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cmake/Source/cmcmd.cxx

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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmcmd.h"
#include <functional>
#include <iterator>
#include <cm/optional>
#include <cmext/algorithm>
#include <cm3p/uv.h>
#include <fcntl.h>
#include "cm_fileno.hxx"
#include "cmCommandLineArgument.h"
#include "cmConsoleBuf.h"
#include "cmCryptoHash.h"
#include "cmDuration.h"
#include "cmGlobalGenerator.h"
#include "cmList.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmQtAutoMocUic.h"
#include "cmQtAutoRcc.h"
#include "cmRange.h"
#include "cmState.h"
#include "cmStateDirectory.h"
#include "cmStateSnapshot.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTransformDepfile.h"
#include "cmUVProcessChain.h"
#include "cmUVStream.h"
#include "cmUtils.hxx"
#include "cmValue.h"
#include "cmVersion.h"
#include "cmake.h"
#if !defined(CMAKE_BOOTSTRAP)
# include "cmDependsFortran.h" // For -E cmake_copy_f90_mod callback.
# include "cmFileTime.h"
# include "bindexplib.h"
#endif
#if !defined(CMAKE_BOOTSTRAP) || defined(CMAKE_BOOTSTRAP_MAKEFILES)
# include <algorithm>
# include "cmCMakePath.h"
# include "cmProcessTools.h"
#endif
#if !defined(CMAKE_BOOTSTRAP) && defined(_WIN32) && !defined(__CYGWIN__)
# include "cmVisualStudioWCEPlatformParser.h"
#endif
#include <array>
#include <chrono>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <memory>
#include <sstream>
#include <utility>
#ifdef _WIN32
# include <fcntl.h> // for _O_BINARY
# include <io.h> // for _setmode
#endif
#include <cm/string_view>
#include "cmsys/Directory.hxx"
#include "cmsys/FStream.hxx"
#include "cmsys/RegularExpression.hxx"
#include "cmsys/Terminal.h"
int cmcmd_cmake_ninja_depends(std::vector<std::string>::const_iterator argBeg,
std::vector<std::string>::const_iterator argEnd);
int cmcmd_cmake_ninja_dyndep(std::vector<std::string>::const_iterator argBeg,
std::vector<std::string>::const_iterator argEnd);
namespace {
void CMakeCommandUsage(std::string const& program)
{
std::ostringstream errorStream;
#ifndef CMAKE_BOOTSTRAP
/* clang-format off */
errorStream
<< "cmake version " << cmVersion::GetCMakeVersion() << "\n";
/* clang-format on */
#else
/* clang-format off */
errorStream
<< "cmake bootstrap\n";
/* clang-format on */
#endif
// If you add new commands, change here,
// and in cmakemain.cxx in the options table
/* clang-format off */
errorStream
<< "Usage: " << program << " -E <command> [arguments...]\n"
<< "Available commands: \n"
<< " capabilities - Report capabilities built into cmake "
"in JSON format\n"
<< " cat [--] <files>... - concat the files and print them to the "
"standard output\n"
<< " chdir dir cmd [args...] - run command in a given directory\n"
<< " compare_files [--ignore-eol] file1 file2\n"
<< " - check if file1 is same as file2\n"
<< " copy <file>... destination - copy files to destination "
"(either file or directory)\n"
<< " copy_directory <dir>... destination - copy content of <dir>... "
"directories to 'destination' directory\n"
<< " copy_directory_if_different <dir>... destination - copy changed content of <dir>... "
"directories to 'destination' directory\n"
<< " copy_if_different <file>... destination - copy files if it has "
"changed\n"
<< " echo [<string>...] - displays arguments as text\n"
<< " echo_append [<string>...] - displays arguments as text but no new "
"line\n"
<< " env [--unset=NAME ...] [NAME=VALUE ...] [--] <command> [<arg>...]\n"
<< " - run command in a modified environment\n"
<< " environment - display the current environment\n"
<< " make_directory <dir>... - create parent and <dir> directories\n"
<< " md5sum <file>... - create MD5 checksum of files\n"
<< " sha1sum <file>... - create SHA1 checksum of files\n"
<< " sha224sum <file>... - create SHA224 checksum of files\n"
<< " sha256sum <file>... - create SHA256 checksum of files\n"
<< " sha384sum <file>... - create SHA384 checksum of files\n"
<< " sha512sum <file>... - create SHA512 checksum of files\n"
<< " remove [-f] <file>... - remove the file(s), use -f to force "
"it (deprecated: use rm instead)\n"
<< " remove_directory <dir>... - remove directories and their contents (deprecated: use rm instead)\n"
<< " rename oldname newname - rename a file or directory "
"(on one volume)\n"
<< " rm [-rRf] [--] <file/dir>... - remove files or directories, use -f "
"to force it, r or R to remove directories and their contents "
"recursively\n"
<< " sleep <number>... - sleep for given number of seconds\n"
<< " tar [cxt][vf][zjJ] file.tar [file/dir1 file/dir2 ...]\n"
<< " - create or extract a tar or zip archive\n"
<< " time command [args...] - run command and display elapsed time\n"
<< " touch <file>... - touch a <file>.\n"
<< " touch_nocreate <file>... - touch a <file> but do not create it.\n"
<< " create_symlink old new - create a symbolic link new -> old\n"
<< " create_hardlink old new - create a hard link new -> old\n"
<< " true - do nothing with an exit code of 0\n"
<< " false - do nothing with an exit code of 1\n"
#if defined(_WIN32) && !defined(__CYGWIN__)
<< "Available on Windows only:\n"
<< " delete_regv key - delete registry value\n"
<< " env_vs8_wince sdkname - displays a batch file which sets the "
"environment for the provided Windows CE SDK installed in VS2005\n"
<< " env_vs9_wince sdkname - displays a batch file which sets the "
"environment for the provided Windows CE SDK installed in VS2008\n"
<< " write_regv key value - write registry value\n"
#endif
;
/* clang-format on */
cmSystemTools::Error(errorStream.str());
}
bool cmTarFilesFrom(std::string const& file, std::vector<std::string>& files)
{
if (cmSystemTools::FileIsDirectory(file)) {
std::ostringstream e;
e << "-E tar --files-from= file '" << file << "' is a directory";
cmSystemTools::Error(e.str());
return false;
}
cmsys::ifstream fin(file.c_str());
if (!fin) {
std::ostringstream e;
e << "-E tar --files-from= file '" << file << "' not found";
cmSystemTools::Error(e.str());
return false;
}
std::string line;
while (cmSystemTools::GetLineFromStream(fin, line)) {
if (line.empty()) {
continue;
}
if (cmHasLiteralPrefix(line, "--add-file=")) {
files.push_back(line.substr(11));
} else if (cmHasLiteralPrefix(line, "-")) {
std::ostringstream e;
e << "-E tar --files-from='" << file << "' file invalid line:\n"
<< line << "\n";
cmSystemTools::Error(e.str());
return false;
} else {
files.push_back(line);
}
}
return true;
}
void cmCatFile(const std::string& fileToAppend)
{
#ifdef _WIN32
_setmode(fileno(stdout), _O_BINARY);
#endif
cmsys::ifstream source(fileToAppend.c_str(),
(std::ios::binary | std::ios::in));
std::cout << source.rdbuf();
}
bool cmRemoveDirectory(const std::string& dir, bool recursive = true)
{
if (cmSystemTools::FileIsSymlink(dir)) {
if (!cmSystemTools::RemoveFile(dir)) {
std::cerr << "Error removing directory symlink \"" << dir << "\".\n";
return false;
}
} else if (!recursive) {
std::cerr << "Error removing directory \"" << dir
<< "\" without recursive option.\n";
return false;
} else if (!cmSystemTools::RemoveADirectory(dir)) {
std::cerr << "Error removing directory \"" << dir << "\".\n";
return false;
}
return true;
}
#if !defined(CMAKE_BOOTSTRAP) || defined(CMAKE_BOOTSTRAP_MAKEFILES)
class CLIncludeParser : public cmProcessTools::LineParser
{
public:
CLIncludeParser(cm::string_view includePrefix, cmsys::ofstream& depFile,
std::ostream& output)
: IncludePrefix(includePrefix)
, DepFile(depFile)
, Output(output)
{
}
private:
bool ProcessLine() override
{
if (cmHasPrefix(this->Line, this->IncludePrefix)) {
auto path =
cmTrimWhitespace(this->Line.c_str() + this->IncludePrefix.size());
cmSystemTools::ConvertToLongPath(path);
this->DepFile << cmCMakePath(path).GenericString() << std::endl;
} else {
this->Output << this->Line << std::endl << std::flush;
}
return true;
}
cm::string_view IncludePrefix;
cmsys::ofstream& DepFile;
std::ostream& Output;
};
class CLOutputLogger : public cmProcessTools::OutputLogger
{
public:
CLOutputLogger(std::ostream& log)
: cmProcessTools::OutputLogger(log)
{
}
bool ProcessLine() override
{
*this->Log << std::flush;
return true;
}
};
int CLCompileAndDependencies(const std::vector<std::string>& args)
{
std::string depFile;
std::string currentBinaryDir;
std::string filterPrefix;
std::vector<std::string> command;
for (auto it = args.cbegin() + 2; it != args.cend(); it++) {
if (cmHasLiteralPrefix(*it, "--dep-file=")) {
depFile = it->substr(11);
} else if (cmHasLiteralPrefix(*it, "--working-dir=")) {
currentBinaryDir = it->substr(14);
} else if (cmHasLiteralPrefix(*it, "--filter-prefix=")) {
filterPrefix = it->substr(16);
} else if (*it == "--") {
command.insert(command.begin(), ++it, args.cend());
break;
} else {
return 1;
}
}
cmUVProcessChainBuilder builder;
builder.AddCommand(command).SetWorkingDirectory(currentBinaryDir);
cmsys::ofstream fout(depFile.c_str());
if (!fout) {
return 3;
}
CLIncludeParser includeParser(filterPrefix, fout, std::cout);
CLOutputLogger errLogger(std::cerr);
// Start the process.
