| /*============================================================================ |
| CMake - Cross Platform Makefile Generator |
| Copyright 2000-2009 Kitware, Inc., Insight Software Consortium |
| |
| 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 "cmCMakePolicyCommand.h" |
| |
| #include "cmVersion.h" |
| |
| // cmCMakePolicyCommand |
| bool cmCMakePolicyCommand |
| ::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &) |
| { |
| if(args.size() < 1) |
| { |
| this->SetError("requires at least one argument."); |
| return false; |
| } |
| |
| if(args[0] == "SET") |
| { |
| return this->HandleSetMode(args); |
| } |
| else if(args[0] == "GET") |
| { |
| return this->HandleGetMode(args); |
| } |
| else if(args[0] == "PUSH") |
| { |
| if(args.size() > 1) |
| { |
| this->SetError("PUSH may not be given additional arguments."); |
| return false; |
| } |
| this->Makefile->PushPolicy(); |
| return true; |
| } |
| else if(args[0] == "POP") |
| { |
| if(args.size() > 1) |
| { |
| this->SetError("POP may not be given additional arguments."); |
| return false; |
| } |
| this->Makefile->PopPolicy(); |
| return true; |
| } |
| else if(args[0] == "VERSION") |
| { |
| return this->HandleVersionMode(args); |
| } |
| |
| cmOStringStream e; |
| e << "given unknown first argument \"" << args[0] << "\""; |
| this->SetError(e.str().c_str()); |
| return false; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmCMakePolicyCommand::HandleSetMode(std::vector<std::string> const& args) |
| { |
| if(args.size() != 3) |
| { |
| this->SetError("SET must be given exactly 2 additional arguments."); |
| return false; |
| } |
| |
| cmPolicies::PolicyStatus status; |
| if(args[2] == "OLD") |
| { |
| status = cmPolicies::OLD; |
| } |
| else if(args[2] == "NEW") |
| { |
| status = cmPolicies::NEW; |
| } |
| else |
| { |
| cmOStringStream e; |
| e << "SET given unrecognized policy status \"" << args[2] << "\""; |
| this->SetError(e.str().c_str()); |
| return false; |
| } |
| |
| if(!this->Makefile->SetPolicy(args[1].c_str(), status)) |
| { |
| this->SetError("SET failed to set policy."); |
| return false; |
| } |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args) |
| { |
| if(args.size() != 3) |
| { |
| this->SetError("GET must be given exactly 2 additional arguments."); |
| return false; |
| } |
| |
| // Get arguments. |
| std::string const& id = args[1]; |
| std::string const& var = args[2]; |
| |
| // Lookup the policy number. |
| cmPolicies::PolicyID pid; |
| if(!this->Makefile->GetPolicies()->GetPolicyID(id.c_str(), pid)) |
| { |
| cmOStringStream e; |
| e << "GET given policy \"" << id << "\" which is not known to this " |
| << "version of CMake."; |
| this->SetError(e.str().c_str()); |
| return false; |
| } |
| |
| // Lookup the policy setting. |
| cmPolicies::PolicyStatus status = this->Makefile->GetPolicyStatus(pid); |
| switch (status) |
| { |
| case cmPolicies::OLD: |
| // Report that the policy is set to OLD. |
| this->Makefile->AddDefinition(var.c_str(), "OLD"); |
| break; |
| case cmPolicies::WARN: |
| // Report that the policy is not set. |
| this->Makefile->AddDefinition(var.c_str(), ""); |
| break; |
| case cmPolicies::NEW: |
| // Report that the policy is set to NEW. |
| this->Makefile->AddDefinition(var.c_str(), "NEW"); |
| break; |
| case cmPolicies::REQUIRED_IF_USED: |
| case cmPolicies::REQUIRED_ALWAYS: |
| // The policy is required to be set before anything needs it. |
| { |
| cmOStringStream e; |
| e << this->Makefile->GetPolicies()->GetRequiredPolicyError(pid) |
| << "\n" |
| << "The call to cmake_policy(GET " << id << " ...) at which this " |
| << "error appears requests the policy, and this version of CMake " |
| << "requires that the policy be set to NEW before it is checked."; |
| this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str()); |
| } |
| } |
| |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool |
| cmCMakePolicyCommand::HandleVersionMode(std::vector<std::string> const& args) |
| { |
| if(args.size() <= 1) |
| { |
| this->SetError("VERSION not given an argument"); |
| return false; |
| } |
| else if(args.size() >= 3) |
| { |
| this->SetError("VERSION given too many arguments"); |
| return false; |
| } |
| this->Makefile->SetPolicyVersion(args[1].c_str()); |
| return true; |
| } |