use a LRU eviction policy for the delta base cache

diff --git a/t/t4200-rerere.sh b/t/t4200-rerere.sh
index 91be272ac4fd905722d57cae2b7690a42739411a..e081b32aff393c4ea6d2e12e3d69d2217d6ef378 100755 (executable)
--- a/t/t4200-rerere.sh
+++ b/t/t4200-rerere.sh
@@ -70,7 +70,7 @@ EOF
 
 git rerere diff > out
 
-test_expect_success 'rerere diff' 'diff -u expect out'
+test_expect_success 'rerere diff' 'git diff expect out'
 
 cat > expect << EOF
 a1
@@ -78,7 +78,7 @@ EOF
 
 git rerere status > out
 
-test_expect_success 'rerere status' 'diff -u expect out'
+test_expect_success 'rerere status' 'git diff expect out'
 
 test_expect_success 'commit succeeds' \
        "git commit -q -a -m 'prefer first over second'"
@@ -94,7 +94,7 @@ 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'
+test_expect_success 'rerere prefers first change' 'git diff a1 expect'
 
 rm $rr/postimage
 echo "$sha1    a1" | tr '\012' '\0' > .git/rr-cache/MERGE_RR
@@ -112,42 +112,26 @@ rr2=.git/rr-cache/$sha2
 mkdir $rr2
 echo Hello > $rr2/preimage
 
-case "$(date -d @11111111 +%s 2>/dev/null)" in
-[1-9]*)
-       # it is a recent GNU date. good.
-       now=$(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)"
-       ;;
-*)
-       # it is not GNU date. oh, well.
-       predate1="$(date +%Y%m%d%H%M.%S)"
-       predate2="$(date +%Y%m%d%H%M.%S)"
-       postdate1='200610010000.00'
-       postdate2='200612010000.00'
-esac
-
-touch -m -t "$predate1" $rr/preimage
-touch -m -t "$predate2" $rr2/preimage
+almost_15_days_ago=$((60-15*86400))
+just_over_15_days_ago=$((-1-15*86400))
+almost_60_days_ago=$((60-60*86400))
+just_over_60_days_ago=$((-1-60*86400))
+
+test-chmtime =$almost_60_days_ago $rr/preimage
+test-chmtime =$almost_15_days_ago $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"
+       "test -f $rr/preimage && test -f $rr2/preimage"
 
-touch -m -t "$postdate1" $rr/preimage
-touch -m -t "$postdate2" $rr2/preimage
+test-chmtime =$just_over_60_days_ago $rr/preimage
+test-chmtime =$just_over_15_days_ago $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"
+       "test ! -f $rr/preimage && test ! -f $rr2/preimage"
 
 test_done