void test_config_read__path(void)
{
git_config *cfg;
git_buf path = GIT_BUF_INIT;
git_buf old_path = GIT_BUF_INIT;
git_buf home_path = GIT_BUF_INIT;
git_buf expected_path = GIT_BUF_INIT;
cl_git_pass(p_mkdir("fakehome", 0777));
cl_git_pass(git_path_prettify(&home_path, "fakehome", NULL));
cl_git_pass(git_libgit2_opts(GIT_OPT_GET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, &old_path));
cl_git_pass(git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, home_path.ptr));
cl_git_mkfile("./testconfig", "[some]\n path = ~/somefile");
cl_git_pass(git_path_join_unrooted(&expected_path, "somefile", home_path.ptr, NULL));
cl_git_pass(git_config_open_ondisk(&cfg, "./testconfig"));
cl_git_pass(git_config_get_path(&path, cfg, "some.path"));
cl_assert_equal_s(expected_path.ptr, path.ptr);
git_buf_free(&path);
cl_git_mkfile("./testconfig", "[some]\n path = ~/");
cl_git_pass(git_path_join_unrooted(&expected_path, "", home_path.ptr, NULL));
cl_git_pass(git_config_get_path(&path, cfg, "some.path"));
cl_assert_equal_s(expected_path.ptr, path.ptr);
git_buf_free(&path);
cl_git_mkfile("./testconfig", "[some]\n path = ~");
cl_git_pass(git_buf_sets(&expected_path, home_path.ptr));
cl_git_pass(git_config_get_path(&path, cfg, "some.path"));
cl_assert_equal_s(expected_path.ptr, path.ptr);
git_buf_free(&path);
cl_git_mkfile("./testconfig", "[some]\n path = ~user/foo");
cl_git_fail(git_config_get_path(&path, cfg, "some.path"));
cl_git_pass(git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, old_path.ptr));
git_buf_free(&old_path);
git_buf_free(&home_path);
git_buf_free(&expected_path);
git_config_free(cfg);
}
int git_path_find_dir(git_buf *dir, const char *path, const char *base)
{
int error = git_path_join_unrooted(dir, path, base, NULL);
if (!error) {
char buf[GIT_PATH_MAX];
if (p_realpath(dir->ptr, buf) != NULL)
error = git_buf_sets(dir, buf);
}
/* call dirname if this is not a directory */
if (!error) /* && git_path_isdir(dir->ptr) == false) */
error = (git_path_dirname_r(dir, dir->ptr) < 0) ? -1 : 0;
if (!error)
error = git_path_to_dir(dir);
return error;
}
static void check_tree_entry(
git_iterator *i,
const char *oid,
const char *oid_p,
const char *oid_pp,
const char *oid_ppp)
{
const git_index_entry *ie;
const git_tree_entry *te;
const git_tree *tree;
git_buf path = GIT_BUF_INIT;
cl_git_pass(git_iterator_current_tree_entry(&te, i));
cl_assert(te);
cl_assert(git_oid_streq(te->oid, oid) == 0);
cl_git_pass(git_iterator_current(&ie, i));
cl_git_pass(git_buf_sets(&path, ie->path));
if (oid_p) {
git_buf_rtruncate_at_char(&path, '/');
cl_git_pass(git_iterator_current_parent_tree(&tree, i, path.ptr));
cl_assert(tree);
cl_assert(git_oid_streq(git_tree_id(tree), oid_p) == 0);
}
if (oid_pp) {
git_buf_rtruncate_at_char(&path, '/');
cl_git_pass(git_iterator_current_parent_tree(&tree, i, path.ptr));
cl_assert(tree);
cl_assert(git_oid_streq(git_tree_id(tree), oid_pp) == 0);
}
if (oid_ppp) {
git_buf_rtruncate_at_char(&path, '/');
cl_git_pass(git_iterator_current_parent_tree(&tree, i, path.ptr));
cl_assert(tree);
cl_assert(git_oid_streq(git_tree_id(tree), oid_ppp) == 0);
}
git_buf_free(&path);
}
/* test detach/attach data */
void test_core_buffer__7(void)
{
const char *fun = "This is fun";
git_buf a = GIT_BUF_INIT;
char *b = NULL;
git_buf_sets(&a, "foo");
cl_assert(git_buf_oom(&a) == 0);
cl_assert_equal_s("foo", git_buf_cstr(&a));
b = git_buf_detach(&a);
cl_assert_equal_s("foo", b);
cl_assert_equal_s("", a.ptr);
git__free(b);
b = git_buf_detach(&a);
cl_assert_equal_s(NULL, b);
cl_assert_equal_s("", a.ptr);
git_buf_free(&a);
b = git__strdup(fun);
git_buf_attach(&a, b, 0);
cl_assert_equal_s(fun, a.ptr);
cl_assert(a.size == strlen(fun));
cl_assert(a.asize == strlen(fun) + 1);
git_buf_free(&a);
b = git__strdup(fun);
git_buf_attach(&a, b, strlen(fun) + 1);
cl_assert_equal_s(fun, a.ptr);
cl_assert(a.size == strlen(fun));
cl_assert(a.asize == strlen(fun) + 1);
git_buf_free(&a);
}
int git_path_prettify(git_buf *path_out, const char *path, const char *base)
{
int error = GIT_SUCCESS;
char buf[GIT_PATH_MAX];
git_buf_clear(path_out);
/* construct path if needed */
if (base != NULL && git_path_root(path) < 0) {
if ((error = git_buf_joinpath(path_out, base, path)) < GIT_SUCCESS)
return error;
path = path_out->ptr;
}
if (path == NULL || p_realpath(path, buf) == NULL)
error = GIT_EOSERR;
else
error = git_buf_sets(path_out, buf);
return error;
}
int cl_git_remove_placeholders(const char *directory_path, const char *filename)
{
int error;
remove_data data;
git_buf buffer = GIT_BUF_INIT;
if (git_path_isdir(directory_path) == false)
return -1;
if (git_buf_sets(&buffer, directory_path) < 0)
return -1;
data.filename = filename;
data.filename_len = strlen(filename);
error = remove_placeholders_recurs(&data, &buffer);
git_buf_free(&buffer);
return error;
}
static void
check_buf_append(
const char* data_a,
const char* data_b,
const char* expected_data,
size_t expected_size,
size_t expected_asize)
{
git_buf tgt = GIT_BUF_INIT;
git_buf_sets(&tgt, data_a);
cl_assert(git_buf_oom(&tgt) == 0);
git_buf_puts(&tgt, data_b);
cl_assert(git_buf_oom(&tgt) == 0);
cl_assert_equal_s(expected_data, git_buf_cstr(&tgt));
cl_assert(tgt.size == expected_size);
if (expected_asize > 0)
cl_assert(tgt.asize == expected_asize);
git_buf_free(&tgt);
}
static int reference_matches_remote_head(
const char *reference_name,
void *payload)
{
struct head_info *head_info = (struct head_info *)payload;
git_oid oid;
/* TODO: Should we guard against references
* which name doesn't start with refs/heads/ ?
