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-rwxr-xr-xt/t6050-replace.sh510
1 files changed, 510 insertions, 0 deletions
diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh
new file mode 100755
index 0000000..2500acc
--- /dev/null
+++ b/t/t6050-replace.sh
@@ -0,0 +1,510 @@
+#!/bin/sh
+#
+# Copyright (c) 2008 Christian Couder
+#
+test_description='Tests replace refs functionality'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY/lib-gpg.sh"
+
+add_and_commit_file ()
+{
+ _file="$1"
+ _msg="$2"
+
+ git add $_file || return $?
+ test_tick || return $?
+ git commit --quiet -m "$_file: $_msg"
+}
+
+commit_buffer_contains_parents ()
+{
+ git cat-file commit "$1" >payload &&
+ sed -n -e '/^$/q' -e '/^parent /p' <payload >actual &&
+ shift &&
+ for _parent
+ do
+ echo "parent $_parent"
+ done >expected &&
+ test_cmp expected actual
+}
+
+commit_peeling_shows_parents ()
+{
+ _parent_number=1
+ _commit="$1"
+ shift &&
+ for _parent
+ do
+ _found=$(git rev-parse --verify $_commit^$_parent_number) || return 1
+ test "$_found" = "$_parent" || return 1
+ _parent_number=$(( $_parent_number + 1 ))
+ done &&
+ test_must_fail git rev-parse --verify $_commit^$_parent_number 2>err &&
+ test_i18ngrep "Needed a single revision" err
+}
+
+commit_has_parents ()
+{
+ commit_buffer_contains_parents "$@" &&
+ commit_peeling_shows_parents "$@"
+}
+
+HASH1=
+HASH2=
+HASH3=
+HASH4=
+HASH5=
+HASH6=
+HASH7=
+
+test_expect_success 'set up buggy branch' '
+ echo "line 1" >>hello &&
+ echo "line 2" >>hello &&
+ echo "line 3" >>hello &&
+ echo "line 4" >>hello &&
+ add_and_commit_file hello "4 lines" &&
+ HASH1=$(git rev-parse --verify HEAD) &&
+ echo "line BUG" >>hello &&
+ echo "line 6" >>hello &&
+ echo "line 7" >>hello &&
+ echo "line 8" >>hello &&
+ add_and_commit_file hello "4 more lines with a BUG" &&
+ HASH2=$(git rev-parse --verify HEAD) &&
+ echo "line 9" >>hello &&
+ echo "line 10" >>hello &&
+ add_and_commit_file hello "2 more lines" &&
+ HASH3=$(git rev-parse --verify HEAD) &&
+ echo "line 11" >>hello &&
+ add_and_commit_file hello "1 more line" &&
+ HASH4=$(git rev-parse --verify HEAD) &&
+ sed -e "s/BUG/5/" hello >hello.new &&
+ mv hello.new hello &&
+ add_and_commit_file hello "BUG fixed" &&
+ HASH5=$(git rev-parse --verify HEAD) &&
+ echo "line 12" >>hello &&
+ echo "line 13" >>hello &&
+ add_and_commit_file hello "2 more lines" &&
+ HASH6=$(git rev-parse --verify HEAD) &&
+ echo "line 14" >>hello &&
+ echo "line 15" >>hello &&
+ echo "line 16" >>hello &&
+ add_and_commit_file hello "again 3 more lines" &&
+ HASH7=$(git rev-parse --verify HEAD)
+'
+
+test_expect_success 'replace the author' '
+ git cat-file commit $HASH2 | grep "author A U Thor" &&
+ R=$(git cat-file commit $HASH2 | sed -e "s/A U/O/" | git hash-object -t commit --stdin -w) &&
+ git cat-file commit $R | grep "author O Thor" &&
+ git update-ref refs/replace/$HASH2 $R &&
+ git show HEAD~5 | grep "O Thor" &&
+ git show $HASH2 | grep "O Thor"
+'
+
+test_expect_success 'test --no-replace-objects option' '
