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ad3d29fb53
Send all output after manifest parsing is finished to the Status interface, so that when status frontends are added they can handle build messages.
134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
// Copyright 2011 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef NINJA_UTIL_H_
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#define NINJA_UTIL_H_
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#ifdef _WIN32
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#include "win32port.h"
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#else
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#include <stdint.h>
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#endif
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#include <stdarg.h>
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#include <string>
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#include <vector>
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#ifdef _MSC_VER
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#define NORETURN __declspec(noreturn)
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#else
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#define NORETURN __attribute__((noreturn))
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#endif
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/// Log a fatal message and exit.
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NORETURN void Fatal(const char* msg, ...);
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// Have a generic fall-through for different versions of C/C++.
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#if defined(__cplusplus) && __cplusplus >= 201703L
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#define NINJA_FALLTHROUGH [[fallthrough]]
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#elif defined(__cplusplus) && __cplusplus >= 201103L && defined(__clang__)
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#define NINJA_FALLTHROUGH [[clang::fallthrough]]
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#elif defined(__cplusplus) && __cplusplus >= 201103L && defined(__GNUC__) && \
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__GNUC__ >= 7
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#define NINJA_FALLTHROUGH [[gnu::fallthrough]]
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#elif defined(__GNUC__) && __GNUC__ >= 7 // gcc 7
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#define NINJA_FALLTHROUGH __attribute__ ((fallthrough))
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#else // C++11 on gcc 6, and all other cases
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#define NINJA_FALLTHROUGH
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#endif
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/// Log a warning message.
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void Warning(const char* msg, ...);
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void Warning(const char* msg, va_list ap);
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/// Log an error message.
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void Error(const char* msg, ...);
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void Error(const char* msg, va_list ap);
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/// Log an informational message.
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void Info(const char* msg, ...);
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void Info(const char* msg, va_list ap);
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/// Canonicalize a path like "foo/../bar.h" into just "bar.h".
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/// |slash_bits| has bits set starting from lowest for a backslash that was
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/// normalized to a forward slash. (only used on Windows)
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bool CanonicalizePath(std::string* path, uint64_t* slash_bits,
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std::string* err);
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bool CanonicalizePath(char* path, size_t* len, uint64_t* slash_bits,
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std::string* err);
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/// Appends |input| to |*result|, escaping according to the whims of either
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/// Bash, or Win32's CommandLineToArgvW().
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/// Appends the string directly to |result| without modification if we can
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/// determine that it contains no problematic characters.
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void GetShellEscapedString(const std::string& input, std::string* result);
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void GetWin32EscapedString(const std::string& input, std::string* result);
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/// Read a file to a string (in text mode: with CRLF conversion
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/// on Windows).
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/// Returns -errno and fills in \a err on error.
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int ReadFile(const std::string& path, std::string* contents, std::string* err);
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/// Mark a file descriptor to not be inherited on exec()s.
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void SetCloseOnExec(int fd);
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/// Given a misspelled string and a list of correct spellings, returns
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/// the closest match or NULL if there is no close enough match.
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const char* SpellcheckStringV(const std::string& text,
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const std::vector<const char*>& words);
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/// Like SpellcheckStringV, but takes a NULL-terminated list.
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const char* SpellcheckString(const char* text, ...);
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bool islatinalpha(int c);
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/// Removes all Ansi escape codes (http://www.termsys.demon.co.uk/vtansi.htm).
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std::string StripAnsiEscapeCodes(const std::string& in);
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/// @return the number of processors on the machine. Useful for an initial
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/// guess for how many jobs to run in parallel. @return 0 on error.
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int GetProcessorCount();
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/// @return the load average of the machine. A negative value is returned
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/// on error.
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double GetLoadAverage();
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/// Elide the given string @a str with '...' in the middle if the length
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/// exceeds @a width.
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std::string ElideMiddle(const std::string& str, size_t width);
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/// Truncates a file to the given size.
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bool Truncate(const std::string& path, size_t size, std::string* err);
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#ifdef _MSC_VER
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#define snprintf _snprintf
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#define fileno _fileno
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#define unlink _unlink
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#define chdir _chdir
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#define strtoull _strtoui64
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#define getcwd _getcwd
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#define PATH_MAX _MAX_PATH
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#endif
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#ifdef _WIN32
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/// Convert the value returned by GetLastError() into a string.
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std::string GetLastErrorString();
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/// Calls Fatal() with a function name and GetLastErrorString.
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NORETURN void Win32Fatal(const char* function, const char* hint = NULL);
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#endif
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#endif // NINJA_UTIL_H_
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