auto result =
cmProcessTools::RunProcess(builder, &includeParser, &errLogger);
auto const& subStatus = result.front();
int status = 0;
// handle status of process
if (subStatus.SpawnResult != 0) {
status = 2;
} else if (subStatus.TermSignal != 0) {
status = 1;
} else {
status = static_cast<int>(subStatus.ExitStatus);
}
if (status != 0) {
// remove the dependencies file because potentially invalid
fout.close();
cmSystemTools::RemoveFile(depFile);
}
return status;
}
#endif
int HandleIWYU(const std::string& runCmd, const std::string& /* sourceFile */,
const std::vector<std::string>& orig_cmd)
{
// Construct the iwyu command line by taking what was given
// and adding all the arguments we give to the compiler.
cmList iwyu_cmd{ runCmd, cmList::EmptyElements::Yes };
cm::append(iwyu_cmd, orig_cmd.begin() + 1, orig_cmd.end());
// Run the iwyu command line. Capture its stderr and hide its stdout.
std::string stdErr;
int ret;
if (!cmSystemTools::RunSingleCommand(iwyu_cmd, nullptr, &stdErr, &ret,
nullptr, cmSystemTools::OUTPUT_NONE)) {
std::cerr << "Error running '" << iwyu_cmd[0] << "': " << stdErr << "\n";
return 1;
}
// Warn if iwyu reported anything.
if (stdErr.find("should remove these lines:") != std::string::npos ||
stdErr.find("should add these lines:") != std::string::npos) {
std::cerr << "Warning: include-what-you-use reported diagnostics:\n"
<< stdErr << "\n";
}
// Older versions of iwyu always returned a non-zero exit code,
// so ignore it unless the user has enabled errors.
auto has_error_opt = std::find_if(
iwyu_cmd.cbegin(), iwyu_cmd.cend(),
[](std::string const& opt) { return cmHasLiteralPrefix(opt, "--error"); });
bool errors_enabled = has_error_opt != iwyu_cmd.cend() &&
has_error_opt != iwyu_cmd.cbegin() &&
*std::prev(has_error_opt) == "-Xiwyu";
return errors_enabled ? ret : 0;
}
int HandleTidy(const std::string& runCmd, const std::string& sourceFile,
const std::vector<std::string>& orig_cmd)
{
cmList tidy_cmd{ runCmd, cmList::EmptyElements::Yes };
tidy_cmd.push_back(sourceFile);
for (auto const& arg : tidy_cmd) {
if (cmHasLiteralPrefix(arg, "--export-fixes=")) {
cmSystemTools::RemoveFile(arg.substr(cmStrLen("--export-fixes=")));
}
}
// clang-tidy supports working out the compile commands from a
// compile_commands.json file in a directory given by a "-p" option, or by
// passing the compiler command line arguments after --. When the latter
// strategy is used and the build is using a compiler other than the system
// default, clang-tidy may erroneously use the system default compiler's
// headers instead of those from the custom compiler. It doesn't do that if
// given a compile_commands.json to work with instead, so prefer to use the
// compile_commands.json file when "-p" is present.
if (!cm::contains(tidy_cmd.cbegin(), tidy_cmd.cend() - 1, "-p")) {
// Construct the clang-tidy command line by taking what was given
// and adding our compiler command line. The clang-tidy tool will
// automatically skip over the compiler itself and extract the
// options. If the compiler is a custom compiler, clang-tidy might
// not correctly handle that with this approach.
tidy_cmd.emplace_back("--");
cm::append(tidy_cmd, orig_cmd);
}
// Run the tidy command line. Capture its stdout and hide its stderr.
int ret;
std::string stdOut;
std::string stdErr;
if (!cmSystemTools::RunSingleCommand(tidy_cmd, &stdOut, &stdErr, &ret,
nullptr, cmSystemTools::OUTPUT_NONE)) {
std::cerr << "Error running '" << tidy_cmd[0] << "': " << stdErr << "\n";
return 1;
}
// Output the stdout from clang-tidy to stderr
std::cerr << stdOut;
// If clang-tidy exited with an error do the same.
if (ret != 0) {
std::cerr << stdErr;
}
return ret;
}
int HandleLWYU(const std::string& runCmd, const std::string& sourceFile,
const std::vector<std::string>&)
{
// Construct the ldd -r -u (link what you use lwyu) command line
// ldd -u -r lwuy target
cmList lwyu_cmd{ runCmd, cmList::EmptyElements::Yes };
lwyu_cmd.push_back(sourceFile);
// Run the lwyu check command line, currently ldd is expected.
// Capture its stdout and hide its stderr.
// Ignore its return code because the tool always returns non-zero
// if there are any warnings, but we just want to warn.
std::string stdOut;
std::string stdErr;
int ret;
if (!cmSystemTools::RunSingleCommand(lwyu_cmd, &stdOut, &stdErr, &ret,
nullptr, cmSystemTools::OUTPUT_NONE)) {
std::cerr << "Error running '" << lwyu_cmd[0] << "': " << stdErr << "\n";
return 1;
}
// Output the stdout from ldd -r -u to stderr
// Warn if lwyu reported anything.
if (stdOut.find("Unused direct dependencies:") != std::string::npos) {
std::cerr << "Warning: " << stdOut;
}
return 0;
}
int HandleCppLint(const std::string& runCmd, const std::string& sourceFile,
const std::vector<std::string>&)
{
// Construct the cpplint command line.
cmList cpplint_cmd{ runCmd, cmList::EmptyElements::Yes };
cpplint_cmd.push_back(sourceFile);
// Run the cpplint command line. Capture its output.
std::string stdOut;
int ret;
if (!cmSystemTools::RunSingleCommand(cpplint_cmd, &stdOut, &stdOut, &ret,
nullptr, cmSystemTools::OUTPUT_NONE)) {
std::cerr << "Error running '" << cpplint_cmd[0] << "': " << stdOut
<< "\n";
return 1;
}
if (!stdOut.empty()) {
std::cerr << "Warning: cpplint diagnostics:\n";
// Output the output from cpplint to stderr
std::cerr << stdOut;
}
// always return 0 so the build can continue as cpplint returns non-zero
// for any warning
return 0;
}
int HandleCppCheck(const std::string& runCmd, const std::string& sourceFile,
const std::vector<std::string>& orig_cmd)
{
// Construct the cpplint command line.
cmList cppcheck_cmd{ runCmd, cmList::EmptyElements::Yes };
// extract all the -D, -U, and -I options from the compile line
for (auto const& opt : orig_cmd) {
if (opt.size() > 2) {
if ((opt[0] == '-') &&
((opt[1] == 'D') || (opt[1] == 'I') || (opt[1] == 'U'))) {
cppcheck_cmd.push_back(opt);
// convert cl / options to - options if needed
#if defined(_WIN32)
} else if ((opt[0] == '/') &&
((opt[1] == 'D') || (opt[1] == 'I') || (opt[1] == 'U'))) {
std::string optcopy = opt;
optcopy[0] = '-';
cppcheck_cmd.push_back(optcopy);
#endif
}
}
}
// add the source file
cppcheck_cmd.push_back(sourceFile);
// Run the cpplint command line. Capture its output.
std::string stdOut;
std::string stdErr;
int ret;
if (!cmSystemTools::RunSingleCommand(cppcheck_cmd, &stdOut, &stdErr, &ret,
nullptr, cmSystemTools::OUTPUT_NONE)) {
std::cerr << "Error running '" << cppcheck_cmd[0] << "': " << stdOut
<< "\n";
return 1;
}
std::cerr << stdOut;
// Output the output from cpplint to stderr
if (stdErr.find("(error)") != std::string::npos ||
stdErr.find("(warning)") != std::string::npos ||
stdErr.find("(style)") != std::string::npos ||
stdErr.find("(performance)") != std::string::npos ||
stdErr.find("(portability)") != std::string::npos ||
stdErr.find("(information)") != std::string::npos) {
if (ret == 0) {
std::cerr << "Warning: cppcheck reported diagnostics:\n";
} else {
std::cerr << "Error: cppcheck reported failure:\n";
}
}
std::cerr << stdErr;
return ret;
}
using CoCompileHandler = int (*)(const std::string&, const std::string&,
const std::vector<std::string>&);
struct CoCompiler
{
const char* Option;
CoCompileHandler Handler;
bool NoOriginalCommand;
};
const std::array<CoCompiler, 5> CoCompilers = {
{ // Table of options and handlers.
{ "--cppcheck=", HandleCppCheck, false },
{ "--cpplint=", HandleCppLint, false },
{ "--iwyu=", HandleIWYU, false },
{ "--lwyu=", HandleLWYU, true },
{ "--tidy=", HandleTidy, false } }
};
struct CoCompileJob
{
std::string Command;
CoCompileHandler Handler;
};
}
// called when args[0] == "__run_co_compile"
int cmcmd::HandleCoCompileCommands(std::vector<std::string> const& args)
{
std::vector<CoCompileJob> jobs;
std::string sourceFile; // store --source=
cmList launchers; // store --launcher=
// Default is to run the original command found after -- if the option
// does not need to do that, it should be specified here, currently only
// lwyu does that.
bool runOriginalCmd = true;
std::vector<std::string> orig_cmd;
bool doing_options = true;
for (std::string const& arg : cmMakeRange(args).advance(2)) {
// if the arg is -- then the rest of the args after
// go into orig_cmd
if (arg == "--") {
doing_options = false;
} else if (doing_options) {
bool optionFound = false;
for (CoCompiler const& cc : CoCompilers) {
size_t optionLen = strlen(cc.Option);
if (arg.compare(0, optionLen, cc.Option) == 0) {
optionFound = true;
CoCompileJob job;
job.Command = arg.substr(optionLen);
job.Handler = cc.Handler;
jobs.push_back(std::move(job));
if (cc.NoOriginalCommand) {
runOriginalCmd = false;
}
}
}
if (!optionFound) {
if (cmHasLiteralPrefix(arg, "--source=")) {
sourceFile = arg.substr(9);
} else if (cmHasLiteralPrefix(arg, "--launcher=")) {
launchers.append(arg.substr(11), cmList::EmptyElements::Yes);
} else {
// if it was not a co-compiler or --source/--launcher then error
std::cerr << "__run_co_compile given unknown argument: " << arg
<< "\n";
return 1;
}
}
} else { // if not doing_options then push to orig_cmd
orig_cmd.push_back(arg);
}
}
if (jobs.empty()) {
std::cerr << "__run_co_compile missing command to run. "
"Looking for one or more of the following:\n";
for (CoCompiler const& cc : CoCompilers) {
std::cerr << cc.Option << "\n";
}
return 1;
}
if (runOriginalCmd && orig_cmd.empty()) {
std::cerr << "__run_co_compile missing compile command after --\n";
return 1;
}
for (CoCompileJob const& job : jobs) {
// call the command handler here
int ret = job.Handler(job.Command, sourceFile, orig_cmd);
// if the command returns non-zero then return and fail.
