diff options
Diffstat (limited to 'third_party/git/reflog-walk.c')
| -rw-r--r-- | third_party/git/reflog-walk.c | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/third_party/git/reflog-walk.c b/third_party/git/reflog-walk.c deleted file mode 100644 index 3a25b27d8f8d..000000000000 --- a/third_party/git/reflog-walk.c +++ /dev/null @@ -1,348 +0,0 @@ -#include "cache.h" -#include "commit.h" -#include "refs.h" -#include "diff.h" -#include "revision.h" -#include "string-list.h" -#include "reflog-walk.h" - -struct complete_reflogs { - char *ref; - const char *short_ref; - struct reflog_info { - struct object_id ooid, noid; - char *email; - timestamp_t timestamp; - int tz; - char *message; - } *items; - int nr, alloc; -}; - -static int read_one_reflog(struct object_id *ooid, struct object_id *noid, - const char *email, timestamp_t timestamp, int tz, - const char *message, void *cb_data) -{ - struct complete_reflogs *array = cb_data; - struct reflog_info *item; - - ALLOC_GROW(array->items, array->nr + 1, array->alloc); - item = array->items + array->nr; - oidcpy(&item->ooid, ooid); - oidcpy(&item->noid, noid); - item->email = xstrdup(email); - item->timestamp = timestamp; - item->tz = tz; - item->message = xstrdup(message); - array->nr++; - return 0; -} - -static void free_complete_reflog(struct complete_reflogs *array) -{ - int i; - - if (!array) - return; - - for (i = 0; i < array->nr; i++) { - free(array->items[i].email); - free(array->items[i].message); - } - free(array->items); - free(array->ref); - free(array); -} - -static struct complete_reflogs *read_complete_reflog(const char *ref) -{ - struct complete_reflogs *reflogs = - xcalloc(1, sizeof(struct complete_reflogs)); - reflogs->ref = xstrdup(ref); - for_each_reflog_ent(ref, read_one_reflog, reflogs); - if (reflogs->nr == 0) { - const char *name; - void *name_to_free; - name = name_to_free = resolve_refdup(ref, RESOLVE_REF_READING, - NULL, NULL); - if (name) { - for_each_reflog_ent(name, read_one_reflog, reflogs); - free(name_to_free); - } - } - if (reflogs->nr == 0) { - char *refname = xstrfmt("refs/%s", ref); - for_each_reflog_ent(refname, read_one_reflog, reflogs); - if (reflogs->nr == 0) { - free(refname); - refname = xstrfmt("refs/heads/%s", ref); - for_each_reflog_ent(refname, read_one_reflog, reflogs); - } - free(refname); - } - return reflogs; -} - -static int get_reflog_recno_by_time(struct complete_reflogs *array, - timestamp_t timestamp) -{ - int i; - for (i = array->nr - 1; i >= 0; i--) - if (timestamp >= array->items[i].timestamp) - return i; - return -1; -} - -struct commit_reflog { - int recno; - enum selector_type { - SELECTOR_NONE, - SELECTOR_INDEX, - SELECTOR_DATE - } selector; - struct complete_reflogs *reflogs; -}; - -struct reflog_walk_info { - struct commit_reflog **logs; - size_t nr, alloc; - struct string_list complete_reflogs; - struct commit_reflog *last_commit_reflog; -}; - -void init_reflog_walk(struct reflog_walk_info **info) -{ - *info = xcalloc(1, sizeof(struct reflog_walk_info)); - (*info)->complete_reflogs.strdup_strings = 1; -} - -int add_reflog_for_walk(struct reflog_walk_info *info, - struct commit *commit, const char *name) -{ - timestamp_t timestamp = 0; - int recno = -1; - struct string_list_item *item; - struct complete_reflogs *reflogs; - char *branch, *at = strchr(name, '@'); - struct commit_reflog *commit_reflog; - enum selector_type selector = SELECTOR_NONE; - - if (commit->object.flags & UNINTERESTING) - die("cannot walk reflogs for %s", name); - - branch = xstrdup(name); - if (at && at[1] == '{') { - char *ep; - branch[at - name] = '\0'; - recno = strtoul(at + 2, &ep, 10); - if (*ep != '}') { - recno = -1; - timestamp = approxidate(at + 2); - selector = SELECTOR_DATE; - } - else - selector = SELECTOR_INDEX; - } else - recno = 0; - - item = string_list_lookup(&info->complete_reflogs, branch); - if (item) - reflogs = item->util; - else { - if (*branch == '\0') { - free(branch); - branch = resolve_refdup("HEAD", 0, NULL, NULL); - if (!branch) - die("no current branch"); - - } - reflogs = read_complete_reflog(branch); - if (!reflogs || reflogs->nr == 0) { - struct object_id oid; - char *b; - int ret = dwim_log(branch, strlen(branch), - &oid, &b); - if (ret > 1) - free(b); - else if (ret == 1) { - free_complete_reflog(reflogs); - free(branch); - branch = b; - reflogs = read_complete_reflog(branch); - } - } - if (!reflogs || reflogs->nr == 