set_property: Allow both DIRECTORY and TARGET_DIRECTORY together

Allow to specify both DIRECTORY and TARGET_DIRECTORY at the same time in
`set_source_files_properties()` and `set_property(SOURCE)` commands.

Add test cases and update the documentation.

Fixes: #20932

2 files changed, 36 insertions, 20 deletions

diff --git a/Source/cmSetPropertyCommand.cxx b/Source/cmSetPropertyCommand.cxx
index 11afc14..51509fd 100644
--- a/Source/cmSetPropertyCommand.cxx
+++ b/Source/cmSetPropertyCommand.cxx
@@ -96,7 +96,9 @@ bool HandleSourceFileDirectoryScopes(
       }
       directory_makefiles.push_back(dir_mf);
     }
-  } else if (!source_file_target_directories.empty()) {
+  }
+
+  if (!source_file_target_directories.empty()) {
     for (const std::string& target_name : source_file_target_directories) {
       cmTarget* target = current_dir_mf->FindTargetToUse(target_name);
       if (!target) {
@@ -110,7 +112,10 @@ bool HandleSourceFileDirectoryScopes(
           *target_source_dir);
       directory_makefiles.push_back(target_dir_mf);
     }
-  } else {
+  }
+
+  if (source_file_directories.empty() &&
+      source_file_target_directories.empty()) {
     directory_makefiles.push_back(current_dir_mf);
   }
   return true;
@@ -271,12 +276,12 @@ bool cmSetPropertyCommand(std::vector<std::string> const& args,
       appendMode = true;
       remove = false;
       appendAsString = true;
-    } else if (doing == DoingNames && scope == cmProperty::SOURCE_FILE &&
-               arg == "DIRECTORY") {
+    } else if (doing != DoingProperty && doing != DoingValues &&
+               scope == cmProperty::SOURCE_FILE && arg == "DIRECTORY") {
       doing = DoingSourceDirectory;
       source_file_directory_option_enabled = true;
-    } else if (doing == DoingNames && scope == cmProperty::SOURCE_FILE &&
-               arg == "TARGET_DIRECTORY") {
+    } else if (doing != DoingProperty && doing != DoingValues &&
+               scope == cmProperty::SOURCE_FILE && arg == "TARGET_DIRECTORY") {
       doing = DoingSourceTargetDirectory;
       source_file_target_option_enabled = true;
     } else if (doing == DoingNames) {
diff --git a/Source/cmSetSourceFilesPropertiesCommand.cxx b/Source/cmSetSourceFilesPropertiesCommand.cxx
index 3135a06..c1b0c28 100644
--- a/Source/cmSetSourceFilesPropertiesCommand.cxx
+++ b/Source/cmSetSourceFilesPropertiesCommand.cxx
@@ -35,11 +35,11 @@ bool cmSetSourceFilesPropertiesCommand(std::vector<std::string> const& args,
     "OBJECT_DEPENDS", "PROPERTIES", "DIRECTORY",    "TARGET_DIRECTORY"
   };
 
-  auto isNotAPropertyKeyword =
+  auto isAPropertyKeyword =
     [](const std::vector<std::string>::const_iterator& arg_it) {
-      return std::all_of(
+      return std::any_of(
         std::begin(prop_names), std::end(prop_names),
-        [&arg_it](cm::string_view prop_name) { return *arg_it != prop_name; });
+        [&arg_it](cm::string_view prop_name) { return *arg_it == prop_name; });
     };
 
   auto options_begin = std::find_first_of(
@@ -53,21 +53,32 @@ bool cmSetSourceFilesPropertiesCommand(std::vector<std::string> const& args,
   bool source_file_target_option_enabled = false;
   std::vector<cmMakefile*> source_file_directory_makefiles;
 
-  if (options_it != args.end() && *options_it == "DIRECTORY") {
-    source_file_directory_option_enabled = true;
-    ++options_it;
-    while (options_it != args.end() && isNotAPropertyKeyword(options_it)) {
+  enum Doing
+  {
+    DoingNone,
+    DoingSourceDirectory,
+    DoingSourceTargetDirectory
+  };
+  Doing doing = DoingNone;
+  for (; options_it != args.end(); ++options_it) {
+    if (*options_it == "DIRECTORY") {
+      doing = DoingSourceDirectory;
+      source_file_directory_option_enabled = true;
+    } else if (*options_it == "TARGET_DIRECTORY") {
+      doing = DoingSourceTargetDirectory;
+      source_file_target_option_enabled = true;
+    } else if (isAPropertyKeyword(options_it)) {
+      break;
+    } else if (doing == DoingSourceDirectory) {
       source_file_directories.push_back(*options_it);
-      ++options_it;
-    }
-  } else if (options_it != args.end() && *options_it == "TARGET_DIRECTORY") {
-    source_file_target_option_enabled = true;
-    ++options_it;
-    while (options_it != args.end() && isNotAPropertyKeyword(options_it)) {
+    } else if (doing == DoingSourceTargetDirectory) {
       source_file_target_directories.push_back(*options_it);
-      ++options_it;
+    } else {
+      status.SetError(
+        cmStrCat("given invalid argument \"", *options_it, "\"."));
     }
   }
+
   const auto props_begin = options_it;
 
   bool file_scopes_handled =