CMake/Source/cmakemain.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
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// include these first, otherwise there will be problems on Windows
// with GetCurrentDirectory() being redefined
#ifdef CMAKE_BUILD_WITH_CMAKE
#include "cmDocumentation.h"
#include "cmDynamicLoader.h"
#endif
#include "cmAlgorithms.h"
#include "cmGlobalGenerator.h"
#include "cmListFileCache.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmSourceFile.h"
#include "cmState.h"
#include "cmake.h"
#include "cmcmd.h"
#include <cmsys/Encoding.hxx>
#ifdef CMAKE_USE_LIBUV
#include "cm_uv.h"
#endif
#ifdef CMAKE_BUILD_WITH_CMAKE
static const char* cmDocumentationName[][2] = {
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{ CM_NULLPTR, " cmake - Cross-Platform Makefile Generator." },
{ CM_NULLPTR, CM_NULLPTR }
};
static const char* cmDocumentationUsage[][2] = {
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{ CM_NULLPTR, " cmake [options] <path-to-source>\n"
" cmake [options] <path-to-existing-build>" },
{ CM_NULLPTR,
"Specify a source directory to (re-)generate a build system for "
"it in the current working directory. Specify an existing build "
"directory to re-generate its build system." },
{ CM_NULLPTR, CM_NULLPTR }
};
static const char* cmDocumentationUsageNote[][2] = {
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{ CM_NULLPTR, "Run 'cmake --help' for more information." },
{ CM_NULLPTR, CM_NULLPTR }
};
#define CMAKE_BUILD_OPTIONS \
" <dir> = Project binary directory to be built.\n" \
" --target <tgt> = Build <tgt> instead of default targets.\n" \
" May only be specified once.\n" \
" --config <cfg> = For multi-configuration tools, choose <cfg>.\n" \
" --clean-first = Build target 'clean' first, then build.\n" \
" (To clean only, use --target 'clean'.)\n" \
" --use-stderr = Ignored. Behavior is default in CMake >= 3.0.\n" \
" -- = Pass remaining options to the native tool.\n"
static const char* cmDocumentationOptions[][2] = {
CMAKE_STANDARD_OPTIONS_TABLE,
{ "-E", "CMake command mode." },
{ "-L[A][H]", "List non-advanced cached variables." },
{ "--build <dir>", "Build a CMake-generated project binary tree." },
{ "-N", "View mode only." },
{ "-P <file>", "Process script mode." },
{ "--find-package", "Run in pkg-config like mode." },
{ "--graphviz=[file]", "Generate graphviz of dependencies, see "
"CMakeGraphVizOptions.cmake for more." },
{ "--system-information [file]", "Dump information about this system." },
{ "--debug-trycompile", "Do not delete the try_compile build tree. Only "
"useful on one try_compile at a time." },
{ "--debug-output", "Put cmake in a debug mode." },
{ "--trace", "Put cmake in trace mode." },
{ "--trace-expand", "Put cmake in trace mode with variable expansion." },
{ "--trace-source=<file>",
"Trace only this CMake file/module. Multiple options allowed." },
{ "--warn-uninitialized", "Warn about uninitialized values." },
{ "--warn-unused-vars", "Warn about unused variables." },
{ "--no-warn-unused-cli", "Don't warn about command line options." },
{ "--check-system-vars", "Find problems with variable usage in system "
"files." },
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{ CM_NULLPTR, CM_NULLPTR }
};
#endif
static int do_command(int ac, char const* const* av)
{
std::vector<std::string> args;
args.reserve(ac - 1);
args.push_back(av[0]);
args.insert(args.end(), av + 2, av + ac);