*/
/* Stop looking if we've already found a match */
if (git_buf_len(&head_info->branchname) > 0)
return 0;
if (git_reference_name_to_oid(
&oid,
head_info->repo,
reference_name) < 0) {
/* TODO: How to handle not found references?
*/
return -1;
}
if (git_oid_cmp(&head_info->remote_head_oid, &oid) == 0) {
/* Determine the local reference name from the remote tracking one */
if (git_refspec_transform_l(
&head_info->branchname,
head_info->refspec,
reference_name) < 0)
return -1;
if (git_buf_sets(
&head_info->branchname,
git_buf_cstr(&head_info->branchname) + strlen(GIT_REFS_HEADS_DIR)) < 0)
return -1;
}
return 0;
}
static void
check_buf_append_abc(
const char* buf_a,
const char* buf_b,
const char* buf_c,
const char* expected_ab,
const char* expected_abc,
const char* expected_abca,
const char* expected_abcab,
const char* expected_abcabc)
{
git_buf buf = GIT_BUF_INIT;
git_buf_sets(&buf, buf_a);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(buf_a, git_buf_cstr(&buf));
git_buf_puts(&buf, buf_b);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(expected_ab, git_buf_cstr(&buf));
git_buf_puts(&buf, buf_c);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(expected_abc, git_buf_cstr(&buf));
git_buf_puts(&buf, buf_a);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(expected_abca, git_buf_cstr(&buf));
git_buf_puts(&buf, buf_b);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(expected_abcab, git_buf_cstr(&buf));
git_buf_puts(&buf, buf_c);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(expected_abcabc, git_buf_cstr(&buf));
git_buf_free(&buf);
}
/***********************************************************
*
* PACKED BACKEND PUBLIC API
*
* Implement the git_odb_backend API calls
*
***********************************************************/
static int pack_backend__refresh(git_odb_backend *backend_)
{
int error;
struct stat st;
git_buf path = GIT_BUF_INIT;
struct pack_backend *backend = (struct pack_backend *)backend_;
if (backend->pack_folder == NULL)
return 0;
if (p_stat(backend->pack_folder, &st) < 0 || !S_ISDIR(st.st_mode))
return git_odb__error_notfound("failed to refresh packfiles", NULL);
git_buf_sets(&path, backend->pack_folder);
/* reload all packs */
error = git_path_direach(&path, 0, packfile_load__cb, backend);
git_buf_free(&path);
git_vector_sort(&backend->packs);
return error;
}
void test_core_buffer__rfind_variants(void)
{
git_buf a = GIT_BUF_INIT;
ssize_t len;
cl_git_pass(git_buf_sets(&a, "/this/is/it/"));
len = (ssize_t)git_buf_len(&a);
cl_assert(git_buf_rfind(&a, '/') == len - 1);
cl_assert(git_buf_rfind_next(&a, '/') == len - 4);
cl_assert(git_buf_rfind(&a, 'i') == len - 3);
cl_assert(git_buf_rfind_next(&a, 'i') == len - 3);
cl_assert(git_buf_rfind(&a, 'h') == 2);
cl_assert(git_buf_rfind_next(&a, 'h') == 2);
cl_assert(git_buf_rfind(&a, 'q') == -1);
cl_assert(git_buf_rfind_next(&a, 'q') == -1);
git_buf_free(&a);
}
void test_core_path__11_walkup(void)
{
git_buf p = GIT_BUF_INIT;
char *expect[] = {
"/a/b/c/d/e/", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
"/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
"/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
"/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
"/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", NULL,
"/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", NULL,
"this is a path", NULL,
"///a///b///c///d///e///", "///a///b///c///d///", "///a///b///c///", "///a///b///", "///a///", "///", NULL,
NULL
};
char *root[] = { NULL, NULL, "/", "", "/a/b", "/a/b/", NULL, NULL, NULL };
int i, j;
check_walkup_info info;
info.expect = expect;
for (i = 0, j = 0; expect[i] != NULL; i++, j++) {
git_buf_sets(&p, expect[i]);
info.expect_idx = i;
cl_git_pass(
git_path_walk_up(&p, root[j], check_one_walkup_step, &info)
);
cl_assert_equal_s(p.ptr, expect[i]);
/* skip to next run of expectations */
while (expect[i] != NULL) i++;
}
git_buf_free(&p);
}
int git_config_backend_from_string(git_config_backend **out, const char *cfg)
{
config_memory_backend *backend;
backend = git__calloc(1, sizeof(config_memory_backend));
GITERR_CHECK_ALLOC(backend);
if (git_config_entries_new(&backend->entries) < 0) {
git__free(backend);
return -1;
}
if (git_buf_sets(&backend->cfg, cfg) < 0) {
git_config_entries_free(backend->entries);
