git/t/t4200-rerere.sh

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#!/bin/sh
#
# Copyright (c) 2006 Johannes E. Schindelin
#
test_description='git-rerere
'
. ./test-lib.sh
cat > a1 << EOF
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.
EOF
git add a1
git commit -q -a -m initial
git checkout -b first
cat >> a1 << EOF
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;
EOF
git commit -q -a -m first
git checkout -b second master
git show first:a1 | sed 's/To die, t/To die! T/' > a1
git commit -q -a -m second
# activate rerere
mkdir .git/rr-cache
test_expect_failure 'conflicting merge' 'git pull . first'
sha1=4f58849a60b4f969a2848966b6d02893b783e8fb
rr=.git/rr-cache/$sha1
test_expect_success 'recorded preimage' "grep ======= $rr/preimage"
test_expect_success 'no postimage or thisimage yet' \
"test ! -f $rr/postimage -a ! -f $rr/thisimage"
git show first:a1 > a1
cat > expect << EOF
--- a/a1
+++ b/a1
@@ -6,11 +6,7 @@
The heart-ache and the thousand natural shocks
That flesh is heir to, 'tis a consummation
Devoutly to be wish'd.
-<<<<<<<
-To die! To sleep;
-=======
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,
EOF
git rerere diff > out
test_expect_success 'rerere diff' 'diff -u expect out'
cat > expect << EOF
a1
EOF
git rerere status > out
test_expect_success 'rerere status' 'diff -u 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"
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_failure 'another conflicting merge' 'git pull . first'
git show first:a1 | sed 's/To die: t/To die! T/' > expect
test_expect_success 'rerere kicked in' "! grep ======= a1"
test_expect_success 'rerere prefers first change' 'diff -u a1 expect'
rm $rr/postimage
echo "$sha1 a1" | tr '\012' '\0' > .git/rr-cache/MERGE_RR
test_expect_success 'rerere clear' 'git rerere clear'
test_expect_success 'clear removed the directory' "test ! -d $rr"
mkdir $rr
echo Hello > $rr/preimage
echo World > $rr/postimage
sha2=4000000000000000000000000000000000000000
rr2=.git/rr-cache/$sha2
mkdir $rr2
echo Hello > $rr2/preimage
case "$(date -d @11111111 +%s 2>/dev/null)" in
11111111)
# 'date' must be able to take arbitrary input with @11111111 notation.
# for this test to succeed. We should fix this part using more
# portable script someday.
now=$(date +%s)
almost_15_days_ago=$(($now+60-15*86400))
just_over_15_days_ago=$(($now-1-15*86400))
almost_60_days_ago=$(($now+60-60*86400))
just_over_60_days_ago=$(($now-1-60*86400))
predate1="$(date -d "@$almost_60_days_ago" +%Y%m%d%H%M.%S)"
predate2="$(date -d "@$almost_15_days_ago" +%Y%m%d%H%M.%S)"
postdate1="$(date -d "@$just_over_60_days_ago" +%Y%m%d%H%M.%S)"
postdate2="$(date -d "@$just_over_15_days_ago" +%Y%m%d%H%M.%S)"
touch -m -t "$predate1" $rr/preimage
touch -m -t "$predate2" $rr2/preimage
test_expect_success 'garbage collection (part1)' 'git rerere gc'
test_expect_success 'young records still live' \
"test -f $rr/preimage -a -f $rr2/preimage"
touch -m -t "$postdate1" $rr/preimage
touch -m -t "$postdate2" $rr2/preimage
test_expect_success 'garbage collection (part2)' 'git rerere gc'
test_expect_success 'old records rest in peace' \
"test ! -f $rr/preimage -a ! -f $rr2/preimage"
;;
esac
test_done