diff options
Diffstat (limited to 'builtin-reset.c')
| -rw-r--r-- | builtin-reset.c | 88 |
1 files changed, 51 insertions, 37 deletions
diff --git a/builtin-reset.c b/builtin-reset.c index 99d5c082a6..7ee811f0b8 100644 --- a/builtin-reset.c +++ b/builtin-reset.c @@ -18,7 +18,7 @@ #include "tree.h" static const char builtin_reset_usage[] = -"git-reset [--mixed | --soft | --hard] [<commit-ish>] [ [--] <paths>...]"; +"git-reset [--mixed | --soft | --hard] [-q] [<commit-ish>] [ [--] <paths>...]"; static char *args_to_str(const char **argv) { @@ -46,26 +46,14 @@ static inline int is_merge(void) static int unmerged_files(void) { - char b; - ssize_t len; - struct child_process cmd; - const char *argv_ls_files[] = {"ls-files", "--unmerged", NULL}; - - memset(&cmd, 0, sizeof(cmd)); - cmd.argv = argv_ls_files; - cmd.git_cmd = 1; - cmd.out = -1; - - if (start_command(&cmd)) - die("Could not run sub-command: git ls-files"); - - len = xread(cmd.out, &b, 1); - if (len < 0) - die("Could not read output from git ls-files: %s", - strerror(errno)); - finish_command(&cmd); - - return len; + int i; + read_cache(); + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_cache[i]; + if (ce_stage(ce)) + return 1; + } + return 0; } static int reset_index_file(const unsigned char *sha1, int is_hard_reset) @@ -107,19 +95,33 @@ static void print_new_head_line(struct commit *commit) printf("\n"); } -static int update_index_refresh(void) +static int update_index_refresh(int fd, struct lock_file *index_lock) { - const char *argv_update_index[] = {"update-index", "--refresh", NULL}; - return run_command_v_opt(argv_update_index, RUN_GIT_CMD); + int result; + + if (!index_lock) { + index_lock = xcalloc(1, sizeof(struct lock_file)); + fd = hold_locked_index(index_lock, 1); + } + + if (read_cache() < 0) + return error("Could not read index"); + result = refresh_cache(0) ? 1 : 0; + if (write_cache(fd, active_cache, active_nr) || + commit_locked_index(index_lock)) + return error ("Could not refresh index"); + return result; } static void update_index_from_diff(struct diff_queue_struct *q, struct diff_options *opt, void *data) { int i; + int *discard_flag = data; /* do_diff_cache() mangled the index */ discard_cache(); + *discard_flag = 1; read_cache(); for (i = 0; i < q->nr; i++) { @@ -138,24 +140,29 @@ static void update_index_from_diff(struct diff_queue_struct *q, static int read_from_tree(const char *prefix, const char **argv, unsigned char *tree_sha1) { - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); - int index_fd; + struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); + int index_fd, index_was_discarded = 0; struct diff_options opt; memset(&opt, 0, sizeof(opt)); diff_tree_setup_paths(get_pathspec(prefix, (const char **)argv), &opt); opt.output_format = DIFF_FORMAT_CALLBACK; opt.format_callback = update_index_from_diff; + opt.format_callback_data = &index_was_discarded; index_fd = hold_locked_index(lock, 1); + index_was_discarded = 0; read_cache(); if (do_diff_cache(tree_sha1, &opt)) return 1; diffcore_std(&opt); diff_flush(&opt); - return write_cache(index_fd, active_cache, active_nr) || - close(index_fd) || - commit_locked_index(lock); + diff_tree_release_paths(&opt); + + if (!index_was_discarded) + /* The index is still clobbered from do_diff_cache() */ + discard_cache(); + return update_index_refresh(index_fd, lock); } static void prepend_reflog_action(const char *action, char *buf, size_t size) @@ -169,11 +176,11 @@ static void prepend_reflog_action(const char *action, char *buf, size_t size) } enum reset_type { MIXED, SOFT, HARD, NONE }; -static char *reset_type_names[] = { "mixed", "soft", "hard", NULL }; +static const char *reset_type_names[] = { "mixed", "soft", "hard", NULL }; int cmd_reset(int argc, const char **argv, const char *prefix) { - int i = 1, reset_type = NONE, update_ref_status = 0; + int i = 1, reset_type = NONE, update_ref_status = 0, quiet = 0; const char *rev = "HEAD"; unsigned char sha1[20], *orig = NULL, sha1_orig[20], *old_orig = NULL, sha1_old_orig[20]; @@ -185,7 +192,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix) reflog_action = args_to_str(argv); setenv("GIT_REFLOG_ACTION", reflog_action, 0); - if (i < argc) { + while (i < argc) { if (!strcmp(argv[i], "--mixed")) { reset_type = MIXED; i++; @@ -198,6 +205,12 @@ int cmd_reset(int argc, const char **argv, const char *prefix) reset_type = HARD; i++; } + else if (!strcmp(argv[i], "-q")) { + quiet = 1; + i++; + } + else + break; } if (i < argc && argv[i][0] != '-') @@ -225,13 +238,14 @@ int cmd_reset(int argc, const char **argv, const char *prefix) else if (reset_type != NONE) die("Cannot do %s reset with paths.", reset_type_names[reset_type]); - if (read_from_tree(prefix, argv + i, sha1)) - return 1; - return update_index_refresh() ? 1 : 0; + return read_from_tree(prefix, argv + i, sha1); } if (reset_type == NONE) reset_type = MIXED; /* by default */ + if (reset_type == HARD && is_bare_repository()) + die("hard reset makes no sense in a bare repository"); + /* 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. */ @@ -258,13 +272,13 @@ int cmd_reset(int argc, const char **argv, const char *prefix) switch (reset_type) { case HARD: - if (!update_ref_status) + if (!update_ref_status && !quiet) print_new_head_line(commit); break; case SOFT: /* Nothing else to do. */ break; case MIXED: /* Report what has not been updated. */ - update_index_refresh(); + update_index_refresh(0, NULL); break; } |