git__free(backend);
return -1;
}
backend->parent.version = GIT_CONFIG_BACKEND_VERSION;
backend->parent.readonly = 1;
backend->parent.open = config_memory_open;
backend->parent.get = config_memory_get;
backend->parent.set = config_memory_set;
backend->parent.set_multivar = config_memory_set_multivar;
backend->parent.del = config_memory_delete;
backend->parent.del_multivar = config_memory_delete_multivar;
backend->parent.iterator = config_memory_iterator;
backend->parent.lock = config_memory_lock;
backend->parent.unlock = config_memory_unlock;
backend->parent.snapshot = config_memory_snapshot;
backend->parent.free = config_memory_free;
*out = (git_config_backend *)backend;
return 0;
}
int git_path_join_unrooted(
git_buf *path_out, const char *path, const char *base, ssize_t *root_at)
{
int error, root;
assert(path && path_out);
root = git_path_root(path);
if (base != NULL && root < 0) {
error = git_buf_joinpath(path_out, base, path);
if (root_at)
*root_at = (ssize_t)strlen(base);
}
else {
error = git_buf_sets(path_out, path);
if (root_at)
*root_at = (root < 0) ? 0 : (ssize_t)root;
}
return error;
}
int git_futils_dirs_set(git_futils_dir_t which, const char *search_path)
{
const char *expand_path = NULL;
git_buf merge = GIT_BUF_INIT;
GITERR_CHECK_ERROR(git_futils_check_selector(which));
if (search_path != NULL)
expand_path = strstr(search_path, PATH_MAGIC);
/* init with default if not yet done and needed (ignoring error) */
if ((!search_path || expand_path) &&
!git_buf_len(&git_futils__dirs[which]))
git_futils__dir_guess[which](&git_futils__dirs[which]);
/* if $PATH is not referenced, then just set the path */
if (!expand_path)
return git_buf_sets(&git_futils__dirs[which], search_path);
/* otherwise set to join(before $PATH, old value, after $PATH) */
if (expand_path > search_path)
git_buf_set(&merge, search_path, expand_path - search_path);
if (git_buf_len(&git_futils__dirs[which]))
git_buf_join(&merge, GIT_PATH_LIST_SEPARATOR,
merge.ptr, git_futils__dirs[which].ptr);
expand_path += strlen(PATH_MAGIC);
if (*expand_path)
git_buf_join(&merge, GIT_PATH_LIST_SEPARATOR, merge.ptr, expand_path);
git_buf_swap(&git_futils__dirs[which], &merge);
git_buf_free(&merge);
return git_buf_oom(&git_futils__dirs[which]) ? -1 : 0;
}
int git_reset(
git_repository *repo,
git_object *target,
git_reset_t reset_type,
git_checkout_options *checkout_opts,
git_signature *signature,
const char *log_message)
{
git_object *commit = NULL;
git_index *index = NULL;
git_tree *tree = NULL;
int error = 0;
git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
git_buf log_message_buf = GIT_BUF_INIT;
assert(repo && target);
if (checkout_opts)
opts = *checkout_opts;
if (git_object_owner(target) != repo) {
giterr_set(GITERR_OBJECT,
"%s - The given target does not belong to this repository.", ERROR_MSG);
return -1;
}
if (reset_type != GIT_RESET_SOFT &&
(error = git_repository__ensure_not_bare(repo,
reset_type == GIT_RESET_MIXED ? "reset mixed" : "reset hard")) < 0)
return error;
if ((error = git_object_peel(&commit, target, GIT_OBJ_COMMIT)) < 0 ||
(error = git_repository_index(&index, repo)) < 0 ||
(error = git_commit_tree(&tree, (git_commit *)commit)) < 0)
goto cleanup;
if (reset_type == GIT_RESET_SOFT &&
(git_repository_state(repo) == GIT_REPOSITORY_STATE_MERGE ||
git_index_has_conflicts(index)))
{
giterr_set(GITERR_OBJECT, "%s (soft) in the middle of a merge.", ERROR_MSG);
error = GIT_EUNMERGED;
goto cleanup;
}
if (log_message)
git_buf_sets(&log_message_buf, log_message);
else
git_buf_sets(&log_message_buf, "reset: moving");
/* move HEAD to the new target */
if ((error = git_reference__update_terminal(repo, GIT_HEAD_FILE,
git_object_id(commit), signature, git_buf_cstr(&log_message_buf))) < 0)
goto cleanup;
if (reset_type == GIT_RESET_HARD) {
/* overwrite working directory with HEAD */
opts.checkout_strategy = GIT_CHECKOUT_FORCE | GIT_CHECKOUT_SKIP_UNMERGED;
if ((error = git_checkout_tree(repo, (git_object *)tree, &opts)) < 0)
goto cleanup;
}
if (reset_type > GIT_RESET_SOFT) {
/* reset index to the target content */
if ((error = git_index_read_tree(index, tree)) < 0 ||
(error = git_index_write(index)) < 0)
goto cleanup;
if ((error = git_repository_state_cleanup(repo)) < 0) {
giterr_set(GITERR_INDEX, "%s - failed to clean up merge data", ERROR_MSG);
goto cleanup;
}
}
