CMake/Source/cmGlobalNinjaGenerator.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2011 Peter Collingbourne <peter@pcc.me.uk>
Copyright 2011 Nicolas Despres <nicolas.despres@gmail.com>
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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.
============================================================================*/
#include "cmGlobalNinjaGenerator.h"
#include "cmAlgorithms.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorExpressionEvaluationFile.h"
#include "cmGeneratorTarget.h"
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#include "cmLocalNinjaGenerator.h"
#include "cmMakefile.h"
#include "cmVersion.h"
#include <algorithm>
#include <assert.h>
#include <ctype.h>
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const char* cmGlobalNinjaGenerator::NINJA_BUILD_FILE = "build.ninja";
const char* cmGlobalNinjaGenerator::NINJA_RULES_FILE = "rules.ninja";
const char* cmGlobalNinjaGenerator::INDENT = " ";
void cmGlobalNinjaGenerator::Indent(std::ostream& os, int count)
{
for (int i = 0; i < count; ++i)
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os << cmGlobalNinjaGenerator::INDENT;
}
void cmGlobalNinjaGenerator::WriteDivider(std::ostream& os)
{
os << "# ======================================"
<< "=======================================\n";
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}
void cmGlobalNinjaGenerator::WriteComment(std::ostream& os,
const std::string& comment)
{
if (comment.empty())
return;
std::string::size_type lpos = 0;
std::string::size_type rpos;
os << "\n#############################################\n";
while ((rpos = comment.find('\n', lpos)) != std::string::npos) {
os << "# " << comment.substr(lpos, rpos - lpos) << "\n";
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lpos = rpos + 1;
}
os << "# " << comment.substr(lpos) << "\n\n";
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}
std::string cmGlobalNinjaGenerator::EncodeRuleName(std::string const& name)
{
// Ninja rule names must match "[a-zA-Z0-9_.-]+". Use ".xx" to encode
// "." and all invalid characters as hexadecimal.
std::string encoded;
for (std::string::const_iterator i = name.begin(); i != name.end(); ++i) {
if (isalnum(*i) || *i == '_' || *i == '-') {
encoded += *i;
} else {
char buf[16];
sprintf(buf, ".%02x", static_cast<unsigned int>(*i));
encoded += buf;
}
}
return encoded;
}
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static bool IsIdentChar(char c)
{
return ('a' <= c && c <= 'z') ||
('+' <= c && c <= '9') || // +,-./ and numbers
('A' <= c && c <= 'Z') || (c == '_') || (c == '$') || (c == '\\') ||
(c == ' ') || (c == ':');
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}
std::string cmGlobalNinjaGenerator::EncodeIdent(const std::string& ident,
std::ostream& vars)
{
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if (std::find_if(ident.begin(), ident.end(),
std::not1(std::ptr_fun(IsIdentChar))) != ident.end()) {
static unsigned VarNum = 0;
std::ostringstream names;
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names << "ident" << VarNum++;
vars << names.str() << " = " << ident << "\n";
return "$" + names.str();
} else {
std::string result = ident;
cmSystemTools::ReplaceString(result, " ", "$ ");
cmSystemTools::ReplaceString(result, ":", "$:");
return result;
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}
}
std::string cmGlobalNinjaGenerator::EncodeLiteral(const std::string& lit)
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{
std::string result = lit;
cmSystemTools::ReplaceString(result, "$", "$$");
cmSystemTools::ReplaceString(result, "\n", "$\n");
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return result;
}
std::string cmGlobalNinjaGenerator::EncodePath(const std::string& path)
{
std::string result = path;
#ifdef _WIN32
if (this->IsGCCOnWindows())
std::replace(result.begin(), result.end(), '\\', '/');
else
std::replace(result.begin(), result.end(), '/', '\\');
#endif
return EncodeLiteral(result);
}
std::string cmGlobalNinjaGenerator::EncodeDepfileSpace(const std::string& path)
{
std::string result = path;
cmSystemTools::ReplaceString(result, " ", "\\ ");
return result;
}
void cmGlobalNinjaGenerator::WriteBuild(
std::ostream& os, const std::string& comment, const std::string& rule,
const cmNinjaDeps& outputs, const cmNinjaDeps& explicitDeps,
const cmNinjaDeps& implicitDeps, const cmNinjaDeps& orderOnlyDeps,
const cmNinjaVars& variables, const std::string& rspfile, int cmdLineLimit,
bool* usedResponseFile)
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{
// Make sure there is a rule.
if (rule.empty()) {
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cmSystemTools::Error("No rule for WriteBuildStatement! called "
"with comment: ",
comment.c_str());
return;
}
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// Make sure there is at least one output file.
if (outputs.empty()) {
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cmSystemTools::Error("No output files for WriteBuildStatement! called "
"with comment: ",
comment.c_str());
return;
}
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cmGlobalNinjaGenerator::WriteComment(os, comment);
std::string arguments;
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// TODO: Better formatting for when there are multiple input/output files.
