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/*
* Copyright (c) 2023 Mark Jamsek <mark@jamsek.dev>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Commit keywords to specify references in the repository
* (cf. svn keywords, fossil special tags, hg revsets).
*/
#define GOT_KEYWORD_BASE "base" /* work tree base commit */
#define GOT_KEYWORD_HEAD "head" /* worktree/repo HEAD commit */
/*
* Parse a commit id string for keywords and/or lineage modifiers "(+|-)[N]".
* Valid keywords are "base" or "head" and must be prefixed with a ":".
* Lineage modifiers must be prefixed with a ":" and may suffix keywords or
* reference names:
* :keyword:(+/-)N Nth generation descendant/antecedent of keyword
* :keyword:(+/-) 1st generation descendant/antecedent of keyword
* :keyword commit pointed to by keyword
* ref:(+/-)[N] Nth generation descendant/antecedent of ref
* If a match is found, return the corresponding commit id string in the
* char ** out parameter, of which the caller takes ownership and must free.
* Otherwise it will contain NULL, indicating a match was not found.
* If the modifier is greater than the number of ancestors/descendants, the id
* string of the oldest/most recent commit (i.e., ROOT/HEAD) will be returned.
*/
const struct got_error *got_keyword_to_idstr(char **, const char *,
struct got_repository *, struct got_worktree *);
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