cleanup:
git_object_free(commit);
git_index_free(index);
git_tree_free(tree);
git_buf_free(&log_message_buf);
return error;
}
void test_core_path__11_walkup(void)
{
git_buf p = GIT_BUF_INIT;
char *expect[] = {
/* 1 */ "/a/b/c/d/e/", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
/* 2 */ "/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
/* 3 */ "/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
/* 4 */ "/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", "/a/", "/", NULL,
/* 5 */ "/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", NULL,
/* 6 */ "/a/b/c/d/e", "/a/b/c/d/", "/a/b/c/", "/a/b/", NULL,
/* 7 */ "this_is_a_path", "", NULL,
/* 8 */ "this_is_a_path/", "", NULL,
/* 9 */ "///a///b///c///d///e///", "///a///b///c///d///", "///a///b///c///", "///a///b///", "///a///", "///", NULL,
/* 10 */ "a/b/c/", "a/b/", "a/", "", NULL,
/* 11 */ "a/b/c", "a/b/", "a/", "", NULL,
/* 12 */ "a/b/c/", "a/b/", "a/", NULL,
/* 13 */ "", NULL,
/* 14 */ "/", NULL,
/* 15 */ NULL
};
char *root[] = {
/* 1 */ NULL,
/* 2 */ NULL,
/* 3 */ "/",
/* 4 */ "",
/* 5 */ "/a/b",
/* 6 */ "/a/b/",
/* 7 */ NULL,
/* 8 */ NULL,
/* 9 */ NULL,
/* 10 */ NULL,
/* 11 */ NULL,
/* 12 */ "a/",
/* 13 */ NULL,
/* 14 */ NULL,
};
int i, j;
check_walkup_info info;
info.expect = expect;
info.cancel_after = -1;
for (i = 0, j = 0; expect[i] != NULL; i++, j++) {
git_buf_sets(&p, expect[i]);
info.expect_idx = i;
cl_git_pass(
git_path_walk_up(&p, root[j], check_one_walkup_step, &info)
);
cl_assert_equal_s(p.ptr, expect[i]);
cl_assert(expect[info.expect_idx] == NULL);
i = info.expect_idx;
}
git_buf_dispose(&p);
}
void test_core_path__15_resolve_relative(void)
{
git_buf buf = GIT_BUF_INIT;
assert_resolve_relative(&buf, "", "");
assert_resolve_relative(&buf, "", ".");
assert_resolve_relative(&buf, "", "./");
assert_resolve_relative(&buf, "..", "..");
assert_resolve_relative(&buf, "../", "../");
assert_resolve_relative(&buf, "..", "./..");
assert_resolve_relative(&buf, "../", "./../");
assert_resolve_relative(&buf, "../", "../.");
assert_resolve_relative(&buf, "../", ".././");
assert_resolve_relative(&buf, "../..", "../..");
assert_resolve_relative(&buf, "../../", "../../");
assert_resolve_relative(&buf, "/", "/");
assert_resolve_relative(&buf, "/", "/.");
assert_resolve_relative(&buf, "", "a/..");
assert_resolve_relative(&buf, "", "a/../");
assert_resolve_relative(&buf, "", "a/../.");
assert_resolve_relative(&buf, "/a", "/a");
assert_resolve_relative(&buf, "/a/", "/a/.");
assert_resolve_relative(&buf, "/", "/a/../");
assert_resolve_relative(&buf, "/", "/a/../.");
assert_resolve_relative(&buf, "/", "/a/.././");
assert_resolve_relative(&buf, "a", "a");
assert_resolve_relative(&buf, "a/", "a/");
assert_resolve_relative(&buf, "a/", "a/.");
assert_resolve_relative(&buf, "a/", "a/./");
assert_resolve_relative(&buf, "a/b", "a//b");
assert_resolve_relative(&buf, "a/b/c", "a/b/c");
assert_resolve_relative(&buf, "b/c", "./b/c");
assert_resolve_relative(&buf, "a/c", "a/./c");
assert_resolve_relative(&buf, "a/b/", "a/b/.");
assert_resolve_relative(&buf, "/a/b/c", "///a/b/c");
assert_resolve_relative(&buf, "/", "////");
assert_resolve_relative(&buf, "/a", "///a");
assert_resolve_relative(&buf, "/", "///.");
assert_resolve_relative(&buf, "/", "///a/..");
assert_resolve_relative(&buf, "../../path", "../../test//../././path");
assert_resolve_relative(&buf, "../d", "a/b/../../../c/../d");
cl_git_pass(git_buf_sets(&buf, "/.."));
cl_git_fail(git_path_resolve_relative(&buf, 0));
cl_git_pass(git_buf_sets(&buf, "/./.."));
cl_git_fail(git_path_resolve_relative(&buf, 0));
cl_git_pass(git_buf_sets(&buf, "/.//.."));
cl_git_fail(git_path_resolve_relative(&buf, 0));
cl_git_pass(git_buf_sets(&buf, "/../."));
cl_git_fail(git_path_resolve_relative(&buf, 0));
cl_git_pass(git_buf_sets(&buf, "/../.././../a"));
cl_git_fail(git_path_resolve_relative(&buf, 0));
cl_git_pass(git_buf_sets(&buf, "////.."));
cl_git_fail(git_path_resolve_relative(&buf, 0));
/* things that start with Windows network paths */
#ifdef GIT_WIN32
assert_resolve_relative(&buf, "//a/b/c", "//a/b/c");
assert_resolve_relative(&buf, "//a/", "//a/b/..");
assert_resolve_relative(&buf, "//a/b/c", "//a/Q/../b/x/y/../../c");
cl_git_pass(git_buf_sets(&buf, "//a/b/../.."));
cl_git_fail(git_path_resolve_relative(&buf, 0));
#else
