Dgit.pm: "confess" when we die due to a warning, rather than symply dieing.

[dgit.git] / Debian / Dgit.pm

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index abcf123652e6db4917b9305cbdb5245d8802499e..d086cbe50d36d33e14cea82de5f00b8b367d569a 100644 (file)
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -49,7 +49,7 @@ BEGIN {
                      failedcmd_report_cmd failedcmd
                       runcmd cmdoutput cmdoutput_errok
                       git_rev_parse git_cat_file
-                     git_get_ref git_for_each_ref
+                     git_get_ref git_get_symref git_for_each_ref
                       git_for_each_tag_referring is_fast_fwd
                       $package_re $component_re $deliberately_re
                      $distro_re $versiontag_re $series_filename_re
@@ -108,7 +108,7 @@ sub forkcheck_mainprocess () {
 sub setup_sigwarn () {
     forkcheck_setup();
     $SIG{__WARN__} = sub { 
-       die $_[0] if forkcheck_mainprocess;
+       confess $_[0] if forkcheck_mainprocess;
     };
 }
 
@@ -381,6 +381,19 @@ sub git_cat_file ($;$) {
     return $chk->($type, $data);
 }
 
+sub git_get_symref (;$) {
+    my ($symref) = @_;  $symref //= 'HEAD';
+    # => undef if not a symref, otherwise refs/...
+    my @cmd = (qw(git symbolic-ref -q HEAD));
+    my $branch = cmdoutput_errok @cmd;
+    if (!defined $branch) {
+       $?==256 or failedcmd @cmd;
+    } else {
+       chomp $branch;
+    }
+    return $branch;
+}
+
 sub git_for_each_ref ($$;$) {
     my ($pattern,$func,$gitdir) = @_;
     # calls $func->($objid,$objtype,$fullrefname,$reftail);