Fix left-over occurrences of else-after-return

Fix issues diagnosed by clang-tidy [readability-else-after-return]

These were mostly only showing up on OSX.

Signed-off-by: Matthias Maennich <matthias@maennich.net>

Source/CPack/cmCPackDragNDropGenerator.cxx

@@ -226,14 +226,14 @@ bool cmCPackDragNDropGenerator::CreateEmptyFile(std::ostringstream& target,
   cmsys::ofstream fout(target.str().c_str(), std::ios::out | std::ios::binary);
   if (!fout) {
     return false;
-  } else {
-    // Seek to desired size - 1 byte
-    fout.seekp(size - 1, std::ios::beg);
-    char byte = 0;
-    // Write one byte to ensure file grows
-    fout.write(&byte, 1);
   }
 
+  // Seek to desired size - 1 byte
+  fout.seekp(size - 1, std::ios::beg);
+  char byte = 0;
+  // Write one byte to ensure file grows
+  fout.write(&byte, 1);
+
   return true;
 }
 

Source/CPack/cmCPackPKGGenerator.cxx

@@ -42,9 +42,9 @@ std::string cmCPackPKGGenerator::GetPackageName(
     out << cmSystemTools::GetFilenameWithoutLastExtension(packagesDir) << "-"
         << component.Name << ".pkg";
     return out.str();
-  } else {
-    return component.ArchiveFile + ".pkg";
   }
+
+  return component.ArchiveFile + ".pkg";
 }
 
 void cmCPackPKGGenerator::WriteDistributionFile(const char* metapackageFile)

Source/cmFileCommand.cxx

@@ -2294,10 +2294,9 @@ bool cmFileCommand::HandleReadElfCommand(std::vector<std::string> const& args)
   if (errorArg.GetString().empty()) {
     this->SetError(error);
     return false;
-  } else {
-    this->Makefile->AddDefinition(errorArg.GetString(), error.c_str());
-    return true;
   }
+  this->Makefile->AddDefinition(errorArg.GetString(), error.c_str());
+  return true;
 #endif
 }
 

Source/cmFileTimeComparison.cxx

@@ -116,18 +116,22 @@ int cmFileTimeComparisonInternal::Compare(cmFileTimeComparison_Type* s1,
   // Compare using nanosecond resolution.
   if (s1->st_mtimespec.tv_sec < s2->st_mtimespec.tv_sec) {
     return -1;
-  } else if (s1->st_mtimespec.tv_sec > s2->st_mtimespec.tv_sec) {
+  }
+  if (s1->st_mtimespec.tv_sec > s2->st_mtimespec.tv_sec) {
     return 1;
-  } else if (s1->st_mtimespec.tv_nsec < s2->st_mtimespec.tv_nsec) {
+  }
+  if (s1->st_mtimespec.tv_nsec < s2->st_mtimespec.tv_nsec) {
     return -1;
-  } else if (s1->st_mtimespec.tv_nsec > s2->st_mtimespec.tv_nsec) {
+  }
+  if (s1->st_mtimespec.tv_nsec > s2->st_mtimespec.tv_nsec) {
     return 1;
   }
 #else
   // Compare using 1 second resolution.
   if (s1->st_mtime < s2->st_mtime) {
     return -1;
-  } else if (s1->st_mtime > s2->st_mtime) {
+  }
+  if (s1->st_mtime > s2->st_mtime) {
     return 1;
   }
 #endif
@@ -162,20 +166,20 @@ bool cmFileTimeComparisonInternal::TimesDiffer(cmFileTimeComparison_Type* s1,
   long long t2 = s2->st_mtimespec.tv_sec * bil + s2->st_mtimespec.tv_nsec;
   if (t1 < t2) {
     return (t2 - t1) >= bil;
-  } else if (t2 < t1) {
-    return (t1 - t2) >= bil;
-  } else {
-    return false;
   }
+  if (t2 < t1) {
+    return (t1 - t2) >= bil;
+  }
+  return false;
 #else
   // Times are integers in units of 1s.
   if (s1->st_mtime < s2->st_mtime) {
     return (s2->st_mtime - s1->st_mtime) >= 1;
-  } else if (s1->st_mtime > s2->st_mtime) {
-    return (s1->st_mtime - s2->st_mtime) >= 1;
-  } else {
-    return false;
   }
+  if (s1->st_mtime > s2->st_mtime) {
+    return (s1->st_mtime - s2->st_mtime) >= 1;
+  }
+  return false;
 #endif
 #else
   // Times are integers in units of 100ns.

Source/cmGlobalXCodeGenerator.cxx

@@ -111,9 +111,8 @@ public:
   {
     if (this->Group) {
       return this->Group;
-    } else {
-      return this->Generator->CreateString(this->String);
     }
+    return this->Generator->CreateString(this->String);
   }
 };
 
@@ -240,10 +239,9 @@ std::string cmGlobalXCodeGenerator::FindXcodeBuildCommand()
       makeProgram = "xcodebuild";
     }
     return makeProgram;
-  } else {
-    // Use cmakexbuild wrapper to suppress environment dump from output.
-    return cmSystemTools::GetCMakeCommand() + "xbuild";
   }
+  // Use cmakexbuild wrapper to suppress environment dump from output.
+  return cmSystemTools::GetCMakeCommand() + "xbuild";
 }
 
 bool cmGlobalXCodeGenerator::SetGeneratorToolset(std::string const& ts,
@@ -2355,9 +2353,8 @@ const char* cmGlobalXCodeGenerator::GetTargetLinkFlagsVar(
       (target->GetType() == cmStateEnums::STATIC_LIBRARY ||
        target->GetType() == cmStateEnums::OBJECT_LIBRARY)) {
     return "OTHER_LIBTOOLFLAGS";
-  } else {
-    return "OTHER_LDFLAGS";
   }
+  return "OTHER_LDFLAGS";
 }
 
 const char* cmGlobalXCodeGenerator::GetTargetFileType(
@@ -2376,10 +2373,9 @@ const char* cmGlobalXCodeGenerator::GetTargetFileType(
     case cmStateEnums::MODULE_LIBRARY:
       if (target->IsXCTestOnApple())
         return "wrapper.cfbundle";
-      else if (target->IsCFBundleOnApple())
+      if (target->IsCFBundleOnApple())
         return "wrapper.plug-in";
-      else
+      return "compiled.mach-o.executable";
-        return "compiled.mach-o.executable";
     case cmStateEnums::SHARED_LIBRARY:
       return (target->GetPropertyAsBool("FRAMEWORK")
                 ? "wrapper.framework"