// Write explicit dependencies.
for (cmNinjaDeps::const_iterator i = explicitDeps.begin();
i != explicitDeps.end(); ++i) {
arguments += " " + EncodeIdent(EncodePath(*i), os);
}
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// Write implicit dependencies.
if (!implicitDeps.empty()) {
arguments += " |";
for (cmNinjaDeps::const_iterator i = implicitDeps.begin();
i != implicitDeps.end(); ++i)
arguments += " " + EncodeIdent(EncodePath(*i), os);
}
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// Write order-only dependencies.
if (!orderOnlyDeps.empty()) {
arguments += " ||";
for (cmNinjaDeps::const_iterator i = orderOnlyDeps.begin();
i != orderOnlyDeps.end(); ++i)
arguments += " " + EncodeIdent(EncodePath(*i), os);
}
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arguments += "\n";
std::string build;
// Write outputs files.
build += "build";
for (cmNinjaDeps::const_iterator i = outputs.begin(); i != outputs.end();
++i) {
build += " " + EncodeIdent(EncodePath(*i), os);
if (this->ComputingUnknownDependencies) {
this->CombinedBuildOutputs.insert(EncodePath(*i));
}
}
build += ":";
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// Write the rule.
build += " " + rule;
// Write the variables bound to this build statement.
std::ostringstream variable_assignments;
for (cmNinjaVars::const_iterator i = variables.begin(); i != variables.end();
++i)
cmGlobalNinjaGenerator::WriteVariable(variable_assignments, i->first,
i->second, "", 1);
// check if a response file rule should be used
std::string buildstr = build;
std::string assignments = variable_assignments.str();
const std::string& args = arguments;
bool useResponseFile = false;
if (cmdLineLimit < 0 ||
(cmdLineLimit > 0 &&
(args.size() + buildstr.size() + assignments.size()) >
static_cast<size_t>(cmdLineLimit))) {
variable_assignments.str(std::string());
cmGlobalNinjaGenerator::WriteVariable(variable_assignments, "RSP_FILE",
rspfile, "", 1);
assignments += variable_assignments.str();
useResponseFile = true;
}
if (usedResponseFile) {
*usedResponseFile = useResponseFile;
}
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os << buildstr << args << assignments;
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}
void cmGlobalNinjaGenerator::WritePhonyBuild(
std::ostream& os, const std::string& comment, const cmNinjaDeps& outputs,
const cmNinjaDeps& explicitDeps, const cmNinjaDeps& implicitDeps,
const cmNinjaDeps& orderOnlyDeps, const cmNinjaVars& variables)
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{
this->WriteBuild(os, comment, "phony", outputs, explicitDeps, implicitDeps,
orderOnlyDeps, variables);
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}
void cmGlobalNinjaGenerator::AddCustomCommandRule()
{
this->AddRule("CUSTOM_COMMAND", "$COMMAND", "$DESC",
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"Rule for running custom commands.",
/*depfile*/ "",
/*deptype*/ "",
/*rspfile*/ "",
/*rspcontent*/ "",
/*restat*/ "", // bound on each build statement as needed
/*generator*/ false);
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}
void cmGlobalNinjaGenerator::WriteCustomCommandBuild(
const std::string& command, const std::string& description,
const std::string& comment, bool uses_terminal, bool restat,
const cmNinjaDeps& outputs, const cmNinjaDeps& deps,
const cmNinjaDeps& orderOnly)
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{
std::string cmd = command;
#ifdef _WIN32
if (cmd.empty())
// TODO Shouldn't an empty command be handled by ninja?
cmd = "cmd.exe /c";
#endif
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this->AddCustomCommandRule();
cmNinjaVars vars;
vars["COMMAND"] = cmd;
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vars["DESC"] = EncodeLiteral(description);
if (restat) {
vars["restat"] = "1";
}
if (uses_terminal && SupportsConsolePool()) {
vars["pool"] = "console";
}
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this->WriteBuild(*this->BuildFileStream, comment, "CUSTOM_COMMAND", outputs,
deps, cmNinjaDeps(), orderOnly, vars);
if (this->ComputingUnknownDependencies) {
// we need to track every dependency that comes in, since we are trying
// to find dependencies that are side effects of build commands
for (cmNinjaDeps::const_iterator i = deps.begin(); i != deps.end(); ++i) {
this->CombinedCustomCommandExplicitDependencies.insert(EncodePath(*i));
}
}
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}
void cmGlobalNinjaGenerator::AddMacOSXContentRule()
{
cmLocalGenerator* lg = this->LocalGenerators[0];
std::ostringstream cmd;
cmd << lg->ConvertToOutputFormat(cmSystemTools::GetCMakeCommand(),
cmOutputConverter::SHELL)
<< " -E copy $in $out";
this->AddRule("COPY_OSX_CONTENT", cmd.str(), "Copying OS X Content $out",
"Rule for copying OS X bundle content file.",
/*depfile*/ "",
/*deptype*/ "",
/*rspfile*/ "",
/*rspcontent*/ "",
/*restat*/ "",
/*generator*/ false);
}
void cmGlobalNinjaGenerator::WriteMacOSXContentBuild(const std::string& input,
const std::string& output)
{
this->AddMacOSXContentRule();
cmNinjaDeps outputs;
outputs.push_back(output);
cmNinjaDeps deps;
deps.push_back(input);
cmNinjaVars vars;
this->WriteBuild(*this->BuildFileStream, "", "COPY_OSX_CONTENT", outputs,
deps, cmNinjaDeps(), cmNinjaDeps(), cmNinjaVars());
}
void cmGlobalNinjaGenerator::WriteRule(
std::ostream& os, const std::string& name, const std::string& command,
const std::string& description, const std::string& comment,
const std::string& depfile, const std::string& deptype,
const std::string& rspfile, const std::string& rspcontent,
const std::string& restat, bool generator)
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{
// Make sure the rule has a name.
if (name.empty()) {
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cmSystemTools::Error("No name given for WriteRuleStatement! called "
"with comment: ",
comment.c_str());
return;
}
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// Make sure a command is given.
if (command.empty()) {
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cmSystemTools::Error("No command given for WriteRuleStatement! called "
"with comment: ",
comment.c_str());
return;
}
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cmGlobalNinjaGenerator::WriteComment(os, comment);
// Write the rule.
os << "rule " << name << "\n";
// Write the depfile if any.
if (!depfile.empty()) {
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cmGlobalNinjaGenerator::Indent(os, 1);
os << "depfile = " << depfile << "\n";
}
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// Write the deptype if any.
