CMake/Source/cmBuildCommand.cxx

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Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
2016-09-27 22:01:08 +03:00
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmBuildCommand.h"
#include "cmGlobalGenerator.h"
bool cmBuildCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
// Support the legacy signature of the command:
//
if (2 == args.size()) {
return this->TwoArgsSignature(args);
}
return this->MainSignature(args);
}
bool cmBuildCommand::MainSignature(std::vector<std::string> const& args)
{
if (args.empty()) {
this->SetError("requires at least one argument naming a CMake variable");
return false;
}
// The cmake variable in which to store the result.
const char* variable = args[0].c_str();
// Parse remaining arguments.
std::string configuration;
std::string project_name;
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std::string target;
enum Doing
{
DoingNone,
DoingConfiguration,
DoingProjectName,
DoingTarget
};
Doing doing = DoingNone;
for (unsigned int i = 1; i < args.size(); ++i) {
if (args[i] == "CONFIGURATION") {
doing = DoingConfiguration;
} else if (args[i] == "PROJECT_NAME") {
doing = DoingProjectName;
} else if (args[i] == "TARGET") {
doing = DoingTarget;
} else if (doing == DoingConfiguration) {
doing = DoingNone;
configuration = args[i];
} else if (doing == DoingProjectName) {
doing = DoingNone;
project_name = args[i];
} else if (doing == DoingTarget) {
doing = DoingNone;
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target = args[i];
} else {
std::ostringstream e;
e << "unknown argument \"" << args[i] << "\"";
this->SetError(e.str());
return false;
}
}
// If null/empty CONFIGURATION argument, cmake --build uses 'Debug'
// in the currently implemented multi-configuration global generators...
// so we put this code here to end up with the same default configuration
// as the original 2-arg build_command signature:
//
if (configuration.empty()) {
cmSystemTools::GetEnv("CMAKE_CONFIG_TYPE", configuration);
}
if (configuration.empty()) {
configuration = "Release";
}
if (!project_name.empty()) {
this->Makefile->IssueMessage(
cmake::AUTHOR_WARNING,
"Ignoring PROJECT_NAME option because it has no effect.");
}
std::string makecommand =
this->Makefile->GetGlobalGenerator()->GenerateCMakeBuildCommand(
target, configuration.c_str(), "",
this->Makefile->IgnoreErrorsCMP0061());
this->Makefile->AddDefinition(variable, makecommand.c_str());
return true;
}
bool cmBuildCommand::TwoArgsSignature(std::vector<std::string> const& args)
{
if (args.size() < 2) {
this->SetError("called with less than two arguments");
return false;
}
const char* define = args[0].c_str();
const char* cacheValue = this->Makefile->GetDefinition(define);
std::string configType;
if (!cmSystemTools::GetEnv("CMAKE_CONFIG_TYPE", configType) ||
configType.empty()) {
configType = "Release";
}
std::string makecommand =
this->Makefile->GetGlobalGenerator()->GenerateCMakeBuildCommand(
"", configType, "", this->Makefile->IgnoreErrorsCMP0061());
if (cacheValue) {
return true;
}
this->Makefile->AddCacheDefinition(define, makecommand.c_str(),
"Command used to build entire project "
"from the command line.",
cmState::STRING);
return true;
}