From c4c02bf16c47f8751958458e540269ec13f4bd98 Mon Sep 17 00:00:00 2001 From: Johannes Sixt Date: Fri, 22 Jul 2016 21:14:38 +0200 Subject: git-submodule: forward exit code of git-submodule--helper more faithfully git-submodule--helper is invoked as the upstream of a pipe in several places. Usually, the failure of a program in this position is not detected by the shell. For this reason, the code inserts a token in the output stream when git-submodule--helper fails that is detected downstream, where the shell script is quit with exit code 1. There happens to be a bug in git-submodule--helper that leads to a segmentation fault. The test suite triggers the crash in several places, all of which are protected by 'test_must_fail'. But due to the inspecific exit code 1, the crash remains undiagnosed. Extend the failure protocol such that git-submodule--helper's exit code is passed downstream (only in the case of failure). This enables the downstream to use it as its own exit code, and 'test_must_fail' to identify the segmentation fault as an unexpected failure. The bug itself is fixed in the next commit. Signed-off-by: Johannes Sixt Acked-by: Stefan Beller Signed-off-by: Junio C Hamano --- git-submodule.sh | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'git-submodule.sh') diff --git a/git-submodule.sh b/git-submodule.sh index 7c62b53cc0..d8765361c5 100755 --- a/git-submodule.sh +++ b/git-submodule.sh @@ -50,7 +50,7 @@ die_if_unmatched () { if test "$1" = "#unmatched" then - exit 1 + exit ${2:-1} fi } @@ -312,11 +312,11 @@ cmd_foreach() { git submodule--helper list --prefix "$wt_prefix" || - echo "#unmatched" + echo "#unmatched" $? } | while read mode sha1 stage sm_path do - die_if_unmatched "$mode" + die_if_unmatched "$mode" "$sha1" if test -e "$sm_path"/.git then displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix") @@ -423,11 +423,11 @@ cmd_deinit() { git submodule--helper list --prefix "$wt_prefix" "$@" || - echo "#unmatched" + echo "#unmatched" $? } | while read mode sha1 stage sm_path do - die_if_unmatched "$mode" + die_if_unmatched "$mode" "$sha1" name=$(git submodule--helper name "$sm_path") || exit displaypath=$(git submodule--helper relative-path "$sm_path" "$wt_prefix") @@ -580,12 +580,12 @@ cmd_update() ${depth:+--depth "$depth"} \ ${recommend_shallow:+"$recommend_shallow"} \ ${jobs:+$jobs} \ - "$@" || echo "#unmatched" + "$@" || echo "#unmatched" $? } | { err= while read mode sha1 stage just_cloned sm_path do - die_if_unmatched "$mode" + die_if_unmatched "$mode" "$sha1" name=$(git submodule--helper name "$sm_path") || exit url=$(git config submodule."$name".url) @@ -993,11 +993,11 @@ cmd_status() { git submodule--helper list --prefix "$wt_prefix" "$@" || - echo "#unmatched" + echo "#unmatched" $? } | while read mode sha1 stage sm_path do - die_if_unmatched "$mode" + die_if_unmatched "$mode" "$sha1" name=$(git submodule--helper name "$sm_path") || exit url=$(git config submodule."$name".url) displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix") @@ -1074,11 +1074,11 @@ cmd_sync() cd_to_toplevel { git submodule--helper list --prefix "$wt_prefix" "$@" || - echo "#unmatched" + echo "#unmatched" $? } | while read mode sha1 stage sm_path do - die_if_unmatched "$mode" + die_if_unmatched "$mode" "$sha1" name=$(git submodule--helper name "$sm_path") url=$(git config -f .gitmodules --get submodule."$name".url) -- cgit v1.2.3