mirror of
https://git.proxmox.com/git/libgit2
synced 2025-11-04 08:32:14 +00:00
122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
/*
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* libgit2 "rev-list" example - shows how to transform a rev-spec into a list
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* of commit ids
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*
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* Written by the libgit2 contributors
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*
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* To the extent possible under law, the author(s) have dedicated all copyright
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* and related and neighboring rights to this software to the public domain
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* worldwide. This software is distributed without any warranty.
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*
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* You should have received a copy of the CC0 Public Domain Dedication along
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* with this software. If not, see
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* <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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#include "common.h"
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static int revwalk_parseopts(git_repository *repo, git_revwalk *walk, int nopts, char **opts);
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int main (int argc, char **argv)
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{
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git_repository *repo;
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git_revwalk *walk;
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git_oid oid;
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char buf[GIT_OID_HEXSZ+1];
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git_threads_init();
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check_lg2(git_repository_open_ext(&repo, ".", 0, NULL), "opening repository", NULL);
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check_lg2(git_revwalk_new(&walk, repo), "allocating revwalk", NULL);
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check_lg2(revwalk_parseopts(repo, walk, argc-1, argv+1), "parsing options", NULL);
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while (!git_revwalk_next(&oid, walk)) {
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git_oid_fmt(buf, &oid);
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buf[GIT_OID_HEXSZ] = '\0';
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printf("%s\n", buf);
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}
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git_threads_shutdown();
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return 0;
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}
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static int push_commit(git_revwalk *walk, const git_oid *oid, int hide)
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{
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if (hide)
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return git_revwalk_hide(walk, oid);
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else
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return git_revwalk_push(walk, oid);
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}
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static int push_spec(git_repository *repo, git_revwalk *walk, const char *spec, int hide)
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{
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int error;
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git_object *obj;
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if ((error = git_revparse_single(&obj, repo, spec)) < 0)
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return error;
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error = push_commit(walk, git_object_id(obj), hide);
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git_object_free(obj);
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return error;
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}
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static int push_range(git_repository *repo, git_revwalk *walk, const char *range, int hide)
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{
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git_revspec revspec;
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int error = 0;
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if ((error = git_revparse(&revspec, repo, range)))
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return error;
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if (revspec.flags & GIT_REVPARSE_MERGE_BASE) {
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/* TODO: support "<commit>...<commit>" */
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return GIT_EINVALIDSPEC;
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}
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if ((error = push_commit(walk, git_object_id(revspec.from), !hide)))
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goto out;
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error = push_commit(walk, git_object_id(revspec.to), hide);
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out:
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git_object_free(revspec.from);
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git_object_free(revspec.to);
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return error;
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}
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static int revwalk_parseopts(git_repository *repo, git_revwalk *walk, int nopts, char **opts)
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{
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int hide, i, error;
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unsigned int sorting = GIT_SORT_NONE;
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hide = 0;
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for (i = 0; i < nopts; i++) {
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if (!strcmp(opts[i], "--topo-order")) {
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sorting = GIT_SORT_TOPOLOGICAL | (sorting & GIT_SORT_REVERSE);
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git_revwalk_sorting(walk, sorting);
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} else if (!strcmp(opts[i], "--date-order")) {
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sorting = GIT_SORT_TIME | (sorting & GIT_SORT_REVERSE);
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git_revwalk_sorting(walk, sorting);
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} else if (!strcmp(opts[i], "--reverse")) {
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sorting = (sorting & ~GIT_SORT_REVERSE)
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| ((sorting & GIT_SORT_REVERSE) ? 0 : GIT_SORT_REVERSE);
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git_revwalk_sorting(walk, sorting);
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} else if (!strcmp(opts[i], "--not")) {
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hide = !hide;
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} else if (opts[i][0] == '^') {
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if ((error = push_spec(repo, walk, opts[i] + 1, !hide)))
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return error;
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} else if (strstr(opts[i], "..")) {
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if ((error = push_range(repo, walk, opts[i], hide)))
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return error;
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} else {
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if ((error = push_spec(repo, walk, opts[i], hide)))
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return error;
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}
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}
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return 0;
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}
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