feat: introduced plugins' custom config params autogenerated docs

Introduces plugins-custom-config-markdown-reference subcommand
which extracts plugins' custom config parameters and
renders a Markdown table with all the reference information.

Author: develop7

hls-plugin-api/src/Ide/Plugin/ConfigUtils.hs

@@ -5,7 +5,8 @@
 
 module Ide.Plugin.ConfigUtils (
   pluginsToDefaultConfig,
-  pluginsToVSCodeExtensionSchema
+  pluginsToVSCodeExtensionSchema,
+  pluginsCustomConfigToMarkdownTables
   ) where
 
 import           Control.Lens                  (at, (&), (?~))
@@ -18,8 +19,15 @@ import qualified Data.Dependent.Sum            as DSum
 import           Data.List.Extra               (nubOrd)
 import           Data.String                   (IsString (fromString))
 import qualified Data.Text                     as T
+import           GHC.TypeLits                  (symbolVal)
 import           Ide.Plugin.Config
-import           Ide.Plugin.Properties         (toDefaultJSON,
+import           Ide.Plugin.Properties         (KeyNameProxy, MetaData (..),
+                                                PluginCustomConfig (..),
+                                                PluginCustomConfigParam (..),
+                                                Properties (..),
+                                                SPropertyKey (..),
+                                                SomePropertyKeyWithMetaData (..),
+                                                toDefaultJSON,
                                                 toVSCodeExtensionSchema)
 import           Ide.Types
 import           Language.LSP.Protocol.Message
@@ -143,3 +151,92 @@ pluginsToVSCodeExtensionSchema IdePlugins {..} = A.object $ mconcat $ singlePlug
             ]
         withIdPrefix x = "haskell.plugin." <> pId <> "." <> x
         toKey' = fromString . T.unpack . withIdPrefix
+
+
+-- | Generates markdown tables for custom config
+pluginsCustomConfigToMarkdownTables :: IdePlugins a -> T.Text
+pluginsCustomConfigToMarkdownTables IdePlugins {..} = T.unlines
+    $ map renderCfg
+    $ filter (\(PluginCustomConfig _ params) -> not $ null params)
+    $ map toPluginCustomConfig ipMap
+  where
+    toPluginCustomConfig :: PluginDescriptor ideState -> PluginCustomConfig
+    toPluginCustomConfig PluginDescriptor {pluginConfigDescriptor = ConfigDescriptor {configCustomConfig = c}, pluginId = PluginId pId} =
+        PluginCustomConfig { pcc'Name = pId, pcc'Params = toPluginCustomConfigParams c}
+    toPluginCustomConfigParams :: CustomConfig -> [PluginCustomConfigParam]
+    toPluginCustomConfigParams (CustomConfig p) = toPluginCustomConfigParams' p
+    toPluginCustomConfigParams' :: Properties r -> [PluginCustomConfigParam]
+    toPluginCustomConfigParams' EmptyProperties = []
+    toPluginCustomConfigParams' (ConsProperties (keyNameProxy :: KeyNameProxy s) (k :: SPropertyKey k) (m :: MetaData t) xs) =
+        toEntry (SomePropertyKeyWithMetaData k m) : toPluginCustomConfigParams' xs
+        where
+            toEntry :: SomePropertyKeyWithMetaData -> PluginCustomConfigParam
+            toEntry (SomePropertyKeyWithMetaData SNumber MetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = T.pack $ show defaultValue,
+                    pccp'EnumValues = []
+                }
+            toEntry (SomePropertyKeyWithMetaData SInteger MetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = T.pack $ show defaultValue,
+                    pccp'EnumValues = []
+                }
+            toEntry (SomePropertyKeyWithMetaData SString MetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = T.pack $ show defaultValue,
+                    pccp'EnumValues = []
+                }
+            toEntry (SomePropertyKeyWithMetaData SBoolean MetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = T.pack $ show defaultValue,
+                    pccp'EnumValues = []
+                }
+            toEntry (SomePropertyKeyWithMetaData (SObject _) MetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = "TODO: nested object", -- T.pack $ show defaultValue,
+                    pccp'EnumValues = []
+                }
+            toEntry (SomePropertyKeyWithMetaData (SArray _) MetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = "TODO: Array values", -- T.pack $ show defaultValue,
+                    pccp'EnumValues = []
+                }
+            toEntry (SomePropertyKeyWithMetaData (SEnum _) EnumMetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = T.pack $ show defaultValue,
+                    pccp'EnumValues = map (T.pack . show) enumValues
+                }
+            toEntry (SomePropertyKeyWithMetaData SProperties PropertiesMetaData {..}) =
+                PluginCustomConfigParam {
+                    pccp'Name = T.pack $ symbolVal keyNameProxy,
+                    pccp'Description = description,
+                    pccp'Default = T.pack $ show defaultValue,
+                    pccp'EnumValues = []
+                }
+    renderCfg :: PluginCustomConfig -> T.Text
+    renderCfg (PluginCustomConfig pId pccParams) =
+        T.unlines (pluginHeader : tableHeader : rows pccParams)
+        where
+            pluginHeader = "## " <> pId
+            tableHeader =
+                "| Property | Description | Default | Allowed values |" <> "\n" <>
+                "| --- | --- | --- | --- |"
+            rows = map renderRow
+            renderRow PluginCustomConfigParam {..} =
+                "| `" <> pccp'Name <> "` | " <> pccp'Description <> " | `" <> pccp'Default <> "` | " <> renderEnum pccp'EnumValues <> " |"
+            renderEnum [] = " &nbsp; " -- Placeholder to prevent missing cells
+            renderEnum vs = "<ul> " <> (T.intercalate " " $ map (\x -> "<li><code>" <> x <> "</code></li>") vs) <> " </ul>"

