// For each directory component in candidate_dir to the root of the filesystem,
// look for root_file. If root_file is present, update relpath to reflect the
// relative path to the original value of candidate_dir and return true. If
// not found, return false. candidate_dir is modified by this function if
// return true.
static bool find_file_in_dir_tree(
const w_string& root_file,
w_string_piece& candidate_dir,
w_string_piece& relpath) {
w_string_piece current_dir(candidate_dir);
while (true) {
auto projPath = w_string::pathCat({current_dir, root_file});
if (w_path_exists(projPath.c_str())) {
// Got a match
relpath = w_string_piece(candidate_dir);
if (candidate_dir.size() == current_dir.size()) {
relpath = w_string_piece();
} else {
relpath.advance(current_dir.size() + 1);
candidate_dir = current_dir;
}
return true;
}
auto parent = current_dir.dirName();
if (parent == nullptr || parent == current_dir) {
return false;
}
current_dir = parent;
}
return false;
}
bool w_string_piece::operator==(w_string_piece other) const {
if (s_ == other.s_ && e_ == other.e_) {
return true;
}
if (size() != other.size()) {
return false;
}
return memcmp(data(), other.data(), size()) == 0;
}
bool w_string_equal_caseless(w_string_piece a, w_string_piece b) {
uint32_t i;
if (a.size() != b.size()) {
return false;
}
for (i = 0; i < a.size(); i++) {
if (tolower((uint8_t)a[i]) != tolower((uint8_t)b[i])) {
return false;
}
}
return true;
}
bool w_string_piece::hasSuffix(w_string_piece suffix) const {
unsigned int base, i;
if (size() < suffix.size() + 1) {
return false;
}
base = size() - suffix.size();
if (s_[base - 1] != '.') {
return false;
}
for (i = 0; i < suffix.size(); i++) {
if (tolower((uint8_t)s_[base + i]) != suffix[i]) {
return false;
}
}
return true;
}
bool w_string_piece::operator<(w_string_piece other) const {
int res;
if (size() < other.size()) {
res = memcmp(data(), other.data(), size());
return (res == 0 ? -1 : res) < 0;
} else if (size() > other.size()) {
res = memcmp(data(), other.data(), other.size());
return (res == 0 ? +1 : res) < 0;
}
return memcmp(data(), other.data(), size()) < 0;
}
bool w_string_piece::startsWithCaseInsensitive(w_string_piece prefix) const{
if (prefix.size() > size()) {
return false;
}
auto me = s_;
auto pref = prefix.s_;
while (pref < prefix.e_) {
if (tolower((uint8_t)*me) != tolower((uint8_t)*pref)) {
return false;
}
++pref;
++me;
}
return true;
}
w_string w_dir_path_cat_str(
const struct watchman_dir* dir,
w_string_piece extra) {
uint32_t length = 0;
const struct watchman_dir* d;
w_string_t *s;
char *buf, *end;
if (extra.size()) {
length = extra.size() + 1 /* separator */;
}
for (d = dir; d; d = d->parent) {
length += d->name.size() + 1 /* separator OR final NUL terminator */;
}
s = (w_string_t*)(new char[sizeof(*s) + length]);
new (s) watchman_string();
s->refcnt = 1;
s->len = length - 1;
buf = (char *)(s + 1);
end = buf + s->len;
*end = 0;
if (extra.size()) {
end -= extra.size();
memcpy(end, extra.data(), extra.size());
}
for (d = dir; d; d = d->parent) {
if (d != dir || (extra.size())) {
--end;
*end = '/';
}
end -= d->name.size();
memcpy(end, d->name.data(), d->name.size());
}
s->buf = buf;
return w_string(s, false);
}
void ChildProcess::Options::chdir(w_string_piece path) {
cwd_ = std::string(path.data(), path.size());
#ifdef _WIN32
posix_spawnattr_setcwd_np(&inner_->attr, cwd_.c_str());
#endif
}
bool w_string_piece::startsWith(w_string_piece prefix) const {
if (prefix.size() > size()) {
return false;
}
return memcmp(data(), prefix.data(), prefix.size()) == 0;
}
