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authorYuki Kokubun <orga.chem.job@gmail.com>2018-03-25 16:54:58 +0000
committerJunio C Hamano <gitster@pobox.com>2018-03-25 10:12:27 -0700
commitf78ab355e7d91c70faf41ddad9577cffc3b4ee60 (patch)
treeb0a7bb304abd2fd4c1d6163710eea8e2676ea428
parentd32eb83c1db7d0a8bb54fe743c6d1dd674d372c5 (diff)
downloadgit-yk/filter-branch-non-committish-refs.tar.gz
filter-branch: fix errors caused by refs that point at non-committishyk/filter-branch-non-committish-refs
"git filter-branch -- --all" prints error messages when processing refs that point at objects that are not committish. Such refs can be created by "git replace" with trees or blobs. And also "git tag" with trees or blobs can create such refs. Filter these problematic refs out early, before they are seen by the logic to see which refs have been modified and which have been left intact (which is where the unwanted error messages come from), and warn that these refs are left unwritten while doing so. Signed-off-by: Yuki Kokubun <orga.chem.job@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rwxr-xr-xgit-filter-branch.sh14
-rwxr-xr-xt/t7003-filter-branch.sh14
2 files changed, 26 insertions, 2 deletions
diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index 1b7e4b2cdb..41efecb284 100755
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -251,8 +251,18 @@ done < "$tempdir"/backup-refs
# The refs should be updated if their heads were rewritten
git rev-parse --no-flags --revs-only --symbolic-full-name \
- --default HEAD "$@" > "$tempdir"/raw-heads || exit
-sed -e '/^^/d' "$tempdir"/raw-heads >"$tempdir"/heads
+ --default HEAD "$@" > "$tempdir"/raw-refs || exit
+while read ref
+do
+ case "$ref" in ^?*) continue ;; esac
+
+ if git rev-parse --verify "$ref"^0 >/dev/null 2>&1
+ then
+ echo "$ref"
+ else
+ warn "WARNING: not rewriting '$ref' (not a committish)"
+ fi
+done >"$tempdir"/heads <"$tempdir"/raw-refs
test -s "$tempdir"/heads ||
die "You must specify a ref to rewrite."
diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh
index 7cb60799be..04f79f32b4 100755
--- a/t/t7003-filter-branch.sh
+++ b/t/t7003-filter-branch.sh
@@ -470,4 +470,18 @@ test_expect_success 'tree-filter deals with object name vs pathname ambiguity' '
git show HEAD:$ambiguous
'
+test_expect_success 'rewrite repository including refs that point at non-commit object' '
+ test_when_finished "git reset --hard original" &&
+ tree=$(git rev-parse HEAD^{tree}) &&
+ test_when_finished "git replace -d $tree" &&
+ echo A >new &&
+ git add new &&
+ new_tree=$(git write-tree) &&
+ git replace $tree $new_tree &&
+ git tag -a -m "tag to a tree" treetag $new_tree &&
+ git reset --hard HEAD &&
+ git filter-branch -f -- --all >filter-output 2>&1 &&
+ ! fgrep fatal filter-output
+'
+
test_done