// for commands that do not want to break the build, they should return
// 0 no matter what.
if (ret != 0) {
return ret;
}
}
// if there is no original command to run return now
if (!runOriginalCmd) {
return 0;
}
// Prepend launcher argument(s), if any
if (!launchers.empty()) {
orig_cmd.insert(orig_cmd.begin(), launchers.begin(), launchers.end());
}
// Now run the real compiler command and return its result value
int ret;
if (!cmSystemTools::RunSingleCommand(orig_cmd, nullptr, nullptr, &ret,
nullptr,
cmSystemTools::OUTPUT_PASSTHROUGH)) {
std::cerr << "Error running '" << orig_cmd[0] << "'\n";
return 1;
}
// return the return value from the original compiler command
return ret;
}
int cmcmd::ExecuteCMakeCommand(std::vector<std::string> const& args,
std::unique_ptr<cmConsoleBuf> consoleBuf)
{
// IF YOU ADD A NEW COMMAND, DOCUMENT IT ABOVE and in cmakemain.cxx
if (args.size() > 1) {
// Copy file
if (args[1] == "copy" && args.size() > 3) {
using CommandArgument =
cmCommandLineArgument<bool(const std::string& value)>;
cm::optional<std::string> targetArg;
std::vector<CommandArgument> argParsers{
{ "-t", CommandArgument::Values::One,
CommandArgument::setToValue(targetArg) },
};
std::vector<std::string> files;
for (decltype(args.size()) i = 2; i < args.size(); i++) {
const std::string& arg = args[i];
bool matched = false;
for (auto const& m : argParsers) {
if (m.matches(arg)) {
matched = true;
if (m.parse(arg, i, args)) {
break;
}
return 1; // failed to parse
}
}
if (!matched) {
files.push_back(arg);
}
}
// If multiple source files specified,
// then destination must be directory
if (files.size() > 2 && !targetArg) {
targetArg = files.back();
files.pop_back();
}
if (targetArg && (!cmSystemTools::FileIsDirectory(*targetArg))) {
std::cerr << "Error: Target (for copy command) \"" << *targetArg
<< "\" is not a directory.\n";
return 1;
}
if (!targetArg) {
if (files.size() < 2) {
std::cerr
<< "Error: No files or target specified (for copy command).\n";
return 1;
}
targetArg = files.back();
files.pop_back();
}
// If error occurs we want to continue copying next files.
bool return_value = false;
for (auto const& file : files) {
if (!cmsys::SystemTools::CopyFileAlways(file, *targetArg)) {
std::cerr << "Error copying file \"" << file << "\" to \""
<< *targetArg << "\".\n";
return_value = true;
}
}
return return_value;
}
// Copy file if different.
if (args[1] == "copy_if_different" && args.size() > 3) {
// If multiple source files specified,
// then destination must be directory
if ((args.size() > 4) &&
(!cmSystemTools::FileIsDirectory(args.back()))) {
std::cerr << "Error: Target (for copy_if_different command) \""
<< args.back() << "\" is not a directory.\n";
return 1;
}
// If error occurs we want to continue copying next files.
bool return_value = false;
for (auto const& arg : cmMakeRange(args).advance(2).retreat(1)) {
if (!cmSystemTools::CopyFileIfDifferent(arg, args.back())) {
std::cerr << "Error copying file (if different) from \"" << arg
<< "\" to \"" << args.back() << "\".\n";
return_value = true;
}
}
return return_value;
}
// Copy directory contents
if ((args[1] == "copy_directory" ||
args[1] == "copy_directory_if_different") &&
args.size() > 3) {
// If error occurs we want to continue copying next files.
bool return_value = false;
const bool copy_always = (args[1] == "copy_directory");
for (auto const& arg : cmMakeRange(args).advance(2).retreat(1)) {
if (!cmSystemTools::CopyADirectory(arg, args.back(), copy_always)) {
std::cerr << "Error copying directory from \"" << arg << "\" to \""
<< args.back() << "\".\n";
return_value = true;
}
}
return return_value;
}
// Rename a file or directory
if (args[1] == "rename" && args.size() == 4) {
if (!cmSystemTools::RenameFile(args[2], args[3])) {
std::string e = cmSystemTools::GetLastSystemError();
std::cerr << "Error renaming from \"" << args[2] << "\" to \""
<< args[3] << "\": " << e << "\n";
return 1;
}
return 0;
}
// Compare files
if (args[1] == "compare_files" && (args.size() == 4 || args.size() == 5)) {
bool filesDiffer;
if (args.size() == 4) {
filesDiffer = cmSystemTools::FilesDiffer(args[2], args[3]);
} else if (args[2] == "--ignore-eol") {
filesDiffer = cmsys::SystemTools::TextFilesDiffer(args[3], args[4]);
} else {
CMakeCommandUsage(args[0]);
return 2;
}
if (filesDiffer) {
return 1;
}
return 0;
}
#if !defined(CMAKE_BOOTSTRAP)
if (args[1] == "__create_def") {
if (args.size() < 4) {
std::cerr << "__create_def Usage: -E __create_def outfile.def "
"objlistfile [--nm=nm-path]\n";
return 1;
}
cmsys::ifstream fin(args[3].c_str(), std::ios::in | std::ios::binary);
if (!fin) {
std::cerr << "could not open object list file: " << args[3] << "\n";
return 1;
}
std::vector<std::string> files;
{
std::string file;
cmFileTime outTime;
bool outValid = outTime.Load(args[2]);
while (cmSystemTools::GetLineFromStream(fin, file)) {
files.push_back(file);
if (outValid) {
cmFileTime inTime;
outValid = inTime.Load(file) && inTime.Older(outTime);
}
}
if (outValid) {
// The def file already exists and all input files are older than
// the existing def file.
return 0;
}
}
FILE* fout = cmsys::SystemTools::Fopen(args[2], "w+");
if (!fout) {
std::cerr << "could not open output .def file: " << args[2] << "\n";
return 1;
}
bindexplib deffile;
if (args.size() >= 5) {
std::string const& a = args[4];
if (cmHasLiteralPrefix(a, "--nm=")) {
deffile.SetNmPath(a.substr(5));
} else {
std::cerr << "unknown argument: " << a << "\n";
}
}
for (std::string const& file : files) {
std::string const& ext = cmSystemTools::GetFilenameLastExtension(file);
if (cmSystemTools::LowerCase(ext) == ".def") {
if (!deffile.AddDefinitionFile(file.c_str())) {
return 1;
}
} else {
if (!deffile.AddObjectFile(file.c_str())) {
return 1;
}
}
}
deffile.WriteFile(fout);
fclose(fout);
return 0;
}
#endif
if (args[1] == "__run_co_compile") {
return cmcmd::HandleCoCompileCommands(args);
}
// Echo string
if (args[1] == "echo") {
std::cout << cmJoin(cmMakeRange(args).advance(2), " ") << std::endl;
return 0;
}
// Echo string no new line
if (args[1] == "echo_append") {
std::cout << cmJoin(cmMakeRange(args).advance(2), " ");
return 0;
}
if (args[1] == "env") {
#ifndef CMAKE_BOOTSTRAP
cmSystemTools::EnvDiff env;
#endif
auto ai = args.cbegin() + 2;
auto ae = args.cend();
for (; ai != ae; ++ai) {
std::string const& a = *ai;
if (a == "--") {
// Stop parsing options/environment variables; the next argument
// should be the command.
++ai;
break;
}
if (cmHasLiteralPrefix(a, "--unset=")) {
// Unset environment variable.
#ifdef CMAKE_BOOTSTRAP
cmSystemTools::UnPutEnv(a.substr(8));
#else
env.UnPutEnv(a.substr(8));
#endif
} else if (a == "--modify") {
#ifdef CMAKE_BOOTSTRAP
std::cerr
<< "cmake -E env: --modify not available during bootstrapping\n";
return 1;
#else
if (++ai == ae) {
std::cerr << "cmake -E env: --modify missing a parameter\n";
return 1;
}
std::string const& op = *ai;
if (!env.ParseOperation(op)) {
std::cerr << "cmake -E env: invalid parameter to --modify: " << op
<< '\n';
return 1;
}
#endif
} else if (!a.empty() && a[0] == '-') {
// Environment variable and command names cannot start in '-',
// so this must be an unknown option.
std::cerr << "cmake -E env: unknown option '" << a << "'\n";
return 1;
} else if (a.find('=') != std::string::npos) {
// Set environment variable.