return cmcmd::ExecuteCMakeCommand(args);
}
int do_cmake(int ac, char const* const* av);
static int do_build(int ac, char const* const* av);
static cmMakefile* cmakemainGetMakefile(void* clientdata)
{
cmake* cm = (cmake*)clientdata;
if (cm && cm->GetDebugOutput()) {
cmGlobalGenerator* gg = cm->GetGlobalGenerator();
if (gg) {
return gg->GetCurrentMakefile();
}
}
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return CM_NULLPTR;
}
static std::string cmakemainGetStack(void* clientdata)
{
std::string msg;
cmMakefile* mf = cmakemainGetMakefile(clientdata);
if (mf) {
msg = mf->FormatListFileStack();
if (!msg.empty()) {
msg = "\n Called from: " + msg;
}
}
return msg;
}
static void cmakemainMessageCallback(const char* m, const char* /*unused*/,
bool& /*unused*/, void* clientdata)
{
std::cerr << m << cmakemainGetStack(clientdata) << std::endl << std::flush;
}
static void cmakemainProgressCallback(const char* m, float prog,
void* clientdata)
{
cmMakefile* mf = cmakemainGetMakefile(clientdata);
std::string dir;
if ((mf) && (strstr(m, "Configuring") == m) && (prog < 0)) {
dir = " ";
dir += mf->GetCurrentSourceDirectory();
} else if ((mf) && (strstr(m, "Generating") == m)) {
dir = " ";
dir += mf->GetCurrentBinaryDirectory();
}
if ((prog < 0) || (!dir.empty())) {
std::cout << "-- " << m << dir << cmakemainGetStack(clientdata)
<< std::endl;
}
std::cout.flush();
}
int main(int ac, char const* const* av)
{
cmsys::Encoding::CommandLineArguments args =
cmsys::Encoding::CommandLineArguments::Main(ac, av);
ac = args.argc();
av = args.argv();
cmSystemTools::EnableMSVCDebugHook();
cmSystemTools::FindCMakeResources(av[0]);
if (ac > 1) {
if (strcmp(av[1], "--build") == 0) {
return do_build(ac, av);
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}
if (strcmp(av[1], "-E") == 0) {
return do_command(ac, av);
}
}
int ret = do_cmake(ac, av);
#ifdef CMAKE_BUILD_WITH_CMAKE
cmDynamicLoader::FlushCache();
#endif
#ifdef CMAKE_USE_LIBUV
uv_loop_close(uv_default_loop());
#endif
return ret;
}
int do_cmake(int ac, char const* const* av)
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{
if (cmSystemTools::GetCurrentWorkingDirectory().empty()) {
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std::cerr << "Current working directory cannot be established."
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<< std::endl;
return 1;
}
#ifdef CMAKE_BUILD_WITH_CMAKE
cmDocumentation doc;
doc.addCMakeStandardDocSections();
if (doc.CheckOptions(ac, av)) {
// Construct and print requested documentation.
cmake hcm;
hcm.SetHomeDirectory("");
hcm.SetHomeOutputDirectory("");
hcm.AddCMakePaths();
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// the command line args are processed here so that you can do
// -DCMAKE_MODULE_PATH=/some/path and have this value accessible here
std::vector<std::string> args(av, av + ac);
hcm.SetCacheArgs(args);
std::vector<cmDocumentationEntry> generators;
hcm.GetGeneratorDocumentation(generators);
doc.SetName("cmake");
doc.SetSection("Name", cmDocumentationName);
doc.SetSection("Usage", cmDocumentationUsage);
if (ac == 1) {
doc.AppendSection("Usage", cmDocumentationUsageNote);
}
doc.AppendSection("Generators", generators);
doc.PrependSection("Options", cmDocumentationOptions);
return doc.PrintRequestedDocumentation(std::cout) ? 0 : 1;
}
#else
if (ac == 1) {
std::cout
<< "Bootstrap CMake should not be used outside CMake build process."
