blame: default to HEAD in a bare repo when no start commit is given

diff --git a/t/t4200-rerere.sh b/t/t4200-rerere.sh
index d97d2bebc9850c8ba96a8263ed081fced2ecc153..55b7750ade1c5fd225f830bbbfcb42938abcbe37 100755 (executable)
--- a/t/t4200-rerere.sh
+++ b/t/t4200-rerere.sh
@@ -166,7 +166,7 @@ test_expect_success 'first postimage wins' '
        git commit -q -a -m "prefer first over second" &&
        test -f $rr/postimage &&
 
-       oldmtimepost=$(test-chmtime -v -60 $rr/postimage | cut -f 1) &&
+       oldmtimepost=$(test-tool chmtime --get -60 $rr/postimage) &&
 
        git checkout -b third master &&
        git show second^:a1 | sed "s/To die: t/To die! T/" >a1 &&
@@ -179,7 +179,7 @@ test_expect_success 'first postimage wins' '
 '
 
 test_expect_success 'rerere updates postimage timestamp' '
-       newmtimepost=$(test-chmtime -v +0 $rr/postimage | cut -f 1) &&
+       newmtimepost=$(test-tool chmtime --get $rr/postimage) &&
        test $oldmtimepost -lt $newmtimepost
 '
 
@@ -220,9 +220,9 @@ test_expect_success 'set up for garbage collection tests' '
        almost_60_days_ago=$((60-60*86400)) &&
        just_over_60_days_ago=$((-1-60*86400)) &&
 
-       test-chmtime =$just_over_60_days_ago $rr/preimage &&
-       test-chmtime =$almost_60_days_ago $rr/postimage &&
-       test-chmtime =$almost_15_days_ago $rr2/preimage
+       test-tool chmtime =$just_over_60_days_ago $rr/preimage &&
+       test-tool chmtime =$almost_60_days_ago $rr/postimage &&
+       test-tool chmtime =$almost_15_days_ago $rr2/preimage
 '
 
 test_expect_success 'gc preserves young or recently used records' '
@@ -232,8 +232,8 @@ test_expect_success 'gc preserves young or recently used records' '
 '
 
 test_expect_success 'old records rest in peace' '
-       test-chmtime =$just_over_60_days_ago $rr/postimage &&
-       test-chmtime =$just_over_15_days_ago $rr2/preimage &&
+       test-tool chmtime =$just_over_60_days_ago $rr/postimage &&
+       test-tool chmtime =$just_over_15_days_ago $rr2/preimage &&
        git rerere gc &&
        ! test -f $rr/preimage &&
        ! test -f $rr2/preimage
@@ -243,14 +243,14 @@ rerere_gc_custom_expiry_test () {
        five_days="$1" right_now="$2"
        test_expect_success "rerere gc with custom expiry ($five_days, $right_now)" '
                rm -fr .git/rr-cache &&
-               rr=.git/rr-cache/$_z40 &&
+               rr=.git/rr-cache/$ZERO_OID &&
                mkdir -p "$rr" &&
                >"$rr/preimage" &&
                >"$rr/postimage" &&
 
                two_days_ago=$((-2*86400)) &&
-               test-chmtime =$two_days_ago "$rr/preimage" &&
-               test-chmtime =$two_days_ago "$rr/postimage" &&
+               test-tool chmtime =$two_days_ago "$rr/preimage" &&
+               test-tool chmtime =$two_days_ago "$rr/postimage" &&
 
                find .git/rr-cache -type f | sort >original &&
 
@@ -267,8 +267,7 @@ rerere_gc_custom_expiry_test () {
                git -c "gc.rerereresolved=$right_now" \
                    -c "gc.rerereunresolved=$right_now" rerere gc &&
                find .git/rr-cache -type f | sort >actual &&
-               >expect &&
-               test_cmp expect actual
+               test_must_be_empty actual
        '
 }
 
@@ -512,7 +511,7 @@ test_expect_success 'multiple identical conflicts' '
        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 &&
+       test-tool chmtime -172800 $(find .git/rr-cache/ -type f) &&
 
        # Unresolved entries have not expired yet
        git -c gc.rerereresolved=5 -c gc.rerereunresolved=5 rerere gc &&
@@ -536,9 +535,8 @@ test_expect_success 'multiple identical conflicts' '
 
        # We resolved file1 and file2
        git rerere &&
-       >expect &&
        git rerere remaining >actual &&
-       test_cmp expect actual &&
+       test_must_be_empty actual &&
 
        # We must have recorded both of them
        count_pre_post 2 2 &&
@@ -548,9 +546,8 @@ test_expect_success 'multiple identical conflicts' '
        test_must_fail git merge six.1 &&
        git rerere &&
 
-       >expect &&
        git rerere remaining >actual &&
-       test_cmp expect actual &&
+       test_must_be_empty actual &&
 
        concat_insert short 6.1 6.2 >file1.expect &&
        concat_insert long 6.1 6.2 >file2.expect &&
@@ -568,7 +565,7 @@ test_expect_success 'multiple identical conflicts' '
        git rerere &&
 
        # Pretend that the resolutions are old again
-       find .git/rr-cache/ -type f | xargs test-chmtime -172800 &&
+       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 &&
@@ -580,4 +577,98 @@ test_expect_success 'multiple identical conflicts' '
        count_pre_post 0 0
 '
 
+test_expect_success 'rerere with unexpected conflict markers does not crash' '
+       git reset --hard &&
+
+       git checkout -b branch-1 master &&
+       echo "bar" >test &&
+       git add test &&
+       git commit -q -m two &&
+
+       git reset --hard &&
+       git checkout -b branch-2 master &&
+       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 master &&
+       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 master &&
+       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 master &&
+               git mv original A &&
+               git commit -m "rename to A" &&
+
+               git checkout -b B master &&
+               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_done