if (!deptype.empty()) {
cmGlobalNinjaGenerator::Indent(os, 1);
os << "deps = " << deptype << "\n";
}
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// Write the command.
cmGlobalNinjaGenerator::Indent(os, 1);
os << "command = " << command << "\n";
// Write the description if any.
if (!description.empty()) {
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cmGlobalNinjaGenerator::Indent(os, 1);
os << "description = " << description << "\n";
}
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if (!rspfile.empty()) {
if (rspcontent.empty()) {
cmSystemTools::Error("No rspfile_content given!", comment.c_str());
return;
}
cmGlobalNinjaGenerator::Indent(os, 1);
os << "rspfile = " << rspfile << "\n";
cmGlobalNinjaGenerator::Indent(os, 1);
os << "rspfile_content = " << rspcontent << "\n";
}
if (!restat.empty()) {
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cmGlobalNinjaGenerator::Indent(os, 1);
os << "restat = " << restat << "\n";
}
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if (generator) {
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cmGlobalNinjaGenerator::Indent(os, 1);
os << "generator = 1\n";
}
os << "\n";
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}
void cmGlobalNinjaGenerator::WriteVariable(std::ostream& os,
const std::string& name,
const std::string& value,
const std::string& comment,
int indent)
{
// Make sure we have a name.
if (name.empty()) {
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cmSystemTools::Error("No name given for WriteVariable! called "
"with comment: ",
comment.c_str());
return;
}
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// Do not add a variable if the value is empty.
std::string val = cmSystemTools::TrimWhitespace(value);
if (val.empty()) {
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return;
}
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cmGlobalNinjaGenerator::WriteComment(os, comment);
cmGlobalNinjaGenerator::Indent(os, indent);
os << name << " = " << val << "\n";
}
void cmGlobalNinjaGenerator::WriteInclude(std::ostream& os,
const std::string& filename,
const std::string& comment)
{
cmGlobalNinjaGenerator::WriteComment(os, comment);
os << "include " << filename << "\n";
}
void cmGlobalNinjaGenerator::WriteDefault(std::ostream& os,
const cmNinjaDeps& targets,
const std::string& comment)
{
cmGlobalNinjaGenerator::WriteComment(os, comment);
os << "default";
for (cmNinjaDeps::const_iterator i = targets.begin(); i != targets.end();
++i)
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os << " " << *i;
os << "\n";
}
cmGlobalNinjaGenerator::cmGlobalNinjaGenerator(cmake* cm)
: cmGlobalCommonGenerator(cm)
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, BuildFileStream(0)
, RulesFileStream(0)
, CompileCommandsStream(0)
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, Rules()
, AllDependencies()
, UsingGCCOnWindows(false)
, ComputingUnknownDependencies(false)
, PolicyCMP0058(cmPolicies::WARN)
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{
#ifdef _WIN32
cm->GetState()->SetWindowsShell(true);
#endif
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// // Ninja is not ported to non-Unix OS yet.
// this->ForceUnixPaths = true;
this->FindMakeProgramFile = "CMakeNinjaFindMake.cmake";
}
// Virtual public methods.
cmLocalGenerator* cmGlobalNinjaGenerator::CreateLocalGenerator(cmMakefile* mf)
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{
return new cmLocalNinjaGenerator(this, mf);
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}
void cmGlobalNinjaGenerator::GetDocumentation(cmDocumentationEntry& entry)
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{
entry.Name = cmGlobalNinjaGenerator::GetActualName();
entry.Brief = "Generates build.ninja files.";
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}
// Implemented in all cmGlobaleGenerator sub-classes.
// Used in:
// Source/cmLocalGenerator.cxx
// Source/cmake.cxx
void cmGlobalNinjaGenerator::Generate()
{
// Check minimum Ninja version.
if (cmSystemTools::VersionCompare(cmSystemTools::OP_LESS,
this->NinjaVersion.c_str(),
RequiredNinjaVersion().c_str())) {
std::ostringstream msg;
msg << "The detected version of Ninja (" << this->NinjaVersion;
msg << ") is less than the version of Ninja required by CMake (";
msg << this->RequiredNinjaVersion() << ").";
this->GetCMakeInstance()->IssueMessage(cmake::FATAL_ERROR, msg.str());
return;
}
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this->OpenBuildFileStream();
this->OpenRulesFileStream();
this->InitOutputPathPrefix();
this->TargetAll = this->NinjaOutputPath("all");
this->CMakeCacheFile = this->NinjaOutputPath("CMakeCache.txt");
this->PolicyCMP0058 =
this->LocalGenerators[0]->GetMakefile()->GetPolicyStatus(
cmPolicies::CMP0058);
this->ComputingUnknownDependencies =
(this->PolicyCMP0058 == cmPolicies::OLD ||
this->PolicyCMP0058 == cmPolicies::WARN);
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this->cmGlobalGenerator::Generate();
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this->WriteAssumedSourceDependencies();
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this->WriteTargetAliases(*this->BuildFileStream);
this->WriteFolderTargets(*this->BuildFileStream);
this->WriteUnknownExplicitDependencies(*this->BuildFileStream);
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this->WriteBuiltinTargets(*this->BuildFileStream);
if (cmSystemTools::GetErrorOccuredFlag()) {
this->RulesFileStream->setstate(std::ios_base::failbit);
this->BuildFileStream->setstate(std::ios_base::failbit);
}
this->CloseCompileCommandsStream();
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this->CloseRulesFileStream();
this->CloseBuildFileStream();
}
void cmGlobalNinjaGenerator::FindMakeProgram(cmMakefile* mf)
{
this->cmGlobalGenerator::FindMakeProgram(mf);
if (const char* ninjaCommand = mf->GetDefinition("CMAKE_MAKE_PROGRAM")) {
this->NinjaCommand = ninjaCommand;
std::vector<std::string> command;
command.push_back(this->NinjaCommand);
command.push_back("--version");
std::string version;
cmSystemTools::RunSingleCommand(command, &version, 0, 0, 0,
