diff options
Diffstat (limited to 'reset.c')
| -rw-r--r-- | reset.c | 110 |
1 files changed, 62 insertions, 48 deletions
@@ -8,25 +8,75 @@ #include "tree.h" #include "unpack-trees.h" +static int update_refs(const struct object_id *oid, const char *switch_to_branch, + const struct object_id *head, const char *reflog_head, + const char *reflog_orig_head, + const char *default_reflog_action, unsigned flags) +{ + unsigned detach_head = flags & RESET_HEAD_DETACH; + unsigned run_hook = flags & RESET_HEAD_RUN_POST_CHECKOUT_HOOK; + unsigned update_orig_head = flags & RESET_ORIG_HEAD; + struct object_id *old_orig = NULL, oid_old_orig; + struct strbuf msg = STRBUF_INIT; + const char *reflog_action; + size_t prefix_len; + int ret; + + reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); + strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : default_reflog_action); + prefix_len = msg.len; + + if (update_orig_head) { + if (!get_oid("ORIG_HEAD", &oid_old_orig)) + old_orig = &oid_old_orig; + if (head) { + if (!reflog_orig_head) { + strbuf_addstr(&msg, "updating ORIG_HEAD"); + reflog_orig_head = msg.buf; + } + update_ref(reflog_orig_head, "ORIG_HEAD", head, + old_orig, 0, UPDATE_REFS_MSG_ON_ERR); + } else if (old_orig) + delete_ref(NULL, "ORIG_HEAD", old_orig, 0); + } + + if (!reflog_head) { + strbuf_setlen(&msg, prefix_len); + strbuf_addstr(&msg, "updating HEAD"); + reflog_head = msg.buf; + } + if (!switch_to_branch) + ret = update_ref(reflog_head, "HEAD", oid, head, + detach_head ? REF_NO_DEREF : 0, + UPDATE_REFS_MSG_ON_ERR); + else { + ret = update_ref(reflog_head, switch_to_branch, oid, + NULL, 0, UPDATE_REFS_MSG_ON_ERR); + if (!ret) + ret = create_symref("HEAD", switch_to_branch, + reflog_head); + } + if (!ret && run_hook) + run_hook_le(NULL, "post-checkout", + oid_to_hex(head ? head : null_oid()), + oid_to_hex(oid), "1", NULL); + strbuf_release(&msg); + return ret; +} + int reset_head(struct repository *r, struct object_id *oid, const char *switch_to_branch, unsigned flags, const char *reflog_orig_head, const char *reflog_head, const char *default_reflog_action) { - unsigned detach_head = flags & RESET_HEAD_DETACH; unsigned reset_hard = flags & RESET_HEAD_HARD; - unsigned run_hook = flags & RESET_HEAD_RUN_POST_CHECKOUT_HOOK; unsigned refs_only = flags & RESET_HEAD_REFS_ONLY; - unsigned update_orig_head = flags & RESET_ORIG_HEAD; struct object_id *head = NULL, head_oid; struct tree_desc desc[2] = { { NULL }, { NULL } }; struct lock_file lock = LOCK_INIT; struct unpack_trees_options unpack_tree_opts = { 0 }; struct tree *tree; - const char *action, *reflog_action; - struct strbuf msg = STRBUF_INIT; - size_t prefix_len; - struct object_id *old_orig = NULL, oid_old_orig; + const char *action; int ret = 0, nr = 0; if (switch_to_branch && !starts_with(switch_to_branch, "refs/")) @@ -48,7 +98,9 @@ int reset_head(struct repository *r, struct object_id *oid, oid = &head_oid; if (refs_only) - goto reset_head_refs; + return update_refs(oid, switch_to_branch, head, reflog_head, + reflog_orig_head, default_reflog_action, + flags); action = reset_hard ? "reset" : "checkout"; setup_unpack_trees_porcelain(&unpack_tree_opts, action); @@ -92,48 +144,10 @@ int reset_head(struct repository *r, struct object_id *oid, goto leave_reset_head; } -reset_head_refs: - reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); - strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : default_reflog_action); - prefix_len = msg.len; - - if (update_orig_head) { - if (!get_oid("ORIG_HEAD", &oid_old_orig)) - old_orig = &oid_old_orig; - if (head) { - if (!reflog_orig_head) { - strbuf_addstr(&msg, "updating ORIG_HEAD"); - reflog_orig_head = msg.buf; - } - update_ref(reflog_orig_head, "ORIG_HEAD", head, - old_orig, 0, UPDATE_REFS_MSG_ON_ERR); - } else if (old_orig) - delete_ref(NULL, "ORIG_HEAD", old_orig, 0); - } - - if (!reflog_head) { - strbuf_setlen(&msg, prefix_len); - strbuf_addstr(&msg, "updating HEAD"); - reflog_head = msg.buf; - } - if (!switch_to_branch) - ret = update_ref(reflog_head, "HEAD", oid, head, - detach_head ? REF_NO_DEREF : 0, - UPDATE_REFS_MSG_ON_ERR); - else { - ret = update_ref(reflog_head, switch_to_branch, oid, - NULL, 0, UPDATE_REFS_MSG_ON_ERR); - if (!ret) - ret = create_symref("HEAD", switch_to_branch, - reflog_head); - } - if (!ret && run_hook) - run_hook_le(NULL, "post-checkout", - oid_to_hex(head ? head : null_oid()), - oid_to_hex(oid), "1", NULL); + ret = update_refs(oid, switch_to_branch, head, reflog_head, + reflog_orig_head, default_reflog_action, flags); leave_reset_head: - strbuf_release(&msg); rollback_lock_file(&lock); clear_unpack_trees_porcelain(&unpack_tree_opts); while (nr) |