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|
#!/bin/sh
#
# Copyright (c) 2008 Christian Couder
#
test_description='Tests replace refs functionality'
exec </dev/null
. ./test-lib.sh
add_and_commit_file()
{
_file="$1"
_msg="$2"
git add $_file || return $?
test_tick || return $?
git commit --quiet -m "$_file: $_msg"
}
HASH1=
HASH2=
HASH3=
HASH4=
HASH5=
HASH6=
HASH7=
test_expect_success 'set up buggy branch' '
echo "line 1" >> hello &&
echo "line 2" >> hello &&
echo "line 3" >> hello &&
echo "line 4" >> hello &&
add_and_commit_file hello "4 lines" &&
HASH1=$(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"
'
cat >tag.sig <<EOF
object $HASH2
type commit
tag mytag
tagger T A Gger <> 0 +0000
EOF
test_expect_success 'tag replaced commit' '
git mktag <tag.sig >.git/refs/tags/mytag 2>message
'
test_expect_success '"git fsck" works' '
git fsck master > fsck_master.out &&
grep "dangling commit $R" fsck_master.out &&
grep "dangling tag $(cat .git/refs/tags/mytag)" fsck_master.out &&
test -z "$(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 -l "$aa*")" &&
test_must_fail git replace -d $R &&
test_must_fail git replace -d &&
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)"
'
# 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 $PARA6 &&
git checkout master &&
cur=$(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_done
|
