compile/update hook: COMPILED FILE CHANGE -- PLEASE READ BELOW

Summary:
    DONT forget to run src/gl-compile-conf as the last step in the upgrade

Details:

The compiled file format has changed quite a bit, to make it easier for the
rebel edition coming up :-)

compile:
  - we don't split RW/RW+ into individual perms anymore
  - we store the info required for the first level check separately now:
    (repo, R/W, user)
  - the order for second level check is now:
    repo, user, [{ref=>perms}...] (list of hashes)

update hook logic: the first refex that:
  - matches the incoming ref, AND
  - contains the perm you're trying to use,
causes the match loop to exit with success.  Fallthrough is failure

doc/0-UPGRADE.mkd

@@ -42,6 +42,12 @@ And you're done.
 If any extra steps beyond the generic ones above are needed, they will be
 listed here, newest first.
 
+#### upgrading from 86faae4
+
+Between 86faae4 and this version, gitolite had a *major* change in the
+*internal* format of the compiled config file.  Please do not omit step 5 in
+the generic instructions above.
+
 #### upgrading from 5758f69
 
 Between 5758f69 and this version, gitolite learnt to allow "groupnames" for

src/gl-compile-conf

@@ -3,6 +3,7 @@
 use strict;
 use warnings;
 use Data::Dumper;
+$Data::Dumper::Indent = 1;
 
 # === add-auth-keys ===
 
@@ -146,8 +147,7 @@ while (<$conf_fh>)
     # actual permission line
     elsif (/^(R|RW|RW\+) (.* )?= (.+)/)
     {
-        # split perms to separate out R, W, and +
-        my @perms = split //, $1;
+        my $perms = $1;
         my @refs; @refs = split(' ', $2) if $2;
         my @users = split ' ', $3;
 
@@ -165,11 +165,16 @@ while (<$conf_fh>)
         # ok, we can finally populate the %repos hash
         for my $repo (@repos)       # each repo in the current stanza
         {
-            for my $perm (@perms)
+            for my $user (@users)
             {
-                for my $user (@users)
+                # for 1st level check (see faq/tips doc)
+                $repos{$repo}{R}{$user} = 1 if $perms =~ /R/;
+                $repos{$repo}{W}{$user} = 1 if $perms =~ /W/;
+
+                # for 2nd level check, store each "ref, perms" pair in order
+                for my $ref (@refs)
                 {
-                    push @{ $repos{$repo}{$perm}{$user} }, @refs;
+                    push @{ $repos{$repo}{$user} }, { $ref => $perms };
                 }
             }
         }

src/update-hook.pl

@@ -58,13 +58,17 @@ $perm = '+' if $ref =~ m(refs/tags/) and $oldsha ne ('0' x 40);
 $perm = '+' if $oldsha ne $merge_base;
 
 my @allowed_refs;
-push @allowed_refs, @ { $repos{$ENV{GL_REPO}}{$perm}{$ENV{GL_USER}} || [] };
-push @allowed_refs, @ { $repos{$ENV{GL_REPO}}{$perm}{'@all'} || [] };
-push @allowed_refs, "$PERSONAL/$ENV{GL_USER}/" if $PERSONAL;
-for my $refex (@allowed_refs)
-# refex?  sure -- a regex to match a ref against :)
+# personal stuff -- right at the start in the new regime, I guess!
+push @allowed_refs, { "$PERSONAL/$ENV{GL_USER}/" => "RW+" } if $PERSONAL;
+# we want specific perms to override @all, so they come first
+push @allowed_refs, @ { $repos{$ENV{GL_REPO}}{$ENV{GL_USER}} || [] };
+push @allowed_refs, @ { $repos{$ENV{GL_REPO}}{'@all'} || [] };
+for my $ar (@allowed_refs)
 {
-    if ($ref =~ /$refex/)
+    my $refex = (keys %$ar)[0];
+    # refex?  sure -- a regex to match a ref against :)
+    next unless $ref =~ /$refex/;
+    if ($ar->{$refex} =~ /\Q$perm/)
     {
         # if log failure isn't important enough to block pushes, get rid of
         # all the error checking
@@ -72,9 +76,9 @@ for my $refex (@allowed_refs)
             or die "open log failed: $!\n";
         print $log_fh "$ENV{GL_TS}  $perm\t" .
             substr($oldsha, 0, 14) . "\t" . substr($newsha, 0, 14) .
-            "\t$ENV{GL_REPO}\t$ref\t$ENV{GL_USER}\n";
+            "\t$ENV{GL_REPO}\t$ref\t$ENV{GL_USER}\t$refex\n";
         close $log_fh or die "close log failed: $!\n";
         exit 0;
     }
 }
-exit 1;
+die "$perm $ref $ENV{GL_USER} DENIED by fallthru\n";