diff options
Diffstat (limited to 'builtin-reset.c')
| -rw-r--r-- | builtin-reset.c | 51 |
1 files changed, 37 insertions, 14 deletions
diff --git a/builtin-reset.c b/builtin-reset.c index e4418bc..a174a31 100644 --- a/builtin-reset.c +++ b/builtin-reset.c @@ -18,10 +18,13 @@ #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>]", - "git reset [--mixed] <commit> [--] <paths>...", + "git reset [-q] <commit> [--] <paths>...", + "git reset --patch [<commit>] [--] [<paths>...]", NULL }; @@ -54,27 +57,44 @@ 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) @@ -202,6 +222,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix) struct commit *commit; char *reflog_action, msg[1024]; const struct option options[] = { + OPT__QUIET(&quiet), OPT_SET_INT(0, "mixed", &reset_type, "reset HEAD and index", MIXED), OPT_SET_INT(0, "soft", &reset_type, "reset only HEAD", SOFT), @@ -209,8 +230,6 @@ int cmd_reset(int argc, const char **argv, const char *prefix) "reset HEAD, index and working tree", HARD), OPT_SET_INT(0, "merge", &reset_type, "reset HEAD, index and working tree", MERGE), - OPT_BOOLEAN('q', NULL, &quiet, - "disable showing new HEAD in hard reset and progress message"), OPT_BOOLEAN('p', "patch", &patch_mode, "select hunks interactively"), OPT_END() }; @@ -289,6 +308,10 @@ int cmd_reset(int argc, const char **argv, const char *prefix) if (reset_type == HARD || reset_type == MERGE) setup_work_tree(); + if (reset_type == MIXED && is_bare_repository()) + die("%s reset is not allowed in a bare repository", + reset_type_names[reset_type]); + /* Soft reset does not touch the index file nor the working tree * at all, but requires them in a good order. Other resets reset * the index file to the tree object we are switching to. */ |