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50ef4e09c3
There are multiple trivial memory leaks in git-rerere(1). Fix those. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
738 lines
17 KiB
Bash
Executable file
738 lines
17 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2006 Johannes E. Schindelin
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#
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test_description='git rerere
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! [fifth] version1
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! [first] first
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! [fourth] version1
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! [main] initial
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! [second] prefer first over second
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! [third] version2
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------
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+ [third] version2
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+ [fifth] version1
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+ [fourth] version1
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+ + + [third^] third
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- [second] prefer first over second
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+ + [first] first
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+ [second^] second
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++++++ [main] initial
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'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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test_expect_success 'setup' '
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cat >a1 <<-\EOF &&
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Some title
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==========
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Whether '\''tis nobler in the mind to suffer
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The slings and arrows of outrageous fortune,
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Or to take arms against a sea of troubles,
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And by opposing end them? To die: to sleep;
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No more; and by a sleep to say we end
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The heart-ache and the thousand natural shocks
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That flesh is heir to, '\''tis a consummation
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Devoutly to be wish'\''d.
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EOF
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git add a1 &&
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test_tick &&
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git commit -q -a -m initial &&
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cat >>a1 <<-\EOF &&
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Some title
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==========
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To die, to sleep;
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To sleep: perchance to dream: ay, there'\''s the rub;
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For in that sleep of death what dreams may come
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When we have shuffled off this mortal coil,
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Must give us pause: there'\''s the respect
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That makes calamity of so long life;
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EOF
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git checkout -b first &&
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test_tick &&
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git commit -q -a -m first &&
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git checkout -b second main &&
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git show first:a1 |
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sed -e "s/To die, t/To die! T/" -e "s/Some title/Some Title/" >a1 &&
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echo "* END *" >>a1 &&
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test_tick &&
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git commit -q -a -m second
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'
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test_expect_success 'nothing recorded without rerere' '
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rm -rf .git/rr-cache &&
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git config rerere.enabled false &&
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test_must_fail git merge first &&
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! test -d .git/rr-cache
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'
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test_expect_success 'activate rerere, old style (conflicting merge)' '
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git reset --hard &&
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mkdir .git/rr-cache &&
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test_might_fail git config --unset rerere.enabled &&
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test_must_fail git merge first &&
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sha1=$(perl -pe "s/ .*//" .git/MERGE_RR) &&
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rr=.git/rr-cache/$sha1 &&
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grep "^=======\$" $rr/preimage &&
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! test -f $rr/postimage &&
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! test -f $rr/thisimage
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'
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test_expect_success 'rerere.enabled works, too' '
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rm -rf .git/rr-cache &&
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git config rerere.enabled true &&
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git reset --hard &&
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test_must_fail git merge first &&
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sha1=$(perl -pe "s/ .*//" .git/MERGE_RR) &&
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rr=.git/rr-cache/$sha1 &&
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grep ^=======$ $rr/preimage
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'
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test_expect_success 'set up rr-cache' '
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rm -rf .git/rr-cache &&
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git config rerere.enabled true &&
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git reset --hard &&
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test_must_fail git merge first &&
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sha1=$(perl -pe "s/ .*//" .git/MERGE_RR) &&
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rr=.git/rr-cache/$sha1
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'
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test_expect_success 'rr-cache looks sane' '
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# no postimage or thisimage yet
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! test -f $rr/postimage &&
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! test -f $rr/thisimage &&
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# preimage has right number of lines
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cnt=$(sed -ne "/^<<<<<<</,/^>>>>>>>/p" $rr/preimage | wc -l) &&
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echo $cnt &&
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test $cnt = 13
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'
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test_expect_success 'rerere diff' '
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git show first:a1 >a1 &&
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cat >expect <<-\EOF &&
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--- a/a1
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+++ b/a1
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@@ -1,4 +1,4 @@
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-Some Title
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+Some title
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==========
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Whether '\''tis nobler in the mind to suffer
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The slings and arrows of outrageous fortune,
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@@ -8,21 +8,11 @@
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The heart-ache and the thousand natural shocks
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That flesh is heir to, '\''tis a consummation
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Devoutly to be wish'\''d.
