git-debrebase: merge: Improve some xxx comments

[dgit.git] / infra / dgit-ssh-dispatch

diff --git a/infra/dgit-ssh-dispatch b/infra/dgit-ssh-dispatch
index 6d4efbff655d61d0b746f96d00cb540266677ff0..c5861d2d8b4223ca764e24f78df6223714ef7b47 100755 (executable)
--- a/infra/dgit-ssh-dispatch
+++ b/infra/dgit-ssh-dispatch
@@ -1,9 +1,28 @@
 #!/usr/bin/perl -w
+# wrapper to dispatch git ssh service requests
+#
+# Copyright (C) 2015-2016  Ian Jackson
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 use strict;
-use POSIX;
 
+use Debian::Dgit::Infra; # must precede Debian::Dgit; - can change @INC!
 use Debian::Dgit;
+setup_sigwarn();
+
+use POSIX;
 
 open DEBUG, '>/dev/null' or die $!;
 if (@ARGV && $ARGV[0] eq '-D') {
@@ -32,6 +51,7 @@ our $qre = '["'."']?";
 # diverts should be list of
 #  <pat> [<divert-to>]
 # where <pat> is a package name pattern which may contain * or literals.
+# <divert-to> is for `git config dgit-distro.DISTRO.diverts.<divert-to>'
 
 our ($distro,$pkg, $d);
 our ($dgitlive,$repos,$suites,$diverts,$policyhook,$repo);
@@ -118,7 +138,7 @@ sub serve_up ($) {
 }
 
 sub dispatch () {
-    local ($_) = $ENV{'SSH_ORIGINAL_COMMAND'};
+    local ($_) = $ENV{'SSH_ORIGINAL_COMMAND'} // '';
 
     if (m#^: dgit ($lre) git-check ($lre) ;#) {
        selectpackage $1,$2, sub { prl "divert @_"; finish; };