<< std::endl;
return 0;
}
#endif
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bool sysinfo = false;
bool list_cached = false;
bool list_all_cached = false;
bool list_help = false;
bool view_only = false;
cmake::WorkingMode workingMode = cmake::NORMAL_MODE;
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std::vector<std::string> args;
for (int i = 0; i < ac; ++i) {
if (strcmp(av[i], "-i") == 0) {
/* clang-format off */
std::cerr <<
"The \"cmake -i\" wizard mode is no longer supported.\n"
"Use the -D option to set cache values on the command line.\n"
"Use cmake-gui or ccmake for an interactive dialog.\n";
/* clang-format on */
return 1;
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}
if (strcmp(av[i], "--system-information") == 0) {
sysinfo = true;
} else if (strcmp(av[i], "-N") == 0) {
view_only = true;
} else if (strcmp(av[i], "-L") == 0) {
list_cached = true;
} else if (strcmp(av[i], "-LA") == 0) {
list_all_cached = true;
} else if (strcmp(av[i], "-LH") == 0) {
list_cached = true;
list_help = true;
} else if (strcmp(av[i], "-LAH") == 0) {
list_all_cached = true;
list_help = true;
} else if (cmHasLiteralPrefix(av[i], "-P")) {
if (i == ac - 1) {
cmSystemTools::Error("No script specified for argument -P");
} else {
workingMode = cmake::SCRIPT_MODE;
args.push_back(av[i]);
i++;
args.push_back(av[i]);
}
} else if (cmHasLiteralPrefix(av[i], "--find-package")) {
workingMode = cmake::FIND_PACKAGE_MODE;
args.push_back(av[i]);
} else {
args.push_back(av[i]);
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}
}
if (sysinfo) {
cmake cm;
cm.SetHomeDirectory("");
cm.SetHomeOutputDirectory("");
int ret = cm.GetSystemInformation(args);
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return ret;
}
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cmake cm;
cm.SetHomeDirectory("");
cm.SetHomeOutputDirectory("");
cmSystemTools::SetMessageCallback(cmakemainMessageCallback, (void*)&cm);
cm.SetProgressCallback(cmakemainProgressCallback, (void*)&cm);
cm.SetWorkingMode(workingMode);
int res = cm.Run(args, view_only);
if (list_cached || list_all_cached) {
std::cout << "-- Cache values" << std::endl;
std::vector<std::string> keys = cm.GetState()->GetCacheEntryKeys();
for (std::vector<std::string>::const_iterator it = keys.begin();
it != keys.end(); ++it) {
cmState::CacheEntryType t = cm.GetState()->GetCacheEntryType(*it);
if (t != cmState::INTERNAL && t != cmState::STATIC &&
t != cmState::UNINITIALIZED) {
const char* advancedProp =
cm.GetState()->GetCacheEntryProperty(*it, "ADVANCED");
if (list_all_cached || !advancedProp) {
if (list_help) {
std::cout << "// "
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<< cm.GetState()->GetCacheEntryProperty(*it,
"HELPSTRING")
<< std::endl;
}
std::cout << *it << ":" << cmState::CacheEntryTypeToString(t) << "="
<< cm.GetState()->GetCacheEntryValue(*it) << std::endl;
if (list_help) {
std::cout << std::endl;
}
}
}
}
}
// Always return a non-negative value. Windows tools do not always
// interpret negative return values as errors.
if (res != 0) {
return 1;
}
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return 0;
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}
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static int do_build(int ac, char const* const* av)
{
#ifndef CMAKE_BUILD_WITH_CMAKE
std::cerr << "This cmake does not support --build\n";
return -1;
#else
std::string target;
std::string config = "Debug";
std::string dir;
std::vector<std::string> nativeOptions;
bool clean = false;
bool hasTarget = false;
enum Doing
{
DoingNone,
DoingDir,
DoingTarget,
DoingConfig,
DoingNative
};
Doing doing = DoingDir;
for (int i = 2; i < ac; ++i) {
if (doing == DoingNative) {
nativeOptions.push_back(av[i]);
} else if (strcmp(av[i], "--target") == 0) {
if (!hasTarget) {
doing = DoingTarget;
hasTarget = true;
} else {
std::cerr << "'--target' may not be specified more than once.\n\n";
dir = "";
break;
}
} else if (strcmp(av[i], "--config") == 0) {
doing = DoingConfig;
} else if (strcmp(av[i], "--clean-first") == 0) {
clean = true;
doing = DoingNone;
} else if (strcmp(av[i], "--use-stderr") == 0) {
/* tolerate legacy option */
} else if (strcmp(av[i], "--") == 0) {
doing = DoingNative;
} else {
switch (doing) {
case DoingDir:
dir = cmSystemTools::CollapseFullPath(av[i]);
doing = DoingNone;
break;
case DoingTarget:
target = av[i];
doing = DoingNone;
break;
case DoingConfig:
config = av[i];
doing = DoingNone;
break;
default:
std::cerr << "Unknown argument " << av[i] << std::endl;
dir = "";
break;
}
}
}
if (dir.empty()) {
/* clang-format off */
std::cerr <<
"Usage: cmake --build <dir> [options] [-- [native-options]]\n"
"Options:\n"
CMAKE_BUILD_OPTIONS
;
/* clang-format on */
return 1;
}
cmake cm;
return cm.Build(dir, target, config, nativeOptions, clean);
#endif
}