int git_futils_mkdir_r(const char *path, int mode)
{
int error, root_path_offset;
char *pp, *sp;
char *path_copy = git__strdup(path);
if (path_copy == NULL)
return GIT_ENOMEM;
error = GIT_SUCCESS;
pp = path_copy;
root_path_offset = git_path_root(pp);
if (root_path_offset > 0)
pp += root_path_offset; /* On Windows, will skip the drive name (eg. C: or D:) */
while (error == GIT_SUCCESS && (sp = strchr(pp, '/')) != NULL) {
if (sp != pp && git_futils_isdir(path_copy) < GIT_SUCCESS) {
*sp = 0;
error = p_mkdir(path_copy, mode);
/* Do not choke while trying to recreate an existing directory */
if (errno == EEXIST)
error = GIT_SUCCESS;
*sp = '/';
}
pp = sp + 1;
}
if (*pp != '\0' && error == GIT_SUCCESS) {
error = p_mkdir(path, mode);
if (errno == EEXIST)
error = GIT_SUCCESS;
}
free(path_copy);
if (error < GIT_SUCCESS)
return git__throw(error, "Failed to recursively create `%s` tree structure", path);
return GIT_SUCCESS;
}
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;
}
static int create_and_configure_origin(
git_remote **out,
git_repository *repo,
const char *url,
const git_clone_options *options)
{
int error;
git_remote *origin = NULL;
char buf[GIT_PATH_MAX];
git_remote_create_cb remote_create = options->remote_cb;
void *payload = options->remote_cb_payload;
/* If the path exists and is a dir, the url should be the absolute path */
if (git_path_root(url) < 0 && git_path_exists(url) && git_path_isdir(url)) {
if (p_realpath(url, buf) == NULL)
return -1;
url = buf;
}
if (!remote_create) {
remote_create = default_remote_create;
payload = (void *)&options->remote_callbacks;
}
if ((error = remote_create(&origin, repo, "origin", url, payload)) < 0)
goto on_error;
if ((error = git_remote_save(origin)) < 0)
goto on_error;
*out = origin;
return 0;
on_error:
git_remote_free(origin);
return error;
}
GIT_INLINE(int) mkdir_canonicalize(
git_buf *path,
uint32_t flags)
{
ssize_t root_len;
if (path->size == 0) {
giterr_set(GITERR_OS, "attempt to create empty path");
return -1;
}
/* Trim trailing slashes (except the root) */
if ((root_len = git_path_root(path->ptr)) < 0)
root_len = 0;
else
root_len++;
while (path->size > (size_t)root_len && path->ptr[path->size - 1] == '/')
path->ptr[--path->size] = '\0';
/* if we are not supposed to made the last element, truncate it */
if ((flags & GIT_MKDIR_SKIP_LAST2) != 0) {
git_path_dirname_r(path, path->ptr);
flags |= GIT_MKDIR_SKIP_LAST;
}
if ((flags & GIT_MKDIR_SKIP_LAST) != 0) {
git_path_dirname_r(path, path->ptr);
}
/* We were either given the root path (or trimmed it to
* the root), we don't have anything to do.
*/
if (path->size <= (size_t)root_len)
git_buf_clear(path);
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_path_find_dir(git_buf *dir, const char *path, const char *base)
{
int error;
if (base != NULL && git_path_root(path) < 0)
error = git_buf_joinpath(dir, base, path);
else
error = git_buf_sets(dir, path);
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);
if (!error)
error = git_path_to_dir(dir);
return error;
}
int git_path_resolve_relative(git_buf *path, size_t ceiling)
{
char *base, *to, *from, *next;
size_t len;
if (!path || git_buf_oom(path))
return -1;
if (ceiling > path->size)
ceiling = path->size;
/* recognize drive prefixes, etc. that should not be backed over */
if (ceiling == 0)
ceiling = git_path_root(path->ptr) + 1;
/* recognize URL prefixes that should not be backed over */
if (ceiling == 0) {
for (next = path->ptr; *next && git__isalpha(*next); ++next);
if (next[0] == ':' && next[1] == '/' && next[2] == '/')
ceiling = (next + 3) - path->ptr;
}
base = to = from = path->ptr + ceiling;
while (*from) {
for (next = from; *next && *next != '/'; ++next);
len = next - from;
if (len == 1 && from[0] == '.')
