Merge branch 'jk/fsck-exit-code-fix' into maint

"git fsck" failed to report that it found corrupt objects via its
exit status in some cases.

* jk/fsck-exit-code-fix:
fsck: return non-zero status on missing ref tips
fsck: exit with non-zero status upon error from fsck_obj()

diff --git a/builtin/fsck.c b/builtin/fsck.c
index d42a27da89d8d5693c6335cf4e2123d41c030580..0928a98a71ca2b764d4fbb59976f1c4bdc421dde 100644 (file)
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -388,7 +388,8 @@ static void fsck_sha1_list(void)
                unsigned char *sha1 = entry->sha1;
 
                sha1_list.entry[i] = NULL;
-               fsck_sha1(sha1);
+               if (fsck_sha1(sha1))
+                       errors_found |= ERROR_OBJECT;
                free(entry);
        }
        sha1_list.nr = 0;
@@ -488,6 +489,7 @@ static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int f
        obj = parse_object(sha1);
        if (!obj) {
                error("%s: invalid sha1 pointer %s", refname, sha1_to_hex(sha1));
+               errors_found |= ERROR_REACHABLE;
                /* We'll continue with the rest despite the error.. */
                return 0;
        }
@@ -504,7 +506,7 @@ static void get_default_heads(void)
 {
        if (head_points_at && !is_null_sha1(head_sha1))
                fsck_handle_ref("HEAD", head_sha1, 0, NULL);
-       for_each_ref(fsck_handle_ref, NULL);
+       for_each_rawref(fsck_handle_ref, NULL);
        if (include_reflogs)
                for_each_reflog(fsck_handle_reflog, NULL);
 

diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index 8c739c96135fe942d7e76236eb34429be93937a8..b52397afd3352b873c9c7fabb91eb850aaf0db3b 100755 (executable)
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -69,7 +69,7 @@ test_expect_success 'object with bad sha1' '
        git update-ref refs/heads/bogus $cmt &&
        test_when_finished "git update-ref -d refs/heads/bogus" &&
 
-       test_might_fail git fsck 2>out &&
+       test_must_fail git fsck 2>out &&
        cat out &&
        grep "$sha.*corrupt" out
 '
@@ -101,7 +101,7 @@ test_expect_success 'email with embedded > is not okay' '
        test_when_finished "remove_object $new" &&
        git update-ref refs/heads/bogus "$new" &&
        test_when_finished "git update-ref -d refs/heads/bogus" &&
-       git fsck 2>out &&
+       test_must_fail git fsck 2>out &&
        cat out &&
        grep "error in commit $new" out
 '
@@ -113,7 +113,7 @@ test_expect_success 'missing < email delimiter is reported nicely' '
        test_when_finished "remove_object $new" &&
        git update-ref refs/heads/bogus "$new" &&
        test_when_finished "git update-ref -d refs/heads/bogus" &&
-       git fsck 2>out &&
+       test_must_fail git fsck 2>out &&
        cat out &&
        grep "error in commit $new.* - bad name" out
 '
@@ -125,7 +125,7 @@ test_expect_success 'missing email is reported nicely' '
        test_when_finished "remove_object $new" &&
        git update-ref refs/heads/bogus "$new" &&
        test_when_finished "git update-ref -d refs/heads/bogus" &&
-       git fsck 2>out &&
+       test_must_fail git fsck 2>out &&
        cat out &&
        grep "error in commit $new.* - missing email" out
 '
@@ -137,7 +137,7 @@ test_expect_success '> in name is reported' '
        test_when_finished "remove_object $new" &&
        git update-ref refs/heads/bogus "$new" &&
        test_when_finished "git update-ref -d refs/heads/bogus" &&
-       git fsck 2>out &&
+       test_must_fail git fsck 2>out &&
        cat out &&
        grep "error in commit $new" out
 '
@@ -151,11 +151,31 @@ test_expect_success 'integer overflow in timestamps is reported' '
        test_when_finished "remove_object $new" &&
        git update-ref refs/heads/bogus "$new" &&
        test_when_finished "git update-ref -d refs/heads/bogus" &&
-       git fsck 2>out &&
+       test_must_fail git fsck 2>out &&
        cat out &&
        grep "error in commit $new.*integer overflow" out
 '
 
+test_expect_success 'malformatted tree object' '
+       test_when_finished "git update-ref -d refs/tags/wrong" &&
+       test_when_finished "remove_object \$T" &&
+       T=$(
+               GIT_INDEX_FILE=test-index &&
+               export GIT_INDEX_FILE &&
+               rm -f test-index &&
+               >x &&
+               git add x &&
+               T=$(git write-tree) &&
+               (
+                       git cat-file tree $T &&
+                       git cat-file tree $T
+               ) |
+               git hash-object -w -t tree --stdin
+       ) &&
+       test_must_fail git fsck 2>out &&
+       grep "error in tree .*contains duplicate file entries" out
+'
+
 test_expect_success 'tag pointing to nonexistent' '
        cat >invalid-tag <<-\EOF &&
        object ffffffffffffffffffffffffffffffffffffffff
@@ -282,4 +302,60 @@ test_expect_success 'fsck notices ".git" in trees' '
        )
 '
 
+# create a static test repo which is broken by omitting
+# one particular object ($1, which is looked up via rev-parse
+# in the new repository).
+create_repo_missing () {
+       rm -rf missing &&
+       git init missing &&
+       (
+               cd missing &&
+               git commit -m one --allow-empty &&
+               mkdir subdir &&
+               echo content >subdir/file &&
+               git add subdir/file &&
+               git commit -m two &&
+               unrelated=$(echo unrelated | git hash-object --stdin -w) &&
+               git tag -m foo tag $unrelated &&
+               sha1=$(git rev-parse --verify "$1") &&
+               path=$(echo $sha1 | sed 's|..|&/|') &&
+               rm .git/objects/$path
+       )
+}
+
+test_expect_success 'fsck notices missing blob' '
+       create_repo_missing HEAD:subdir/file &&
+       test_must_fail git -C missing fsck
+'
+
+test_expect_success 'fsck notices missing subtree' '
+       create_repo_missing HEAD:subdir &&
+       test_must_fail git -C missing fsck
+'
+
+test_expect_success 'fsck notices missing root tree' '
+       create_repo_missing HEAD^{tree} &&
+       test_must_fail git -C missing fsck
+'
+
+test_expect_success 'fsck notices missing parent' '
+       create_repo_missing HEAD^ &&
+       test_must_fail git -C missing fsck
+'
+
+test_expect_success 'fsck notices missing tagged object' '
+       create_repo_missing tag^{blob} &&
+       test_must_fail git -C missing fsck
+'
+
+test_expect_success 'fsck notices ref pointing to missing commit' '
+       create_repo_missing HEAD &&
+       test_must_fail git -C missing fsck
+'
+
+test_expect_success 'fsck notices ref pointing to missing tag' '
+       create_repo_missing tag &&
+       test_must_fail git -C missing fsck
+'
+
 test_done

diff --git a/t/t4212-log-corrupt.sh b/t/t4212-log-corrupt.sh
index 58b792bf20a1cd64435fca0b3d24b2417303f819..67bd8ec020e7919a37c581d3ea7c6c12e70f4276 100755 (executable)
--- a/t/t4212-log-corrupt.sh
+++ b/t/t4212-log-corrupt.sh
@@ -14,7 +14,7 @@ test_expect_success 'setup' '
 '
 
 test_expect_success 'fsck notices broken commit' '
-       git fsck 2>actual &&
+       test_must_fail git fsck 2>actual &&
        test_i18ngrep invalid.author actual
 '