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-<<<<<<<
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-Some Title
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-==========
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-To die! To sleep;
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-=======
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Some title
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==========
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To die, to sleep;
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->>>>>>>
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To sleep: perchance to dream: ay, there'\''s the rub;
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For in that sleep of death what dreams may come
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When we have shuffled off this mortal coil,
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Must give us pause: there'\''s the respect
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That makes calamity of so long life;
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-<<<<<<<
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-=======
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-* END *
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->>>>>>>
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EOF
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git rerere diff >out &&
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test_cmp expect out
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'
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test_expect_success 'rerere status' '
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echo a1 >expect &&
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git rerere status >out &&
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test_cmp expect out
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'
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test_expect_success 'first postimage wins' '
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git show first:a1 | sed "s/To die: t/To die! T/" >expect &&
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git commit -q -a -m "prefer first over second" &&
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test -f $rr/postimage &&
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oldmtimepost=$(test-tool chmtime --get -60 $rr/postimage) &&
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git checkout -b third main &&
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git show second^:a1 | sed "s/To die: t/To die! T/" >a1 &&
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git commit -q -a -m third &&
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test_must_fail git merge first &&
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# rerere kicked in
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! grep "^=======\$" a1 &&
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test_cmp expect a1
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'
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test_expect_success 'rerere updates postimage timestamp' '
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newmtimepost=$(test-tool chmtime --get $rr/postimage) &&
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test $oldmtimepost -lt $newmtimepost
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'
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test_expect_success 'rerere clear' '
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mv $rr/postimage .git/post-saved &&
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echo "$sha1 a1" | perl -pe "y/\012/\000/" >.git/MERGE_RR &&
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git rerere clear &&
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! test -d $rr
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'
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test_expect_success 'leftover directory' '
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git reset --hard &&
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mkdir -p $rr &&
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test_must_fail git merge first &&
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test -f $rr/preimage
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'
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test_expect_success 'missing preimage' '
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git reset --hard &&
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mkdir -p $rr &&
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cp .git/post-saved $rr/postimage &&
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test_must_fail git merge first &&
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test -f $rr/preimage
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'
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test_expect_success 'set up for garbage collection tests' '
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mkdir -p $rr &&
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echo Hello >$rr/preimage &&
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echo World >$rr/postimage &&
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sha2=$(test_oid deadbeef) &&
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rr2=.git/rr-cache/$sha2 &&
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mkdir $rr2 &&
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echo Hello >$rr2/preimage &&
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almost_15_days_ago=$((60-15*86400)) &&
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just_over_15_days_ago=$((-1-15*86400)) &&
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almost_60_days_ago=$((60-60*86400)) &&
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just_over_60_days_ago=$((-1-60*86400)) &&
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test-tool chmtime =$just_over_60_days_ago $rr/preimage &&
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test-tool chmtime =$almost_60_days_ago $rr/postimage &&
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test-tool chmtime =$almost_15_days_ago $rr2/preimage
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'
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test_expect_success 'gc preserves young or recently used records' '
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git rerere gc &&
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test -f $rr/preimage &&
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test -f $rr2/preimage
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'
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test_expect_success 'old records rest in peace' '
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test-tool chmtime =$just_over_60_days_ago $rr/postimage &&
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test-tool chmtime =$just_over_15_days_ago $rr2/preimage &&
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git rerere gc &&
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! test -f $rr/preimage &&
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! test -f $rr2/preimage
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'
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rerere_gc_custom_expiry_test () {
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five_days="$1" right_now="$2"