/* do nothing with singleton dot */;
else if (len == 2 && from[0] == '.' && from[1] == '.') {
/* error out if trying to up one from a hard base */
if (to == base && ceiling != 0) {
giterr_set(GITERR_INVALID,
"Cannot strip root component off url");
return -1;
}
/* no more path segments to strip,
* use '../' as a new base path */
if (to == base) {
if (*next == '/')
len++;
if (to != from)
memmove(to, from, len);
to += len;
/* this is now the base, can't back up from a
* relative prefix */
base = to;
} else {
/* back up a path segment */
while (to > base && to[-1] == '/') to--;
while (to > base && to[-1] != '/') to--;
}
} else {
if (*next == '/' && *from != '/')
len++;
if (to != from)
memmove(to, from, len);
to += len;
}
from += len;
while (*from == '/') from++;
}
*to = '\0';
path->size = to - path->ptr;
return 0;
}
int git_futils_mkdir(
const char *path,
const char *base,
mode_t mode,
uint32_t flags)
{
int error = -1;
git_buf make_path = GIT_BUF_INIT;
ssize_t root = 0, min_root_len;
char lastch = '/', *tail;
struct stat st;
/* build path and find "root" where we should start calling mkdir */
if (git_path_join_unrooted(&make_path, path, base, &root) < 0)
return -1;
if (make_path.size == 0) {
giterr_set(GITERR_OS, "Attempt to create empty path");
goto done;
}
/* remove trailing slashes on path */
while (make_path.ptr[make_path.size - 1] == '/') {
make_path.size--;
make_path.ptr[make_path.size] = '\0';
}
/* if we are not supposed to made the last element, truncate it */
if ((flags & GIT_MKDIR_SKIP_LAST2) != 0) {
git_buf_rtruncate_at_char(&make_path, '/');
flags |= GIT_MKDIR_SKIP_LAST;
}
if ((flags & GIT_MKDIR_SKIP_LAST) != 0)
git_buf_rtruncate_at_char(&make_path, '/');
/* if nothing left after truncation, then we're done! */
if (!make_path.size) {
error = 0;
goto done;
}
/* if we are not supposed to make the whole path, reset root */
if ((flags & GIT_MKDIR_PATH) == 0)
root = git_buf_rfind(&make_path, '/');
/* advance root past drive name or network mount prefix */
min_root_len = git_path_root(make_path.ptr);
if (root < min_root_len)
root = min_root_len;
while (root >= 0 && make_path.ptr[root] == '/')
++root;
/* clip root to make_path length */
if (root > (ssize_t)make_path.size)
root = (ssize_t)make_path.size; /* i.e. NUL byte of string */
if (root < 0)
root = 0;
/* walk down tail of path making each directory */
for (tail = &make_path.ptr[root]; *tail; *tail = lastch) {
/* advance tail to include next path component */
while (*tail == '/')
tail++;
while (*tail && *tail != '/')
tail++;
/* truncate path at next component */
lastch = *tail;
*tail = '\0';
st.st_mode = 0;
/* make directory */
if (p_mkdir(make_path.ptr, mode) < 0) {
int tmp_errno = giterr_system_last();
/* ignore error if not at end or if directory already exists */
if (lastch == '\0' &&
(p_stat(make_path.ptr, &st) < 0 || !S_ISDIR(st.st_mode))) {
giterr_system_set(tmp_errno);
giterr_set(GITERR_OS, "Failed to make directory '%s'", make_path.ptr);
goto done;
}
/* with exclusive create, existing dir is an error */
if ((flags & GIT_MKDIR_EXCL) != 0) {
giterr_set(GITERR_OS, "Directory already exists '%s'", make_path.ptr);
error = GIT_EEXISTS;
goto done;
}
}
/* chmod if requested and necessary */
if (((flags & GIT_MKDIR_CHMOD_PATH) != 0 ||
(lastch == '\0' && (flags & GIT_MKDIR_CHMOD) != 0)) &&
st.st_mode != mode &&
(error = p_chmod(make_path.ptr, mode)) < 0 &&
lastch == '\0') {
giterr_set(GITERR_OS, "Failed to set permissions on '%s'", make_path.ptr);
goto done;
}
}
error = 0;
/* check that full path really is a directory if requested & needed */
if ((flags & GIT_MKDIR_VERIFY_DIR) != 0 &&
lastch != '\0' &&
(p_stat(make_path.ptr, &st) < 0 || !S_ISDIR(st.st_mode))) {
giterr_set(GITERR_OS, "Path is not a directory '%s'", make_path.ptr);
