зеркало из https://github.com/microsoft/git.git
rebase: move `reset_head()` into a better spot
Over the next commits, we want to make use of it in `run_am()` (i.e. running the `--am` backend directly, without detouring to Unix shell script code) which in turn will be called from `run_specific_rebase()`. So let's move it before that latter function. This commit is best viewed using --color-moved. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin
Junio C Hamano
Родитель
b21ebb671b
Коммит
c5233708c5
238
builtin/rebase.c
238
builtin/rebase.c
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@ -333,6 +333,125 @@ static void add_var(struct strbuf *buf, const char *name, const char *value)
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}
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}
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#define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION"
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#define RESET_HEAD_DETACH (1<<0)
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#define RESET_HEAD_HARD (1<<1)
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static int reset_head(struct object_id *oid, const char *action,
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const char *switch_to_branch, unsigned flags,
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const char *reflog_orig_head, const char *reflog_head)
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{
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unsigned detach_head = flags & RESET_HEAD_DETACH;
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unsigned reset_hard = flags & RESET_HEAD_HARD;
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struct object_id head_oid;
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struct tree_desc desc[2] = { { NULL }, { NULL } };
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struct lock_file lock = LOCK_INIT;
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struct unpack_trees_options unpack_tree_opts;
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struct tree *tree;
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const char *reflog_action;
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struct strbuf msg = STRBUF_INIT;
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size_t prefix_len;
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struct object_id *orig = NULL, oid_orig,
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*old_orig = NULL, oid_old_orig;
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int ret = 0, nr = 0;
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if (switch_to_branch && !starts_with(switch_to_branch, "refs/"))
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BUG("Not a fully qualified branch: '%s'", switch_to_branch);
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if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) {
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ret = -1;
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goto leave_reset_head;
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}
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if ((!oid || !reset_hard) && get_oid("HEAD", &head_oid)) {
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ret = error(_("could not determine HEAD revision"));
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goto leave_reset_head;
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}
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if (!oid)
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oid = &head_oid;
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memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts));
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setup_unpack_trees_porcelain(&unpack_tree_opts, action);
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unpack_tree_opts.head_idx = 1;
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unpack_tree_opts.src_index = the_repository->index;
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unpack_tree_opts.dst_index = the_repository->index;
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unpack_tree_opts.fn = reset_hard ? oneway_merge : twoway_merge;
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unpack_tree_opts.update = 1;
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unpack_tree_opts.merge = 1;
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if (!detach_head)
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unpack_tree_opts.reset = 1;
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if (read_index_unmerged(the_repository->index) < 0) {
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ret = error(_("could not read index"));
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goto leave_reset_head;
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}
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if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) {
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ret = error(_("failed to find tree of %s"),
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oid_to_hex(&head_oid));
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goto leave_reset_head;
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}
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if (!fill_tree_descriptor(&desc[nr++], oid)) {
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ret = error(_("failed to find tree of %s"), oid_to_hex(oid));
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goto leave_reset_head;
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}
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if (unpack_trees(nr, desc, &unpack_tree_opts)) {
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ret = -1;
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goto leave_reset_head;
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}
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tree = parse_tree_indirect(oid);
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prime_cache_tree(the_repository->index, tree);
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if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) {
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ret = error(_("could not write index"));
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goto leave_reset_head;
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}
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reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
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strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase");
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prefix_len = msg.len;
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if (!get_oid("ORIG_HEAD", &oid_old_orig))
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old_orig = &oid_old_orig;
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if (!get_oid("HEAD", &oid_orig)) {
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orig = &oid_orig;
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if (!reflog_orig_head) {
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strbuf_addstr(&msg, "updating ORIG_HEAD");
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reflog_orig_head = msg.buf;
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}
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update_ref(reflog_orig_head, "ORIG_HEAD", orig, old_orig, 0,
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UPDATE_REFS_MSG_ON_ERR);
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} else if (old_orig)
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delete_ref(NULL, "ORIG_HEAD", old_orig, 0);
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if (!reflog_head) {
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strbuf_setlen(&msg, prefix_len);
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strbuf_addstr(&msg, "updating HEAD");
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reflog_head = msg.buf;
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}
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if (!switch_to_branch)
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ret = update_ref(reflog_head, "HEAD", oid, orig,
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detach_head ? REF_NO_DEREF : 0,
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UPDATE_REFS_MSG_ON_ERR);
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else {
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ret = create_symref("HEAD", switch_to_branch, msg.buf);
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if (!ret)
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ret = update_ref(reflog_head, "HEAD", oid, NULL, 0,
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UPDATE_REFS_MSG_ON_ERR);
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}
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leave_reset_head:
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strbuf_release(&msg);
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rollback_lock_file(&lock);
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while (nr)
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free((void *)desc[--nr].buffer);
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return ret;
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}