+ git cat-file commit $HASH2 | grep "author O Thor" &&
+ git --no-replace-objects cat-file commit $HASH2 | grep "author A U Thor" &&
+ git show $HASH2 | grep "O Thor" &&
+ git --no-replace-objects show $HASH2 | grep "A U Thor"
+'
+
+test_expect_success 'test GIT_NO_REPLACE_OBJECTS env variable' '
+ GIT_NO_REPLACE_OBJECTS=1 git cat-file commit $HASH2 | grep "author A U Thor" &&
+ GIT_NO_REPLACE_OBJECTS=1 git show $HASH2 | grep "A U Thor"
+'
+
+test_expect_success 'test core.usereplacerefs config option' '
+ test_config core.usereplacerefs false &&
+ git cat-file commit $HASH2 | grep "author A U Thor" &&
+ git show $HASH2 | grep "A U Thor"
+'
+
+cat >tag.sig <<EOF
+object $HASH2
+type commit
+tag mytag
+tagger T A Gger <> 0 +0000
+
+EOF
+
+test_expect_success 'tag replaced commit' '
+ git update-ref refs/tags/mytag $(git mktag <tag.sig)
+'
+
+test_expect_success '"git fsck" works' '
+ git fsck main >fsck_main.out &&
+ test_i18ngrep "dangling commit $R" fsck_main.out &&
+ test_i18ngrep "dangling tag $(git show-ref -s refs/tags/mytag)" fsck_main.out &&
+ test -z "$(git fsck)"
+'
+
+test_expect_success 'repack, clone and fetch work' '
+ git repack -a -d &&
+ git clone --no-hardlinks . clone_dir &&
+ (
+ cd clone_dir &&
+ git show HEAD~5 | grep "A U Thor" &&
+ git show $HASH2 | grep "A U Thor" &&
+ git cat-file commit $R &&
+ git repack -a -d &&
+ test_must_fail git cat-file commit $R &&
+ git fetch ../ "refs/replace/*:refs/replace/*" &&
+ git show HEAD~5 | grep "O Thor" &&
+ git show $HASH2 | grep "O Thor" &&
+ git cat-file commit $R
+ )
+'
+
+test_expect_success '"git replace" listing and deleting' '
+ test "$HASH2" = "$(git replace -l)" &&
+ test "$HASH2" = "$(git replace)" &&
+ aa=${HASH2%??????????????????????????????????????} &&
+ test "$HASH2" = "$(git replace --list "$aa*")" &&
+ test_must_fail git replace -d $R &&
+ test_must_fail git replace --delete &&
+ test_must_fail git replace -l -d $HASH2 &&
+ git replace -d $HASH2 &&
+ git show $HASH2 | grep "A U Thor" &&
+ test -z "$(git replace -l)"
+'
+
+test_expect_success '"git replace" replacing' '
+ git replace $HASH2 $R &&
+ git show $HASH2 | grep "O Thor" &&
+ test_must_fail git replace $HASH2 $R &&
+ git replace -f $HASH2 $R &&
+ test_must_fail git replace -f &&
+ test "$HASH2" = "$(git replace)"
+'
+
+test_expect_success '"git replace" resolves sha1' '
+ SHORTHASH2=$(git rev-parse --short=8 $HASH2) &&
+ git replace -d $SHORTHASH2 &&
+ git replace $SHORTHASH2 $R &&
+ git show $HASH2 | grep "O Thor" &&
+ test_must_fail git replace $HASH2 $R &&
+ git replace -f $HASH2 $R &&
+ test_must_fail git replace --force &&
+ test "$HASH2" = "$(git replace)"
+'
+
+# This creates a side branch where the bug in H2
+# does not appear because P2 is created by applying
+# H2 and squashing H5 into it.
+# P3, P4 and P6 are created by cherry-picking H3, H4
+# and H6 respectively.
+#
+# At this point, we should have the following:
+#
+# P2--P3--P4--P6
+# /
+# H1-H2-H3-H4-H5-H6-H7
+#
+# Then we replace H6 with P6.
