
-       (pod2man -c mr "$MR_PATH" | man -l -) ||                        \
-               error "pod2man or man failed"
 
 ed = echo "A horse is a horse, of course, of course.."
 T = echo "I pity the fool."