cmSystemTools::OUTPUT_NONE);
this->NinjaVersion = cmSystemTools::TrimWhitespace(version);
}
}
void cmGlobalNinjaGenerator::EnableLanguage(
std::vector<std::string> const& langs, cmMakefile* mf, bool optional)
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{
if (std::find(langs.begin(), langs.end(), "Fortran") != langs.end()) {
cmSystemTools::Error("The Ninja generator does not support Fortran yet.");
}
this->cmGlobalGenerator::EnableLanguage(langs, mf, optional);
for (std::vector<std::string>::const_iterator l = langs.begin();
l != langs.end(); ++l) {
if (*l == "NONE") {
continue;
}
this->ResolveLanguageCompiler(*l, mf, optional);
}
#ifdef _WIN32
if (mf->IsOn("CMAKE_COMPILER_IS_MINGW") ||
strcmp(mf->GetSafeDefinition("CMAKE_C_COMPILER_ID"), "GNU") == 0 ||
strcmp(mf->GetSafeDefinition("CMAKE_CXX_COMPILER_ID"), "GNU") == 0 ||
strcmp(mf->GetSafeDefinition("CMAKE_C_SIMULATE_ID"), "GNU") == 0 ||
strcmp(mf->GetSafeDefinition("CMAKE_CXX_SIMULATE_ID"), "GNU") == 0) {
this->UsingGCCOnWindows = true;
}
#endif
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}
// Implemented by:
// cmGlobalUnixMakefileGenerator3
// cmGlobalGhsMultiGenerator
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// cmGlobalVisualStudio10Generator
// cmGlobalVisualStudio7Generator
// cmGlobalXCodeGenerator
// Called by:
// cmGlobalGenerator::Build()
void cmGlobalNinjaGenerator::GenerateBuildCommand(
std::vector<std::string>& makeCommand, const std::string& makeProgram,
const std::string& /*projectName*/, const std::string& /*projectDir*/,
const std::string& targetName, const std::string& /*config*/, bool /*fast*/,
bool verbose, std::vector<std::string> const& makeOptions)
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{
makeCommand.push_back(this->SelectMakeProgram(makeProgram));
if (verbose) {
makeCommand.push_back("-v");
}
makeCommand.insert(makeCommand.end(), makeOptions.begin(),
makeOptions.end());
if (!targetName.empty()) {
if (targetName == "clean") {
makeCommand.push_back("-t");
makeCommand.push_back("clean");
} else {
makeCommand.push_back(targetName);
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}
}
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}
// Non-virtual public methods.
void cmGlobalNinjaGenerator::AddRule(
const std::string& name, const std::string& command,
const std::string& description, const std::string& comment,
const std::string& depfile, const std::string& deptype,
const std::string& rspfile, const std::string& rspcontent,
const std::string& restat, bool generator)
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{
// Do not add the same rule twice.
if (this->HasRule(name)) {
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return;
}
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this->Rules.insert(name);
cmGlobalNinjaGenerator::WriteRule(*this->RulesFileStream, name, command,
description, comment, depfile, deptype,
rspfile, rspcontent, restat, generator);
this->RuleCmdLength[name] = (int)command.size();
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}
bool cmGlobalNinjaGenerator::HasRule(const std::string& name)
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{
RulesSetType::const_iterator rule = this->Rules.find(name);
return (rule != this->Rules.end());
}
// Private virtual overrides
std::string cmGlobalNinjaGenerator::GetEditCacheCommand() const
{
// Ninja by design does not run interactive tools in the terminal,
// so our only choice is cmake-gui.
return cmSystemTools::GetCMakeGUICommand();
}
void cmGlobalNinjaGenerator::ComputeTargetObjectDirectory(
cmGeneratorTarget* gt) const
{
// Compute full path to object file directory for this target.
std::string dir;
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dir += gt->LocalGenerator->GetCurrentBinaryDirectory();
dir += "/";
dir += gt->LocalGenerator->GetTargetDirectory(gt);
dir += "/";
gt->ObjectDirectory = dir;
}
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// Private methods
void cmGlobalNinjaGenerator::OpenBuildFileStream()
{
// Compute Ninja's build file path.
std::string buildFilePath =
this->GetCMakeInstance()->GetHomeOutputDirectory();
buildFilePath += "/";
buildFilePath += cmGlobalNinjaGenerator::NINJA_BUILD_FILE;
// Get a stream where to generate things.
if (!this->BuildFileStream) {
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this->BuildFileStream = new cmGeneratedFileStream(buildFilePath.c_str());
if (!this->BuildFileStream) {
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// An error message is generated by the constructor if it cannot
// open the file.
return;
}
}
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// Write the do not edit header.
this->WriteDisclaimer(*this->BuildFileStream);
// Write a comment about this file.
*this->BuildFileStream
<< "# This file contains all the build statements describing the\n"
<< "# compilation DAG.\n\n";
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}
void cmGlobalNinjaGenerator::CloseBuildFileStream()
{
if (this->BuildFileStream) {
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delete this->BuildFileStream;
this->BuildFileStream = 0;
} else {
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cmSystemTools::Error("Build file stream was not open.");
}
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}
void cmGlobalNinjaGenerator::OpenRulesFileStream()
{
// Compute Ninja's build file path.
std::string rulesFilePath =
this->GetCMakeInstance()->GetHomeOutputDirectory();
rulesFilePath += "/";
rulesFilePath += cmGlobalNinjaGenerator::NINJA_RULES_FILE;
// Get a stream where to generate things.
if (!this->RulesFileStream) {
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this->RulesFileStream = new cmGeneratedFileStream(rulesFilePath.c_str());
if (!this->RulesFileStream) {
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// An error message is generated by the constructor if it cannot
// open the file.
return;
}
}
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// Write the do not edit header.
this->WriteDisclaimer(*this->RulesFileStream);
// Write comment about this file.