error = GIT_ENOTFOUND;
}
done:
git_buf_free(&make_path);
return error;
}
int git_futils_mkdir_relative(
const char *relative_path,
const char *base,
mode_t mode,
uint32_t flags,
struct git_futils_mkdir_options *opts)
{
git_buf make_path = GIT_BUF_INIT;
ssize_t root = 0, min_root_len;
char lastch = '/', *tail;
struct stat st;
struct git_futils_mkdir_options empty_opts = {0};
int error;
if (!opts)
opts = &empty_opts;
/* build path and find "root" where we should start calling mkdir */
if (git_path_join_unrooted(&make_path, relative_path, base, &root) < 0)
return -1;
if ((error = mkdir_canonicalize(&make_path, flags)) < 0 ||
make_path.size == 0)
goto done;
/* if we are not supposed to make the whole path, reset root */
if ((flags & GIT_MKDIR_PATH) == 0)
root = git_buf_rfind(&make_path, '/');
/* advance root past drive name or network mount prefix */
min_root_len = git_path_root(make_path.ptr);
if (root < min_root_len)
root = min_root_len;
while (root >= 0 && make_path.ptr[root] == '/')
++root;
/* clip root to make_path length */
if (root > (ssize_t)make_path.size)
root = (ssize_t)make_path.size; /* i.e. NUL byte of string */
if (root < 0)
root = 0;
/* walk down tail of path making each directory */
for (tail = &make_path.ptr[root]; *tail; *tail = lastch) {
bool mkdir_attempted = false;
/* advance tail to include next path component */
while (*tail == '/')
tail++;
while (*tail && *tail != '/')
tail++;
/* truncate path at next component */
lastch = *tail;
*tail = '\0';
st.st_mode = 0;
if (opts->dir_map && git_strmap_exists(opts->dir_map, make_path.ptr))
continue;
/* See what's going on with this path component */
opts->perfdata.stat_calls++;
retry_lstat:
if (p_lstat(make_path.ptr, &st) < 0) {
if (mkdir_attempted || errno != ENOENT) {
giterr_set(GITERR_OS, "cannot access component in path '%s'", make_path.ptr);
error = -1;
goto done;
}
giterr_clear();
opts->perfdata.mkdir_calls++;
mkdir_attempted = true;
if (p_mkdir(make_path.ptr, mode) < 0) {
if (errno == EEXIST)
goto retry_lstat;
giterr_set(GITERR_OS, "failed to make directory '%s'", make_path.ptr);
error = -1;
goto done;
}
} else {
if ((error = mkdir_validate_dir(
make_path.ptr, &st, mode, flags, opts)) < 0)
goto done;
}
/* chmod if requested and necessary */
if ((error = mkdir_validate_mode(
make_path.ptr, &st, (lastch == '\0'), mode, flags, opts)) < 0)
goto done;
if (opts->dir_map && opts->pool) {
char *cache_path;
size_t alloc_size;
GITERR_CHECK_ALLOC_ADD(&alloc_size, make_path.size, 1);
if (!git__is_uint32(alloc_size))
return -1;
cache_path = git_pool_malloc(opts->pool, (uint32_t)alloc_size);
GITERR_CHECK_ALLOC(cache_path);
memcpy(cache_path, make_path.ptr, make_path.size + 1);
git_strmap_insert(opts->dir_map, cache_path, cache_path, &error);
if (error < 0)
goto done;
}
}
error = 0;
/* check that full path really is a directory if requested & needed */
if ((flags & GIT_MKDIR_VERIFY_DIR) != 0 &&
lastch != '\0') {
opts->perfdata.stat_calls++;
if (p_stat(make_path.ptr, &st) < 0 || !S_ISDIR(st.st_mode)) {
giterr_set(GITERR_OS, "path is not a directory '%s'",
make_path.ptr);
error = GIT_ENOTFOUND;
}
}
done:
git_buf_free(&make_path);
return error;
}
int git_futils_mkdir(
const char *path,
mode_t mode,
uint32_t flags)
{
git_buf make_path = GIT_BUF_INIT, parent_path = GIT_BUF_INIT;
const char *relative;
struct git_futils_mkdir_options opts = { 0 };
struct stat st;
size_t depth = 0;
int len = 0, root_len, error;
if ((error = git_buf_puts(&make_path, path)) < 0 ||
(error = mkdir_canonicalize(&make_path, flags)) < 0 ||
(error = git_buf_puts(&parent_path, make_path.ptr)) < 0 ||
make_path.size == 0)
goto done;
root_len = git_path_root(make_path.ptr);
/* find the first parent directory that exists. this will be used
* as the base to dirname_relative.