+#
+test_expect_success 'create parallel branch without the bug' '
+ git replace -d $HASH2 &&
+ git show $HASH2 | grep "A U Thor" &&
+ git checkout $HASH1 &&
+ git cherry-pick $HASH2 &&
+ git show $HASH5 | git apply &&
+ git commit --amend -m "hello: 4 more lines WITHOUT the bug" hello &&
+ PARA2=$(git rev-parse --verify HEAD) &&
+ git cherry-pick $HASH3 &&
+ PARA3=$(git rev-parse --verify HEAD) &&
+ git cherry-pick $HASH4 &&
+ PARA4=$(git rev-parse --verify HEAD) &&
+ git cherry-pick $HASH6 &&
+ PARA6=$(git rev-parse --verify HEAD) &&
+ git replace $HASH6 $PARA6 &&
+ git checkout main &&
+ cur=$(git rev-parse --verify HEAD) &&
+ test "$cur" = "$HASH7" &&
+ git log --pretty=oneline | grep $PARA2 &&
+ git remote add cloned ./clone_dir
+'
+
+test_expect_success 'push to cloned repo' '
+ git push cloned $HASH6^:refs/heads/parallel &&
+ (
+ cd clone_dir &&
+ git checkout parallel &&
+ git log --pretty=oneline | grep $PARA2
+ )
+'
+
+test_expect_success 'push branch with replacement' '
+ git cat-file commit $PARA3 | grep "author A U Thor" &&
+ S=$(git cat-file commit $PARA3 | sed -e "s/A U/O/" | git hash-object -t commit --stdin -w) &&
+ git cat-file commit $S | grep "author O Thor" &&
+ git replace $PARA3 $S &&
+ git show $HASH6~2 | grep "O Thor" &&
+ git show $PARA3 | grep "O Thor" &&
+ git push cloned $HASH6^:refs/heads/parallel2 &&
+ (
+ cd clone_dir &&
+ git checkout parallel2 &&
+ git log --pretty=oneline | grep $PARA3 &&
+ git show $PARA3 | grep "A U Thor"
+ )
+'
+
+test_expect_success 'fetch branch with replacement' '
+ git branch tofetch $HASH6 &&
+ (
+ cd clone_dir &&
+ git fetch origin refs/heads/tofetch:refs/heads/parallel3 &&
+ git log --pretty=oneline parallel3 >output.txt &&
+ ! grep $PARA3 output.txt &&
+ git show $PARA3 >para3.txt &&
+ grep "A U Thor" para3.txt &&
+ git fetch origin "refs/replace/*:refs/replace/*" &&
+ git log --pretty=oneline parallel3 >output.txt &&
+ grep $PARA3 output.txt &&
+ git show $PARA3 >para3.txt &&
+ grep "O Thor" para3.txt
+ )
+'
+
+test_expect_success 'bisect and replacements' '
+ git bisect start $HASH7 $HASH1 &&
+ test "$PARA3" = "$(git rev-parse --verify HEAD)" &&
+ git bisect reset &&
+ GIT_NO_REPLACE_OBJECTS=1 git bisect start $HASH7 $HASH1 &&
+ test "$HASH4" = "$(git rev-parse --verify HEAD)" &&
+ git bisect reset &&
+ git --no-replace-objects bisect start $HASH7 $HASH1 &&
+ test "$HASH4" = "$(git rev-parse --verify HEAD)" &&
+ git bisect reset
+'
+
+test_expect_success 'index-pack and replacements' '
+ git --no-replace-objects rev-list --objects HEAD |
+ git --no-replace-objects pack-objects test- &&
+ git index-pack test-*.pack
+'
+
+test_expect_success 'not just commits' '
+ echo replaced >file &&
+ git add file &&
+ REPLACED=$(git rev-parse :file) &&
+ mv file file.replaced &&
+
+ echo original >file &&
+ git add file &&
+ ORIGINAL=$(git rev-parse :file) &&
+ git update-ref refs/replace/$ORIGINAL $REPLACED &&
+ mv file file.original &&
+
+ git checkout file &&
+ test_cmp file.replaced file
+'
+
+test_expect_success 'replaced and replacement objects must be of the same type' '
+ test_must_fail git replace mytag $HASH1 &&
+ test_must_fail git replace HEAD^{tree} HEAD~1 &&
+ BLOB=$(git rev-parse :file) &&
+ test_must_fail git replace HEAD^ $BLOB
+'
+
