Tweaked trigger to suggest using a config file (fixes #77)

hdl_checker/base_server.py

@@ -55,6 +55,7 @@
 from hdl_checker.static_check import getStaticMessages
 from hdl_checker.types import (
     BuildFlagScope,
+    ConfigFileOrigin,
     RebuildInfo,
     RebuildLibraryUnit,
     RebuildPath,
@@ -91,7 +92,9 @@
 else:
     JSONDecodeError = json.decoder.JSONDecodeError
 
-WatchedFile = NamedTuple("WatchedFile", (("path", Path), ("last_read", float)))
+WatchedFile = NamedTuple(
+    "WatchedFile", (("path", Path), ("last_read", float), ("origin", ConfigFileOrigin))
+)
 
 
 class BaseServer(object):  # pylint: disable=useless-object-inheritance
@@ -159,8 +162,8 @@ def _clearLruCaches(self):
             for meth in self._cached_methods:
                 meth.cache_clear()
 
-    def setConfig(self, filename):
-        # type: (Union[Path, str]) -> None
+    def setConfig(self, filename, origin):
+        # type: (Union[Path, str], ConfigFileOrigin) -> None
         """
         Sets the configuration file. Calling this method will only trigger a
         configuration update if the given file name is different what was
@@ -177,7 +180,7 @@ def setConfig(self, filename):
         else:
             return
 
-        self.config_file = WatchedFile(path, mtime)
+        self.config_file = WatchedFile(path, mtime, origin)
         _logger.debug("Set config to %s", self.config_file)
 
     def _updateConfigIfNeeded(self):
@@ -199,14 +202,17 @@ def _updateConfigIfNeeded(self):
             if self.config_file.last_read >= file_mtime:
                 return
 
-            # Don't let the user hanging if adding sources is taking too long. Also
-            # need to notify when adding is done.
+            # Don't let the user hanging if adding sources is taking too long
+            # when there's no config file. Also need to notify when adding is
+            # done.
             timer = Timer(
                 _HOW_LONG_IS_TOO_LONG,
                 self._handleUiInfo,
                 args=(_HOW_LONG_IS_TOO_LONG_MSG,),
             )
-            timer.start()
+
+            if self.config_file.origin is ConfigFileOrigin.generated:
+                timer.start()
 
             try:
                 config = json.load(open(str(self.config_file.path)))
@@ -215,7 +221,9 @@ def _updateConfigIfNeeded(self):
 
             self.configure(config)
 
-            self.config_file = WatchedFile(self.config_file.path, file_mtime)
+            self.config_file = WatchedFile(
+                self.config_file.path, file_mtime, self.config_file.origin
+            )
             _logger.debug("Updated config file to %s", self.config_file)
             timer.cancel()
 
@@ -362,7 +370,9 @@ def _setupIfNeeded(self):
             return
 
         # Force config file out of to date to trigger reparsing
-        self.config_file = WatchedFile(self.config_file.path, 0)
+        self.config_file = WatchedFile(
+            self.config_file.path, 0, self.config_file.origin
+        )
 
     def clean(self):
         # type: (...) -> Any

hdl_checker/handlers.py

@@ -27,10 +27,10 @@
 import bottle  # type: ignore
 
 from hdl_checker import __version__ as version
-from hdl_checker import types as t  # pylint: disable=unused-import
 from hdl_checker.base_server import BaseServer
 from hdl_checker.builders.fallback import Fallback
 from hdl_checker.path import Path
+from hdl_checker.types import ConfigFileOrigin
 from hdl_checker.utils import terminateProcess
 
 _logger = logging.getLogger(__name__)
@@ -88,7 +88,7 @@ def _getServerByProjectFile(project_file):
         try:
             project = Server(root_dir=root_dir)
             if project_file is not None:
-                project.setConfig(project_file)
+                project.setConfig(project_file, origin=ConfigFileOrigin.user)
             _logger.debug("Created new project server for '%s'", project_file)
         except (IOError, OSError):
             _logger.info("Failed to create checker, reverting to fallback")

hdl_checker/lsp.py

@@ -24,7 +24,6 @@
 from typing import Any, Callable, Dict, Iterable, List, Optional, Set, Tuple, Union
 
 import six
-
 from pyls import lsp as defines  # type: ignore
 from pyls._utils import debounce  # type: ignore
 from pyls.python_ls import PythonLanguageServer  # type: ignore
@@ -44,7 +43,7 @@
     tAnyDesignUnit,
 )
 from hdl_checker.path import Path, TemporaryPath
-from hdl_checker.types import Location, MarkupKind
+from hdl_checker.types import ConfigFileOrigin, Location, MarkupKind
 from hdl_checker.utils import getTemporaryFilename, logCalls, onNewReleaseFound
 