assert_resolve_relative(&buf, "/a/b/c", "//a/b/c");
assert_resolve_relative(&buf, "/a/", "//a/b/..");
assert_resolve_relative(&buf, "/a/b/c", "//a/Q/../b/x/y/../../c");
assert_resolve_relative(&buf, "/", "//a/b/../..");
#endif
git_buf_dispose(&buf);
}
/* Inspired from https://github.com/git/git/blob/f06d47e7e0d9db709ee204ed13a8a7486149f494/refs.c#L36-100 */
int git_reference__normalize_name(
git_buf *buf,
const char *name,
unsigned int flags)
{
const char *current;
int segment_len, segments_count = 0, error = GIT_EINVALIDSPEC;
unsigned int process_flags;
bool normalize = (buf != NULL);
bool validate = (flags & GIT_REF_FORMAT__VALIDATION_DISABLE) == 0;
#ifdef GIT_USE_ICONV
git_path_iconv_t ic = GIT_PATH_ICONV_INIT;
#endif
assert(name);
process_flags = flags;
current = (char *)name;
if (validate && *current == '/')
goto cleanup;
if (normalize)
git_buf_clear(buf);
#ifdef GIT_USE_ICONV
if ((flags & GIT_REF_FORMAT__PRECOMPOSE_UNICODE) != 0) {
size_t namelen = strlen(current);
if ((error = git_path_iconv_init_precompose(&ic)) < 0 ||
(error = git_path_iconv(&ic, ¤t, &namelen)) < 0)
goto cleanup;
error = GIT_EINVALIDSPEC;
}
#endif
if (!validate) {
git_buf_sets(buf, current);
error = git_buf_oom(buf) ? -1 : 0;
goto cleanup;
}
while (true) {
segment_len = ensure_segment_validity(current);
if (segment_len < 0) {
if ((process_flags & GIT_REF_FORMAT_REFSPEC_PATTERN) &&
current[0] == '*' &&
(current[1] == '\0' || current[1] == '/')) {
/* Accept one wildcard as a full refname component. */
process_flags &= ~GIT_REF_FORMAT_REFSPEC_PATTERN;
segment_len = 1;
} else
goto cleanup;
}
if (segment_len > 0) {
if (normalize) {
size_t cur_len = git_buf_len(buf);
git_buf_joinpath(buf, git_buf_cstr(buf), current);
git_buf_truncate(buf,
cur_len + segment_len + (segments_count ? 1 : 0));
if (git_buf_oom(buf)) {
error = -1;
goto cleanup;
}
}
segments_count++;
}
/* No empty segment is allowed when not normalizing */
if (segment_len == 0 && !normalize)
goto cleanup;
if (current[segment_len] == '\0')
break;
current += segment_len + 1;
}
/* A refname can not be empty */
if (segment_len == 0 && segments_count == 0)
goto cleanup;
/* A refname can not end with "." */
if (current[segment_len - 1] == '.')
goto cleanup;
/* A refname can not end with "/" */
if (current[segment_len - 1] == '/')
goto cleanup;
if ((segments_count == 1 ) && !(flags & GIT_REF_FORMAT_ALLOW_ONELEVEL))
goto cleanup;
if ((segments_count == 1 ) &&
!(flags & GIT_REF_FORMAT_REFSPEC_SHORTHAND) &&
!(is_all_caps_and_underscore(name, (size_t)segment_len) ||
((flags & GIT_REF_FORMAT_REFSPEC_PATTERN) && !strcmp("*", name))))
goto cleanup;
if ((segments_count > 1)
&& (is_all_caps_and_underscore(name, strchr(name, '/') - name)))
goto cleanup;
error = 0;
cleanup:
if (error == GIT_EINVALIDSPEC)
giterr_set(
GITERR_REFERENCE,
"the given reference name '%s' is not valid", name);
if (error && normalize)
git_buf_free(buf);
#ifdef GIT_USE_ICONV
git_path_iconv_clear(&ic);
#endif
return error;
}
/* more thorough test of concatenation options */
void test_core_buffer__2(void)
{
git_buf buf = GIT_BUF_INIT;
int i;
char data[128];
cl_assert(buf.size == 0);
/* this must be safe to do */
git_buf_free(&buf);
cl_assert(buf.size == 0);
cl_assert(buf.asize == 0);
/* empty buffer should be empty string */
cl_assert_equal_s("", git_buf_cstr(&buf));
cl_assert(buf.size == 0);
/* cl_assert(buf.asize == 0); -- should not assume what git_buf does */
/* free should set us back to the beginning */
git_buf_free(&buf);
cl_assert(buf.size == 0);
cl_assert(buf.asize == 0);
/* add letter */
git_buf_putc(&buf, '+');
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s("+", git_buf_cstr(&buf));
/* add letter again */
git_buf_putc(&buf, '+');
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s("++", git_buf_cstr(&buf));
/* let's try that a few times */
for (i = 0; i < 16; ++i) {
git_buf_putc(&buf, '+');
cl_assert(git_buf_oom(&buf) == 0);
}
cl_assert_equal_s("++++++++++++++++++", git_buf_cstr(&buf));
git_buf_free(&buf);
/* add data */
git_buf_put(&buf, "xo", 2);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s("xo", git_buf_cstr(&buf));
/* add letter again */
git_buf_put(&buf, "xo", 2);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s("xoxo", git_buf_cstr(&buf));
/* let's try that a few times */
for (i = 0; i < 16; ++i) {