0) { - free_complete_reflog(reflogs); - free(branch); - return -1; - } - string_list_insert(&info->complete_reflogs, branch)->util - = reflogs; - } - free(branch); - - commit_reflog = xcalloc(1, sizeof(struct commit_reflog)); - if (recno < 0) { - commit_reflog->recno = get_reflog_recno_by_time(reflogs, timestamp); - if (commit_reflog->recno < 0) { - free(commit_reflog); - return -1; - } - } else - commit_reflog->recno = reflogs->nr - recno - 1; - commit_reflog->selector = selector; - commit_reflog->reflogs = reflogs; - - ALLOC_GROW(info->logs, info->nr + 1, info->alloc); - info->logs[info->nr++] = commit_reflog; - - return 0; -} - -void get_reflog_selector(struct strbuf *sb, - struct reflog_walk_info *reflog_info, - const struct date_mode *dmode, int force_date, - int shorten) -{ - struct commit_reflog *commit_reflog = reflog_info->last_commit_reflog; - struct reflog_info *info; - const char *printed_ref; - - if (!commit_reflog) - return; - - if (shorten) { - if (!commit_reflog->reflogs->short_ref) - commit_reflog->reflogs->short_ref - = shorten_unambiguous_ref(commit_reflog->reflogs->ref, 0); - printed_ref = commit_reflog->reflogs->short_ref; - } else { - printed_ref = commit_reflog->reflogs->ref; - } - - strbuf_addf(sb, "%s@{", printed_ref); - if (commit_reflog->selector == SELECTOR_DATE || - (commit_reflog->selector == SELECTOR_NONE && force_date)) { - info = &commit_reflog->reflogs->items[commit_reflog->recno+1]; - strbuf_addstr(sb, show_date(info->timestamp, info->tz, dmode)); - } else { - strbuf_addf(sb, "%d", commit_reflog->reflogs->nr - - 2 - commit_reflog->recno); - } - - strbuf_addch(sb, '}'); -} - -void get_reflog_message(struct strbuf *sb, - struct reflog_walk_info *reflog_info) -{ - struct commit_reflog *commit_reflog = reflog_info->last_commit_reflog; - struct reflog_info *info; - size_t len; - - if (!commit_reflog) - return; - - info = &commit_reflog->reflogs->items[commit_reflog->recno+1]; - len = strlen(info->message); - if (len > 0) - len--; /* strip away trailing newline */ - strbuf_add(sb, info->message, len); -} - -const char *get_reflog_ident(struct reflog_walk_info *reflog_info) -{ - struct commit_reflog *commit_reflog = reflog_info->last_commit_reflog; - struct reflog_info *info; - - if (!commit_reflog) - return NULL; - - info = &commit_reflog->reflogs->items[commit_reflog->recno+1]; - return info->email; -} - -timestamp_t get_reflog_timestamp(struct reflog_walk_info *reflog_info) -{ - struct commit_reflog *commit_reflog = reflog_info->last_commit_reflog; - struct reflog_info *info; - - if (!commit_reflog) - return 0; - - info = &commit_reflog->reflogs->items[commit_reflog->recno+1]; - return info->timestamp; -} - -void show_reflog_message(struct reflog_walk_info *reflog_info, int oneline, - const struct date_mode *dmode, int force_date) -{ - if (reflog_info && reflog_info->last_commit_reflog) { - struct commit_reflog *commit_reflog = reflog_info->last_commit_reflog; - struct reflog_info *info; - struct strbuf selector = STRBUF_INIT; - - info = &commit_reflog->reflogs->items[commit_reflog->recno+1]; - get_reflog_selector(&selector, reflog_info, dmode, force_date, 0); - if (oneline) { - printf("%s: %s", selector.buf, info->message); - } - else { - printf("Reflog: %s (%s)\nReflog message: %s", - selector.buf, info->email, info->message); - } - - strbuf_release(&selector); - } -} - -int reflog_walk_empty(struct reflog_walk_info *info) -{ - return !info || !info->nr; -} - -static struct commit *next_reflog_commit(struct commit_reflog *log) -{ - for (; log->recno >= 0; log->recno--) { - struct reflog_info *entry = &log->reflogs->items[log->recno]; - struct object *obj = parse_object(the_repository, - &entry->noid); - - if (obj && obj->type == OBJ_COMMIT) - return (struct commit *)obj; - } - return NULL; -} - -static timestamp_t log_timestamp(struct commit_reflog *log) -{ - return log->reflogs->items[log->recno].timestamp; -} - -struct commit *next_reflog_entry(struct reflog_walk_info *walk) -{ - struct commit_reflog *best = NULL; - struct commit *best_commit = NULL; - size_t i; - - for (i = 0; i < walk->nr; i++) { - struct commit_reflog *log = walk->logs[i]; - struct commit *commit = next_reflog_commit(log); - - if (!commit) - continue; - - if (!best || log_timestamp(log) > log_timestamp(best)) { - best = log; - best_commit = commit; - } - } - - if (best) { - best->recno--; - walk->last_commit_reflog = best; - return best_commit; - } - - return NULL; -} |