1 files changed, 87 insertions, 0 deletions
diff --git a/Source/cmInstallScriptGenerator.cxx b/Source/cmInstallScriptGenerator.cxx
new file mode 100644
index 0000000..a513958
--- /dev/null
+++ b/Source/cmInstallScriptGenerator.cxx
@@ -0,0 +1,87 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmInstallScriptGenerator.h"
+
+#include <ostream>
+#include <vector>
+
+#include "cmGeneratorExpression.h"
+#include "cmLocalGenerator.h"
+#include "cmMessageType.h"
+#include "cmPolicies.h"
+#include "cmScriptGenerator.h"
+
+cmInstallScriptGenerator::cmInstallScriptGenerator(const char* script,
+                                                   bool code,
+                                                   const char* component,
+                                                   bool exclude_from_all)
+  : cmInstallGenerator(nullptr, std::vector<std::string>(), component,
+                       MessageDefault, exclude_from_all)
+  , Script(script)
+  , Code(code)
+  , AllowGenex(false)
+{
+  // We need per-config actions if the script has generator expressions.
+  if (cmGeneratorExpression::Find(Script) != std::string::npos) {
+    this->ActionsPerConfig = true;
+  }
+}
+
+cmInstallScriptGenerator::~cmInstallScriptGenerator() = default;
+
+void cmInstallScriptGenerator::Compute(cmLocalGenerator* lg)
+{
+  this->LocalGenerator = lg;
+
+  if (this->ActionsPerConfig) {
+    switch (this->LocalGenerator->GetPolicyStatus(cmPolicies::CMP0087)) {
+      case cmPolicies::WARN:
+        this->LocalGenerator->IssueMessage(
+          MessageType::AUTHOR_WARNING,
+          cmPolicies::GetPolicyWarning(cmPolicies::CMP0087));
+        CM_FALLTHROUGH;
+      case cmPolicies::OLD:
+        break;
+      case cmPolicies::NEW:
+      case cmPolicies::REQUIRED_ALWAYS:
+      case cmPolicies::REQUIRED_IF_USED:
+        this->AllowGenex = true;
+        break;
+    }
+  }
+}
+
+void cmInstallScriptGenerator::AddScriptInstallRule(std::ostream& os,
+                                                    Indent indent,
+                                                    std::string const& script)
+{
+  if (this->Code) {
+    os << indent << script << "\n";
+  } else {
+    os << indent << "include(\"" << script << "\")\n";
+  }
+}
+
+void cmInstallScriptGenerator::GenerateScriptActions(std::ostream& os,
+                                                     Indent indent)
+{
+  if (this->AllowGenex && this->ActionsPerConfig) {
+    this->cmInstallGenerator::GenerateScriptActions(os, indent);
+  } else {
+    this->AddScriptInstallRule(os, indent, this->Script);
+  }
+}
+
+void cmInstallScriptGenerator::GenerateScriptForConfig(
+  std::ostream& os, const std::string& config, Indent indent)
+{
+  if (this->AllowGenex) {
+    cmGeneratorExpression ge;
+    std::unique_ptr<cmCompiledGeneratorExpression> cge =
+      ge.Parse(this->Script);
+    this->AddScriptInstallRule(os, indent,
+                               cge->Evaluate(this->LocalGenerator, config));
+  } else {
+    this->AddScriptInstallRule(os, indent, this->Script);
+  }
+}