From dda634687717fd8aafd54cae9ae3d9b2902e276e Mon Sep 17 00:00:00 2001 From: "brian m. carlson" Date: Mon, 15 Oct 2018 00:02:01 +0000 Subject: [PATCH] submodule: make zero-oid comparison hash function agnostic With SHA-256, the length of the all-zeros object ID is longer. Add a function to git-submodule.sh to check if a full hex object ID is the all-zeros value, and use it to check the output we're parsing from git diff-files or diff-index. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano --- git-submodule.sh | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/git-submodule.sh b/git-submodule.sh index 1b568e29b9..c09eb3e03d 100755 --- a/git-submodule.sh +++ b/git-submodule.sh @@ -82,6 +82,11 @@ isnumber() n=$(($1 + 0)) 2>/dev/null && test "$n" = "$1" } +# Given a full hex object ID, is this the zero OID? +is_zero_oid () { + echo "$1" | sane_egrep '^0+$' >/dev/null 2>&1 +} + # Sanitize the local git environment for use within a submodule. We # can't simply use clear_local_git_env since we want to preserve some # of the settings from GIT_CONFIG_PARAMETERS. @@ -780,7 +785,7 @@ cmd_summary() { while read -r mod_src mod_dst sha1_src sha1_dst status name do if test -z "$cached" && - test $sha1_dst = 0000000000000000000000000000000000000000 + is_zero_oid $sha1_dst then case "$mod_dst" in 160000)