Running generators as separate premake project step (#1441)

* Put the running of generators into a separate project, to try and sure the generated products are available for other dependencies when compiling with multiple threads on linux.

* Made paths Strings in slang-generate. Made paths use / for path separators (rather than \ on windows which causes some problems with #line).

* Make the run-generators proj a utility step.

* Made run-generators a StaticLib.

* Fix problem with generating when not necessary.

* Trying to get abspath to work on linux.

* Add run-generator-main.cpp dummy file.

* Add comment about the issues around linux and correct build triggering.

* Add updated projects.

* Remove the run-generators-main.cpp as no longer needed for 'run-generators' tool.
Removed the adding of files by default from baseSlangProject
Made the run generators project use slang-string.cpp as the file it builds from core.

* Add the run-generators VS project.

1 files changed, 11 insertions, 8 deletions

diff --git a/tools/slang-generate/main.cpp b/tools/slang-generate/main.cpp
index 979127f8d..5fca7c21a 100644
--- a/tools/slang-generate/main.cpp
+++ b/tools/slang-generate/main.cpp
@@ -8,6 +8,7 @@
 #include "../../source/core/slang-list.h"
 #include "../../source/core/slang-string.h"
 #include "../../source/core/slang-string-util.h"
+#include "../../source/core/slang-io.h"
 
 using namespace Slang;
 
@@ -38,7 +39,7 @@ struct Node
 // Information about a source file
 struct SourceFile
 {
-    char const* inputPath;
+    String inputPath;
     StringSpan  text;
     Node*       node;
 };
@@ -761,7 +762,7 @@ Node* parseSourceFile(SourceFile* file)
 
     for (auto hh : kHandlers)
     {
-        if (UnownedTerminatedStringSlice(path).endsWith(hh.extension))
+        if (path.endsWith(hh.extension))
         {
             return hh.handler(text);
         }
@@ -772,10 +773,10 @@ Node* parseSourceFile(SourceFile* file)
 
 
 
-SourceFile* parseSourceFile(char const* path)
+SourceFile* parseSourceFile(const String& path)
 {
     FILE* inputStream;
-    fopen_s(&inputStream, path, "rb");
+    fopen_s(&inputStream, path.getBuffer(), "rb");
     fseek(inputStream, 0, SEEK_END);
     size_t inputSize = ftell(inputStream);
     fseek(inputStream, 0, SEEK_SET);
@@ -804,7 +805,7 @@ int main(
     const char*const*  argv)
 {
     // Parse command-line arguments.
-    List<const char*> inputPaths;
+    List<String> inputPaths;
     char const* appName = "slang-generate";
 
     {
@@ -818,7 +819,9 @@ int main(
         // Copy the input paths
         for (; argCursor != argEnd; ++argCursor)
         {
-            inputPaths.add(*argCursor);
+            // We simplify here because doing so also means paths separators are set to /
+            // and that makes path emitting work correctly
+            inputPaths.add(Path::simplify(UnownedStringSlice(*argCursor)));
         }
     }
 
@@ -830,7 +833,7 @@ int main(
 
     // Read each input file and process it according
     // to the type of treatment it requires.
-    for (const char* inputPath: inputPaths)
+    for (auto& inputPath: inputPaths)
     {
         SourceFile* sourceFile = parseSourceFile(inputPath);
         if (sourceFile)
@@ -866,7 +869,7 @@ int main(
         readAllText(outputPath.getBuffer(), allTextNew);
         if (allTextOld != allTextNew)
         {
-            writeAllText(inputPath, outputPathFinal.getBuffer(), allTextNew.getBuffer());
+            writeAllText(inputPath.getBuffer(), outputPathFinal.getBuffer(), allTextNew.getBuffer());
         }
         remove(outputPath.getBuffer());
     }