X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=dgit;h=87419c266574709d8fc02b420ded39ae2aba6f3e;hb=4ab980fde0d1f51ebf67f0353605e30e923b0975;hp=88df4ef5eedeaf0bca604e477067dc2b53d18b49;hpb=893e94307ff001da9fc13b28c94ed27d17f48b60;p=dgit.git

diff --git a/dgit b/dgit
index 88df4ef5..87419c26 100755
--- a/dgit
+++ b/dgit
@@ -5281,9 +5281,19 @@ sub cmd_import_dsc {
 
     badusage "dry run makes no sense with import-dsc" unless act_local();
 
+    my $info = "$dscfn";
+
+    my $specbranch = $dstbranch;
     $dstbranch = "refs/heads/$dstbranch" unless $dstbranch =~ m#^refs/#;
     $dstbranch = cmdoutput @git, qw(check-ref-format --normalize), $dstbranch;
 
+    my @symcmd = (@git, qw(symbolic-ref -q HEAD));
+    my $chead = cmdoutput_errok @symcmd;
+    defined $chead or $?==256 or failedcmd @symcmd;
+
+    fail "$dstbranch is checked out - will not update it"
+	if defined $chead and $chead eq $dstbranch;
+
     open D, "<", $dscfn or fail "open import .dsc ($dscfn): $!";
     $dscdata = do { local $/ = undef; <D>; };
     D->error and fail "read $dscfn: $!";
@@ -5305,7 +5315,7 @@ Your git tree does not have that object.  Try `git fetch' from a
 plausible server (browse.dgit.d.o? alioth?), and try the import-dsc again.
 END
 	}
-	@cmd = (@git, qw(update-ref -m), "dgit import-dsc (Dgit): $dscfn",
+	@cmd = (@git, qw(update-ref -m), "dgit import-dsc (Dgit): $info",
 		$dstbranch, $dgit_commit);
 	runcmd @cmd;
 	progress "dgit: import-dsc updated git ref $dstbranch";
@@ -5337,7 +5347,7 @@ END
     my @mergeinputs = generate_commits_from_dsc();
     die unless @mergeinputs == 1;
 
-    my @cmd = (@git, qw(update-ref -m), "dgit import-dsc: $dscfn",
+    my @cmd = (@git, qw(update-ref -m), "dgit import-dsc: $info",
 	       $dstbranch, $mergeinputs[0]{Commit});
     runcmd @cmd;
     progress "dgit: import-dsc results are in in git ref $dstbranch";