/* clang-format off */
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*this->RulesFileStream
<< "# This file contains all the rules used to get the outputs files\n"
<< "# built from the input files.\n"
<< "# It is included in the main '" << NINJA_BUILD_FILE << "'.\n\n"
;
/* clang-format on */
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}
void cmGlobalNinjaGenerator::CloseRulesFileStream()
{
if (this->RulesFileStream) {
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delete this->RulesFileStream;
this->RulesFileStream = 0;
} else {
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cmSystemTools::Error("Rules file stream was not open.");
}
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}
static void EnsureTrailingSlash(std::string& path)
{
if (path.empty()) {
return;
}
std::string::value_type last = path[path.size() - 1];
#ifdef _WIN32
if (last != '\\') {
path += '\\';
}
#else
if (last != '/') {
path += '/';
}
#endif
}
std::string cmGlobalNinjaGenerator::ConvertToNinjaPath(const std::string& path)
{
cmLocalNinjaGenerator* ng =
static_cast<cmLocalNinjaGenerator*>(this->LocalGenerators[0]);
std::string convPath = ng->Convert(path, cmOutputConverter::HOME_OUTPUT);
convPath = this->NinjaOutputPath(convPath);
#ifdef _WIN32
std::replace(convPath.begin(), convPath.end(), '/', '\\');
#endif
return convPath;
}
std::string cmGlobalNinjaGenerator::ConvertToNinjaFolderRule(
const std::string& path)
{
cmLocalNinjaGenerator* ng =
static_cast<cmLocalNinjaGenerator*>(this->LocalGenerators[0]);
std::string convPath = ng->Convert(path + "/all", cmOutputConverter::HOME);
convPath = this->NinjaOutputPath(convPath);
#ifdef _WIN32
std::replace(convPath.begin(), convPath.end(), '/', '\\');
#endif
return convPath;
}
void cmGlobalNinjaGenerator::AddCXXCompileCommand(
const std::string& commandLine, const std::string& sourceFile)
{
// Compute Ninja's build file path.
std::string buildFileDir =
this->GetCMakeInstance()->GetHomeOutputDirectory();
if (!this->CompileCommandsStream) {
std::string buildFilePath = buildFileDir + "/compile_commands.json";
// Get a stream where to generate things.
this->CompileCommandsStream =
new cmGeneratedFileStream(buildFilePath.c_str());
*this->CompileCommandsStream << "[";
} else {
*this->CompileCommandsStream << "," << std::endl;
}
std::string sourceFileName = sourceFile;
if (!cmSystemTools::FileIsFullPath(sourceFileName.c_str())) {
sourceFileName = cmSystemTools::CollapseFullPath(
sourceFileName, this->GetCMakeInstance()->GetHomeOutputDirectory());
}
/* clang-format off */
*this->CompileCommandsStream << "\n{\n"
<< " \"directory\": \""
<< cmGlobalGenerator::EscapeJSON(buildFileDir) << "\",\n"
<< " \"command\": \""
<< cmGlobalGenerator::EscapeJSON(commandLine) << "\",\n"
<< " \"file\": \""
<< cmGlobalGenerator::EscapeJSON(sourceFileName) << "\"\n"
<< "}";
/* clang-format on */
}
void cmGlobalNinjaGenerator::CloseCompileCommandsStream()
{
if (this->CompileCommandsStream) {
*this->CompileCommandsStream << "\n]";
delete this->CompileCommandsStream;
this->CompileCommandsStream = 0;
}
}
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void cmGlobalNinjaGenerator::WriteDisclaimer(std::ostream& os)
{
os << "# CMAKE generated file: DO NOT EDIT!\n"
<< "# Generated by \"" << this->GetName() << "\""
<< " Generator, CMake Version " << cmVersion::GetMajorVersion() << "."
<< cmVersion::GetMinorVersion() << "\n\n";
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}
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void cmGlobalNinjaGenerator::AddDependencyToAll(cmGeneratorTarget* target)
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{
this->AppendTargetOutputs(target, this->AllDependencies);
}
void cmGlobalNinjaGenerator::AddDependencyToAll(const std::string& input)
{
this->AllDependencies.push_back(input);
}
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void cmGlobalNinjaGenerator::WriteAssumedSourceDependencies()
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{
for (std::map<std::string, std::set<std::string> >::iterator i =
this->AssumedSourceDependencies.begin();
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i != this->AssumedSourceDependencies.end(); ++i) {
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cmNinjaDeps deps;
std::copy(i->second.begin(), i->second.end(), std::back_inserter(deps));
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WriteCustomCommandBuild(/*command=*/"", /*description=*/"",
"Assume dependencies for generated source file.",
/*uses_terminal*/ false,
/*restat*/ true, cmNinjaDeps(1, i->first), deps);
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}
}
void cmGlobalNinjaGenerator::AppendTargetOutputs(
cmGeneratorTarget const* target, cmNinjaDeps& outputs)
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{
std::string configName =
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target->Target->GetMakefile()->GetSafeDefinition("CMAKE_BUILD_TYPE");
// for frameworks, we want the real name, not smple name
// frameworks always appear versioned, and the build.ninja
// will always attempt to manage symbolic links instead
// of letting cmOSXBundleGenerator do it.
