[PATCH v2] filter-branch: fix errors caused by refs that cannot be used with ^0
"git filter-branch -- --all" print unwanted error messages when refs that
cannot be used with ^0 exist. Such refs can be created by "git replace" with
trees or blobs. Also, "git tag" with trees or blobs can create such refs.
---
git-filter-branch.sh | 14 ++++++++++++--
t/t7003-filter-branch.sh | 14 ++++++++++++++
2 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index 1b7e4b2cd..41efecb28 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 7cb60799b..04f79f32b 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
--
2.16.2.18.g09cb46d
Yuki Kokubun <orga.chem.job@gmail.com>