#ifdef CMAKE_BOOTSTRAP
cmSystemTools::PutEnv(a);
#else
env.PutEnv(a);
#endif
} else {
// This is the beginning of the command.
break;
}
}
if (ai == ae) {
std::cerr << "cmake -E env: no command given\n";
return 1;
}
#ifndef CMAKE_BOOTSTRAP
env.ApplyToCurrentEnv();
#endif
// Execute command from remaining arguments.
std::vector<std::string> cmd(ai, ae);
int retval;
if (cmSystemTools::RunSingleCommand(cmd, nullptr, nullptr, &retval,
nullptr,
cmSystemTools::OUTPUT_PASSTHROUGH)) {
return retval;
}
return 1;
}
#if !defined(CMAKE_BOOTSTRAP)
if (args[1] == "environment") {
for (auto const& env : cmSystemTools::GetEnvironmentVariables()) {
std::cout << env << std::endl;
}
return 0;
}
#endif
if (args[1] == "make_directory" && args.size() > 2) {
// If an error occurs, we want to continue making directories.
bool return_value = false;
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (!cmSystemTools::MakeDirectory(arg)) {
std::cerr << "Error creating directory \"" << arg << "\".\n";
return_value = true;
}
}
return return_value;
}
if (args[1] == "remove_directory" && args.size() > 2) {
// If an error occurs, we want to continue removing directories.
bool return_value = false;
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (cmSystemTools::FileIsDirectory(arg)) {
if (!cmRemoveDirectory(arg)) {
return_value = true;
}
}
}
return return_value;
}
// Remove file
if (args[1] == "remove" && args.size() > 2) {
bool force = false;
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (arg == "\\-f" || arg == "-f") {
force = true;
} else {
// Complain if the file could not be removed, still exists,
// and the -f option was not given.
if (!cmSystemTools::RemoveFile(arg) && !force &&
cmSystemTools::FileExists(arg)) {
return 1;
}
}
}
return 0;
}
// Remove directories or files with rm
if (args[1] == "rm" && args.size() > 2) {
// If an error occurs, we want to continue removing the remaining
// files/directories.
int return_value = 0;
bool force = false;
bool recursive = false;
bool doing_options = true;
bool at_least_one_file = false;
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (doing_options && cmHasLiteralPrefix(arg, "-")) {
if (arg == "--") {
doing_options = false;
}
if (arg.find('f') != std::string::npos) {
force = true;
}
if (arg.find_first_of("rR") != std::string::npos) {
recursive = true;
}
if (arg.find_first_not_of("-frR") != std::string::npos) {
cmSystemTools::Error("Unknown -E rm argument: " + arg);
return 1;
}
} else {
if (arg.empty()) {
continue;
}
at_least_one_file = true;
// Complain if the -f option was not given and
// either file does not exist or
// file could not be removed and still exists
bool file_exists_or_forced_remove =
cmSystemTools::PathExists(arg) || force;
if (cmSystemTools::FileIsDirectory(arg)) {
if (!cmRemoveDirectory(arg, recursive)) {
return_value = 1;
}
} else if ((!file_exists_or_forced_remove) ||
(!cmSystemTools::RemoveFile(arg) &&
cmSystemTools::FileExists(arg))) {
if (!file_exists_or_forced_remove) {
cmSystemTools::Error(
"File to remove does not exist and force is not set: " + arg);
} else {
cmSystemTools::Error("File can't be removed and still exist: " +
arg);
}
return_value = 1;
}
}
}
if (!at_least_one_file) {
cmSystemTools::Error("Missing file/directory to remove");
return 1;
}
return return_value;
}
// Touch file
if (args[1] == "touch" && args.size() > 2) {
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (!cmSystemTools::Touch(arg, true)) {
std::cerr << "cmake -E touch: failed to update \"";
std::cerr << arg << "\".\n";
return 1;
}
}
return 0;
}
// Touch file
if (args[1] == "touch_nocreate" && args.size() > 2) {
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (!cmSystemTools::Touch(arg, false)) {
std::cerr << "cmake -E touch_nocreate: failed to update \"";
std::cerr << arg << "\".\n";
return 1;
}
}
return 0;
}
// capabilities
if (args[1] == "capabilities") {
if (args.size() > 2) {
std::cerr << "-E capabilities accepts no additional arguments\n";
return 1;
}
cmake cm(cmake::RoleInternal, cmState::Unknown);
std::cout << cm.ReportCapabilities();
return 0;
}
// Sleep command
if (args[1] == "sleep" && args.size() > 2) {
double total = 0;
for (auto const& arg : cmMakeRange(args).advance(2)) {
double num = 0.0;
char unit;
char extra;
int n = sscanf(arg.c_str(), "%lg%c%c", &num, &unit, &extra);
if ((n == 1 || (n == 2 && unit == 's')) && num >= 0) {
total += num;
} else {
std::cerr << "Unknown sleep time format \"" << arg << "\".\n";
return 1;
}
}
if (total > 0) {
cmSystemTools::Delay(static_cast<unsigned int>(total * 1000));
}
return 0;
}
// Clock command
if (args[1] == "time" && args.size() > 2) {
std::vector<std::string> command(args.begin() + 2, args.end());
int ret = 0;
auto time_start = std::chrono::steady_clock::now();
cmSystemTools::RunSingleCommand(command, nullptr, nullptr, &ret, nullptr,
cmSystemTools::OUTPUT_PASSTHROUGH);
auto time_finish = std::chrono::steady_clock::now();
std::chrono::duration<double> time_elapsed = time_finish - time_start;
std::cout << "Elapsed time (seconds): " << time_elapsed.count() << "\n";
return ret;
}
// Command to calculate the md5sum of a file
if (args[1] == "md5sum" && args.size() >= 3) {
return HashSumFile(args, cmCryptoHash::AlgoMD5);
}
// Command to calculate the sha1sum of a file
if (args[1] == "sha1sum" && args.size() >= 3) {
return HashSumFile(args, cmCryptoHash::AlgoSHA1);
}
if (args[1] == "sha224sum" && args.size() >= 3) {
return HashSumFile(args, cmCryptoHash::AlgoSHA224);
}
if (args[1] == "sha256sum" && args.size() >= 3) {
return HashSumFile(args, cmCryptoHash::AlgoSHA256);
}
if (args[1] == "sha384sum" && args.size() >= 3) {
return HashSumFile(args, cmCryptoHash::AlgoSHA384);
}
if (args[1] == "sha512sum" && args.size() >= 3) {
return HashSumFile(args, cmCryptoHash::AlgoSHA512);
}
// Command to concat files into one
if (args[1] == "cat" && args.size() >= 3) {
int return_value = 0;
bool doing_options = true;
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (doing_options && cmHasLiteralPrefix(arg, "-")) {
if (arg == "--") {
doing_options = false;
} else {
cmSystemTools::Error(arg + ": option not handled");
return_value = 1;
}
} else if (!cmSystemTools::TestFileAccess(arg,
cmsys::TEST_FILE_READ) &&
cmSystemTools::TestFileAccess(arg, cmsys::TEST_FILE_OK)) {
cmSystemTools::Error(arg + ": permission denied (ignoring)");
return_value = 1;
} else if (cmSystemTools::FileIsDirectory(arg)) {
cmSystemTools::Error(arg + ": is a directory (ignoring)");
return_value = 1;
} else if (!cmSystemTools::FileExists(arg)) {
cmSystemTools::Error(arg + ": no such file or directory (ignoring)");
return_value = 1;
} else if (cmSystemTools::FileLength(arg) == 0) {
// Ignore empty files, this is not an error
} else {
// Destroy console buffers to drop cout/cerr encoding transform.
consoleBuf.reset();
cmCatFile(arg);
}
}
return return_value;
}
// Command to change directory and run a program.
if (args[1] == "chdir" && args.size() >= 4) {
std::string const& directory = args[2];
if (!cmSystemTools::FileExists(directory)) {
cmSystemTools::Error("Directory does not exist for chdir command: " +
directory);
return 1;
}
std::string command =
cmWrap('"', cmMakeRange(args).advance(3), '"', " ");
int retval = 0;
if (cmSystemTools::RunSingleCommand(
command, nullptr, nullptr, &retval, directory.c_str(),
cmSystemTools::OUTPUT_PASSTHROUGH, cmDuration::zero())) {
return retval;
}
return 1;
}
// Command to start progress for a build
if (args[1] == "cmake_progress_start" && args.size() == 4) {
// basically remove the directory
std::string dirName = cmStrCat(args[2], "/Progress");
cmSystemTools::RemoveADirectory(dirName);
// is the last argument a filename that exists?
FILE* countFile = cmsys::SystemTools::Fopen(args[3], "r");
int count;
if (countFile) {
if (1 != fscanf(countFile, "%i", &count)) {
std::cerr << "Could not read from count file.\n";
}
fclose(countFile);
} else {
count = atoi(args[3].c_str());
}
if (count) {
cmSystemTools::MakeDirectory(dirName);
// write the count into the directory
std::string fName = cmStrCat(dirName, "/count.txt");
FILE* progFile = cmsys::SystemTools::Fopen(fName, "w");
if (progFile) {
fprintf(progFile, "%i\n", count);
fclose(progFile);
}
}
return 0;
}
// Command to report progress for a build
if (args[1] == "cmake_progress_report" && args.size() >= 3) {
// This has been superseded by cmake_echo_color --progress-*
// options. We leave it here to avoid errors if somehow this
// is invoked by an existing makefile without regenerating.
return 0;
}
// Command to create a symbolic link. Fails on platforms not
// supporting them.
if (args[1] == "create_symlink" && args.size() == 4) {
std::string const& destinationFileName = args[3];
if (cmSystemTools::PathExists(destinationFileName) &&
!cmSystemTools::RemoveFile(destinationFileName)) {
std::string emsg = cmSystemTools::GetLastSystemError();
std::cerr << "failed to create symbolic link '" << destinationFileName
<< "' because existing path cannot be removed: " << emsg
<< "\n";
return 1;
}
if (!cmSystemTools::CreateSymlink(args[2], destinationFileName)) {
return 1;
}
return 0;
}
// Command to create a hard link. Fails on platforms not
// supporting them.
if (args[1] == "create_hardlink" && args.size() == 4) {
std::string const& sourceFileName = args[2];
std::string const& destinationFileName = args[3];
if (!cmSystemTools::FileExists(sourceFileName)) {
std::cerr << "failed to create hard link because source path '"
<< sourceFileName << "' does not exist \n";
return 1;
}
if (cmSystemTools::PathExists(destinationFileName) &&
!cmSystemTools::RemoveFile(destinationFileName)) {
std::string emsg = cmSystemTools::GetLastSystemError();
std::cerr << "failed to create hard link '" << destinationFileName
<< "' because existing path cannot be removed: " << emsg
<< "\n";
return 1;
}
if (!cmSystemTools::CreateLink(sourceFileName, destinationFileName)) {
return 1;
}
return 0;
}
// Command to do nothing with an exit code of 0.
if (args[1] == "true") {
return 0;
}
// Command to do nothing with an exit code of 1.
if (args[1] == "false") {
return 1;
}
// Internal CMake shared library support.
if (args[1] == "cmake_symlink_library" && args.size() == 5) {
return cmcmd::SymlinkLibrary(args);
}
// Internal CMake versioned executable support.
if (args[1] == "cmake_symlink_executable" && args.size() == 4) {
return cmcmd::SymlinkExecutable(args);
}
// Internal CMake dependency scanning support.
if (args[1] == "cmake_depends" && args.size() >= 6) {
const bool verbose = isCMakeVerbose();
// Create a cmake object instance to process dependencies.