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bool realname = target->IsFrameworkOnApple();
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switch (target->GetType()) {
case cmState::EXECUTABLE:
case cmState::SHARED_LIBRARY:
case cmState::STATIC_LIBRARY:
case cmState::MODULE_LIBRARY: {
outputs.push_back(this->ConvertToNinjaPath(
target->GetFullPath(configName, false, realname)));
break;
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}
case cmState::OBJECT_LIBRARY:
case cmState::UTILITY: {
std::string path =
target->GetLocalGenerator()->GetCurrentBinaryDirectory() +
std::string("/") + target->GetName();
outputs.push_back(this->ConvertToNinjaPath(path));
break;
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}
case cmState::GLOBAL_TARGET:
// Always use the target in HOME instead of an unused duplicate in a
// subdirectory.
outputs.push_back(this->NinjaOutputPath(target->GetName()));
break;
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default:
return;
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}
}
void cmGlobalNinjaGenerator::AppendTargetDepends(
cmGeneratorTarget const* target, cmNinjaDeps& outputs)
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{
if (target->GetType() == cmState::GLOBAL_TARGET) {
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// Global targets only depend on other utilities, which may not appear in
// the TargetDepends set (e.g. "all").
std::set<std::string> const& utils = target->GetUtilities();
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std::copy(utils.begin(), utils.end(), std::back_inserter(outputs));
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} else {
cmNinjaDeps outs;
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cmTargetDependSet const& targetDeps = this->GetTargetDirectDepends(target);
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for (cmTargetDependSet::const_iterator i = targetDeps.begin();
i != targetDeps.end(); ++i) {
if ((*i)->GetType() == cmState::INTERFACE_LIBRARY) {
continue;
}
this->AppendTargetOutputs(*i, outs);
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}
std::sort(outs.begin(), outs.end());
outputs.insert(outputs.end(), outs.begin(), outs.end());
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}
}
void cmGlobalNinjaGenerator::AddTargetAlias(const std::string& alias,
cmGeneratorTarget* target)
{
std::string buildAlias = this->NinjaOutputPath(alias);
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cmNinjaDeps outputs;
this->AppendTargetOutputs(target, outputs);
// Mark the target's outputs as ambiguous to ensure that no other target uses
// the output as an alias.
for (cmNinjaDeps::iterator i = outputs.begin(); i != outputs.end(); ++i)
TargetAliases[*i] = 0;
// Insert the alias into the map. If the alias was already present in the
// map and referred to another target, mark it as ambiguous.
std::pair<TargetAliasMap::iterator, bool> newAlias =
TargetAliases.insert(std::make_pair(buildAlias, target));
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if (newAlias.second && newAlias.first->second != target)
newAlias.first->second = 0;
}
void cmGlobalNinjaGenerator::WriteTargetAliases(std::ostream& os)
{
cmGlobalNinjaGenerator::WriteDivider(os);
os << "# Target aliases.\n\n";
for (TargetAliasMap::const_iterator i = TargetAliases.begin();
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i != TargetAliases.end(); ++i) {
// Don't write ambiguous aliases.
if (!i->second)
continue;
cmNinjaDeps deps;
this->AppendTargetOutputs(i->second, deps);
this->WritePhonyBuild(os, "", cmNinjaDeps(1, i->first), deps);
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}
}
void cmGlobalNinjaGenerator::WriteFolderTargets(std::ostream& os)
{
cmGlobalNinjaGenerator::WriteDivider(os);
os << "# Folder targets.\n\n";
std::map<std::string, cmNinjaDeps> targetsPerFolder;
for (std::vector<cmLocalGenerator*>::const_iterator lgi =
this->LocalGenerators.begin();
lgi != this->LocalGenerators.end(); ++lgi) {
cmLocalGenerator const* lg = *lgi;
const std::string currentSourceFolder(
lg->GetStateSnapshot().GetDirectory().GetCurrentSource());
// The directory-level rule should depend on the target-level rules
// for all targets in the directory.
targetsPerFolder[currentSourceFolder] = cmNinjaDeps();
for (std::vector<cmGeneratorTarget*>::const_iterator ti =
lg->GetGeneratorTargets().begin();
ti != lg->GetGeneratorTargets().end(); ++ti) {
cmGeneratorTarget const* gt = *ti;
cmState::TargetType const type = gt->GetType();
if ((type == cmState::EXECUTABLE || type == cmState::STATIC_LIBRARY ||
type == cmState::SHARED_LIBRARY ||
type == cmState::MODULE_LIBRARY ||
type == cmState::OBJECT_LIBRARY || type == cmState::UTILITY) &&
!gt->GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
targetsPerFolder[currentSourceFolder].push_back(gt->GetName());
}
}
// The directory-level rule should depend on the directory-level
// rules of the subdirectories.
std::vector<cmState::Snapshot> const& children =
lg->GetStateSnapshot().GetChildren();
for (std::vector<cmState::Snapshot>::const_iterator stateIt =
children.begin();
stateIt != children.end(); ++stateIt) {
targetsPerFolder[currentSourceFolder].push_back(
this->ConvertToNinjaFolderRule(
stateIt->GetDirectory().GetCurrentSource()));
}
}
std::string const rootSourceDir =
this->LocalGenerators[0]->GetSourceDirectory();
for (std::map<std::string, cmNinjaDeps>::const_iterator it =
targetsPerFolder.begin();
it != targetsPerFolder.end(); ++it) {
cmGlobalNinjaGenerator::WriteDivider(os);
std::string const& currentSourceDir = it->first;
// Do not generate a rule for the root source dir.
if (rootSourceDir.length() >= currentSourceDir.length()) {
continue;
}
std::string const comment = "Folder: " + currentSourceDir;
cmNinjaDeps output(1);
output.push_back(this->ConvertToNinjaFolderRule(currentSourceDir));
this->WritePhonyBuild(os, comment, output, it->second);
}
}
void cmGlobalNinjaGenerator::WriteUnknownExplicitDependencies(std::ostream& os)
{
if (!this->ComputingUnknownDependencies) {
return;
}
// We need to collect the set of known build outputs.
// Start with those generated by WriteBuild calls.