*/
for (relative = make_path.ptr; parent_path.size; ) {
error = p_lstat(parent_path.ptr, &st);
if (error == 0) {
break;
} else if (errno != ENOENT) {
giterr_set(GITERR_OS, "failed to stat '%s'", parent_path.ptr);
goto done;
}
depth++;
/* examine the parent of the current path */
if ((len = git_path_dirname_r(&parent_path, parent_path.ptr)) < 0) {
error = len;
goto done;
}
assert(len);
/* we've walked all the given path's parents and it's either relative
* or rooted. either way, give up and make the entire path.
*/
if ((len == 1 && parent_path.ptr[0] == '.') || len == root_len+1) {
relative = make_path.ptr;
break;
}
relative = make_path.ptr + len + 1;
/* not recursive? just make this directory relative to its parent. */
if ((flags & GIT_MKDIR_PATH) == 0)
break;
}
/* we found an item at the location we're trying to create,
* validate it.
*/
if (depth == 0) {
error = mkdir_validate_dir(make_path.ptr, &st, mode, flags, &opts);
if (!error)
error = mkdir_validate_mode(
make_path.ptr, &st, true, mode, flags, &opts);
goto done;
}
/* we already took `SKIP_LAST` and `SKIP_LAST2` into account when
* canonicalizing `make_path`.
*/
flags &= ~(GIT_MKDIR_SKIP_LAST2 | GIT_MKDIR_SKIP_LAST);
error = git_futils_mkdir_relative(relative,
parent_path.size ? parent_path.ptr : NULL, mode, flags, &opts);
done:
git_buf_free(&make_path);
git_buf_free(&parent_path);
return error;
}
int git_futils_mkdir_ext(
const char *path,
const char *base,
mode_t mode,
uint32_t flags,
struct git_futils_mkdir_options *opts)
{
int error = -1;
git_buf make_path = GIT_BUF_INIT;
ssize_t root = 0, min_root_len, root_len;
char lastch = '/', *tail;
struct stat st;
/* build path and find "root" where we should start calling mkdir */
if (git_path_join_unrooted(&make_path, path, base, &root) < 0)
return -1;
if (make_path.size == 0) {
giterr_set(GITERR_OS, "Attempt to create empty path");
goto done;
}
/* Trim trailing slashes (except the root) */
if ((root_len = git_path_root(make_path.ptr)) < 0)
root_len = 0;
else
root_len++;
while (make_path.size > (size_t)root_len &&
make_path.ptr[make_path.size - 1] == '/')
make_path.ptr[--make_path.size] = '\0';
/* if we are not supposed to made the last element, truncate it */
if ((flags & GIT_MKDIR_SKIP_LAST2) != 0) {
git_path_dirname_r(&make_path, make_path.ptr);
flags |= GIT_MKDIR_SKIP_LAST;
}
if ((flags & GIT_MKDIR_SKIP_LAST) != 0) {
git_path_dirname_r(&make_path, make_path.ptr);
}
/* We were either given the root path (or trimmed it to
* the root), we don't have anything to do.
