Function mcp_test_git

tests/test_mcp.c:261–337

}

static int mcp_test_git(const char *root, const char *const *arguments) {
    char empty_config[CBM_SZ_4K];
    int config_length =
        snprintf(empty_config, sizeof(empty_config), "%s/.cbm-empty-gitconfig", root);
    if (config_length <= 0 || (size_t)config_length >= sizeof(empty_config)) {
        return -1;
    }
    FILE *config = cbm_fopen(empty_config, "wb");
    if (!config) {
        return -1;
    }
    if (fclose(config) != 0) {
        return -1;
    }

    mcp_test_env_backup_t backups[] = {
        {.name = "GIT_CONFIG_GLOBAL"},     {.name = "GIT_CONFIG_SYSTEM"},
        {.name = "GIT_CONFIG_NOSYSTEM"},   {.name = "GIT_CONFIG_COUNT"},
        {.name = "GIT_CONFIG_PARAMETERS"},
    };
    bool snapshot_ok = true;
    for (size_t index = 0; index < sizeof(backups) / sizeof(backups[0]); index++) {
        const char *value = getenv(backups[index].name);
        backups[index].present = value != NULL;
        backups[index].value = value ? strdup(value) : NULL;
        snapshot_ok = snapshot_ok && (!value || backups[index].value);
    }
    if (!snapshot_ok) {
        for (size_t index = 0; index < sizeof(backups) / sizeof(backups[0]); index++) {
            free(backups[index].value);
        }
        return -1;
    }
    bool environment_ok = cbm_setenv("GIT_CONFIG_GLOBAL", empty_config, 1) == 0 &&
                          cbm_setenv("GIT_CONFIG_SYSTEM", empty_config, 1) == 0 &&
                          cbm_setenv("GIT_CONFIG_NOSYSTEM", "1", 1) == 0 &&
                          cbm_setenv("GIT_CONFIG_COUNT", "0", 1) == 0 &&
                          cbm_unsetenv("GIT_CONFIG_PARAMETERS") == 0;
    if (!environment_ok) {
        mcp_test_restore_env(backups, sizeof(backups) / sizeof(backups[0]));
        return -1;
    }

    const char *git = "git";
#ifdef _WIN32
    char git_executable[CBM_SZ_4K];
    const char *resolved = cbm_find_cli("git", cbm_get_home_dir());
    int resolved_length =
        resolved ? snprintf(git_executable, sizeof(git_executable), "%s", resolved) : -1;
    if (resolved_length <= 0 || (size_t)resolved_length >= sizeof(git_executable)) {
        mcp_test_restore_env(backups, sizeof(backups) / sizeof(backups[0]));
        return -1;
    }
    git = git_executable;
#endif
    const char *argv[24] = {git, "-C", root};
    size_t index = 3;
    while (arguments && *arguments && index + 1 < sizeof(argv) / sizeof(argv[0])) {