diff options
| -rw-r--r-- | Documentation/git-reset.txt | 2 | ||||
| -rw-r--r-- | builtin-reset.c | 41 | ||||
| -rwxr-xr-x | t/t7110-reset-merge.sh | 12 |
3 files changed, 38 insertions, 17 deletions
diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt index 2198c8ebd6..cf2433d52c 100644 --- a/Documentation/git-reset.txt +++ b/Documentation/git-reset.txt @@ -122,7 +122,7 @@ entries: X U A B --soft (disallowed) --mixed X B B --hard B B B - --merge (disallowed) + --merge X B B working index HEAD target working index HEAD ---------------------------------------------------- diff --git a/builtin-reset.c b/builtin-reset.c index 3180c2b582..2c880a7e7a 100644 --- a/builtin-reset.c +++ b/builtin-reset.c @@ -18,6 +18,8 @@ #include "tree.h" #include "branch.h" #include "parse-options.h" +#include "unpack-trees.h" +#include "cache-tree.h" static const char * const git_reset_usage[] = { "git reset [--mixed | --soft | --hard | --merge] [-q] [<commit>]", @@ -54,27 +56,44 @@ static inline int is_merge(void) static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet) { - int i = 0; - const char *args[6]; + int nr = 1; + int newfd; + struct tree_desc desc[2]; + struct unpack_trees_options opts; + struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); - args[i++] = "read-tree"; + memset(&opts, 0, sizeof(opts)); + opts.head_idx = 1; + opts.src_index = &the_index; + opts.dst_index = &the_index; + opts.fn = oneway_merge; + opts.merge = 1; if (!quiet) - args[i++] = "-v"; + opts.verbose_update = 1; switch (reset_type) { case MERGE: - args[i++] = "-u"; - args[i++] = "-m"; + opts.update = 1; break; case HARD: - args[i++] = "-u"; + opts.update = 1; /* fallthrough */ default: - args[i++] = "--reset"; + opts.reset = 1; } - args[i++] = sha1_to_hex(sha1); - args[i] = NULL; - return run_command_v_opt(args, RUN_GIT_CMD); + newfd = hold_locked_index(lock, 1); + + read_cache_unmerged(); + + if (!fill_tree_descriptor(desc + nr - 1, sha1)) + return error("Failed to find tree of %s.", sha1_to_hex(sha1)); + if (unpack_trees(nr, desc, &opts)) + return -1; + if (write_cache(newfd, active_cache, active_nr) || + commit_locked_index(lock)) + return error("Could not write new index file."); + + return 0; } static void print_new_head_line(struct commit *commit) diff --git a/t/t7110-reset-merge.sh b/t/t7110-reset-merge.sh index 4c46083bec..ff2875c00b 100755 --- a/t/t7110-reset-merge.sh +++ b/t/t7110-reset-merge.sh @@ -135,12 +135,14 @@ test_expect_success 'setup 2 different branches' ' # # working index HEAD target working index HEAD # ---------------------------------------------------- -# file1: X U B C --merge (disallowed) -test_expect_success '"reset --merge HEAD^" fails with pending merge' ' +# file1: X U B C --merge X C C +test_expect_success '"reset --merge HEAD^" is ok with pending merge' ' test_must_fail git merge branch1 && - test_must_fail git reset --merge HEAD^ && - test "$(git rev-parse HEAD)" = "$(git rev-parse third)" && - test -n "$(git diff --cached)" + cat file1 >orig_file1 && + git reset --merge HEAD^ && + test "$(git rev-parse HEAD)" = "$(git rev-parse second)" && + test -z "$(git diff --cached)" && + test_cmp file1 orig_file1 ' # The next test will test the following: |