git_buf_put(&buf, "xo", 2);
cl_assert(git_buf_oom(&buf) == 0);
}
cl_assert_equal_s("xoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxo",
git_buf_cstr(&buf));
git_buf_free(&buf);
/* set to string */
git_buf_sets(&buf, test_string);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(test_string, git_buf_cstr(&buf));
/* append string */
git_buf_puts(&buf, test_string);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(test_string_x2, git_buf_cstr(&buf));
/* set to string again (should overwrite - not append) */
git_buf_sets(&buf, test_string);
cl_assert(git_buf_oom(&buf) == 0);
cl_assert_equal_s(test_string, git_buf_cstr(&buf));
/* test clear */
git_buf_clear(&buf);
cl_assert_equal_s("", git_buf_cstr(&buf));
git_buf_free(&buf);
/* test extracting data into buffer */
git_buf_puts(&buf, REP4("0123456789"));
cl_assert(git_buf_oom(&buf) == 0);
git_buf_copy_cstr(data, sizeof(data), &buf);
cl_assert_equal_s(REP4("0123456789"), data);
git_buf_copy_cstr(data, 11, &buf);
cl_assert_equal_s("0123456789", data);
git_buf_copy_cstr(data, 3, &buf);
cl_assert_equal_s("01", data);
git_buf_copy_cstr(data, 1, &buf);
cl_assert_equal_s("", data);
git_buf_copy_cstr(data, sizeof(data), &buf);
cl_assert_equal_s(REP4("0123456789"), data);
git_buf_sets(&buf, REP256("x"));
git_buf_copy_cstr(data, sizeof(data), &buf);
/* since sizeof(data) == 128, only 127 bytes should be copied */
cl_assert_equal_s(REP4(REP16("x")) REP16("x") REP16("x")
REP16("x") "xxxxxxxxxxxxxxx", data);
git_buf_free(&buf);
git_buf_copy_cstr(data, sizeof(data), &buf);
cl_assert_equal_s("", data);
}
void test_core_buffer__lf_and_crlf_conversions(void)
{
git_buf src = GIT_BUF_INIT, tgt = GIT_BUF_INIT;
/* LF source */
git_buf_sets(&src, "lf\nlf\nlf\nlf\n");
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
check_buf("lf\r\nlf\r\nlf\r\nlf\r\n", tgt);
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf(src.ptr, tgt);
git_buf_sets(&src, "\nlf\nlf\nlf\nlf\nlf");
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
check_buf("\r\nlf\r\nlf\r\nlf\r\nlf\r\nlf", tgt);
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf(src.ptr, tgt);
/* CRLF source */
git_buf_sets(&src, "crlf\r\ncrlf\r\ncrlf\r\ncrlf\r\n");
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf("crlf\ncrlf\ncrlf\ncrlf\n", tgt);
git_buf_sets(&src, "\r\ncrlf\r\ncrlf\r\ncrlf\r\ncrlf\r\ncrlf");
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf("\ncrlf\ncrlf\ncrlf\ncrlf\ncrlf", tgt);
/* CRLF in LF text */
git_buf_sets(&src, "\nlf\nlf\ncrlf\r\nlf\nlf\ncrlf\r\n");
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf("\nlf\nlf\ncrlf\nlf\nlf\ncrlf\n", tgt);
/* LF in CRLF text */
git_buf_sets(&src, "\ncrlf\r\ncrlf\r\nlf\ncrlf\r\ncrlf");
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf("\ncrlf\ncrlf\nlf\ncrlf\ncrlf", tgt);
/* bare CR test */
git_buf_sets(&src, "\rcrlf\r\nlf\nlf\ncr\rcrlf\r\nlf\ncr\r");
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf("\rcrlf\nlf\nlf\ncr\rcrlf\nlf\ncr\r", tgt);
git_buf_sets(&src, "\rcr\r");
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
check_buf(src.ptr, tgt);
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf("\rcr\r", tgt);
git_buf_free(&src);
git_buf_free(&tgt);
/* blob correspondence tests */
git_buf_sets(&src, ALL_CRLF_TEXT_RAW);
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf(ALL_CRLF_TEXT_AS_LF, tgt);
git_buf_free(&src);
git_buf_free(&tgt);
git_buf_sets(&src, ALL_LF_TEXT_RAW);
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
check_buf(ALL_LF_TEXT_AS_CRLF, tgt);
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf(ALL_LF_TEXT_AS_LF, tgt);
git_buf_free(&src);
git_buf_free(&tgt);
git_buf_sets(&src, MORE_CRLF_TEXT_RAW);
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf(MORE_CRLF_TEXT_AS_LF, tgt);
git_buf_free(&src);
git_buf_free(&tgt);
git_buf_sets(&src, MORE_LF_TEXT_RAW);
cl_git_fail_with(GIT_PASSTHROUGH, git_buf_text_lf_to_crlf(&tgt, &src));
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
check_buf(MORE_LF_TEXT_AS_LF, tgt);
git_buf_free(&src);
git_buf_free(&tgt);
}
void test_core_buffer__similarity_metric(void)
{
git_hashsig *a, *b;
git_buf buf = GIT_BUF_INIT;
int sim;
/* in the first case, we compare data to itself and expect 100% match */
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
cl_assert_equal_i(100, git_hashsig_compare(a, b));