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test_expect_success "rerere gc with custom expiry ($five_days, $right_now)" '
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rm -fr .git/rr-cache &&
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rr=.git/rr-cache/$ZERO_OID &&
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mkdir -p "$rr" &&
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>"$rr/preimage" &&
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>"$rr/postimage" &&
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two_days_ago=$((-2*86400)) &&
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test-tool chmtime =$two_days_ago "$rr/preimage" &&
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test-tool chmtime =$two_days_ago "$rr/postimage" &&
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find .git/rr-cache -type f | sort >original &&
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git -c "gc.rerereresolved=$five_days" \
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-c "gc.rerereunresolved=$five_days" rerere gc &&
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find .git/rr-cache -type f | sort >actual &&
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test_cmp original actual &&
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git -c "gc.rerereresolved=$five_days" \
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-c "gc.rerereunresolved=$right_now" rerere gc &&
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find .git/rr-cache -type f | sort >actual &&
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test_cmp original actual &&
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git -c "gc.rerereresolved=$right_now" \
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-c "gc.rerereunresolved=$right_now" rerere gc &&
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find .git/rr-cache -type f | sort >actual &&
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test_must_be_empty actual
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'
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}
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rerere_gc_custom_expiry_test 5 0
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rerere_gc_custom_expiry_test 5.days.ago now
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test_expect_success 'setup: file2 added differently in two branches' '
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git reset --hard &&
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git checkout -b fourth &&
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echo Hallo >file2 &&
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git add file2 &&
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test_tick &&
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git commit -m version1 &&
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git checkout third &&
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echo Bello >file2 &&
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git add file2 &&
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test_tick &&
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git commit -m version2 &&
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test_must_fail git merge fourth &&
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echo Cello >file2 &&
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git add file2 &&
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git commit -m resolution
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'
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test_expect_success 'resolution was recorded properly' '
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echo Cello >expected &&
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git reset --hard HEAD~2 &&
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git checkout -b fifth &&
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echo Hallo >file3 &&
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git add file3 &&
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test_tick &&
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git commit -m version1 &&
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git checkout third &&
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echo Bello >file3 &&
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git add file3 &&
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test_tick &&
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git commit -m version2 &&
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git tag version2 &&
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test_must_fail git merge fifth &&
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test_cmp expected file3 &&
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test_must_fail git update-index --refresh
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'
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test_expect_success 'rerere.autoupdate' '
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git config rerere.autoupdate true &&
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git reset --hard &&
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git checkout version2 &&
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test_must_fail git merge fifth &&
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git update-index --refresh
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'
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test_expect_success 'merge --rerere-autoupdate' '
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test_might_fail git config --unset rerere.autoupdate &&
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git reset --hard &&
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git checkout version2 &&
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test_must_fail git merge --rerere-autoupdate fifth &&
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git update-index --refresh
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'
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test_expect_success 'merge --no-rerere-autoupdate' '
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headblob=$(git rev-parse version2:file3) &&
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mergeblob=$(git rev-parse fifth:file3) &&
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cat >expected <<-EOF &&
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100644 $headblob 2 file3
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100644 $mergeblob 3 file3
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EOF
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git config rerere.autoupdate true &&
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git reset --hard &&
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git checkout version2 &&
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test_must_fail git merge --no-rerere-autoupdate fifth &&
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git ls-files -u >actual &&
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test_cmp expected actual
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'
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test_expect_success 'set up an unresolved merge' '
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headblob=$(git rev-parse version2:file3) &&