// All we need is the `set` command.
cmake cm(cmake::RoleScript, cmState::Unknown);
std::string gen;
std::string homeDir;
std::string startDir;
std::string homeOutDir;
std::string startOutDir;
std::string depInfo;
bool color = false;
if (args.size() >= 8) {
// Full signature:
//
// -E cmake_depends <generator>
// <home-src-dir> <start-src-dir>
// <home-out-dir> <start-out-dir>
// <dep-info> [--color=$(COLOR)]
//
// All paths are provided.
gen = args[2];
homeDir = args[3];
startDir = args[4];
homeOutDir = args[5];
startOutDir = args[6];
depInfo = args[7];
if (args.size() >= 9 && cmHasLiteralPrefix(args[8], "--color=")) {
// Enable or disable color based on the switch value.
color = (args[8].size() == 8 || cmIsOn(args[8].substr(8)));
}
} else {
// Support older signature for existing makefiles:
//
// -E cmake_depends <generator>
// <home-out-dir> <start-out-dir>
// <dep-info>
//
// Just pretend the source directories are the same as the
// binary directories so at least scanning will work.
gen = args[2];
homeDir = args[3];
startDir = args[4];
homeOutDir = args[3];
startOutDir = args[3];
depInfo = args[5];
}
// Create a local generator configured for the directory in
// which dependencies will be scanned.
homeDir = cmSystemTools::CollapseFullPath(homeDir);
startDir = cmSystemTools::CollapseFullPath(startDir);
homeOutDir = cmSystemTools::CollapseFullPath(homeOutDir);
startOutDir = cmSystemTools::CollapseFullPath(startOutDir);
cm.SetHomeDirectory(homeDir);
cm.SetHomeOutputDirectory(homeOutDir);
cm.GetCurrentSnapshot().SetDefaultDefinitions();
if (auto ggd = cm.CreateGlobalGenerator(gen)) {
cm.SetGlobalGenerator(std::move(ggd));
cmStateSnapshot snapshot = cm.GetCurrentSnapshot();
snapshot.GetDirectory().SetCurrentBinary(startOutDir);
snapshot.GetDirectory().SetCurrentSource(startDir);
cmMakefile mf(cm.GetGlobalGenerator(), snapshot);
auto lgd = cm.GetGlobalGenerator()->CreateLocalGenerator(&mf);
// FIXME: With advanced add_subdirectory usage, these are
// not necessarily the same as the generator originally used.
// We should pass all these directories through an info file.
lgd->SetRelativePathTop(homeDir, homeOutDir);
// Actually scan dependencies.
return lgd->UpdateDependencies(depInfo, verbose, color) ? 0 : 2;
}
return 1;
}
#if !defined(CMAKE_BOOTSTRAP) || defined(CMAKE_BOOTSTRAP_MAKEFILES)
// Internal CMake compiler dependencies filtering
if (args[1] == "cmake_cl_compile_depends") {
return CLCompileAndDependencies(args);
}
#endif
// Internal CMake link script support.
if (args[1] == "cmake_link_script" && args.size() >= 3) {
return cmcmd::ExecuteLinkScript(args);
}
#if !defined(CMAKE_BOOTSTRAP)
// Internal CMake ninja dependency scanning support.
if (args[1] == "cmake_ninja_depends") {
return cmcmd_cmake_ninja_depends(args.begin() + 2, args.end());
}
// Internal CMake ninja dyndep support.
if (args[1] == "cmake_ninja_dyndep") {
return cmcmd_cmake_ninja_dyndep(args.begin() + 2, args.end());
}
#endif
// Internal CMake unimplemented feature notification.
if (args[1] == "cmake_unimplemented_variable") {
std::cerr << "Feature not implemented for this platform.";
if (args.size() == 3) {
std::cerr << " Variable " << args[2] << " is not set.";
}
std::cerr << std::endl;
return 1;
}
if (args[1] == "vs_link_exe") {
return cmcmd::VisualStudioLink(args, 1);
}
if (args[1] == "vs_link_dll") {
return cmcmd::VisualStudioLink(args, 2);
}
if (args[1] == "cmake_llvm_rc") {
return cmcmd::RunLLVMRC(args);
}
// Internal CMake color makefile support.
if (args[1] == "cmake_echo_color") {
return cmcmd::ExecuteEchoColor(args);
}
#ifndef CMAKE_BOOTSTRAP
if ((args[1] == "cmake_autogen") && (args.size() >= 4)) {
cm::string_view const infoFile = args[2];
cm::string_view const config = args[3];
return cmQtAutoMocUic(infoFile, config) ? 0 : 1;
}
if ((args[1] == "cmake_autorcc") && (args.size() >= 3)) {
cm::string_view const infoFile = args[2];
cm::string_view const config =
(args.size() > 3) ? cm::string_view(args[3]) : cm::string_view();
return cmQtAutoRcc(infoFile, config) ? 0 : 1;
}
#endif
// Tar files
if (args[1] == "tar" && args.size() > 3) {
const char* knownFormats[] = { "7zip", "gnutar", "pax", "paxr", "zip" };
std::string const& flags = args[2];
std::string const& outFile = args[3];
std::vector<std::string> files;
std::string mtime;
std::string format;
cmSystemTools::cmTarExtractTimestamps extractTimestamps =
cmSystemTools::cmTarExtractTimestamps::Yes;
cmSystemTools::cmTarCompression compress =
cmSystemTools::TarCompressNone;
int nCompress = 0;
bool doing_options = true;
for (auto const& arg : cmMakeRange(args).advance(4)) {
if (doing_options && cmHasLiteralPrefix(arg, "--")) {
if (arg == "--") {
doing_options = false;
} else if (arg == "--zstd") {
compress = cmSystemTools::TarCompressZstd;
++nCompress;
} else if (cmHasLiteralPrefix(arg, "--mtime=")) {
mtime = arg.substr(8);
} else if (cmHasLiteralPrefix(arg, "--files-from=")) {
std::string const& files_from = arg.substr(13);
if (!cmTarFilesFrom(files_from, files)) {
return 1;
}
} else if (cmHasLiteralPrefix(arg, "--format=")) {
format = arg.substr(9);
if (!cm::contains(knownFormats, format)) {
cmSystemTools::Error("Unknown -E tar --format= argument: " +
format);
return 1;
}
} else if (arg == "--touch") {
extractTimestamps = cmSystemTools::cmTarExtractTimestamps::No;
} else {
cmSystemTools::Error("Unknown option to -E tar: " + arg);
return 1;
}
} else {
files.push_back(arg);
}
}
cmSystemTools::cmTarAction action = cmSystemTools::TarActionNone;
bool verbose = false;
for (auto flag : flags) {
switch (flag) {
case '-':
case 'f': {
// Keep for backward compatibility. Ignored
} break;
case 'j': {
compress = cmSystemTools::TarCompressBZip2;
++nCompress;
} break;
case 'J': {
compress = cmSystemTools::TarCompressXZ;
++nCompress;
} break;
case 'z': {
compress = cmSystemTools::TarCompressGZip;
++nCompress;
} break;
case 'v': {
verbose = true;
} break;
case 't': {
action = cmSystemTools::TarActionList;
} break;
case 'c': {
action = cmSystemTools::TarActionCreate;
} break;
case 'x': {
action = cmSystemTools::TarActionExtract;
} break;
default: {
std::cerr << "tar: Unknown argument: " << flag << "\n";
}
}
}
if ((format == "7zip" || format == "zip") && nCompress > 0) {
cmSystemTools::Error("Can not use compression flags with format: " +
format);
return 1;
}
if (nCompress > 1) {
cmSystemTools::Error("Can only compress a tar file one way; "
"at most one flag of z, j, or J may be used");
return 1;
}
if (action == cmSystemTools::TarActionList) {
if (!cmSystemTools::ListTar(outFile, files, verbose)) {
cmSystemTools::Error("Problem listing tar: " + outFile);
return 1;
}
} else if (action == cmSystemTools::TarActionCreate) {
if (files.empty()) {
std::cerr << "tar: No files or directories specified\n";
}
if (!cmSystemTools::CreateTar(outFile, files, compress, verbose, mtime,
format)) {
cmSystemTools::Error("Problem creating tar: " + outFile);
return 1;
}
} else if (action == cmSystemTools::TarActionExtract) {
if (!cmSystemTools::ExtractTar(outFile, files, extractTimestamps,
verbose)) {
cmSystemTools::Error("Problem extracting tar: " + outFile);
return 1;
}
#ifdef _WIN32
// OK, on windows 7 after we untar some files,
// sometimes we can not rename the directory after
// the untar is done. This breaks the external project
// untar and rename code. So, by default we will wait
// 1/10th of a second after the untar. If CMAKE_UNTAR_DELAY
// is set in the env, its value will be used instead of 100.
int delay = 100;
std::string delayVar;
if (cmSystemTools::GetEnv("CMAKE_UNTAR_DELAY", delayVar)) {
delay = atoi(delayVar.c_str());
}
if (delay) {
cmSystemTools::Delay(delay);
}
#endif
} else {
cmSystemTools::Error("tar: No action specified. Please choose: 't' "
"(list), 'c' (create) or 'x' (extract)");
return 1;
}
return 0;
}
if (args[1] == "server") {
cmSystemTools::Error(
"CMake server mode has been removed in favor of the file-api.");
return 1;
}
#if !defined(CMAKE_BOOTSTRAP)
// Internal CMake Fortran module support.
if (args[1] == "cmake_copy_f90_mod" && args.size() >= 4) {
return cmDependsFortran::CopyModule(args) ? 0 : 1;
}
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
// Write registry value
if (args[1] == "write_regv" && args.size() > 3) {
return cmSystemTools::WriteRegistryValue(args[2], args[3]) ? 0 : 1;
}
// Delete registry value
if (args[1] == "delete_regv" && args.size() > 2) {
return cmSystemTools::DeleteRegistryValue(args[2]) ? 0 : 1;
}
// Remove file
if (args[1] == "comspec" && args.size() > 2) {
std::cerr << "Win9x helper \"cmake -E comspec\" no longer supported\n";
return 1;
}
if (args[1] == "env_vs8_wince" && args.size() == 3) {
return cmcmd::WindowsCEEnvironment("8.0", args[2]);
}
if (args[1] == "env_vs9_wince" && args.size() == 3) {
return cmcmd::WindowsCEEnvironment("9.0", args[2]);
}
#endif
// Internal depfile transformation
if (args[1] == "cmake_transform_depfile" && args.size() == 10) {
auto format = cmDepfileFormat::GccDepfile;
if (args[3] == "gccdepfile") {
format = cmDepfileFormat::GccDepfile;
} else if (args[3] == "makedepfile") {
format = cmDepfileFormat::MakeDepfile;
} else if (args[3] == "MSBuildAdditionalInputs") {
format = cmDepfileFormat::MSBuildAdditionalInputs;
} else {
return 1;
}
// Create a cmake object instance to process dependencies.