git_hashsig_free(a);
git_hashsig_free(b);
/* if we change just a single byte, how much does that change magnify? */
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
cl_git_pass(git_buf_sets(&buf,
"000\n001\n002\n003\n004\n005\n006\n007\n008\n009\n" \
"010\n011\n012\n013\n014\n015\n016\n017\n018\n019\n" \
"x020x\n021\n022\n023\n024\n025\n026\n027\n028\n029\n" \
"030\n031\n032\n033\n034\n035\n036\n037\n038\n039\n" \
"040\n041\n042\n043\n044\n045\n046\n047\n048\n049\n"
));
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
sim = git_hashsig_compare(a, b);
cl_assert_in_range(95, sim, 100); /* expect >95% similarity */
git_hashsig_free(a);
git_hashsig_free(b);
/* let's try comparing data to a superset of itself */
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1
"050\n051\n052\n053\n054\n055\n056\n057\n058\n059\n"));
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
sim = git_hashsig_compare(a, b);
/* 20% lines added ~= 10% lines changed */
cl_assert_in_range(85, sim, 95); /* expect similarity around 90% */
git_hashsig_free(a);
git_hashsig_free(b);
/* what if we keep about half the original data and add half new */
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
cl_git_pass(git_buf_sets(&buf,
"000\n001\n002\n003\n004\n005\n006\n007\n008\n009\n" \
"010\n011\n012\n013\n014\n015\n016\n017\n018\n019\n" \
"020x\n021\n022\n023\n024\n" \
"x25\nx26\nx27\nx28\nx29\n" \
"x30\nx31\nx32\nx33\nx34\nx35\nx36\nx37\nx38\nx39\n" \
"x40\nx41\nx42\nx43\nx44\nx45\nx46\nx47\nx48\nx49\n"
));
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
sim = git_hashsig_compare(a, b);
/* 50% lines changed */
cl_assert_in_range(40, sim, 60); /* expect in the 40-60% similarity range */
git_hashsig_free(a);
git_hashsig_free(b);
/* lastly, let's check that we can hash file content as well */
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
cl_git_pass(git_futils_mkdir("scratch", NULL, 0755, GIT_MKDIR_PATH));
cl_git_mkfile("scratch/testdata", SIMILARITY_TEST_DATA_1);
cl_git_pass(git_hashsig_create_fromfile(
&b, "scratch/testdata", GIT_HASHSIG_NORMAL));
cl_assert_equal_i(100, git_hashsig_compare(a, b));
git_hashsig_free(a);
git_hashsig_free(b);
git_buf_free(&buf);
git_futils_rmdir_r("scratch", NULL, GIT_RMDIR_REMOVE_FILES);
}
int git_indexer_commit(git_indexer *idx, git_transfer_progress *stats)
{
git_mwindow *w = NULL;
unsigned int i, long_offsets = 0, left;
int error;
struct git_pack_idx_header hdr;
git_buf filename = GIT_BUF_INIT;
struct entry *entry;
git_oid trailer_hash, file_hash;
git_hash_ctx ctx;
git_filebuf index_file = {0};
void *packfile_trailer;
if (git_hash_ctx_init(&ctx) < 0)
return -1;
/* Test for this before resolve_deltas(), as it plays with idx->off */
if (idx->off < idx->pack->mwf.size - 20) {
giterr_set(GITERR_INDEXER, "Unexpected data at the end of the pack");
return -1;
}
packfile_trailer = git_mwindow_open(&idx->pack->mwf, &w, idx->pack->mwf.size - GIT_OID_RAWSZ, GIT_OID_RAWSZ, &left);
if (packfile_trailer == NULL) {
git_mwindow_close(&w);
goto on_error;
}
/* Compare the packfile trailer as it was sent to us and what we calculated */
git_oid_fromraw(&file_hash, (unsigned char*) packfile_trailer);
git_mwindow_close(&w);
git_hash_final(&trailer_hash, &idx->trailer);
if (git_oid_cmp(&file_hash, &trailer_hash)) {
giterr_set(GITERR_INDEXER, "packfile trailer mismatch");
return -1;
}
/* Freeze the number of deltas */
stats->total_deltas = stats->total_objects - stats->indexed_objects;
if ((error = resolve_deltas(idx, stats)) < 0)
return error;
if (stats->indexed_objects != stats->total_objects) {
giterr_set(GITERR_INDEXER, "early EOF");
return -1;
}
if (stats->local_objects > 0) {
if (update_header_and_rehash(idx, stats) < 0)
return -1;
git_hash_final(&trailer_hash, &idx->trailer);
write_at(idx, &trailer_hash, idx->pack->mwf.size - GIT_OID_RAWSZ, GIT_OID_RAWSZ);
}
git_vector_sort(&idx->objects);
git_buf_sets(&filename, idx->pack->pack_name);
git_buf_shorten(&filename, strlen("pack"));
git_buf_puts(&filename, "idx");
if (git_buf_oom(&filename))
return -1;
if (git_filebuf_open(&index_file, filename.ptr,
GIT_FILEBUF_HASH_CONTENTS, idx->mode) < 0)
goto on_error;
/* Write out the header */
hdr.idx_signature = htonl(PACK_IDX_SIGNATURE);
hdr.idx_version = htonl(2);
git_filebuf_write(&index_file, &hdr, sizeof(hdr));
