diff options
Diffstat (limited to 't/t4200-rerere.sh')
| -rwxr-xr-x | t/t4200-rerere.sh | 566 |
1 files changed, 444 insertions, 122 deletions
diff --git a/t/t4200-rerere.sh b/t/t4200-rerere.sh index 70856d07ed..1a080e7823 100755 --- a/t/t4200-rerere.sh +++ b/t/t4200-rerere.sh @@ -4,237 +4,559 @@ # test_description='git rerere + +! [fifth] version1 + ! [first] first + ! [fourth] version1 + ! [master] initial + ! [second] prefer first over second + ! [third] version2 +------ + + [third] version2 ++ [fifth] version1 + + [fourth] version1 ++ + + [third^] third + - [second] prefer first over second + + + [first] first + + [second^] second +++++++ [master] initial ' . ./test-lib.sh -test_expect_success 'setup' " - cat > a1 <<- EOF && +test_expect_success 'setup' ' + cat >a1 <<-\EOF && Some title ========== - Whether 'tis nobler in the mind to suffer + Whether '\''tis nobler in the mind to suffer The slings and arrows of outrageous fortune, Or to take arms against a sea of troubles, And by opposing end them? To die: to sleep; No more; and by a sleep to say we end The heart-ache and the thousand natural shocks - That flesh is heir to, 'tis a consummation - Devoutly to be wish'd. + That flesh is heir to, '\''tis a consummation + Devoutly to be wish'\''d. EOF git add a1 && + test_tick && git commit -q -a -m initial && - git checkout -b first && - cat >> a1 <<- EOF && + cat >>a1 <<-\EOF && Some title ========== To die, to sleep; - To sleep: perchance to dream: ay, there's the rub; + To sleep: perchance to dream: ay, there'\''s the rub; For in that sleep of death what dreams may come When we have shuffled off this mortal coil, - Must give us pause: there's the respect + Must give us pause: there'\''s the respect That makes calamity of so long life; EOF + + git checkout -b first && + test_tick && git commit -q -a -m first && git checkout -b second master && git show first:a1 | - sed -e 's/To die, t/To die! T/' -e 's/Some title/Some Title/' > a1 && - echo '* END *' >>a1 && + sed -e "s/To die, t/To die! T/" -e "s/Some title/Some Title/" >a1 && + echo "* END *" >>a1 && + test_tick && git commit -q -a -m second -" +' test_expect_success 'nothing recorded without rerere' ' - (rm -rf .git/rr-cache; git config rerere.enabled false) && + rm -rf .git/rr-cache && + git config rerere.enabled false && test_must_fail git merge first && ! test -d .git/rr-cache ' -# activate rerere, old style -test_expect_success 'conflicting merge' ' +test_expect_success 'activate rerere, old style (conflicting merge)' ' git reset --hard && mkdir .git/rr-cache && - git config --unset rerere.enabled && - test_must_fail git merge first -' + test_might_fail git config --unset rerere.enabled && + test_must_fail git merge first && -sha1=$(perl -pe 's/ .*//' .git/MERGE_RR) -rr=.git/rr-cache/$sha1 -test_expect_success 'recorded preimage' "grep ^=======$ $rr/preimage" + sha1=$(perl -pe "s/ .*//" .git/MERGE_RR) && + rr=.git/rr-cache/$sha1 && + grep "^=======\$" $rr/preimage && + ! test -f $rr/postimage && + ! test -f $rr/thisimage +' test_expect_success 'rerere.enabled works, too' ' rm -rf .git/rr-cache && git config rerere.enabled true && git reset --hard && test_must_fail git merge first && + + sha1=$(perl -pe "s/ .*//" .git/MERGE_RR) && + rr=.git/rr-cache/$sha1 && grep ^=======$ $rr/preimage ' -test_expect_success 'no postimage or thisimage yet' \ - "test ! -f $rr/postimage -a ! -f $rr/thisimage" +test_expect_success 'set up rr-cache' ' + rm -rf .git/rr-cache && + git config rerere.enabled true && + git reset --hard && + test_must_fail git merge first && + sha1=$(perl -pe "s/ .