// All we need is the `set` command.
cmake cm(cmake::RoleScript, cmState::Unknown);
std::string homeDir;
std::string startDir;
std::string homeOutDir;
std::string startOutDir;
homeDir = cmSystemTools::CollapseFullPath(args[4]);
startDir = cmSystemTools::CollapseFullPath(args[5]);
homeOutDir = cmSystemTools::CollapseFullPath(args[6]);
startOutDir = cmSystemTools::CollapseFullPath(args[7]);
cm.SetHomeDirectory(homeDir);
cm.SetHomeOutputDirectory(homeOutDir);
cm.GetCurrentSnapshot().SetDefaultDefinitions();
if (auto ggd = cm.CreateGlobalGenerator(args[2])) {
cm.SetGlobalGenerator(std::move(ggd));
cmStateSnapshot snapshot = cm.GetCurrentSnapshot();
snapshot.GetDirectory().SetCurrentBinary(startOutDir);
snapshot.GetDirectory().SetCurrentSource(startDir);
cmMakefile mf(cm.GetGlobalGenerator(), snapshot);
auto lgd = cm.GetGlobalGenerator()->CreateLocalGenerator(&mf);
// FIXME: With advanced add_subdirectory usage, these are
// not necessarily the same as the generator originally used.
// We should pass all these directories through an info file.
lgd->SetRelativePathTop(homeDir, homeOutDir);
return cmTransformDepfile(format, *lgd, args[8], args[9]) ? 0 : 2;
}
return 1;
}
}
CMakeCommandUsage(args[0]);
return 1;
}
int cmcmd::HashSumFile(std::vector<std::string> const& args,
cmCryptoHash::Algo algo)
{
if (args.size() < 3) {
return -1;
}
int retval = 0;
for (auto const& filename : cmMakeRange(args).advance(2)) {
// Cannot compute sum of a directory
if (cmSystemTools::FileIsDirectory(filename)) {
std::cerr << "Error: " << filename << " is a directory" << std::endl;
retval++;
} else {
cmCryptoHash hasher(algo);
std::string value = hasher.HashFile(filename);
if (value.empty()) {
// To mimic "md5sum/shasum" behavior in a shell:
std::cerr << filename << ": No such file or directory" << std::endl;
retval++;
} else {
std::cout << value << " " << filename << std::endl;
}
}
}
return retval;
}
int cmcmd::SymlinkLibrary(std::vector<std::string> const& args)
{
int result = 0;
std::string realName = args[2];
std::string soName = args[3];
std::string name = args[4];
cmSystemTools::ConvertToUnixSlashes(realName);
cmSystemTools::ConvertToUnixSlashes(soName);
cmSystemTools::ConvertToUnixSlashes(name);
if (soName != realName) {
cmsys::Status status = cmcmd::SymlinkInternal(realName, soName);
if (!status) {
cmSystemTools::Error(
cmStrCat("cmake_symlink_library: System Error: ", status.GetString()));
result = 1;
}
}
if (name != soName) {
cmsys::Status status = cmcmd::SymlinkInternal(soName, name);
if (!status) {
cmSystemTools::Error(
cmStrCat("cmake_symlink_library: System Error: ", status.GetString()));
result = 1;
}
}
return result;
}
int cmcmd::SymlinkExecutable(std::vector<std::string> const& args)
{
int result = 0;
std::string const& realName = args[2];
std::string const& name = args[3];
if (name != realName) {
cmsys::Status status = cmcmd::SymlinkInternal(realName, name);
if (!status) {
cmSystemTools::Error(cmStrCat("cmake_symlink_executable: System Error: ",
status.GetString()));
result = 1;
}
}
return result;
}
cmsys::Status cmcmd::SymlinkInternal(std::string const& file,
std::string const& link)
{
if (cmSystemTools::PathExists(link)) {
cmSystemTools::RemoveFile(link);
}
std::string linktext = cmSystemTools::GetFilenameName(file);
#if defined(_WIN32) && !defined(__CYGWIN__)
cmsys::Status status = cmSystemTools::CreateSymlinkQuietly(linktext, link);
// Creating a symlink will fail with ERROR_PRIVILEGE_NOT_HELD if the user
// does not have SeCreateSymbolicLinkPrivilege, or if developer mode is not
// active. In that case, we try to copy the file.
if (status.GetWindows() == ERROR_PRIVILEGE_NOT_HELD) {
status = cmSystemTools::CopyFileAlways(file, link);
} else if (!status) {
cmSystemTools::Error(cmStrCat("failed to create symbolic link '", link,
"': ", status.GetString()));
}
return status;
#else
return cmSystemTools::CreateSymlink(linktext, link);
#endif
}
static void cmcmdProgressReport(std::string const& dir, std::string const& num)
{
std::string dirName = cmStrCat(dir, "/Progress");
std::string fName;
FILE* progFile;
// read the count
fName = cmStrCat(dirName, "/count.txt");
progFile = cmsys::SystemTools::Fopen(fName, "r");
int count = 0;
if (!progFile) {
return;
}
if (1 != fscanf(progFile, "%i", &count)) {
std::cerr << "Could not read from progress file.\n";
}
fclose(progFile);
const char* last = num.c_str();
for (const char* c = last;; ++c) {
if (*c == ',' || *c == '\0') {
if (c != last) {
fName = cmStrCat(dirName, '/');
fName.append(last, c - last);
progFile = cmsys::SystemTools::Fopen(fName, "w");
if (progFile) {
fprintf(progFile, "empty");
fclose(progFile);
}
}
if (*c == '\0') {
break;
}
last = c + 1;
}
}
int fileNum =
static_cast<int>(cmsys::Directory::GetNumberOfFilesInDirectory(dirName));
if (count > 0) {
// print the progress
fprintf(stdout, "[%3i%%] ", ((fileNum - 3) * 100) / count);
}
}
int cmcmd::ExecuteEchoColor(std::vector<std::string> const& args)
{
// The arguments are
// args[0] == <cmake-executable>
// args[1] == cmake_echo_color
bool enabled = true;
int color = cmsysTerminal_Color_Normal;
bool newline = true;
std::string progressDir;
for (auto const& arg : cmMakeRange(args).advance(2)) {
if (cmHasLiteralPrefix(arg, "--switch=")) {
// Enable or disable color based on the switch value.
std::string value = arg.substr(9);
if (!value.empty()) {
enabled = cmIsOn(value);
}
} else if (cmHasLiteralPrefix(arg, "--progress-dir=")) {
progressDir = arg.substr(15);
} else if (cmHasLiteralPrefix(arg, "--progress-num=")) {
if (!progressDir.empty()) {
std::string const& progressNum = arg.substr(15);
cmcmdProgressReport(progressDir, progressNum);
}
} else if (arg == "--normal") {
color = cmsysTerminal_Color_Normal;
} else if (arg == "--black") {
color = cmsysTerminal_Color_ForegroundBlack;
} else if (arg == "--red") {
color = cmsysTerminal_Color_ForegroundRed;
} else if (arg == "--green") {
color = cmsysTerminal_Color_ForegroundGreen;
} else if (arg == "--yellow") {
color = cmsysTerminal_Color_ForegroundYellow;
} else if (arg == "--blue") {
color = cmsysTerminal_Color_ForegroundBlue;
} else if (arg == "--magenta") {
color = cmsysTerminal_Color_ForegroundMagenta;
} else if (arg == "--cyan") {
color = cmsysTerminal_Color_ForegroundCyan;
} else if (arg == "--white") {
color = cmsysTerminal_Color_ForegroundWhite;
} else if (arg == "--bold") {
color |= cmsysTerminal_Color_ForegroundBold;
} else if (arg == "--no-newline") {
newline = false;
} else if (arg == "--newline") {
newline = true;
} else {
// Color is enabled. Print with the current color.
cmSystemTools::MakefileColorEcho(color, arg.c_str(), newline, enabled);
}
}
return 0;
}
int cmcmd::ExecuteLinkScript(std::vector<std::string> const& args)
{
// The arguments are
// args[0] == <cmake-executable>
// args[1] == cmake_link_script
// args[2] == <link-script-name>
// args[3] == --verbose=?
bool verbose = false;
if (args.size() >= 4) {
if (cmHasLiteralPrefix(args[3], "--verbose=")) {
if (!cmIsOff(args[3].substr(10))) {
verbose = true;
}
}
}
// Read command lines from the script.
cmsys::ifstream fin(args[2].c_str());
if (!fin) {
std::cerr << "Error opening link script \"" << args[2] << "\""
<< std::endl;
return 1;
}
// Run one command at a time.
std::string command;
int result = 0;
while (result == 0 && cmSystemTools::GetLineFromStream(fin, command)) {
// Skip empty command lines.
if (command.find_first_not_of(" \t") == std::string::npos) {
continue;
}
// Allocate a process instance.
cmUVProcessChainBuilder builder;
// Children should share stdout and stderr with this process.
builder
.SetExternalStream(cmUVProcessChainBuilder::Stream_OUTPUT,
cm_fileno(stdout))
.SetExternalStream(cmUVProcessChainBuilder::Stream_ERROR,
cm_fileno(stderr));
// Setup this command line.