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mergeblob=$(git rev-parse fifth:file3) &&
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cat >expected.unresolved <<-EOF &&
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100644 $headblob 2 file3
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100644 $mergeblob 3 file3
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EOF
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test_might_fail git config --unset rerere.autoupdate &&
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git reset --hard &&
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git checkout version2 &&
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ancestor=$(git merge-base version2 fifth) &&
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test_must_fail git merge-recursive "$ancestor" -- HEAD fifth &&
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git ls-files --stage >failedmerge &&
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cp file3 file3.conflict &&
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git ls-files -u >actual &&
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test_cmp expected.unresolved actual
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'
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test_expect_success 'explicit rerere' '
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test_might_fail git config --unset rerere.autoupdate &&
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git rm -fr --cached . &&
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git update-index --index-info <failedmerge &&
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cp file3.conflict file3 &&
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test_must_fail git update-index --refresh -q &&
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git rerere &&
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git ls-files -u >actual &&
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test_cmp expected.unresolved actual
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'
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test_expect_success 'explicit rerere with autoupdate' '
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git config rerere.autoupdate true &&
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git rm -fr --cached . &&
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git update-index --index-info <failedmerge &&
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cp file3.conflict file3 &&
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test_must_fail git update-index --refresh -q &&
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git rerere &&
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git update-index --refresh
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'
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test_expect_success 'explicit rerere --rerere-autoupdate overrides' '
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git config rerere.autoupdate false &&
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git rm -fr --cached . &&
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git update-index --index-info <failedmerge &&
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cp file3.conflict file3 &&
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git rerere &&
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git ls-files -u >actual1 &&
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git rm -fr --cached . &&
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git update-index --index-info <failedmerge &&
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cp file3.conflict file3 &&
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git rerere --rerere-autoupdate &&
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git update-index --refresh &&
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git rm -fr --cached . &&
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git update-index --index-info <failedmerge &&
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cp file3.conflict file3 &&
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git rerere --rerere-autoupdate --no-rerere-autoupdate &&
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git ls-files -u >actual2 &&
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git rm -fr --cached . &&
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git update-index --index-info <failedmerge &&
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cp file3.conflict file3 &&
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git rerere --rerere-autoupdate --no-rerere-autoupdate --rerere-autoupdate &&
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git update-index --refresh &&
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test_cmp expected.unresolved actual1 &&
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test_cmp expected.unresolved actual2
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'
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test_expect_success 'rerere --no-no-rerere-autoupdate' '
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git rm -fr --cached . &&
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git update-index --index-info <failedmerge &&
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cp file3.conflict file3 &&
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test_must_fail git rerere --no-no-rerere-autoupdate 2>err &&
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test_grep [Uu]sage err &&
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test_must_fail git update-index --refresh
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'
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test_expect_success 'rerere -h' '
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test_must_fail git rerere -h >help &&
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test_grep [Uu]sage help
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'
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concat_insert () {
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last=$1
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shift
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cat early && printf "%s\n" "$@" && cat late "$last"
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}
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count_pre_post () {
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find .git/rr-cache/ -type f -name "preimage*" >actual &&
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test_line_count = "$1" actual &&
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find .git/rr-cache/ -type f -name "postimage*" >actual &&
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test_line_count = "$2" actual
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}
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merge_conflict_resolve () {
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git reset --hard &&
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test_must_fail git merge six.1 &&
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# Resolution is to replace 7 with 6.1 and 6.2 (i.e. take both)
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concat_insert short 6.1 6.2 >file1 &&
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concat_insert long 6.1 6.2 >file2
