fix: fix lang from path logic: don't crash for non-. paths; workarounds for D

Author: alehander92

src/ct/utilities/language_detection.nim

@@ -31,6 +31,7 @@ const LANGS = {
   "py": LangPythonDb,
   "rb": LangRubyDb, # default for ruby for now
   "nr": LangNoir,
+  "d": LangC, # TODO
   "small": LangSmall,
   "wasm": LangRustWasm, # TODO: can be Cpp or other as well, maybe pass
     # explicitly or check trace/other debug info?
@@ -44,15 +45,21 @@ const WASM_LANGS = {
 
 proc detectLangFromPath*(path: string, isWasm: bool): Lang =
   let filename = path.extractFilename
-  let extension = rsplit(filename[1..^1], ".", 1)[1].toLowerAscii()
+  echo filename
+  let tokens = rsplit(filename[1..^1], ".", 1)
+  if tokens.len > 1:
+    let extension = tokens[1].toLowerAscii()
 
-  if isWasm and WASM_LANGS.hasKey(extension):
-    return WASM_LANGS[extension]
+    if isWasm and WASM_LANGS.hasKey(extension):
+      return WASM_LANGS[extension]
+
+    if LANGS.hasKey(extension):
+      result = LANGS[extension] # TODO detectLangFromTrace(traceId) ?
+      if result != LangUnknown:
+        return result
+  else:
+    return LangUnknown
 
-  if LANGS.hasKey(extension):
-    result = LANGS[extension] # TODO detectLangFromTrace(traceId) ?
-    if result != LangUnknown:
-      return result
 
 proc detectLang*(program: string, lang: Lang, isWasm: bool = false): Lang =
   # TODO: under a debug print flag?

src/db-backend/src/lang.rs

@@ -56,6 +56,10 @@ pub fn lang_from_context(path: &Path, trace_kind: TraceKind) -> Lang {
         }
         "c" => Lang::C,
         "cpp" => Lang::Cpp,
+        "pas" => Lang::Pascal,
+        "nim" => Lang::Nim,
+        "d" => Lang::C, // TODO
+        "go" => Lang::Go,
         _ => Lang::Unknown,
     }
 }

src/frontend/index/server_config.nim

@@ -102,5 +102,6 @@ when defined(server):
         debugPrint "call ready"
         discard jsAsFunction[proc: Future[void]](readyVar)()
         readyVar = undefined
+
     infoPrint fmt"socket.io listening on localhost:{backendSocketPort}"
     httpServer.listen(backendSocketPort)

src/frontend/lang.nim

@@ -23,7 +23,8 @@ proc toLang*(lang: cstring): Lang =
     lua: LangLua,
     nr: LangNoir,
     small: LangSmall,
-    noir: LangNoir
+    noir: LangNoir,
+    d: LangC, # TODO
   }
   if langs.hasKey(lang):
     result = langs[lang]