[llvm-branch-commits] [clang-tools-extra] [clang-doc] Add HTMLMustacheGenerator methods (PR #138061)

[Petr Hosek via llvm-branch-commits]

================
@@ -57,18 +57,118 @@ class MustacheTemplateFile : public Template {
   MustacheTemplateFile(StringRef TemplateStr) : Template(TemplateStr) {}
 };
 
+static std::unique_ptr<MustacheTemplateFile> NamespaceTemplate = nullptr;
+
+static std::unique_ptr<MustacheTemplateFile> RecordTemplate = nullptr;
+
+static Error setupTemplateFiles(const clang::doc::ClangDocContext &CDCtx) {
+  return Error::success();
+}
+
 Error MustacheHTMLGenerator::generateDocs(
     StringRef RootDir, StringMap<std::unique_ptr<doc::Info>> Infos,
     const clang::doc::ClangDocContext &CDCtx) {
+  if (auto Err = setupTemplateFiles(CDCtx))
+    return Err;
+  // Track which directories we already tried to create.
+  StringSet<> CreatedDirs;
+  // Collect all output by file name and create the necessary directories.
+  StringMap<std::vector<doc::Info *>> FileToInfos;
+  for (const auto &Group : Infos) {
+    doc::Info *Info = Group.getValue().get();
+
+    SmallString<128> Path;
+    sys::path::native(RootDir, Path);
+    sys::path::append(Path, Info->getRelativeFilePath(""));
+    if (!CreatedDirs.contains(Path)) {
+      if (std::error_code Err = sys::fs::create_directories(Path);
+          Err != std::error_code())
+        return createStringError(Err, "Failed to create directory '%s'.",
----------------
petrhosek wrote:

We don't seem to be using full sentences elsewhere.
```suggestion
        return createStringError(Err, "failed to create directory '%s'",
```

https://github.com/llvm/llvm-project/pull/138061