root/test-revision-walking.c

DEFINITIONS

1. print_commit
2. run_revision_walk
3. main

/*
 * test-revision-walking.c: test revision walking API.
 *
 * (C) 2012 Heiko Voigt <hvoigt@hvoigt.net>
 *
 * This code is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"

static void print_commit(struct commit *commit)
{
        struct strbuf sb = STRBUF_INIT;
        struct pretty_print_context ctx = {0};
        ctx.date_mode.type = DATE_NORMAL;
        format_commit_message(commit, " %m %s", &sb, &ctx);
        printf("%s\n", sb.buf);
        strbuf_release(&sb);
}

static int run_revision_walk(void)
{
        struct rev_info rev;
        struct commit *commit;
        const char *argv[] = {NULL, "--all", NULL};
        int argc = ARRAY_SIZE(argv) - 1;
        int got_revision = 0;

        init_revisions(&rev, NULL);
        setup_revisions(argc, argv, &rev, NULL);
        if (prepare_revision_walk(&rev))
                die("revision walk setup failed");

        while ((commit = get_revision(&rev)) != NULL) {
                print_commit(commit);
                got_revision = 1;
        }

        reset_revision_walk();
        return got_revision;
}

int main(int argc, char **argv)
{
        if (argc < 2)
                return 1;

        if (!strcmp(argv[1], "run-twice")) {
                printf("1st\n");
                if (!run_revision_walk())
                        return 1;
                printf("2nd\n");
                if (!run_revision_walk())
                        return 1;

                return 0;
        }

        fprintf(stderr, "check usage\n");
        return 1;
}