dgit: Import handling Do not crash due in clone

Previously we failed to handle dpkg-parsechangelog SIGPIPE.
Closes:#840989.

Fixes:
  dgit: failed command: dpkg-parsechangelog --format rfc822 --all
  dgit: subprocess died due to fatal signal PIPE

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

2 files changed, 5 insertions, 1 deletions

diff --git a/debian/changelog b/debian/changelog
index e35438e..505f392 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,5 +1,9 @@
 dgit (2.1~~) unstable; urgency=medium
 
+  * Do not crash due in clone to failure to handle dpkg-parsechangelog
+    SIGPIPE.  Closes:#840989.  Avoids:
+       dgit: failed command: dpkg-parsechangelog --format rfc822 --all
+       dgit: subprocess died due to fatal signal PIPE
   * git- prefixes: Fix some occurrences of `git-foo' in infrastructure,
     messages, and test suite.  Filter out .../git-core from PATH in
     test suite so that we catch future occurrences.
diff --git a/dgit b/dgit
index 0507899..a568c57 100755
--- a/dgit
+++ b/dgit
@@ -1846,7 +1846,7 @@ sub generate_commits_from_dsc () {
 	printdebug "import clog $r1clogp->{version} becomes r1\n";
     }
     die $! if CLOGS->error;
-    close CLOGS or $?==(SIGPIPE<<8) or failedcmd @clogcmd;
+    close CLOGS or $?==SIGPIPE or failedcmd @clogcmd;
 
     $clogp or fail "package changelog has no entries!";