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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmIncludeCommand.h"
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#include <sstream>
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#include "cmGlobalGenerator.h"
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#include "cmMakefile.h"
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#include "cmPolicies.h"
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#include "cmSystemTools.h"
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#include "cmake.h"
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class cmExecutionStatus;
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// cmIncludeCommand
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bool cmIncludeCommand::InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus&)
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{
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if (args.empty() || args.size() > 4) {
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this->SetError("called with wrong number of arguments. "
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"include() only takes one file.");
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return false;
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}
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bool optional = false;
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bool noPolicyScope = false;
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std::string fname = args[0];
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std::string resultVarName;
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for (unsigned int i = 1; i < args.size(); i++) {
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if (args[i] == "OPTIONAL") {
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if (optional) {
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this->SetError("called with invalid arguments: OPTIONAL used twice");
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return false;
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}
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optional = true;
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} else if (args[i] == "RESULT_VARIABLE") {
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if (!resultVarName.empty()) {
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this->SetError("called with invalid arguments: "
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"only one result variable allowed");
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return false;
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}
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if (++i < args.size()) {
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resultVarName = args[i];
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} else {
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this->SetError("called with no value for RESULT_VARIABLE.");
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return false;
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}
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} else if (args[i] == "NO_POLICY_SCOPE") {
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noPolicyScope = true;
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} else if (i > 1) // compat.: in previous cmake versions the second
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// parameter was ignored if it wasn't "OPTIONAL"
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{
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std::string errorText = "called with invalid argument: ";
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errorText += args[i];
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this->SetError(errorText);
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return false;
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}
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}
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if (fname.empty()) {
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this->Makefile->IssueMessage(cmake::AUTHOR_WARNING,
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"include() given empty file name (ignored).");
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return true;
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}
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if (!cmSystemTools::FileIsFullPath(fname)) {
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// Not a path. Maybe module.
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std::string module = fname;
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module += ".cmake";
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std::string mfile = this->Makefile->GetModulesFile(module.c_str());
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if (!mfile.empty()) {
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fname = mfile;
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}
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}
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std::string fname_abs = cmSystemTools::CollapseFullPath(
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fname, this->Makefile->GetCurrentSourceDirectory());
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cmGlobalGenerator* gg = this->Makefile->GetGlobalGenerator();
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if (gg->IsExportedTargetsFile(fname_abs)) {
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const char* modal = nullptr;
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std::ostringstream e;
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cmake::MessageType messageType = cmake::AUTHOR_WARNING;
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switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0024)) {
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case cmPolicies::WARN:
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e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0024) << "\n";
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modal = "should";
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case cmPolicies::OLD:
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break;
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case cmPolicies::REQUIRED_IF_USED:
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case cmPolicies::REQUIRED_ALWAYS:
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case cmPolicies::NEW:
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modal = "may";
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messageType = cmake::FATAL_ERROR;
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}
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if (modal) {
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e << "The file\n " << fname_abs << "\nwas generated by the export() "
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"command. It "
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<< modal
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<< " not be used as the argument to the "
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"include() command. Use ALIAS targets instead to refer to targets "
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"by alternative names.\n";
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this->Makefile->IssueMessage(messageType, e.str());
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if (messageType == cmake::FATAL_ERROR) {
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return false;
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}
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}
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gg->CreateGenerationObjects();
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gg->GenerateImportFile(fname_abs);
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}
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std::string listFile = cmSystemTools::CollapseFullPath(
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fname, this->Makefile->GetCurrentSourceDirectory());
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if (optional && !cmSystemTools::FileExists(listFile)) {
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if (!resultVarName.empty()) {
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this->Makefile->AddDefinition(resultVarName, "NOTFOUND");
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}
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return true;
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}
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bool readit =
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this->Makefile->ReadDependentFile(listFile.c_str(), noPolicyScope);
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// add the location of the included file if a result variable was given
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if (!resultVarName.empty()) {
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this->Makefile->AddDefinition(resultVarName,
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readit ? fname_abs.c_str() : "NOTFOUND");
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}
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if (!optional && !readit && !cmSystemTools::GetFatalErrorOccured()) {
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std::string m = "could not find load file:\n"
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" ";
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m += fname;
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this->SetError(m);
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return false;
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}
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return true;
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}
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