std::vector<std::string> args2;
#ifdef _WIN32
cmSystemTools::ParseWindowsCommandLine(command.c_str(), args2);
#else
cmSystemTools::ParseUnixCommandLine(command.c_str(), args2);
#endif
builder.AddCommand(args2);
// Report the command if verbose output is enabled.
if (verbose) {
std::cout << command << std::endl;
}
// Run the command and wait for it to exit.
auto chain = builder.Start();
chain.Wait();
// Report failure if any.
auto const& status = chain.GetStatus(0);
auto exception = status.GetException();
switch (exception.first) {
case cmUVProcessChain::ExceptionCode::None:
if (status.ExitStatus != 0) {
result = static_cast<int>(status.ExitStatus);
}
break;
case cmUVProcessChain::ExceptionCode::Spawn:
std::cerr << "Error running link command: " << exception.second;
result = 2;
break;
default:
std::cerr << "Error running link command: " << exception.second;
result = 1;
break;
}
}
// Return the final resulting return value.
return result;
}
int cmcmd::WindowsCEEnvironment(const char* version, const std::string& name)
{
#if !defined(CMAKE_BOOTSTRAP) && defined(_WIN32) && !defined(__CYGWIN__)
cmVisualStudioWCEPlatformParser parser(name.c_str());
parser.ParseVersion(version);
if (parser.Found()) {
/* clang-format off */
std::cout << "@echo off\n"
"echo Environment Selection: " << name << "\n"
"set PATH=" << parser.GetPathDirectories() << "\n"
"set INCLUDE=" << parser.GetIncludeDirectories() << "\n"
"set LIB=" << parser.GetLibraryDirectories() << std::endl;
/* clang-format on */
return 0;
}
#else
(void)version;
#endif
std::cerr << "Could not find " << name;
return -1;
}
int cmcmd::RunPreprocessor(const std::vector<std::string>& command,
const std::string& intermediate_file)
{
cmUVProcessChainBuilder builder;
uv_fs_t fs_req;
int preprocessedFile =
uv_fs_open(nullptr, &fs_req, intermediate_file.c_str(), O_CREAT | O_RDWR,
0644, nullptr);
uv_fs_req_cleanup(&fs_req);
builder
.SetExternalStream(cmUVProcessChainBuilder::Stream_OUTPUT,
preprocessedFile)
.SetBuiltinStream(cmUVProcessChainBuilder::Stream_ERROR)
.AddCommand(command);
auto process = builder.Start();
if (!process.Valid() || process.GetStatus(0).SpawnResult != 0) {
std::cerr << "Failed to start preprocessor.";
return 1;
}
if (!process.Wait()) {
std::cerr << "Failed to wait for preprocessor";
return 1;
}
if (process.GetStatus(0).ExitStatus != 0) {
cmUVPipeIStream errorStream(process.GetLoop(), process.ErrorStream());
std::cerr << errorStream.rdbuf();
return 1;
}
return 0;
}
int cmcmd::RunLLVMRC(std::vector<std::string> const& args)
{
// The arguments are
// args[0] == <cmake-executable>
// args[1] == cmake_llvm_rc
// args[2] == source_file_path
// args[3] == intermediate_file
// args[4..n] == preprocess+args
// args[n+1] == ++
// args[n+2...] == llvm-rc+args
if (args.size() < 3) {
std::cerr << "Invalid cmake_llvm_rc arguments";
return 1;
}
const std::string& intermediate_file = args[3];
const std::string& source_file = args[2];
std::vector<std::string> preprocess;
std::vector<std::string> resource_compile;
std::vector<std::string>* pArgTgt = &preprocess;
static const cmsys::RegularExpression llvm_rc_only_single_arg("^[-/](N|Y)");
static const cmsys::RegularExpression llvm_rc_only_double_arg(
"^[-/](C|LN|L)(.)?");
static const cmsys::RegularExpression common_double_arg(
"^[-/](D|U|I|FO|fo|Fo)(.)?");
bool acceptNextArg = false;
bool skipNextArg = false;
for (std::string const& arg : cmMakeRange(args).advance(4)) {
if (skipNextArg) {
skipNextArg = false;
continue;
}
// We use ++ as separator between the preprocessing step definition and
// the rc compilation step because we need to prepend a -- to separate the
// source file properly from other options when using clang-cl for
// preprocessing.
if (arg == "++") {
pArgTgt = &resource_compile;
skipNextArg = false;
acceptNextArg = true;
} else {
cmsys::RegularExpressionMatch match;
if (!acceptNextArg) {
if (common_double_arg.find(arg.c_str(), match)) {
acceptNextArg = match.match(2).empty();
} else {
if (llvm_rc_only_single_arg.find(arg.c_str(), match)) {
if (pArgTgt == &preprocess) {
continue;
}
} else if (llvm_rc_only_double_arg.find(arg.c_str(), match)) {
if (pArgTgt == &preprocess) {
skipNextArg = match.match(2).empty();
continue;
}
acceptNextArg = match.match(2).empty();
} else if (pArgTgt == &resource_compile) {
continue;
}
}
} else {
acceptNextArg = false;
}
if (arg.find("SOURCE_DIR") != std::string::npos) {
std::string sourceDirArg = arg;
cmSystemTools::ReplaceString(
sourceDirArg, "SOURCE_DIR",
cmSystemTools::GetFilenamePath(source_file));
pArgTgt->push_back(sourceDirArg);
} else {
pArgTgt->push_back(arg);
}
}
}
if (preprocess.empty()) {
std::cerr << "Empty preprocessing command";
return 1;
}
if (resource_compile.empty()) {
std::cerr << "Empty resource compilation command";
return 1;
}
// Since we might have skipped the last argument to llvm-rc
// we need to make sure the llvm-rc source file is present in the
// commandline
if (resource_compile.back() != intermediate_file) {
resource_compile.push_back(intermediate_file);
}
auto result = RunPreprocessor(preprocess, intermediate_file);
if (result != 0) {
cmSystemTools::RemoveFile(intermediate_file);
return result;
}
cmUVProcessChainBuilder builder;
builder.SetBuiltinStream(cmUVProcessChainBuilder::Stream_OUTPUT)
.SetBuiltinStream(cmUVProcessChainBuilder::Stream_ERROR)
.AddCommand(resource_compile);
auto process = builder.Start();
result = 0;
if (!process.Valid() || process.GetStatus(0).SpawnResult != 0) {
std::cerr << "Failed to start resource compiler.";
result = 1;
} else {
if (!process.Wait()) {
std::cerr << "Failed to wait for resource compiler";
result = 1;
}
}
cmSystemTools::RemoveFile(intermediate_file);
if (result != 0) {
return result;
}
if (process.GetStatus(0).ExitStatus != 0) {
cmUVPipeIStream errorStream(process.GetLoop(), process.ErrorStream());
std::cerr << errorStream.rdbuf();
return 1;
}
return 0;
}
class cmVSLink
{
int Type;
bool Verbose;
bool Incremental = false;
bool LinkGeneratesManifest = true;
std::vector<std::string> LinkCommand;
std::vector<std::string> UserManifests;
std::string LinkerManifestFile;
std::string ManifestFile;
std::string ManifestFileRC;
std::string ManifestFileRes;
std::string TargetFile;
std::string MtPath;
std::string RcPath;
public:
cmVSLink(int type, bool verbose)
: Type(type)
, Verbose(verbose)
{
}
bool Parse(std::vector<std::string>::const_iterator argBeg,
std::vector<std::string>::const_iterator argEnd);
int Link();
private:
int LinkIncremental();
int LinkNonIncremental();
int RunMT(std::string const& out, bool notify);
};
// For visual studio 2005 and newer manifest files need to be embedded into
// exe and dll's. This code does that in such a way that incremental linking
// still works.
int cmcmd::VisualStudioLink(std::vector<std::string> const& args, int type)
{
// Replace streambuf so we output in the system codepage. CMake is set up
// to output in Unicode (see SetUTF8Pipes) but the Visual Studio linker
// outputs using the system codepage so we need to change behavior when
// we run the link command.
cmConsoleBuf consoleBuf;
if (args.size() < 2) {
return -1;
}
const bool verbose = cmSystemTools::HasEnv("VERBOSE");
std::vector<std::string> expandedArgs;
for (std::string const& i : args) {
// check for nmake temporary files
if (i[0] == '@' && !cmHasLiteralPrefix(i, "@CMakeFiles")) {
cmsys::ifstream fin(i.substr(1).c_str());
std::string line;
while (cmSystemTools::GetLineFromStream(fin, line)) {
cmSystemTools::ParseWindowsCommandLine(line.c_str(), expandedArgs);
}
} else {
expandedArgs.push_back(i);
}
}
cmVSLink vsLink(type, verbose);
if (!vsLink.Parse(expandedArgs.begin() + 2, expandedArgs.end())) {
return -1;
}
return vsLink.Link();
}
enum NumberFormat
{
FORMAT_DECIMAL,
FORMAT_HEX
};
struct NumberFormatter
{
NumberFormat Format;
int Value;
NumberFormatter(NumberFormat format, int value)
: Format(format)
, Value(value)
{
}
};
static std::ostream& operator<<(std::ostream& stream,
NumberFormatter const& formatter)
{
auto const& flags = stream.flags();
if (formatter.Format == FORMAT_DECIMAL) {
stream << std::dec << formatter.Value;
} else {
stream << "0x" << std::hex << formatter.Value;
}
stream.flags(flags);
return stream;
}
static bool RunCommand(const char* comment,
std::vector<std::string> const& command, bool verbose,
NumberFormat exitFormat, int* retCodeOut = nullptr,
bool (*retCodeOkay)(int) = nullptr)
{
if (verbose) {
std::cout << comment << ":\n";
std::cout << cmJoin(command, " ") << "\n";
}
std::string output;
int retCode = 0;
bool commandResult = cmSystemTools::RunSingleCommand(
command, &output, &output, &retCode, nullptr, cmSystemTools::OUTPUT_NONE);
bool const retCodeSuccess =
retCode == 0 || (retCodeOkay && retCodeOkay(retCode));
bool const success = commandResult && retCodeSuccess;
if (retCodeOut) {
if (commandResult || !retCodeSuccess) {
*retCodeOut = retCode;
} else {
*retCodeOut = -1;
}
}
if (!success) {
std::cout << comment << ": command \"" << cmJoin(command, " ")
<< "\" failed (exit code "
<< NumberFormatter(exitFormat, retCode)
<< ") with the following output:\n"
<< output;
} else if (verbose) {
// always print the output of the command, unless
// it is the dumb rc command banner
if (output.find("Resource Compiler Version") == std::string::npos) {
std::cout << output;
}
}
return success;
}
bool cmVSLink::Parse(std::vector<std::string>::const_iterator argBeg,
std::vector<std::string>::const_iterator argEnd)
{
// Parse our own arguments.