*/
if (make_path.size <= (size_t)root_len) {
error = 0;
goto done;
}
/* if we are not supposed to make the whole path, reset root */
if ((flags & GIT_MKDIR_PATH) == 0)
root = git_buf_rfind(&make_path, '/');
/* advance root past drive name or network mount prefix */
min_root_len = git_path_root(make_path.ptr);
if (root < min_root_len)
root = min_root_len;
while (root >= 0 && make_path.ptr[root] == '/')
++root;
/* clip root to make_path length */
if (root > (ssize_t)make_path.size)
root = (ssize_t)make_path.size; /* i.e. NUL byte of string */
if (root < 0)
root = 0;
/* walk down tail of path making each directory */
for (tail = &make_path.ptr[root]; *tail; *tail = lastch) {
/* advance tail to include next path component */
while (*tail == '/')
tail++;
while (*tail && *tail != '/')
tail++;
/* truncate path at next component */
lastch = *tail;
*tail = '\0';
st.st_mode = 0;
if (opts->dir_map && git_strmap_exists(opts->dir_map, make_path.ptr))
continue;
/* See what's going on with this path component */
opts->perfdata.stat_calls++;
if (p_lstat(make_path.ptr, &st) < 0) {
opts->perfdata.mkdir_calls++;
if (errno != ENOENT || p_mkdir(make_path.ptr, mode) < 0) {
giterr_set(GITERR_OS, "Failed to make directory '%s'", make_path.ptr);
error = GIT_EEXISTS;
goto done;
}
giterr_clear();
} else {
/* with exclusive create, existing dir is an error */
if ((flags & GIT_MKDIR_EXCL) != 0) {
giterr_set(GITERR_FILESYSTEM, "Failed to make directory '%s': directory exists", make_path.ptr);
error = GIT_EEXISTS;
goto done;
}
if ((error = validate_existing(
make_path.ptr, &st, mode, flags, &opts->perfdata)) < 0)
goto done;
}
/* chmod if requested and necessary */
if (((flags & GIT_MKDIR_CHMOD_PATH) != 0 ||
(lastch == '\0' && (flags & GIT_MKDIR_CHMOD) != 0)) &&
st.st_mode != mode) {
opts->perfdata.chmod_calls++;
if ((error = p_chmod(make_path.ptr, mode)) < 0 &&
lastch == '\0') {
giterr_set(GITERR_OS, "Failed to set permissions on '%s'",
make_path.ptr);
goto done;
}
}
if (opts->dir_map && opts->pool) {
char *cache_path;
size_t alloc_size;
GITERR_CHECK_ALLOC_ADD(&alloc_size, make_path.size, 1);
if (!git__is_uint32(alloc_size))
return -1;
cache_path = git_pool_malloc(opts->pool, (uint32_t)alloc_size);
GITERR_CHECK_ALLOC(cache_path);
memcpy(cache_path, make_path.ptr, make_path.size + 1);
git_strmap_insert(opts->dir_map, cache_path, cache_path, error);
if (error < 0)
goto done;
}
}
error = 0;
/* check that full path really is a directory if requested & needed */
if ((flags & GIT_MKDIR_VERIFY_DIR) != 0 &&
lastch != '\0') {
opts->perfdata.stat_calls++;
if (p_stat(make_path.ptr, &st) < 0 || !S_ISDIR(st.st_mode)) {
giterr_set(GITERR_OS, "Path is not a directory '%s'",
make_path.ptr);
error = GIT_ENOTFOUND;
}
}
done:
git_buf_free(&make_path);
return error;
}
int git_futils_mkdir_r(const char *path, const char *base, const mode_t mode)
{
git_buf make_path = GIT_BUF_INIT;
size_t start = 0;
char *pp, *sp;
bool failed = false;
if (base != NULL) {
/*
* when a base is being provided, it is supposed to already exist.
* Therefore, no attempt is being made to recursively create this leading path
* segment. It's just skipped. */
start = strlen(base);
if (git_buf_joinpath(&make_path, base, path) < 0)
return -1;
} else {
int root_path_offset;
if (git_buf_puts(&make_path, path) < 0)
return -1;
root_path_offset = git_path_root(make_path.ptr);
if (root_path_offset > 0) {
/*
* On Windows, will skip the drive name (eg. C: or D:)
* or the leading part of a network path (eg. //computer_name ) */
start = root_path_offset;
}
}
pp = make_path.ptr + start;
while (!failed && (sp = strchr(pp, '/')) != NULL) {
if (sp != pp && git_path_isdir(make_path.ptr) == false) {
*sp = 0;
/* Do not choke while trying to recreate an existing directory */
if (p_mkdir(make_path.ptr, mode) < 0 && errno != EEXIST)
failed = true;
*sp = '/';
}
pp = sp + 1;
}
if (*pp != '\0' && !failed) {
if (p_mkdir(make_path.ptr, mode) < 0 && errno != EEXIST)
failed = true;
}
git_buf_free(&make_path);
if (failed) {
giterr_set(GITERR_OS,
"Failed to create directory structure at '%s'", path);
return -1;
}
return 0;
}