+test_expect_success '-f option bypasses the type check' '
+ git replace -f mytag $HASH1 &&
+ git replace --force HEAD^{tree} HEAD~1 &&
+ git replace -f HEAD^ $BLOB
+'
+
+test_expect_success 'git cat-file --batch works on replace objects' '
+ git replace | grep $PARA3 &&
+ echo $PARA3 | git cat-file --batch
+'
+
+test_expect_success 'test --format bogus' '
+ test_must_fail git replace --format bogus >/dev/null 2>&1
+'
+
+test_expect_success 'test --format short' '
+ git replace --format=short >actual &&
+ git replace >expected &&
+ test_cmp expected actual
+'
+
+test_expect_success 'test --format medium' '
+ H1=$(git --no-replace-objects rev-parse HEAD~1) &&
+ HT=$(git --no-replace-objects rev-parse HEAD^{tree}) &&
+ MYTAG=$(git --no-replace-objects rev-parse mytag) &&
+ {
+ echo "$H1 -> $BLOB" &&
+ echo "$BLOB -> $REPLACED" &&
+ echo "$HT -> $H1" &&
+ echo "$PARA3 -> $S" &&
+ echo "$MYTAG -> $HASH1"
+ } | sort >expected &&
+ git replace -l --format medium | sort >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'test --format long' '
+ {
+ echo "$H1 (commit) -> $BLOB (blob)" &&
+ echo "$BLOB (blob) -> $REPLACED (blob)" &&
+ echo "$HT (tree) -> $H1 (commit)" &&
+ echo "$PARA3 (commit) -> $S (commit)" &&
+ echo "$MYTAG (tag) -> $HASH1 (commit)"
+ } | sort >expected &&
+ git replace --format=long | sort >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'setup fake editors' '
+ write_script fakeeditor <<-\EOF &&
+ sed -e "s/A U Thor/A fake Thor/" "$1" >"$1.new"
+ mv "$1.new" "$1"
+ EOF
+ write_script failingfakeeditor <<-\EOF
+ ./fakeeditor "$@"
+ false
+ EOF
+'
+
+test_expect_success '--edit with and without already replaced object' '
+ test_must_fail env GIT_EDITOR=./fakeeditor git replace --edit "$PARA3" &&
+ GIT_EDITOR=./fakeeditor git replace --force --edit "$PARA3" &&
+ git replace -l | grep "$PARA3" &&
+ git cat-file commit "$PARA3" | grep "A fake Thor" &&
+ git replace -d "$PARA3" &&
+ GIT_EDITOR=./fakeeditor git replace --edit "$PARA3" &&
+ git replace -l | grep "$PARA3" &&
+ git cat-file commit "$PARA3" | grep "A fake Thor"
+'
+
+test_expect_success '--edit and change nothing or command failed' '
+ git replace -d "$PARA3" &&
+ test_must_fail env GIT_EDITOR=true git replace --edit "$PARA3" &&
+ test_must_fail env GIT_EDITOR="./failingfakeeditor" git replace --edit "$PARA3" &&
+ GIT_EDITOR=./fakeeditor git replace --edit "$PARA3" &&
+ git replace -l | grep "$PARA3" &&
+ git cat-file commit "$PARA3" | grep "A fake Thor"
+'
+
+test_expect_success 'replace ref cleanup' '
+ test -n "$(git replace)" &&
+ git replace -d $(git replace) &&
+ test -z "$(git replace)"
+'
+
+test_expect_success '--graft with and without already replaced object' '
+ git log --oneline >log &&
+ test_line_count = 7 log &&
+ git replace --graft $HASH5 &&
+ git log --oneline >log &&
+ test_line_count = 3 log &&
+ commit_has_parents $HASH5 &&
+ test_must_fail git replace --graft $HASH5 $HASH4 $HASH3 &&
+ git replace --force -g $HASH5 $HASH4 $HASH3 &&
+ commit_has_parents $HASH5 $HASH4 $HASH3 &&
+ git replace -d $HASH5
+'
+
+test_expect_success '--graft using a tag as the new parent' '
+ git tag new_parent $HASH5 &&
+ git replace --graft $HASH7 new_parent &&
+ commit_has_parents $HASH7 $HASH5 &&
+ git replace -d $HASH7 &&