*//" .git/MERGE_RR) && + rr=.git/rr-cache/$sha1 +' -test_expect_success 'preimage has right number of lines' ' +test_expect_success 'rr-cache looks sane' ' + # no postimage or thisimage yet + ! test -f $rr/postimage && + ! test -f $rr/thisimage && + # preimage has right number of lines cnt=$(sed -ne "/^<<<<<<</,/^>>>>>>>/p" $rr/preimage | wc -l) && + echo $cnt && test $cnt = 13 +' +test_expect_success 'rerere diff' ' + git show first:a1 >a1 && + cat >expect <<-\EOF && + --- a/a1 + +++ b/a1 + @@ -1,4 +1,4 @@ + -Some Title + +Some title + ========== + Whether '\''tis nobler in the mind to suffer + The slings and arrows of outrageous fortune, + @@ -8,21 +8,11 @@ + The heart-ache and the thousand natural shocks + That flesh is heir to, '\''tis a consummation + Devoutly to be wish'\''d. + -<<<<<<< + -Some Title + -========== + -To die! To sleep; + -======= + Some title + ========== + To die, to sleep; + ->>>>>>> + To sleep: perchance to dream: ay, there'\''s the rub; + For in that sleep of death what dreams may come + When we have shuffled off this mortal coil, + Must give us pause: there'\''s the respect + That makes calamity of so long life; + -<<<<<<< + -======= + -* END * + ->>>>>>> + EOF + git rerere diff >out && + test_cmp expect out ' -git show first:a1 > a1 - -cat > expect << EOF ---- a/a1 -+++ b/a1 -@@ -1,4 +1,4 @@ --Some Title -+Some title - ========== - Whether 'tis nobler in the mind to suffer - The slings and arrows of outrageous fortune, -@@ -8,21 +8,11 @@ - The heart-ache and the thousand natural shocks - That flesh is heir to, 'tis a consummation - Devoutly to be wish'd. --<<<<<<< --Some Title --========== --To die! To sleep; --======= - Some title - ========== - To die, to sleep; -->>>>>>> - To sleep: perchance to dream: ay, there's the rub; - For in that sleep of death what dreams may come - When we have shuffled off this mortal coil, - Must give us pause: there's the respect - That makes calamity of so long life; --<<<<<<< --======= --* END * -->>>>>>> -EOF -git rerere diff > out - -test_expect_success 'rerere diff' 'test_cmp expect out' - -cat > expect << EOF -a1 -EOF - -git rerere status > out - -test_expect_success 'rerere status' 'test_cmp expect out' - -test_expect_success 'commit succeeds' \ - "git commit -q -a -m 'prefer first over second'" - -test_expect_success 'recorded postimage' "test -f $rr/postimage" - -test_expect_success 'another conflicting merge' ' - git checkout -b third master && - git show second^:a1 | sed "s/To die: t/To die! T/" > a1 && - git commit -q -a -m third && - test_must_fail git pull . first +test_expect_success 'rerere status' ' + echo a1 >expect && + git rerere status >out && + test_cmp expect out ' -git show first:a1 | sed 's/To die: t/To die! T/' > expect -test_expect_success 'rerere kicked in' "! grep ^=======$ a1" +test_expect_success 'first postimage wins' ' + git show first:a1 | sed "s/To die: t/To die! T/" >expect && -test_expect_success 'rerere prefers first change' 'test_cmp a1 expect' + git commit -q -a -m "prefer first over second" && + test -f $rr/postimage && -rm $rr/postimage -echo "$sha1 a1" | perl -pe 'y/\012/\000/' > .git/MERGE_RR + oldmtimepost=$(test-chmtime -v -60 $rr/postimage | cut -f 1) && -test_expect_success 'rerere clear' 'git rerere clear' + git checkout -b third master && + git show second^:a1 | sed "s/To die: t/To die! T/" >a1 && + git commit -q -a -m third && -test_expect_success 'clear removed the directory' "test ! -d $rr" + test_must_fail git merge first && + # rerere kicked in + ! grep "^=======\$" a1 && + test_cmp expect a1 +' -mkdir $rr -echo Hello > $rr/preimage -echo World > $rr/postimage +test_expect_success 'rerere updates postimage timestamp' ' + newmtimepost=$(test-chmtime -v +0 $rr/postimage | cut -f 1) && + test $oldmtimepost -lt $newmtimepost +' + +test_expect_success 'rerere clear' ' + mv $rr/postimage .git/post-saved && + echo "$sha1 a1" | perl -pe "y/\012/\000/" >.git/MERGE_RR && + git rerere clear && + ! test -d $rr +' -sha2=4000000000000000000000000000000000000000 -rr2=.git/rr-cache/$sha2 -mkdir $rr2 -echo Hello > $rr2/preimage +test_expect_success 'leftover directory' ' + git reset --hard && + mkdir -p $rr && + test_must_fail git merge first && + test -f $rr/preimage +' -almost_15_days_ago=$((60-15*86400)) -just_over_15_days_ago=$((-1-15*86400)) -almost_60_days_ago=$((60-60*86400)) -just_over_60_days_ago=$((-1-60*86400)) +test_expect_success 'missing preimage' ' + git reset --hard && + mkdir -p $rr && + cp .git/post-saved $rr/postimage && + test_must_fail git merge first && + test -f $rr/preimage +' -test-chmtime =$almost_60_days_ago $rr/preimage -test-chmtime =$almost_15_days_ago $rr2/preimage +test_expect_success 'set up for garbage collection tests' ' + mkdir -p $rr && + echo Hello >$rr/preimage && + echo World >$rr/postimage && -test_expect_success 'garbage collection (part1)' 'git rerere gc' + sha2=4000000000000000000000000000000000000000 && + rr2=.git/rr-cache/$sha2 && + mkdir $rr2 && + echo Hello >$rr2/preimage && -test_expect_success 'young records still live' \ - "test -f $rr/preimage && test -f $rr2/preimage" + almost_15_days_ago=$((60-15*86400)) && + just_over_15_days_ago=$((-1-15*86400)) && + almost_60_days_ago=$((60-60*86400)) && + just_over_60_days_ago=$((-1-60*86400)) && -test-chmtime =$just_over_60_days_ago $rr/preimage -test-chmtime =$just_over_15_days_ago $rr2/preimage + test-chmtime =$just_over_60_days_ago $rr/preimage && + test-chmtime =$almost_60_days_ago $rr/postimage && + test-chmtime =$almost_15_days_ago $rr2/preimage +' -test_expect_success 'garbage collection (part2)' 'git rerere gc' +test_expect_success 'gc preserves young or recently used records' ' + git rerere gc && + test -f $rr/preimage && + test -f $rr2/preimage +' -test_expect_success 'old records rest in peace' \ - "test ! -f $rr/preimage && test ! -f $rr2/preimage" +test_expect_success 'old records rest in peace' ' + test-chmtime =$just_over_60_days_ago $rr/postimage && + test-chmtime =$just_over_15_days_ago $rr2/preimage && + git rerere gc && + ! test -f $rr/preimage && + ! test -f $rr2/preimage +' -test_expect_success 'file2 added differently in two branches' ' +test_expect_success 'setup: file2 added differently in two branches' ' git reset --hard && + git checkout -b fourth && - echo Hallo > file2 && + echo Hallo >file2 && git add file2 && + test_tick && git commit -m version1 && + git checkout third && - echo Bello > file2 && + echo Bello >file2 && git add file2 && + test_tick && git commit -m version2 && + test_must_fail git merge fourth && - echo Cello > file2 && + echo Cello >file2 && git add file2 && git commit -m resolution ' test_expect_success 'resolution was recorded properly' ' + echo Cello >expected && + git reset --hard HEAD~2 && git checkout -b fifth && - echo Hallo > file3 && + + echo Hallo >file3 && git add file3 && + test_tick && git commit -m version1 && + git checkout third && - echo Bello > file3 && + echo Bello >file3 && git add file3 && + test_tick && git commit -m version2 && git tag version2 && + test_must_fail git merge fifth && - test Cello = "$(cat file3)" && - test 0 != $(git ls-files -u | wc -l) + test_cmp expected file3 && + test_must_fail git update-index --refresh ' test_expect_success 'rerere.autoupdate' ' - git config rerere.autoupdate true + git config rerere.autoupdate true && git reset --hard && git checkout version2 && test_must_fail git merge fifth && - test 0 = $(git ls-files -u | wc -l) + git update-index --refresh ' test_expect_success 'merge --rerere-autoupdate' ' - git config --unset rerere.autoupdate + test_might_fail git config --unset rerere.autoupdate && git reset --hard && git checkout version2 && test_must_fail git merge --rerere-autoupdate fifth && - test 0 = $(git ls-files -u | wc -l) + git update-index --refresh ' test_expect_success 'merge --no-rerere-autoupdate' ' - git config rerere.autoupdate true + headblob=$(git rev-parse version2:file3) && + mergeblob=$(git rev-parse fifth:file3) && + cat >expected <<-EOF && + 100644 $headblob 2 file3 + 100644 $mergeblob 3 file3 + EOF + + git config rerere.autoupdate true && git reset --hard && git checkout version2 && test_must_fail git merge --no-rerere-autoupdate fifth && - test 2 = $(git ls-files -u | wc -l) + git ls-files -u >actual && + test_cmp expected actual +' + +test_expect_success 'set up an unresolved merge' ' + headblob=$(git rev-parse version2:file3) && + mergeblob=$(git rev-parse fifth:file3) && + cat >expected.unresolved <<-EOF && + 100644 $headblob 2 file3 + 100644 $mergeblob 3 file3 + EOF + + test_might_fail git config --unset rerere.autoupdate && + git reset --hard && + git checkout version2 && + fifth=$(git rev-parse fifth) && + echo "$fifth branch 'fifth' of ." | + git fmt-merge-msg >msg && + ancestor=$(git merge-base version2 fifth) && + test_must_fail git merge-recursive "$ancestor" -- HEAD fifth && + + git ls-files --stage >failedmerge && + cp file3 file3.conflict && + + git ls-files -u >actual && + test_cmp expected.unresolved actual +' + +test_expect_success 'explicit rerere' ' + test_might_fail git config --unset rerere.autoupdate && + git rm -fr --cached . && + git update-index --index-info <failedmerge && + cp file3.conflict file3 && + test_must_fail git update-index --refresh -q && + + git rerere && + git ls-files -u >actual && + test_cmp expected.unresolved actual +' + +test_expect_success 'explicit rerere with autoupdate' ' + git config rerere.autoupdate true && + git rm -fr --cached . && + git update-index --index-info <failedmerge && + cp file3.conflict file3 && + test_must_fail git update-index --refresh -q && + + git rerere && + git update-index --refresh +' + +test_expect_success 'explicit rerere --rerere-autoupdate overrides' ' + git config rerere.autoupdate false && + git rm -fr --cached . && + git update-index --index-info <failedmerge && + cp file3.conflict file3 && + git rerere && + git ls-files -u >actual1 && + + git rm -fr --cached . && + git update-index --index-info <failedmerge && + cp file3.conflict file3 && + git rerere --rerere-autoupdate && + git update-index --refresh && + + git rm -fr --cached . && + git update-index --index-info <failedmerge && + cp file3.conflict file3 && + git rerere --rerere-autoupdate --no-rerere-autoupdate && + git ls-files -u >actual2 && + + git rm -fr --cached . && + git update-index --index-info <failedmerge && + cp file3.conflict file3 && + git rerere --rerere-autoupdate --no-rerere-autoupdate --rerere-autoupdate && + git update-index --refresh && + + test_cmp expected.unresolved actual1 && + test_cmp expected.unresolved actual2 +' + +test_expect_success 'rerere --no-no-rerere-autoupdate' ' + git rm -fr --cached . && + git update-index --index-info <failedmerge && + cp file3.conflict file3 && + test_must_fail git rerere --no-no-rerere-autoupdate 2>err && + test_i18ngrep [Uu]sage err && + test_must_fail git update-index --refresh +' + +test_expect_success 'rerere -h' ' + test_must_fail git rerere -h >help && + test_i18ngrep [Uu]sage help +' + +concat_insert () { + last=$1 + shift + cat early && printf "%s\n" "$@" && cat late "$last" +} + +count_pre_post () { + find .git/rr-cache/ -type f -name "preimage*" >actual && + test_line_count = "$1" actual && + find .git/rr-cache/ -type f -name "postimage*" >actual && + test_line_count = "$2" actual +} + +test_expect_success 'rerere gc' ' + find .git/rr-cache -type f >original && + xargs test-chmtime -172800 <original && + + git -c gc.rerereresolved=5 -c gc.rerereunresolved=5 rerere gc && + find .git/rr-cache -type f >actual && + test_cmp original actual && + + git -c gc.rerereresolved=5 -c gc.rerereunresolved=0 rerere gc && + find .git/rr-cache -type f >actual && + test_cmp original actual && + + git -c gc.rerereresolved=0 -c gc.rerereunresolved=0 rerere gc && + find .git/rr-cache -type f >actual && + >expect && + test_cmp expect actual +' + +merge_conflict_resolve () { + git reset --hard && + test_must_fail git merge six.1 && + # Resolution is to replace 7 with 6.1 and 6.2 (i.e. take both) + concat_insert short 6.1 6.2 >file1 && + concat_insert long 6.1 6.2 >file2 +} + +test_expect_success 'multiple identical conflicts' ' + git reset --hard && + + test_seq 1 6 >early && + >late && + test_seq 11 15 >short && + test_seq 111 120 >long && + concat_insert short >file1 && + concat_insert long >file2 && + git add file1 file2 && + git commit -m base && + git tag base && + git checkout -b six.1 && + concat_insert short 6.1 >file1 && + concat_insert long 6.1 >file2 && + git add file1 file2 && + git commit -m 6.1 && + git checkout -b six.2 HEAD^ && + concat_insert short 6.2 >file1 && + concat_insert long 6.2 >file2 && + git add file1 file2 && + git commit -m 6.2 && + + # At this point, six.1 and six.2 + # - derive from common ancestor that has two files + # 1...6 7 11..15 (file1) and 1...6 7 111..120 (file2) + # - six.1 replaces these 7s with 6.1 + # - six.2 replaces these 7s with 6.2 + + merge_conflict_resolve && + + # Check that rerere knows that file1 and file2 have conflicts + + printf "%s\n" file1 file2 >expect && + git ls-files -u | sed -e "s/^.* //" | sort -u >actual && + test_cmp expect actual && + + git rerere status | sort >actual && + test_cmp expect actual && + + git rerere remaining >actual && + test_cmp expect actual && + + count_pre_post 2 0 && + + # Pretend that the conflicts were made quite some time ago + find .git/rr-cache/ -type f | xargs test-chmtime -172800 && + + # Unresolved entries have not expired yet + git -c gc.rerereresolved=5 -c gc.rerereunresolved=5 rerere gc && + count_pre_post 2 0 && + + # Unresolved entries have expired + git -c gc.rerereresolved=5 -c gc.rerereunresolved=1 rerere gc && + count_pre_post 0 0 && + + # Recreate the conflicted state + merge_conflict_resolve && + count_pre_post 2 0 && + + # Clear it + git rerere clear && + count_pre_post 0 0 && + + # Recreate the conflicted state + merge_conflict_resolve && + count_pre_post 2 0 && + + # We resolved file1 and file2 + git rerere && + >expect && + git rerere remaining >actual && + test_cmp expect actual && + + # We must have recorded both of them + count_pre_post 2 2 && + + # Now we should be able to resolve them both + git reset --hard && + test_must_fail git merge six.1 && + git rerere && + + >expect && + git rerere remaining >actual && + test_cmp expect actual && + + concat_insert short 6.1 6.2 >file1.expect && + concat_insert long 6.1 6.2 >file2.expect && + test_cmp file1.expect file1 && + test_cmp file2.expect file2 && + + # Forget resolution for file2 + git rerere forget file2 && + echo file2 >expect && + git rerere status >actual && + test_cmp expect actual && + count_pre_post 2 1 && + + # file2 already has correct resolution, so record it again + git rerere && + + # Pretend that the resolutions are old again + find .git/rr-cache/ -type f | xargs test-chmtime -172800 && + + # Resolved entries have not expired yet + git -c gc.rerereresolved=5 -c gc.rerereunresolved=5 rerere gc && + + count_pre_post 2 2 && + + # Resolved entries have expired + git -c gc.rerereresolved=1 -c gc.rerereunresolved=5 rerere gc && + count_pre_post 0 0 ' test_done |