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https://github.com/git/git
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6e96cb5286
These two configuration variables are described in the documentation
to take an expiry period expressed in the number of days:
gc.rerereResolved::
Records of conflicted merge you resolved earlier are
kept for this many days when 'git rerere gc' is run.
The default is 60 days.
gc.rerereUnresolved::
Records of conflicted merge you have not resolved are
kept for this many days when 'git rerere gc' is run.
The default is 15 days.
There is no strong reason not to allow a more general "approxidate"
expiry specification, e.g. "5.days.ago", or "never".
Rename the config_get_expiry() helper introduced in the previous
step to git_config_get_expiry_in_days() and move it to a more
generic place, config.c, and use date.c::parse_expiry_date() to do
so. Give it an ability to allow the caller to tell among three
cases (i.e. there is no "gc.rerereResolved" config, there is and it
is correctly parsed into the *expiry variable, and there was an
error in parsing the given value). The current caller can work
correctly without using the return value, though.
In the future, we may find other variables that only allow an
integer that specifies "this many days" or other unit of time, and
when it happens we may need to drop "_days" suffix from the name of
the function and instead pass the "scale" value as another parameter.
But this will do for now.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
583 lines
14 KiB
Bash
Executable file
583 lines
14 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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! [master] 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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++++++ [master] initial
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'
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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 master &&
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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-chmtime -v -60 $rr/postimage | cut -f 1) &&
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git checkout -b third master &&
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git show second^:a1 | sed "s/To die: t/To die! T/" >a1 &&
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git commit -q -a -m third &&
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test_must_fail git merge first &&
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# rerere kicked in
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! grep "^=======\$" a1 &&
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test_cmp expect a1
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'
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test_expect_success 'rerere updates postimage timestamp' '
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newmtimepost=$(test-chmtime -v +0 $rr/postimage | cut -f 1) &&
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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 >$rr/postimage &&
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sha2=4000000000000000000000000000000000000000 &&
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rr2=.git/rr-cache/$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-chmtime =$just_over_60_days_ago $rr/preimage &&
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test-chmtime =$almost_60_days_ago $rr/postimage &&
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test-chmtime =$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 $rr2/preimage
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'
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test_expect_success 'old records rest in peace' '
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test-chmtime =$just_over_60_days_ago $rr/postimage &&
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test-chmtime =$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, $right_now)" '
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rm -fr .git/rr-cache &&
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rr=.git/rr-cache/$_z40 &&
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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-chmtime =$two_days_ago "$rr/preimage" &&
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test-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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>expect &&
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test_cmp expect 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 $mergeblob 3 file3
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EOF
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test_might_fail git config --unset rerere.autoupdate &&
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git reset --hard &&
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git checkout version2 &&
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fifth=$(git rev-parse fifth) &&
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echo "$fifth branch 'fifth' of ." |
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git fmt-merge-msg >msg &&
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ancestor=$(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_i18ngrep [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_i18ngrep [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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|
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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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|
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merge_conflict_resolve &&
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|
|
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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 &&
|
|
|
|
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
|