diff options
Diffstat (limited to 'third_party/nix/src/libutil/util.hh')
| -rw-r--r-- | third_party/nix/src/libutil/util.hh | 79 |
1 files changed, 41 insertions, 38 deletions
diff --git a/third_party/nix/src/libutil/util.hh b/third_party/nix/src/libutil/util.hh index 3c8d4bd70c06..7d10df50bf5b 100644 --- a/third_party/nix/src/libutil/util.hh +++ b/third_party/nix/src/libutil/util.hh @@ -32,7 +32,7 @@ struct Source; extern const std::string nativeSystem; /* Return an environment variable. */ -string getEnv(const string& key, const string& def = ""); +std::string getEnv(const std::string& key, const std::string& def = ""); /* Get the entire environment. */ std::map<std::string, std::string> getEnv(); @@ -59,7 +59,7 @@ Path dirOf(const Path& path); /* Return the base name of the given canonical path, i.e., everything following the final `/'. */ -string baseNameOf(const Path& path); +std::string baseNameOf(const Path& path); /* Check whether 'path' is a descendant of 'dir'. */ bool isInDir(const Path& path, const Path& dir); @@ -82,34 +82,34 @@ bool isLink(const Path& path); /* Read the contents of a directory. The entries `.' and `..' are removed. */ struct DirEntry { - string name; + std::string name; ino_t ino; unsigned char type; // one of DT_* - DirEntry(const string& name, ino_t ino, unsigned char type) + DirEntry(const std::string& name, ino_t ino, unsigned char type) : name(name), ino(ino), type(type) {} }; -typedef vector<DirEntry> DirEntries; +typedef std::vector<DirEntry> DirEntries; DirEntries readDirectory(const Path& path); unsigned char getFileType(const Path& path); /* Read the contents of a file into a string. */ -string readFile(int fd); -string readFile(const Path& path, bool drain = false); +std::string readFile(int fd); +std::string readFile(const Path& path, bool drain = false); void readFile(const Path& path, Sink& sink); /* Write a string to a file. */ -void writeFile(const Path& path, const string& s, mode_t mode = 0666); +void writeFile(const Path& path, const std::string& s, mode_t mode = 0666); void writeFile(const Path& path, Source& source, mode_t mode = 0666); /* Read a line from a file descriptor. */ -string readLine(int fd); +std::string readLine(int fd); /* Write a line to a file descriptor. */ -void writeLine(int fd, string s); +void writeLine(int fd, std::string s); /* Delete a path; i.e., in the case of a directory, it is deleted recursively. It's not an error if the path does not exist. The @@ -155,12 +155,12 @@ void replaceSymlink(const Path& target, const Path& link); void readFull(int fd, unsigned char* buf, size_t count); void writeFull(int fd, const unsigned char* buf, size_t count, bool allowInterrupts = true); -void writeFull(int fd, const string& s, bool allowInterrupts = true); +void writeFull(int fd, const std::string& s, bool allowInterrupts = true); -MakeError(EndOfFile, Error) +MakeError(EndOfFile, Error); - /* Read a file descriptor until EOF occurs. */ - string drainFD(int fd, bool block = true); +/* Read a file descriptor until EOF occurs. */ +std::string drainFD(int fd, bool block = true); void drainFD(int fd, Sink& sink, bool block = true); @@ -235,7 +235,7 @@ void killUser(uid_t uid); /* Fork a process that runs the given function, and return the child pid to the caller. */ struct ProcessOptions { - string errorPrefix = "error: "; + std::string errorPrefix = "error: "; bool dieWithParent = true; bool runExitHandlers = false; bool allowVfork = true; @@ -246,9 +246,9 @@ pid_t startProcess(std::function<void()> fun, /* Run a program and return its stdout in a string (i.e., like the shell backtick operator). */ -string runProgram(const Path& program, bool searchPath = false, - const Strings& args = Strings(), - const std::optional<std::string>& input = {}); +std::string runProgram(const Path& program, bool searchPath = false, + const Strings& args = Strings(), + const std::optional<std::string>& input = {}); struct RunOptions { std::optional<uid_t> uid; @@ -292,7 +292,7 @@ std::vector<char*> stringsToCharPtrs(const Strings& ss); /* Close all file descriptors except those listed in the given set. Good practice in child processes. */ -void closeMostFDs(const set<int>& exceptions); +void closeMostFDs(const std::set<int>& exceptions); /* Set the close-on-exec flag for the given file descriptor. */ void closeOnExec(int fd); @@ -311,36 +311,38 @@ void inline checkInterrupt() { if (_isInterrupted || (interruptCheck && interruptCheck())) _interrupted(); } -MakeError(Interrupted, BaseError) +MakeError(Interrupted, BaseError); - MakeError(FormatError, Error) +MakeError(FormatError, Error); - /* String tokenizer. */ - template <class C> - C tokenizeString(const string& s, const string& separators = " \t\n\r"); +/* String tokenizer. */ +template <class C> +C tokenizeString(const std::string& s, + const std::string& separators = " \t\n\r"); /* Concatenate the given strings with a separator between the elements. */ -string concatStringsSep(const string& sep, const Strings& ss); -string concatStringsSep(const string& sep, const StringSet& ss); +std::string concatStringsSep(const std::string& sep, const Strings& ss); +std::string concatStringsSep(const std::string& sep, const StringSet& ss); /* Remove whitespace from the start and end of a string. */ -string trim(const string& s, const string& whitespace = " \n\r\t"); +std::string trim(const std::string& s, + const std::string& whitespace = " \n\r\t"); /* Replace all occurrences of a string inside another string. */ -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); /* Convert the exit status of a child as returned by wait() into an error string. */ -string statusToString(int status); +std::string statusToString(int status); bool statusOk(int status); /* Parse a string into an integer. */ template <class N> -bool string2Int(const string& s, N& n) { - if (string(s, 0, 1) == "-" && !std::numeric_limits<N>::is_signed) +bool string2Int(const std::string& s, N& n) { + if (std::string(s, 0, 1) == "-" && !std::numeric_limits<N>::is_signed) return false; std::istringstream str(s); str >> n; @@ -349,17 +351,17 @@ bool string2Int(const string& s, N& n) { /* Parse a string into a float. */ template <class N> -bool string2Float(const string& s, N& n) { +bool string2Float(const std::string& s, N& n) { std::istringstream str(s); str >> n; return str && str.get() == EOF; } /* Return true iff `s' starts with `prefix'. */ -bool hasPrefix(const string& s, const string& prefix); +bool hasPrefix(const std::string& s, const std::string& prefix); /* Return true iff `s' ends in `suffix'. */ -bool hasSuffix(const string& s, const string& suffix); +bool hasSuffix(const std::string& s, const std::string& suffix); /* Convert a string to lower case. */ std::string toLower(const std::string& s); @@ -389,13 +391,14 @@ std::string filterANSIEscapes( unsigned int width = std::numeric_limits<unsigned int>::max()); /* Base64 encoding/decoding. */ -string base64Encode(const string& s); -string base64Decode(const string& s); +std::string base64Encode(const std::string& s); +std::string base64Decode(const std::string& s); /* Get a value for the specified key from an associate container, or a default value if the key doesn't exist. */ template <class T> -string get(const T& map, const string& key, const string& def = "") { +std::string get(const T& map, const std::string& key, + const std::string& def = "") { auto i = map.find(key); return i == map.end() ? def : i->second; } |