better log messages

PyTeX/build/build/builder.py

@@ -340,7 +340,9 @@ class PyTeXBuilder:
 
     def _build(self) -> bool:
         self._update_config_in_input_folder()
-        logger.info("Starting build")
+        logger.info("Starting build of {}".format(
+            self._build_target_type.value
+        ))
         self._load_pytex_files()  # 8ms
         logger.verbose(f"Found {len(self._pytex_files)} source files")
         self._init_output_files()  # 1ms

PyTeX/build/build/enums.py

@@ -4,10 +4,10 @@ from PyTeX.format.enums import Target
 
 
 class PyTeXRootDirType(Enum):
-    BUILD = 1
-    PYTEX_SOURCE = 2
-    DOC = 3
-    TEX_SOURCE = 4
+    BUILD = 'tex distribution'
+    PYTEX_SOURCE = 'pytex sources'
+    DOC = 'documentation'
+    TEX_SOURCE = 'tex sources'
 
     def to_target(self) -> Target:
         return {