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}
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test_expect_success 'multiple identical conflicts' '
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rm -fr .git/rr-cache &&
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mkdir .git/rr-cache &&
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git reset --hard &&
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test_seq 1 6 >early &&
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>late &&
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test_seq 11 15 >short &&
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test_seq 111 120 >long &&
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concat_insert short >file1 &&
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concat_insert long >file2 &&
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git add file1 file2 &&
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git commit -m base &&
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git tag base &&
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git checkout -b six.1 &&
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concat_insert short 6.1 >file1 &&
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concat_insert long 6.1 >file2 &&
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git add file1 file2 &&
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git commit -m 6.1 &&
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git checkout -b six.2 HEAD^ &&
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concat_insert short 6.2 >file1 &&
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concat_insert long 6.2 >file2 &&
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git add file1 file2 &&
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git commit -m 6.2 &&
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# At this point, six.1 and six.2
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# - derive from common ancestor that has two files
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# 1...6 7 11..15 (file1) and 1...6 7 111..120 (file2)
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# - six.1 replaces these 7s with 6.1
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# - six.2 replaces these 7s with 6.2
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merge_conflict_resolve &&
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# Check that rerere knows that file1 and file2 have conflicts
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printf "%s\n" file1 file2 >expect &&
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git ls-files -u | sed -e "s/^.* //" | sort -u >actual &&
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test_cmp expect actual &&
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git rerere status | sort >actual &&
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test_cmp expect actual &&
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git rerere remaining >actual &&
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test_cmp expect actual &&
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count_pre_post 2 0 &&
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# Pretend that the conflicts were made quite some time ago
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test-tool chmtime -172800 $(find .git/rr-cache/ -type f) &&
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|
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# 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 &&
|
|
git rerere remaining >actual &&
|
|
test_must_be_empty 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 &&
|
|
|
|
git rerere remaining >actual &&
|
|
test_must_be_empty 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
|
|
test-tool chmtime -172800 $(find .git/rr-cache/ -type f) &&
|
|
|
|
# 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_expect_success 'rerere with unexpected conflict markers does not crash' '
|
|
git reset --hard &&
|
|
|
|
git checkout -b branch-1 main &&
|
|
echo "bar" >test &&
|
|
git add test &&
|
|
git commit -q -m two &&
|
|
|
|
git reset --hard &&
|
|
git checkout -b branch-2 main &&
|
|
echo "foo" >test &&
|
|
git add test &&
|
|
git commit -q -a -m one &&
|
|
|
|
test_must_fail git merge branch-1 &&
|
|
echo "<<<<<<< a" >test &&
|
|
git rerere &&
|
|
|
|
git rerere clear
|
|
'
|
|
|
|
test_expect_success 'rerere with inner conflict markers' '
|
|
git reset --hard &&
|
|
|
|
git checkout -b A main &&
|
|
echo "bar" >test &&
|
|
git add test &&
|
|
git commit -q -m two &&
|
|
echo "baz" >test &&
|
|
git add test &&
|
|
git commit -q -m three &&
|
|
|
|
git reset --hard &&
|
|
git checkout -b B main &&
|
|
echo "foo" >test &&
|
|
git add test &&
|
|
git commit -q -a -m one &&
|
|
|
|
test_must_fail git merge A~ &&
|
|
git add test &&
|
|
git commit -q -m "will solve conflicts later" &&
|
|
test_must_fail git merge A &&
|
|
|
|
echo "resolved" >test &&
|
|
git add test &&
|
|
git commit -q -m "solved conflict" &&
|
|
|
|
echo "resolved" >expect &&
|
|
|
|
git reset --hard HEAD~~ &&
|
|
test_must_fail git merge A~ &&
|
|
git add test &&
|
|
git commit -q -m "will solve conflicts later" &&
|
|
test_must_fail git merge A &&
|
|
cat test >actual &&
|
|
test_cmp expect actual &&
|
|
|
|
git add test &&
|
|
git commit -m "rerere solved conflict" &&
|
|
git reset --hard HEAD~ &&
|
|
test_must_fail git merge A &&
|
|
cat test >actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'setup simple stage 1 handling' '
|
|
test_create_repo stage_1_handling &&
|
|
(
|
|
cd stage_1_handling &&
|
|
|
|
test_seq 1 10 >original &&
|
|
git add original &&
|
|
git commit -m original &&
|
|
|
|
git checkout -b A main &&
|
|
git mv original A &&
|
|
git commit -m "rename to A" &&
|
|
|
|
git checkout -b B main &&
|
|
git mv original B &&
|
|
git commit -m "rename to B"
|
|
)
|
|
'
|
|
|
|
test_expect_success 'test simple stage 1 handling' '
|
|
(
|
|
cd stage_1_handling &&
|
|
|
|
git config rerere.enabled true &&
|
|
git checkout A^0 &&
|
|
test_must_fail git merge B^0
|
|
)
|
|
'
|
|
|
|
test_expect_success 'rerere does not crash with missing preimage' '
|
|
git config rerere.enabled true &&
|
|
|
|
echo bar >test &&
|
|
git add test &&
|
|
git commit -m "one" &&
|
|
git branch rerere_no_crash &&
|
|
|
|
echo foo >>test &&
|
|
git add test &&
|
|
git commit -m "two" &&
|
|
|
|
git checkout rerere_no_crash &&
|
|
echo "bar" >>test &&
|
|
git add test &&
|
|
git commit -m "three" &&
|
|
|
|
test_must_fail git rebase main &&
|
|
rm .git/rr-cache/*/preimage &&
|
|
git rebase --abort
|
|
'
|
|
|
|
test_expect_success 'rerere does not crash with unmatched conflict marker' '
|
|
git config rerere.enabled true &&
|
|
|
|
echo bar >test &&
|
|
git add test &&
|
|
git commit -m "one" &&
|
|
git branch rerere_no_preimage &&
|
|
|
|
cat >test <<-EOF &&
|
|
test
|
|
bar
|
|
foobar
|
|
EOF
|
|
git add test &&
|
|
git commit -m "two" &&
|
|
|
|
git checkout rerere_no_preimage &&
|
|
echo "bar" >>test &&
|
|
git add test &&
|
|
git commit -m "three" &&
|
|
|
|
cat >test <<-EOF &&
|
|
foobar
|
|
bar
|
|
bar
|
|
EOF
|
|
git add test &&
|
|
git commit -m "four" &&
|
|
|
|
test_must_fail git rebase main &&
|
|
cat >test <<-EOF &&
|
|
test
|
|
bar
|
|
<<<<<<< HEAD
|
|
foobar
|
|
bar
|
|
EOF
|
|
git add test &&
|
|
test_must_fail git rebase --continue
|
|
'
|
|
|
|
test_done
|