// No other method needs this so we can take ownership
// of the set locally and throw it out when we are done.
std::set<std::string> knownDependencies;
knownDependencies.swap(this->CombinedBuildOutputs);
// now write out the unknown explicit dependencies.
// union the configured files, evaluations files and the
// CombinedBuildOutputs,
// and then difference with CombinedExplicitDependencies to find the explicit
// dependencies that we have no rule for
cmGlobalNinjaGenerator::WriteDivider(os);
/* clang-format off */
os << "# Unknown Build Time Dependencies.\n"
<< "# Tell Ninja that they may appear as side effects of build rules\n"
<< "# otherwise ordered by order-only dependencies.\n\n";
/* clang-format on */
// get the list of files that cmake itself has generated as a
// product of configuration.
for (std::vector<cmLocalGenerator*>::const_iterator i =
this->LocalGenerators.begin();
i != this->LocalGenerators.end(); ++i) {
// get the vector of files created by this makefile and convert them
// to ninja paths, which are all relative in respect to the build directory
const std::vector<std::string>& files =
(*i)->GetMakefile()->GetOutputFiles();
typedef std::vector<std::string>::const_iterator vect_it;
for (vect_it j = files.begin(); j != files.end(); ++j) {
knownDependencies.insert(this->ConvertToNinjaPath(*j));
}
// get list files which are implicit dependencies as well and will be phony
// for rebuild manifest
std::vector<std::string> const& lf = (*i)->GetMakefile()->GetListFiles();
typedef std::vector<std::string>::const_iterator vect_it;
for (vect_it j = lf.begin(); j != lf.end(); ++j) {
knownDependencies.insert(this->ConvertToNinjaPath(*j));
}
std::vector<cmGeneratorExpressionEvaluationFile*> const& ef =
(*i)->GetMakefile()->GetEvaluationFiles();
for (std::vector<cmGeneratorExpressionEvaluationFile*>::const_iterator li =
ef.begin();
li != ef.end(); ++li) {
// get all the files created by generator expressions and convert them
// to ninja paths
std::vector<std::string> evaluationFiles = (*li)->GetFiles();
for (vect_it j = evaluationFiles.begin(); j != evaluationFiles.end();
++j) {
knownDependencies.insert(this->ConvertToNinjaPath(*j));
}
}
}
knownDependencies.insert(this->CMakeCacheFile);
for (TargetAliasMap::const_iterator i = this->TargetAliases.begin();
i != this->TargetAliases.end(); ++i) {
knownDependencies.insert(this->ConvertToNinjaPath(i->first));
}
// remove all source files we know will exist.
typedef std::map<std::string, std::set<std::string> >::const_iterator map_it;
for (map_it i = this->AssumedSourceDependencies.begin();
i != this->AssumedSourceDependencies.end(); ++i) {
knownDependencies.insert(this->ConvertToNinjaPath(i->first));
}
// now we difference with CombinedCustomCommandExplicitDependencies to find
// the list of items we know nothing about.
// We have encoded all the paths in CombinedCustomCommandExplicitDependencies
// and knownDependencies so no matter if unix or windows paths they
// should all match now.
std::vector<std::string> unknownExplicitDepends;
this->CombinedCustomCommandExplicitDependencies.erase(this->TargetAll);
std::set_difference(this->CombinedCustomCommandExplicitDependencies.begin(),
this->CombinedCustomCommandExplicitDependencies.end(),
knownDependencies.begin(), knownDependencies.end(),
std::back_inserter(unknownExplicitDepends));
std::string const rootBuildDirectory =
this->GetCMakeInstance()->GetHomeOutputDirectory();
bool const inSourceBuild =
(rootBuildDirectory == this->GetCMakeInstance()->GetHomeDirectory());
std::vector<std::string> warnExplicitDepends;
for (std::vector<std::string>::const_iterator i =
unknownExplicitDepends.begin();
i != unknownExplicitDepends.end(); ++i) {
// verify the file is in the build directory
std::string const absDepPath =
cmSystemTools::CollapseFullPath(*i, rootBuildDirectory.c_str());
bool const inBuildDir =
cmSystemTools::IsSubDirectory(absDepPath, rootBuildDirectory);
if (inBuildDir) {
cmNinjaDeps deps(1, *i);
this->WritePhonyBuild(os, "", deps, cmNinjaDeps());
if (this->PolicyCMP0058 == cmPolicies::WARN && !inSourceBuild &&
warnExplicitDepends.size() < 10) {
warnExplicitDepends.push_back(*i);
}
}
}
if (!warnExplicitDepends.empty()) {
std::ostringstream w;
/* clang-format off */
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w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0058) << "\n"
"This project specifies custom command DEPENDS on files "
"in the build tree that are not specified as the OUTPUT or "
"BYPRODUCTS of any add_custom_command or add_custom_target:\n"
" " << cmJoin(warnExplicitDepends, "\n ") <<
"\n"
"For compatibility with versions of CMake that did not have "
"the BYPRODUCTS option, CMake is generating phony rules for "
"such files to convince 'ninja' to build."
"\n"
"Project authors should add the missing BYPRODUCTS or OUTPUT "
"options to the custom commands that produce these files."