/* Write out the fanout table */
for (i = 0; i < 256; ++i) {
uint32_t n = htonl(idx->fanout[i]);
git_filebuf_write(&index_file, &n, sizeof(n));
}
/* Write out the object names (SHA-1 hashes) */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
git_filebuf_write(&index_file, &entry->oid, sizeof(git_oid));
git_hash_update(&ctx, &entry->oid, GIT_OID_RAWSZ);
}
git_hash_final(&idx->hash, &ctx);
/* Write out the CRC32 values */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
git_filebuf_write(&index_file, &entry->crc, sizeof(uint32_t));
}
/* Write out the offsets */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
uint32_t n;
if (entry->offset == UINT32_MAX)
n = htonl(0x80000000 | long_offsets++);
else
n = htonl(entry->offset);
git_filebuf_write(&index_file, &n, sizeof(uint32_t));
}
/* Write out the long offsets */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
uint32_t split[2];
if (entry->offset != UINT32_MAX)
continue;
split[0] = htonl(entry->offset_long >> 32);
split[1] = htonl(entry->offset_long & 0xffffffff);
git_filebuf_write(&index_file, &split, sizeof(uint32_t) * 2);
}
/* Write out the packfile trailer to the index */
if (git_filebuf_write(&index_file, &trailer_hash, GIT_OID_RAWSZ) < 0)
goto on_error;
/* Write out the hash of the idx */
if (git_filebuf_hash(&trailer_hash, &index_file) < 0)
goto on_error;
git_filebuf_write(&index_file, &trailer_hash, sizeof(git_oid));
/* Figure out what the final name should be */
if (index_path(&filename, idx, ".idx") < 0)
goto on_error;
/* Commit file */
if (git_filebuf_commit_at(&index_file, filename.ptr) < 0)
goto on_error;
git_mwindow_free_all(&idx->pack->mwf);
/* We need to close the descriptor here so Windows doesn't choke on commit_at */
if (p_close(idx->pack->mwf.fd) < 0) {
giterr_set(GITERR_OS, "failed to close packfile");
goto on_error;
}
idx->pack->mwf.fd = -1;
if (index_path(&filename, idx, ".pack") < 0)
goto on_error;
/* And don't forget to rename the packfile to its new place. */
p_rename(idx->pack->pack_name, git_buf_cstr(&filename));
git_buf_free(&filename);
git_hash_ctx_cleanup(&ctx);
return 0;
on_error:
git_mwindow_free_all(&idx->pack->mwf);
git_filebuf_cleanup(&index_file);
git_buf_free(&filename);
git_hash_ctx_cleanup(&ctx);
return -1;
}
void test_core_buffer__similarity_metric_whitespace(void)
{
git_hashsig *a, *b;
git_buf buf = GIT_BUF_INIT;
int sim, i, j;
git_hashsig_option_t opt;
const char *tabbed =
" for (s = 0; s < sizeof(sep) / sizeof(char); ++s) {\n"
" separator = sep[s];\n"
" expect = expect_values[s];\n"
"\n"
" for (j = 0; j < sizeof(b) / sizeof(char*); ++j) {\n"
" for (i = 0; i < sizeof(a) / sizeof(char*); ++i) {\n"
" git_buf_join(&buf, separator, a[i], b[j]);\n"
" cl_assert_equal_s(*expect, buf.ptr);\n"
" expect++;\n"
" }\n"
" }\n"
" }\n";
const char *spaced =
" for (s = 0; s < sizeof(sep) / sizeof(char); ++s) {\n"
" separator = sep[s];\n"
" expect = expect_values[s];\n"
"\n"
" for (j = 0; j < sizeof(b) / sizeof(char*); ++j) {\n"
" for (i = 0; i < sizeof(a) / sizeof(char*); ++i) {\n"
" git_buf_join(&buf, separator, a[i], b[j]);\n"
" cl_assert_equal_s(*expect, buf.ptr);\n"
" expect++;\n"
" }\n"
" }\n"
" }\n";
const char *crlf_spaced2 =
" for (s = 0; s < sizeof(sep) / sizeof(char); ++s) {\r\n"
" separator = sep[s];\r\n"
" expect = expect_values[s];\r\n"
"\r\n"
" for (j = 0; j < sizeof(b) / sizeof(char*); ++j) {\r\n"
" for (i = 0; i < sizeof(a) / sizeof(char*); ++i) {\r\n"
" git_buf_join(&buf, separator, a[i], b[j]);\r\n"
" cl_assert_equal_s(*expect, buf.ptr);\r\n"
" expect++;\r\n"
" }\r\n"
" }\r\n"
" }\r\n";
const char *text[3] = { tabbed, spaced, crlf_spaced2 };
/* let's try variations of our own code with whitespace changes */
for (opt = GIT_HASHSIG_NORMAL; opt <= GIT_HASHSIG_SMART_WHITESPACE; ++opt) {
for (i = 0; i < 3; ++i) {
for (j = 0; j < 3; ++j) {
cl_git_pass(git_buf_sets(&buf, text[i]));
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, opt));
cl_git_pass(git_buf_sets(&buf, text[j]));
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, opt));
sim = git_hashsig_compare(a, b);
if (opt == GIT_HASHSIG_NORMAL) {
if (i == j)
cl_assert_equal_i(100, sim);
else
cl_assert_in_range(0, sim, 30); /* pretty different */
} else {
cl_assert_equal_i(100, sim);
}
git_hashsig_free(a);
git_hashsig_free(b);
}
}
}
git_buf_free(&buf);
}