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static const char *resolvemsg =
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N_("Resolve all conflicts manually, mark them as resolved with\n"
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"\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n"
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@ -526,125 +645,6 @@ finished_rebase:
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return status ? -1 : 0;
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}
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#define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION"
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#define RESET_HEAD_DETACH (1<<0)
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#define RESET_HEAD_HARD (1<<1)
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static int reset_head(struct object_id *oid, const char *action,
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const char *switch_to_branch, unsigned flags,
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const char *reflog_orig_head, const char *reflog_head)
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{
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unsigned detach_head = flags & RESET_HEAD_DETACH;
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unsigned reset_hard = flags & RESET_HEAD_HARD;
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struct object_id head_oid;
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struct tree_desc desc[2] = { { NULL }, { NULL } };
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struct lock_file lock = LOCK_INIT;
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struct unpack_trees_options unpack_tree_opts;
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struct tree *tree;
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const char *reflog_action;
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struct strbuf msg = STRBUF_INIT;
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size_t prefix_len;
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struct object_id *orig = NULL, oid_orig,
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*old_orig = NULL, oid_old_orig;
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int ret = 0, nr = 0;
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if (switch_to_branch && !starts_with(switch_to_branch, "refs/"))
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BUG("Not a fully qualified branch: '%s'", switch_to_branch);
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if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) {
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ret = -1;
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goto leave_reset_head;
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}
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if ((!oid || !reset_hard) && get_oid("HEAD", &head_oid)) {
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ret = error(_("could not determine HEAD revision"));
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goto leave_reset_head;
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}
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if (!oid)
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oid = &head_oid;
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memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts));
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setup_unpack_trees_porcelain(&unpack_tree_opts, action);
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unpack_tree_opts.head_idx = 1;
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unpack_tree_opts.src_index = the_repository->index;
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unpack_tree_opts.dst_index = the_repository->index;
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unpack_tree_opts.fn = reset_hard ? oneway_merge : twoway_merge;
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unpack_tree_opts.update = 1;
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unpack_tree_opts.merge = 1;
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if (!detach_head)
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unpack_tree_opts.reset = 1;
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if (read_index_unmerged(the_repository->index) < 0) {
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ret = error(_("could not read index"));
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goto leave_reset_head;
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}
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if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) {
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ret = error(_("failed to find tree of %s"),
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oid_to_hex(&head_oid));
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goto leave_reset_head;
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}
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if (!fill_tree_descriptor(&desc[nr++], oid)) {
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ret = error(_("failed to find tree of %s"), oid_to_hex(oid));
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goto leave_reset_head;
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}
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if (unpack_trees(nr, desc, &unpack_tree_opts)) {
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ret = -1;
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goto leave_reset_head;
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}
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tree = parse_tree_indirect(oid);
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prime_cache_tree(the_repository->index, tree);
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if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) {
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ret = error(_("could not write index"));
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goto leave_reset_head;
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}
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reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
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strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase");
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prefix_len = msg.len;
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if (!get_oid("ORIG_HEAD", &oid_old_orig))
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old_orig = &oid_old_orig;
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if (!get_oid("HEAD", &oid_orig)) {
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orig = &oid_orig;
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if (!reflog_orig_head) {
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strbuf_addstr(&msg, "updating ORIG_HEAD");
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reflog_orig_head = msg.buf;
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}
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update_ref(reflog_orig_head, "ORIG_HEAD", orig, old_orig, 0,
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UPDATE_REFS_MSG_ON_ERR);
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} else if (old_orig)
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delete_ref(NULL, "ORIG_HEAD", old_orig, 0);
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if (!reflog_head) {
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strbuf_setlen(&msg, prefix_len);
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strbuf_addstr(&msg, "updating HEAD");
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reflog_head = msg.buf;
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}
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if (!switch_to_branch)
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ret = update_ref(reflog_head, "HEAD", oid, orig,
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detach_head ? REF_NO_DEREF : 0,
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UPDATE_REFS_MSG_ON_ERR);
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else {
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ret = create_symref("HEAD", switch_to_branch, msg.buf);
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if (!ret)
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ret = update_ref(reflog_head, "HEAD", oid, NULL, 0,
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UPDATE_REFS_MSG_ON_ERR);
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}
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leave_reset_head:
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strbuf_release(&msg);
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rollback_lock_file(&lock);
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while (nr)
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free((void *)desc[--nr].buffer);
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return ret;
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}
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static int rebase_config(const char *var, const char *value, void *data)
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{
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struct rebase_options *opts = data;
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