std::string intDir;
auto arg = argBeg;
while (arg != argEnd && cmHasLiteralPrefix(*arg, "-")) {
if (*arg == "--") {
++arg;
break;
}
if (*arg == "--manifests") {
for (++arg; arg != argEnd && !cmHasLiteralPrefix(*arg, "-"); ++arg) {
this->UserManifests.push_back(*arg);
}
} else if (cmHasLiteralPrefix(*arg, "--intdir=")) {
intDir = arg->substr(9);
++arg;
} else if (cmHasLiteralPrefix(*arg, "--rc=")) {
this->RcPath = arg->substr(5);
++arg;
} else if (cmHasLiteralPrefix(*arg, "--mt=")) {
this->MtPath = arg->substr(5);
++arg;
} else {
std::cerr << "unknown argument '" << *arg << "'\n";
return false;
}
}
if (intDir.empty()) {
return false;
}
// The rest of the arguments form the link command.
if (arg == argEnd) {
return false;
}
this->LinkCommand.insert(this->LinkCommand.begin(), arg, argEnd);
// Parse the link command to extract information we need.
for (; arg != argEnd; ++arg) {
if (cmSystemTools::Strucmp(arg->c_str(), "/INCREMENTAL:YES") == 0 ||
cmSystemTools::Strucmp(arg->c_str(), "-INCREMENTAL:YES") == 0 ||
cmSystemTools::Strucmp(arg->c_str(), "/INCREMENTAL") == 0 ||
cmSystemTools::Strucmp(arg->c_str(), "-INCREMENTAL") == 0) {
this->Incremental = true;
} else if (cmSystemTools::Strucmp(arg->c_str(), "/INCREMENTAL:NO") == 0 ||
cmSystemTools::Strucmp(arg->c_str(), "-INCREMENTAL:NO") == 0) {
this->Incremental = false;
} else if (cmSystemTools::Strucmp(arg->c_str(), "/MANIFEST:NO") == 0 ||
cmSystemTools::Strucmp(arg->c_str(), "-MANIFEST:NO") == 0) {
this->LinkGeneratesManifest = false;
} else if (cmHasLiteralPrefix(*arg, "/Fe") ||
cmHasLiteralPrefix(*arg, "-Fe")) {
this->TargetFile = arg->substr(3);
} else if (cmHasLiteralPrefix(*arg, "/out:") ||
cmHasLiteralPrefix(*arg, "-out:")) {
this->TargetFile = arg->substr(5);
}
}
if (this->TargetFile.empty()) {
return false;
}
this->ManifestFile = intDir + "/embed.manifest";
this->LinkerManifestFile = intDir + "/intermediate.manifest";
if (this->Incremental) {
// We will compile a resource containing the manifest and
// pass it to the link command.
this->ManifestFileRC = intDir + "/manifest.rc";
this->ManifestFileRes = intDir + "/manifest.res";
if (this->LinkGeneratesManifest) {
this->LinkCommand.emplace_back("/MANIFEST");
this->LinkCommand.push_back("/MANIFESTFILE:" + this->LinkerManifestFile);
}
}
return true;
}
int cmVSLink::Link()
{
if (this->Incremental &&
(this->LinkGeneratesManifest || !this->UserManifests.empty())) {
if (this->Verbose) {
std::cout << "Visual Studio Incremental Link with embedded manifests\n";
}
return this->LinkIncremental();
}
if (this->Verbose) {
if (!this->Incremental) {
std::cout << "Visual Studio Non-Incremental Link\n";
} else {
std::cout << "Visual Studio Incremental Link without manifests\n";
}
}
return this->LinkNonIncremental();
}
static bool mtRetIsUpdate(int mtRet)
{
// 'mt /notify_update' returns a special value (differing between
// Windows and POSIX hosts) when it updated the manifest file.
return mtRet == 0x41020001 || mtRet == 0xbb;
}
int cmVSLink::LinkIncremental()
{
// This follows the steps listed here:
// http://blogs.msdn.com/zakramer/archive/2006/05/22/603558.aspx
// 1. Compiler compiles the application and generates the *.obj files.
// 2. An empty manifest file is generated if this is a clean build and
// if not the previous one is reused.
// 3. The resource compiler (rc.exe) compiles the *.manifest file to a
// *.res file.
// 4. Linker generates the binary (EXE or DLL) with the /incremental
// switch and embeds the dummy manifest file. The linker also generates
// the real manifest file based on the binaries that your binary depends
// on.
// 5. The manifest tool (mt.exe) is then used to generate the final
// manifest.
// If the final manifest is changed, then 6 and 7 are run, if not
// they are skipped, and it is done.
// 6. The resource compiler is invoked one more time.
// 7. Finally, the Linker does another incremental link, but since the
// only thing that has changed is the *.res file that contains the
// manifest it is a short link.
// Create a resource file referencing the manifest.
std::string absManifestFile =
cmSystemTools::CollapseFullPath(this->ManifestFile);
if (this->Verbose) {
std::cout << "Create " << this->ManifestFileRC << "\n";
}
{
cmsys::ofstream fout(this->ManifestFileRC.c_str());
if (!fout) {
return -1;
}
// Insert a pragma statement to specify utf-8 encoding.
fout << "#pragma code_page(65001)\n";
fout << this->Type
<< " /* CREATEPROCESS_MANIFEST_RESOURCE_ID */ "
"24 /* RT_MANIFEST */ \""
<< absManifestFile << "\"";
}
// If we have not previously generated a manifest file,
// generate a manifest file so the resource compiler succeeds.
if (!cmSystemTools::FileExists(this->ManifestFile)) {
if (this->Verbose) {
std::cout << "Create empty: " << this->ManifestFile << "\n";
}
if (this->UserManifests.empty()) {
// generate an empty manifest because there are no user provided
// manifest files.
cmsys::ofstream foutTmp(this->ManifestFile.c_str());
} else {
this->RunMT("/out:" + this->ManifestFile, false);
}
}
// Compile the resource file.
std::vector<std::string> rcCommand;
rcCommand.push_back(this->RcPath.empty() ? "rc" : this->RcPath);
rcCommand.emplace_back("/fo");
rcCommand.push_back(this->ManifestFileRes);
rcCommand.push_back(this->ManifestFileRC);
if (!RunCommand("RC Pass 1", rcCommand, this->Verbose, FORMAT_DECIMAL)) {
return -1;
}
// Tell the linker to use our manifest compiled into a resource.
this->LinkCommand.push_back(this->ManifestFileRes);
// Run the link command (possibly generates intermediate manifest).
if (!RunCommand("LINK Pass 1", this->LinkCommand, this->Verbose,
FORMAT_DECIMAL)) {
return -1;
}
// Run the manifest tool to create the final manifest.
int mtRet = this->RunMT("/out:" + this->ManifestFile, true);
// If mt returns a special value then it updated the manifest file so
// we need to embed it again. Otherwise we are done.
if (!mtRetIsUpdate(mtRet)) {
return mtRet;
}
// Compile the resource file again.
if (!RunCommand("RC Pass 2", rcCommand, this->Verbose, FORMAT_DECIMAL)) {
return -1;
}
// Link incrementally again to use the updated resource.
if (!RunCommand("FINAL LINK", this->LinkCommand, this->Verbose,
FORMAT_DECIMAL)) {
return -1;
}
return 0;
}
int cmVSLink::LinkNonIncremental()
{
// The MSVC link tool expects 'rc' to be in the PATH if it needs to embed
// manifests, but the user might explicitly set 'CMAKE_RC_COMPILER' instead.
// Add its location as a fallback at the end of PATH.
if (cmSystemTools::FileIsFullPath(this->RcPath)) {
std::string rcDir = cmSystemTools::GetFilenamePath(this->RcPath);
#ifdef _WIN32
std::replace(rcDir.begin(), rcDir.end(), '/', '\\');
char const pathSep = ';';
#else
char const pathSep = ':';
#endif
cm::optional<std::string> path = cmSystemTools::GetEnvVar("PATH");
if (path) {
path = cmStrCat(*path, pathSep, rcDir);
} else {
path = rcDir;
}
cmSystemTools::PutEnv(cmStrCat("PATH=", *path));
}
// Sort out any manifests.
if (this->LinkGeneratesManifest || !this->UserManifests.empty()) {
std::string opt =
std::string("/MANIFEST:EMBED,ID=") + (this->Type == 1 ? '1' : '2');
this->LinkCommand.emplace_back(opt);
for (auto const& m : this->UserManifests) {
opt = "/MANIFESTINPUT:" + m;
this->LinkCommand.emplace_back(opt);
}
}
// Run the link command.
if (!RunCommand("LINK", this->LinkCommand, this->Verbose, FORMAT_DECIMAL)) {
return -1;
}
return 0;
}
int cmVSLink::RunMT(std::string const& out, bool notify)
{
std::vector<std::string> mtCommand;
mtCommand.push_back(this->MtPath.empty() ? "mt" : this->MtPath);
mtCommand.emplace_back("/nologo");
// add the linker generated manifest if the file exists.
if (this->LinkGeneratesManifest &&
cmSystemTools::FileExists(this->LinkerManifestFile)) {
mtCommand.emplace_back("/manifest");
mtCommand.push_back(this->LinkerManifestFile);
}
for (auto const& m : this->UserManifests) {
mtCommand.emplace_back("/manifest");
mtCommand.push_back(m);
}
mtCommand.push_back(out);
if (notify) {
// Add an undocumented option that enables a special return
// code to notify us when the manifest is modified.
mtCommand.emplace_back("/notify_update");
}
int mtRet = 0;
if (!RunCommand("MT", mtCommand, this->Verbose, FORMAT_HEX, &mtRet,
mtRetIsUpdate)) {
return -1;
}
return mtRet;
}
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