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[PATCH v4] transport-helper: report errors properly

From
Felipe Contreras <felipe.contreras@gmail.com>
Date
Apr 8, 2013, 14:40 UTC
Message-ID
<1365432004-20132-1-git-send-email-felipe.contreras@gmail.com>

If a push fails because the remote-helper died (with fast-export), the user won't see any error message. So let's add one.

At the same time lets add tests to ensure this error is reported, and while we are at it, check the error from fast-import

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 git-remote-testgit        | 13 +++++++++++++
 t/t5801-remote-helpers.sh | 21 +++++++++++++++++++++
 transport-helper.c        |  2 +-
 3 files changed, 35 insertions(+), 1 deletion(-)
diff --git a/git-remote-testgit b/git-remote-testgit
index b395c8d..2eb7889 100755
--- a/git-remote-testgit
+++ b/git-remote-testgit
@@ -61,12 +61,25 @@ do
 			echo "feature import-marks=$gitmarks"
 			echo "feature export-marks=$gitmarks"
 		fi
+
+		if test -n "$GIT_REMOTE_TESTGIT_FAILURE"
+		then
+			echo "feature done"
+			exit 1
+		fi
+
 		echo "feature done"
 		git fast-export "${testgitmarks_args[@]}" $refs |
 		sed -e "s#refs/heads/#${prefix}/heads/#g"
 		echo "done"
 		;;
 	export)
+		if test -n "$GIT_REMOTE_TESTGIT_FAILURE"
+		then
+			sleep 1 # don't let fast-export get SIGPIPE
+			exit 1
+		fi
+
 		before=$(git for-each-ref --format='%(refname) %(objectname)')
 
 		git fast-import "${testgitmarks_args[@]}" --quiet
diff --git a/t/t5801-remote-helpers.sh b/t/t5801-remote-helpers.sh
index f387027..2dfcf64 100755
--- a/t/t5801-remote-helpers.sh
+++ b/t/t5801-remote-helpers.sh
@@ -166,4 +166,25 @@ test_expect_success 'push ref with existing object' '
 	compare_refs local dup server dup
 '
 
+test_expect_success 'proper failure checks for fetching' '
+	(GIT_REMOTE_TESTGIT_FAILURE=1 &&
+	export GIT_REMOTE_TESTGIT_FAILURE &&
+	cd local &&
+	test_must_fail git fetch 2> error &&
+	cat error &&
+	grep -q "Error while running fast-import" error
+	)
+'
+
+# We sleep to give fast-export a chance to catch the SIGPIPE
+test_expect_success 'proper failure checks for pushing' '
+	(GIT_REMOTE_TESTGIT_FAILURE=1 &&
+	export GIT_REMOTE_TESTGIT_FAILURE &&
+	cd local &&
+	test_must_fail git push --all 2> error &&
+	cat error &&
+	grep -q "Reading from remote helper failed" error
+	)
+'
+
 test_done
diff --git a/transport-helper.c b/transport-helper.c
index cb3ef7d..96081cc 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -54,7 +54,7 @@ static int recvline_fh(FILE *helper, struct strbuf *buffer)
 	if (strbuf_getline(buffer, helper, '\n') == EOF) {
 		if (debug)
 			fprintf(stderr, "Debug: Remote helper quit.\n");
-		exit(128);
+		die("Reading from remote helper failed");
 	}
 
 	if (debug)
-- 
1.8.2
Next: Sverre Rabbelier
Message 1 of 31 in “transport-helper: report errors properly”
  1. transport-helper: report errors properlyFelipe Contreras, Apr 8, 2013
  2. Sverre RabbelierApr 8, 2013
  3. Jeff KingApr 8, 2013
  4. Jeff KingApr 8, 2013
  5. Thomas RastApr 9, 2013
  6. Jeff KingApr 9, 2013
  7. 0/2 reporting transport helper errorsJeff King, Apr 10, 2013
  8. 1/2 transport-helper: report errors properlyJeff King, Apr 10, 2013
  9. Sverre RabbelierApr 10, 2013
  10. Eric SunshineApr 10, 2013
  11. Felipe ContrerasApr 11, 2013
  12. Jeff KingApr 11, 2013
  13. Felipe ContrerasApr 11, 2013
  14. Jeff KingApr 11, 2013
  15. Felipe ContrerasApr 11, 2013
  16. Junio C HamanoApr 11, 2013
  17. Felipe ContrerasApr 11, 2013
  18. Junio C HamanoApr 11, 2013
  19. Felipe ContrerasApr 11, 2013
  20. Junio C HamanoApr 11, 2013
  21. Felipe ContrerasApr 13, 2013
  22. Jeff KingApr 13, 2013
  23. Felipe ContrerasApr 13, 2013
  24. Junio C HamanoApr 14, 2013
  25. Felipe ContrerasApr 14, 2013
  26. 2/2 transport-helper: mention helper name when it diesJeff King, Apr 10, 2013
  27. Sverre RabbelierApr 10, 2013
  28. Jeff KingApr 10, 2013
  29. Sverre RabbelierApr 10, 2013
  30. rhApr 10, 2013
  31. Jeff KingApr 11, 2013

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