diff options
Diffstat (limited to 'third_party/nix/src/libutil/util.cc')
| -rw-r--r-- | third_party/nix/src/libutil/util.cc | 121 |
1 files changed, 62 insertions, 59 deletions
diff --git a/third_party/nix/src/libutil/util.cc b/third_party/nix/src/libutil/util.cc index 53d037cf58..696a8ff236 100644 --- a/third_party/nix/src/libutil/util.cc +++ b/third_party/nix/src/libutil/util.cc @@ -42,9 +42,9 @@ std::string SysError::addErrno(const std::string& s) { return s + ": " + strerror(errNo); } -string getEnv(const string& key, const string& def) { +std::string getEnv(const std::string& key, const std::string& def) { char* value = getenv(key.c_str()); - return value != nullptr ? string(value) : def; + return value != nullptr ? std::string(value) : def; } std::map<std::string, std::string> getEnv() { @@ -101,15 +101,15 @@ return canonPath(path); Path canonPath(const Path& path, bool resolveSymlinks) { assert(!path.empty()); - string s; + std::string s; if (path[0] != '/') { throw Error(format("not an absolute path: '%1%'") % path); } - string::const_iterator i = path.begin(); - string::const_iterator end = path.end(); - string temp; + std::string::const_iterator i = path.begin(); + std::string::const_iterator end = path.end(); + std::string temp; /* Count the number of times we follow a symlink and stop at some arbitrary (but high) limit to prevent infinite loops. */ @@ -153,7 +153,7 @@ Path canonPath(const Path& path, bool resolveSymlinks) { throw Error(format("infinite symlink recursion in path '%1%'") % path); } - temp = absPath(readLink(s), dirOf(s)) + string(i, end); + temp = absPath(readLink(s), dirOf(s)) + std::string(i, end); i = temp.begin(); /* restart */ end = temp.end(); s = ""; @@ -166,13 +166,13 @@ Path canonPath(const Path& path, bool resolveSymlinks) { Path dirOf(const Path& path) { Path::size_type pos = path.rfind('/'); - if (pos == string::npos) { + if (pos == std::string::npos) { return "."; } return pos == 0 ? "/" : Path(path, 0, pos); } -string baseNameOf(const Path& path) { +std::string baseNameOf(const Path& path) { if (path.empty()) { return ""; } @@ -183,17 +183,17 @@ string baseNameOf(const Path& path) { } Path::size_type pos = path.rfind('/', last); - if (pos == string::npos) { + if (pos == std::string::npos) { pos = 0; } else { pos += 1; } - return string(path, pos, last - pos + 1); + return std::string(path, pos, last - pos + 1); } bool isInDir(const Path& path, const Path& dir) { - return path[0] == '/' && string(path, 0, dir.size()) == dir && + return path[0] == '/' && std::string(path, 0, dir.size()) == dir && path.size() >= dir.size() + 2 && path[dir.size()] == '/'; } @@ -235,7 +235,7 @@ Path readLink(const Path& path) { throw SysError("reading symbolic link '%1%'", path); } else if (rlSize < bufSize) { - return string(buf.data(), rlSize); + return std::string(buf.data(), rlSize); } } } @@ -252,7 +252,7 @@ DirEntries readDirectory(DIR* dir, const Path& path) { struct dirent* dirent; while (errno = 0, dirent = readdir(dir)) { /* sic */ checkInterrupt(); - string name = dirent->d_name; + std::string name = dirent->d_name; if (name == "." || name == "..") { continue; } @@ -294,7 +294,7 @@ unsigned char getFileType(const Path& path) { return DT_UNKNOWN; } -string readFile(int fd) { +std::string readFile(int fd) { struct stat st; if (fstat(fd, &st) == -1) { throw SysError("statting file"); @@ -303,10 +303,10 @@ string readFile(int fd) { std::vector<unsigned char> buf(st.st_size); readFull(fd, buf.data(), st.st_size); - return string((char*)buf.data(), st.st_size); + return std::string((char*)buf.data(), st.st_size); } -string readFile(const Path& path, bool drain) { +std::string readFile(const Path& path, bool drain) { AutoCloseFD fd = open(path.c_str(), O_RDONLY | O_CLOEXEC); if (!fd) { throw SysError(format("opening file '%1%'") % path); @@ -322,7 +322,7 @@ void readFile(const Path& path, Sink& sink) { drainFD(fd.get(), sink); } -void writeFile(const Path& path, const string& s, mode_t mode) { +void writeFile(const Path& path, const std::string& s, mode_t mode) { AutoCloseFD fd = open(path.c_str(), O_WRONLY | O_TRUNC | O_CREAT | O_CLOEXEC, mode); if (!fd) { @@ -350,8 +350,8 @@ void writeFile(const Path& path, Source& source, mode_t mode) { } } -string readLine(int fd) { - string s; +std::string readLine(int fd) { + std::string s; while (true) { checkInterrupt(); char ch; @@ -372,7 +372,7 @@ string readLine(int fd) { } } -void writeLine(int fd, string s) { +void writeLine(int fd, std::string s) { s += '\n'; writeFull(fd, s); } @@ -381,7 +381,7 @@ static void _deletePath(int parentfd, const Path& path, unsigned long long& bytesFreed) { checkInterrupt(); - string name(baseNameOf(path)); + std::string name(baseNameOf(path)); struct stat st; if (fstatat(parentfd, name.c_str(), &st, AT_SYMLINK_NOFOLLOW) == -1) { @@ -539,8 +539,8 @@ Path getConfigDir() { std::vector<Path> getConfigDirs() { Path configHome = getConfigDir(); - string configDirs = getEnv("XDG_CONFIG_DIRS"); - auto result = tokenizeString<std::vector<string>>(configDirs, ":"); + std::string configDirs = getEnv("XDG_CONFIG_DIRS"); + auto result = tokenizeString<std::vector<std::string>>(configDirs, ":"); result.insert(result.begin(), configHome); return result; } @@ -643,11 +643,11 @@ void writeFull(int fd, const unsigned char* buf, size_t count, } } -void writeFull(int fd, const string& s, bool allowInterrupts) { +void writeFull(int fd, const std::string& s, bool allowInterrupts) { writeFull(fd, (const unsigned char*)s.data(), s.size(), allowInterrupts); } -string drainFD(int fd, bool block) { +std::string drainFD(int fd, bool block) { StringSink sink; drainFD(fd, sink, block); return std::move(*sink.s); @@ -694,7 +694,7 @@ void drainFD(int fd, Sink& sink, bool block) { AutoDelete::AutoDelete() : del{false} {} -AutoDelete::AutoDelete(string p, bool recursive) : path(std::move(p)) { +AutoDelete::AutoDelete(std::string p, bool recursive) : path(std::move(p)) { del = true; this->recursive = recursive; } @@ -812,7 +812,7 @@ int Pid::kill() { process group, send the signal to every process in the child process group (which hopefully includes *all* its children). */ if (::kill(separatePG ? -pid : pid, killSignal) != 0) { - LOG(ERROR) << SysError("killing process %d", pid).msg(); + LOG(ERROR) << SysError("killing process %d", pid).msg(); } return wait(); @@ -950,8 +950,9 @@ std::vector<char*> stringsToCharPtrs(const Strings& ss) { return res; } -string runProgram(const Path& program, bool searchPath, const Strings& args, - const std::optional<std::string>& input) { +std::string runProgram(const Path& program, bool searchPath, + const Strings& args, + const std::optional<std::string>& input) { RunOptions opts(program, args); opts.searchPath = searchPath; opts.input = input; @@ -1114,7 +1115,7 @@ void runProgram2(const RunOptions& options) { } } -void closeMostFDs(const set<int>& exceptions) { +void closeMostFDs(const std::set<int>& exceptions) { #if __linux__ try { for (auto& s : readDirectory("/proc/self/fd")) { @@ -1168,28 +1169,30 @@ void _interrupted() { ////////////////////////////////////////////////////////////////////// template <class C> -C tokenizeString(const string& s, const string& separators) { +C tokenizeString(const std::string& s, const std::string& separators) { C result; - string::size_type pos = s.find_first_not_of(separators, 0); - while (pos != string::npos) { - string::size_type end = s.find_first_of(separators, pos + 1); - if (end == string::npos) { + std::string::size_type pos = s.find_first_not_of(separators, 0); + while (pos != std::string::npos) { + std::string::size_type end = s.find_first_of(separators, pos + 1); + if (end == std::string::npos) { end = s.size(); } - string token(s, pos, end - pos); + std::string token(s, pos, end - pos); result.insert(result.end(), token); pos = s.find_first_not_of(separators, end); } return result; } -template Strings tokenizeString(const string& s, const string& separators); -template StringSet tokenizeString(const string& s, const string& separators); -template vector<string> tokenizeString(const string& s, - const string& separators); +template Strings tokenizeString(const std::string& s, + const std::string& separators); +template StringSet tokenizeString(const std::string& s, + const std::string& separators); +template std::vector<std::string> tokenizeString(const std::string& s, + const std::string& separators); -string concatStringsSep(const string& sep, const Strings& ss) { - string s; +std::string concatStringsSep(const std::string& sep, const Strings& ss) { + std::string s; for (auto& i : ss) { if (!s.empty()) { s += sep; @@ -1199,8 +1202,8 @@ string concatStringsSep(const string& sep, const Strings& ss) { return s; } -string concatStringsSep(const string& sep, const StringSet& ss) { - string s; +std::string concatStringsSep(const std::string& sep, const StringSet& ss) { + std::string s; for (auto& i : ss) { if (!s.empty()) { s += sep; @@ -1210,21 +1213,21 @@ string concatStringsSep(const string& sep, const StringSet& ss) { return s; } -string trim(const string& s, const string& whitespace) { +std::string trim(const std::string& s, const std::string& whitespace) { auto i = s.find_first_not_of(whitespace); - if (i == string::npos) { + if (i == std::string::npos) { return ""; } auto j = s.find_last_not_of(whitespace); - return string(s, i, j == string::npos ? j : j - i + 1); + return std::string(s, i, j == std::string::npos ? j : j - i + 1); } -string replaceStrings(const std::string& s, const std::string& from, - const std::string& to) { +std::string replaceStrings(const std::string& s, const std::string& from, + const std::string& to) { if (from.empty()) { return s; } - string res = s; + std::string res = s; size_t pos = 0; while ((pos = res.find(from, pos)) != std::string::npos) { res.replace(pos, from.size(), to); @@ -1233,7 +1236,7 @@ string replaceStrings(const std::string& s, const std::string& from, return res; } -string statusToString(int status) { +std::string statusToString(int status) { if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { if (WIFEXITED(status)) { return (format("failed with exit code %1%") % WEXITSTATUS(status)).str(); @@ -1259,13 +1262,13 @@ bool statusOk(int status) { return WIFEXITED(status) && WEXITSTATUS(status) == 0; } -bool hasPrefix(const string& s, const string& prefix) { +bool hasPrefix(const std::string& s, const std::string& prefix) { return s.compare(0, prefix.size(), prefix) == 0; } -bool hasSuffix(const string& s, const string& suffix) { +bool hasSuffix(const std::string& s, const std::string& suffix) { return s.size() >= suffix.size() && - string(s, s.size() - suffix.size()) == suffix; + std::string(s, s.size() - suffix.size()) == suffix; } std::string toLower(const std::string& s) { @@ -1361,8 +1364,8 @@ std::string filterANSIEscapes(const std::string& s, bool filterAll, static char base64Chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; -string base64Encode(const string& s) { - string res; +std::string base64Encode(const std::string& s) { + std::string res; int data = 0; int nbits = 0; @@ -1385,7 +1388,7 @@ string base64Encode(const string& s) { return res; } -string base64Decode(const string& s) { +std::string base64Decode(const std::string& s) { bool init = false; char decode[256]; if (!init) { @@ -1397,7 +1400,7 @@ string base64Decode(const string& s) { init = true; } - string res; + std::string res; unsigned int d = 0; unsigned int bits = 0; |