;
/* clang-format on */
this->GetCMakeInstance()->IssueMessage(cmake::AUTHOR_WARNING, w.str());
}
}
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void cmGlobalNinjaGenerator::WriteBuiltinTargets(std::ostream& os)
{
// Write headers.
cmGlobalNinjaGenerator::WriteDivider(os);
os << "# Built-in targets\n\n";
this->WriteTargetAll(os);
this->WriteTargetRebuildManifest(os);
this->WriteTargetClean(os);
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this->WriteTargetHelp(os);
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}
void cmGlobalNinjaGenerator::WriteTargetAll(std::ostream& os)
{
cmNinjaDeps outputs;
outputs.push_back(this->TargetAll);
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this->WritePhonyBuild(os, "The main all target.", outputs,
this->AllDependencies);
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if (!this->HasOutputPathPrefix()) {
cmGlobalNinjaGenerator::WriteDefault(os, outputs,
"Make the all target the default.");
}
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}
void cmGlobalNinjaGenerator::WriteTargetRebuildManifest(std::ostream& os)
{
cmLocalGenerator* lg = this->LocalGenerators[0];
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std::ostringstream cmd;
cmd << lg->ConvertToOutputFormat(cmSystemTools::GetCMakeCommand(),
cmOutputConverter::SHELL)
<< " -H"
<< lg->ConvertToOutputFormat(lg->GetSourceDirectory(),
cmOutputConverter::SHELL)
<< " -B"
<< lg->ConvertToOutputFormat(lg->GetBinaryDirectory(),
cmOutputConverter::SHELL);
WriteRule(*this->RulesFileStream, "RERUN_CMAKE", cmd.str(),
"Re-running CMake...", "Rule for re-running cmake.",
/*depfile=*/"",
/*deptype=*/"",
/*rspfile=*/"",
/*rspcontent*/ "",
/*restat=*/"",
/*generator=*/true);
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cmNinjaDeps implicitDeps;
for (std::vector<cmLocalGenerator*>::const_iterator i =
this->LocalGenerators.begin();
i != this->LocalGenerators.end(); ++i) {
std::vector<std::string> const& lf = (*i)->GetMakefile()->GetListFiles();
for (std::vector<std::string>::const_iterator fi = lf.begin();
fi != lf.end(); ++fi) {
implicitDeps.push_back(this->ConvertToNinjaPath(*fi));
}
}
implicitDeps.push_back(this->CMakeCacheFile);
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std::sort(implicitDeps.begin(), implicitDeps.end());
implicitDeps.erase(std::unique(implicitDeps.begin(), implicitDeps.end()),
implicitDeps.end());
cmNinjaVars variables;
// Use 'console' pool to get non buffered output of the CMake re-run call
// Available since Ninja 1.5
if (SupportsConsolePool()) {
variables["pool"] = "console";
}
std::string const ninjaBuildFile = this->NinjaOutputPath(NINJA_BUILD_FILE);
this->WriteBuild(os, "Re-run CMake if any of its inputs changed.",
"RERUN_CMAKE",
/*outputs=*/cmNinjaDeps(1, ninjaBuildFile),
/*explicitDeps=*/cmNinjaDeps(), implicitDeps,
/*orderOnlyDeps=*/cmNinjaDeps(), variables);
this->WritePhonyBuild(os, "A missing CMake input file is not an error.",
implicitDeps, cmNinjaDeps());
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}
std::string cmGlobalNinjaGenerator::ninjaCmd() const
{
cmLocalGenerator* lgen = this->LocalGenerators[0];
if (lgen) {
return lgen->ConvertToOutputFormat(this->NinjaCommand,
cmOutputConverter::SHELL);
}
return "ninja";
}
bool cmGlobalNinjaGenerator::SupportsConsolePool() const
{
return !cmSystemTools::VersionCompare(
cmSystemTools::OP_LESS, this->NinjaVersion.c_str(),
RequiredNinjaVersionForConsolePool().c_str());
}
void cmGlobalNinjaGenerator::WriteTargetClean(std::ostream& os)
{
WriteRule(*this->RulesFileStream, "CLEAN", ninjaCmd() + " -t clean",
"Cleaning all built files...",
"Rule for cleaning all built files.",
/*depfile=*/"",
/*deptype=*/"",
/*rspfile=*/"",
/*rspcontent*/ "",
/*restat=*/"",
/*generator=*/false);
WriteBuild(os, "Clean all the built files.", "CLEAN",
/*outputs=*/cmNinjaDeps(1, this->NinjaOutputPath("clean")),
/*explicitDeps=*/cmNinjaDeps(),
/*implicitDeps=*/cmNinjaDeps(),
/*orderOnlyDeps=*/cmNinjaDeps(),
/*variables=*/cmNinjaVars());
}
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void cmGlobalNinjaGenerator::WriteTargetHelp(std::ostream& os)
{
WriteRule(*this->RulesFileStream, "HELP", ninjaCmd() + " -t targets",
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"All primary targets available:",
"Rule for printing all primary targets available.",
/*depfile=*/"",
/*deptype=*/"",
/*rspfile=*/"",
/*rspcontent*/ "",
/*restat=*/"",
/*generator=*/false);
WriteBuild(os, "Print all primary targets available.", "HELP",
/*outputs=*/cmNinjaDeps(1, this->NinjaOutputPath("help")),
/*explicitDeps=*/cmNinjaDeps(),
/*implicitDeps=*/cmNinjaDeps(),
/*orderOnlyDeps=*/cmNinjaDeps(),
/*variables=*/cmNinjaVars());
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}
void cmGlobalNinjaGenerator::InitOutputPathPrefix()
{
this->OutputPathPrefix =
this->LocalGenerators[0]->GetMakefile()->GetSafeDefinition(
"CMAKE_NINJA_OUTPUT_PATH_PREFIX");
EnsureTrailingSlash(this->OutputPathPrefix);
}
std::string cmGlobalNinjaGenerator::NinjaOutputPath(std::string const& path)
{
if (!this->HasOutputPathPrefix() || cmSystemTools::FileIsFullPath(path)) {
return path;
}
return this->OutputPathPrefix + path;
}
void cmGlobalNinjaGenerator::StripNinjaOutputPathPrefixAsSuffix(
std::string& path)
{
if (path.empty()) {
return;
}
EnsureTrailingSlash(path);
cmStripSuffixIfExists(path, this->OutputPathPrefix);
}