+ git tag -a -m "annotated new parent tag" annotated_new_parent $HASH5 &&
+ git replace --graft $HASH7 annotated_new_parent &&
+ commit_has_parents $HASH7 $HASH5 &&
+ git replace -d $HASH7
+'
+
+test_expect_success '--graft using a tag as the replaced object' '
+ git tag replaced_object $HASH7 &&
+ git replace --graft replaced_object $HASH5 &&
+ commit_has_parents $HASH7 $HASH5 &&
+ git replace -d $HASH7 &&
+ git tag -a -m "annotated replaced object tag" annotated_replaced_object $HASH7 &&
+ git replace --graft annotated_replaced_object $HASH5 &&
+ commit_has_parents $HASH7 $HASH5 &&
+ git replace -d $HASH7
+'
+
+test_expect_success GPG 'set up a signed commit' '
+ echo "line 17" >>hello &&
+ echo "line 18" >>hello &&
+ git add hello &&
+ test_tick &&
+ git commit --quiet -S -m "hello: 2 more lines in a signed commit" &&
+ HASH8=$(git rev-parse --verify HEAD) &&
+ git verify-commit $HASH8
+'
+
+test_expect_success GPG '--graft with a signed commit' '
+ git cat-file commit $HASH8 >orig &&
+ git replace --graft $HASH8 &&
+ git cat-file commit $HASH8 >repl &&
+ commit_has_parents $HASH8 &&
+ test_must_fail git verify-commit $HASH8 &&
+ sed -n -e "/^tree /p" -e "/^author /p" -e "/^committer /p" orig >expected &&
+ echo >>expected &&
+ sed -e "/^$/q" repl >actual &&
+ test_cmp expected actual &&
+ git replace -d $HASH8
+'
+
+test_expect_success GPG 'set up a merge commit with a mergetag' '
+ git reset --hard HEAD &&
+ git checkout -b test_branch HEAD~2 &&
+ echo "line 1 from test branch" >>hello &&
+ echo "line 2 from test branch" >>hello &&
+ git add hello &&
+ test_tick &&
+ git commit -m "hello: 2 more lines from a test branch" &&
+ HASH9=$(git rev-parse --verify HEAD) &&
+ git tag -s -m "tag for testing with a mergetag" test_tag HEAD &&
+ git checkout main &&
+ git merge -s ours test_tag &&
+ HASH10=$(git rev-parse --verify HEAD) &&
+ git cat-file commit $HASH10 | grep "^mergetag object"
+'
+
+test_expect_success GPG '--graft on a commit with a mergetag' '
+ test_must_fail git replace --graft $HASH10 $HASH8^1 &&
+ git replace --graft $HASH10 $HASH8^1 $HASH9 &&
+ git replace -d $HASH10
+'
+
+test_expect_success '--convert-graft-file' '
+ git checkout -b with-graft-file &&
+ test_commit root2 &&
+ git reset --hard root2^ &&
+ test_commit root1 &&
+ test_commit after-root1 &&
+ test_tick &&
+ git merge -m merge-root2 root2 &&
+
+ : add and convert graft file &&
+ printf "%s\n%s %s\n\n# comment\n%s\n" \
+ $(git rev-parse HEAD^^ HEAD^ HEAD^^ HEAD^2) \
+ >.git/info/grafts &&
+ git status 2>stderr &&
+ test_i18ngrep "hint:.*grafts is deprecated" stderr &&
+ git replace --convert-graft-file 2>stderr &&
+ test_i18ngrep ! "hint:.*grafts is deprecated" stderr &&
+ test_path_is_missing .git/info/grafts &&
+
+ : verify that the history is now "grafted" &&
+ git rev-list HEAD >out &&
+ test_line_count = 4 out &&
+
+ : create invalid graft file and verify that it is not deleted &&
+ test_when_finished "rm -f .git/info/grafts" &&
+ echo $EMPTY_BLOB $EMPTY_TREE >.git/info/grafts &&
+ test_must_fail git replace --convert-graft-file 2>err &&
+ test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" err &&
+ test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" .git/info/grafts
+'
+
+test_done
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-15 19:23:09 +0000