 _logger = logging.getLogger(__name__)
@@ -251,7 +250,7 @@ def _onConfigUpdate(self, options):
         path = self._getProjectFilePath(options)
 
         try:
-            self.checker.setConfig(path)
+            self.checker.setConfig(path, origin=ConfigFileOrigin.user)
             return
         except UnknownParameterError as exc:
             _logger.info("Failed to read config from %s: %s", path, exc)
@@ -274,7 +273,7 @@ def _onConfigUpdate(self, options):
         # Write this to a file and tell the server to use it
         auto_project_file = getTemporaryFilename(AUTO_PROJECT_FILE_NAME)
         json.dump(config, open(auto_project_file, "w"))
-        self.checker.setConfig(auto_project_file)
+        self.checker.setConfig(auto_project_file, origin=ConfigFileOrigin.generated)
 
     def _getProjectFilePath(self, options=None):
         # type: (...) -> str

hdl_checker/tests/test_base_server.py

@@ -65,6 +65,7 @@
 from hdl_checker.path import Path
 from hdl_checker.types import (
     BuildFlagScope,
+    ConfigFileOrigin,
     FileType,
     Location,
     RebuildLibraryUnit,
@@ -141,7 +142,7 @@ def test(handle_ui_info):
         open(source, "w").write("")
 
         project = DummyServer(_Path(path))
-        project.setConfig(Path(config))
+        project.setConfig(_Path(config), origin=ConfigFileOrigin.generated)
         # Get messages of anything to trigger reading the config
         project.getMessagesByPath(Path(source))
 
@@ -151,6 +152,34 @@ def test(handle_ui_info):
 
         removeIfExists(path)
 
+    @it.should(  # type: ignore
+        "not warn when setup is taking too long if the user provides the config file"
+    )
+    @patch("hdl_checker.base_server._HOW_LONG_IS_TOO_LONG", 0.1)
+    @patch.object(
+        hdl_checker.base_server.BaseServer, "configure", lambda *_: time.sleep(0.5)
+    )
+    @patch("hdl_checker.tests.DummyServer._handleUiInfo")
+    def test(handle_ui_info):
+
+        path = tempfile.mkdtemp()
+
+        config = p.join(path, "config.json")
+        source = p.join(path, "source.vhd")
+
+        # Make sure the files exist
+        open(config, "w").write("")
+        open(source, "w").write("")
+
+        project = DummyServer(_Path(path))
+        project.setConfig(Path(config), origin=ConfigFileOrigin.user)
+        # Get messages of anything to trigger reading the config
+        project.getMessagesByPath(Path(source))
+
+        handle_ui_info.assert_not_called()
+
+        removeIfExists(path)
+
     @it.should(  # type: ignore
         "not warn when setup takes less than _HOW_LONG_IS_TOO_LONG"
     )
@@ -166,7 +195,7 @@ def test(handle_ui_info):
         open(source, "w").write("")
 
         project = DummyServer(_Path(path))
-        project.setConfig(Path(config))
+        project.setConfig(Path(config), origin=ConfigFileOrigin.user)
         # Get messages of anything to trigger reading the config
         project.getMessagesByPath(Path(source))
 
@@ -220,7 +249,7 @@ def setup():
         def test():
             project = DummyServer(_Path("nonexisting"))
             with it.assertRaises(FileNotFoundError):
-                project.setConfig(str(it.project_file))
+                project.setConfig(str(it.project_file), origin=ConfigFileOrigin.user)
 
     with it.having("no project file at all"):
 
@@ -308,7 +337,7 @@ def setup():
                 }
             )
 
-            it.project.setConfig(it.config_file)
+            it.project.setConfig(it.config_file, origin=ConfigFileOrigin.user)
 
         @it.should("use MockBuilder builder")  # type: ignore
         def test():
@@ -344,7 +373,7 @@ def test():
                 "hdl_checker.base_server.WatchedFile.__init__", side_effect=[None]
             ) as watched_file:
                 old = it.project.config_file
-                it.project.setConfig(it.config_file)
+                it.project.setConfig(it.config_file, origin=ConfigFileOrigin.user)
                 it.project._updateConfigIfNeeded()
                 it.assertEqual(it.project.config_file, old)
                 watched_file.assert_not_called()
@@ -430,7 +459,10 @@ def test(handle_ui_warning):
         @patch("hdl_checker.base_server.json.dump")
         def test(_):
             with PatchBuilder():
-                it.project.setConfig(Path(p.join(TEST_PROJECT, "vimhdl.prj")))
+                it.project.setConfig(
+                    Path(p.join(TEST_PROJECT, "vimhdl.prj")),
+                    origin=ConfigFileOrigin.user,
+                )
                 it.project._updateConfigIfNeeded()
 
             entity_a = _SourceMock(
@@ -614,7 +646,10 @@ def setup(handle_ui_info):
 
             with PatchBuilder():
                 it.project = DummyServer(_Path(TEST_TEMP_PATH))
-                it.project.setConfig(Path(p.join(TEST_PROJECT, "vimhdl.prj")))
+                it.project.setConfig(
+                    Path(p.join(TEST_PROJECT, "vimhdl.prj")),
+                    origin=ConfigFileOrigin.user,
+                )
                 it.project._updateConfigIfNeeded()
                 handle_ui_info.assert_called_once_with("Added 10 sources")
 

hdl_checker/types.py

@@ -98,3 +98,8 @@ class MarkupKind(Enum):
 
 # A location range within a source file
 Range = NamedTuple("Range", (("start", Location), ("end", Optional[Location])))
+
+class ConfigFileOrigin(str, Enum):
+    "Specifies tracked design unit types"
+    user = "user"
+    generated = "generated"