hls-plugin-api/src/Ide/Plugin/Properties.hs

@@ -21,9 +21,10 @@ module Ide.Plugin.Properties
     MetaData (..),
     PropertyKey (..),
     SPropertyKey (..),
+    SomePropertyKeyWithMetaData (..),
     KeyNameProxy (..),
     KeyNamePath (..),
-    Properties,
+    Properties(..),
     HasProperty,
     HasPropertyByPath,
     emptyProperties,
@@ -42,6 +43,8 @@ module Ide.Plugin.Properties
     usePropertyByPathEither,
     usePropertyByPath,
     (&),
+    PluginCustomConfig(..),
+    PluginCustomConfigParam(..),
   )
 where
 
@@ -516,3 +519,15 @@ toVSCodeExtensionSchema' ps = case ps of
           ]
       (SomePropertyKeyWithMetaData SProperties PropertiesMetaData {..}) ->
         map (first Just) $ toVSCodeExtensionSchema' childrenProperties
+
+data PluginCustomConfig = PluginCustomConfig {
+    pcc'Name   :: T.Text,
+    pcc'Params :: [PluginCustomConfigParam]
+}
+data PluginCustomConfigParam = PluginCustomConfigParam {
+    pccp'Name        :: T.Text,
+    pccp'Description :: T.Text,
+    pccp'Default     :: T.Text,
+    pccp'EnumValues  :: [T.Text]
+}
+

src/Ide/Arguments.hs

@@ -33,6 +33,7 @@ data Arguments
   | BiosMode BiosAction
   | Ghcide GhcideArguments
   | VSCodeExtensionSchemaMode
+  | PluginsCustomConfigMarkdownReferenceMode
   | DefaultConfigurationMode
   | PrintLibDir
 
@@ -69,6 +70,7 @@ getArguments exeName plugins = execParser opts
       <|> hsubparser
         (  command "vscode-extension-schema" extensionSchemaCommand
         <> command "generate-default-config" generateDefaultConfigCommand
+        <> command "plugins-custom-config-markdown-reference" pluginsCustomConfigMarkdownReferenceCommand
         )
       <|> listPluginsParser
       <|> BiosMode <$> biosParser
@@ -86,6 +88,9 @@ getArguments exeName plugins = execParser opts
     generateDefaultConfigCommand =
         info (pure DefaultConfigurationMode)
              (fullDesc <> progDesc "Print config supported by the server with default values")
+    pluginsCustomConfigMarkdownReferenceCommand =
+        info (pure PluginsCustomConfigMarkdownReferenceMode)
+            (fullDesc <> progDesc "Print markdown reference for plugins custom config")
 
 printVersionParser :: String -> Parser PrintVersion
 printVersionParser exeName =

src/Ide/Main.hs

@@ -15,6 +15,7 @@ import           Data.Function                 ((&))
 import           Data.List                     (sortOn)
 import           Data.Text                     (Text)
 import qualified Data.Text                     as T
+import qualified Data.Text.IO                  as T (putStrLn)
 import           Data.Text.Lazy.Encoding       (decodeUtf8)
 import qualified Data.Text.Lazy.IO             as LT
 import           Development.IDE.Core.Rules    hiding (Log)
@@ -28,7 +29,8 @@ import           HIE.Bios.Types                hiding (Log)
 import qualified HIE.Bios.Types                as HieBios
 import           Ide.Arguments
 import           Ide.Logger                    as G
-import           Ide.Plugin.ConfigUtils        (pluginsToDefaultConfig,
+import           Ide.Plugin.ConfigUtils        (pluginsCustomConfigToMarkdownTables,
+                                                pluginsToDefaultConfig,
                                                 pluginsToVSCodeExtensionSchema)
 import           Ide.Types                     (IdePlugins, PluginId (PluginId),
                                                 describePlugin, ipMap, pluginId)
@@ -103,6 +105,8 @@ defaultMain recorder args idePlugins = do
 
         VSCodeExtensionSchemaMode -> do
           LT.putStrLn $ decodeUtf8 $ encodePrettySorted $ pluginsToVSCodeExtensionSchema idePlugins
+        PluginsCustomConfigMarkdownReferenceMode -> do
+            T.putStrLn $ pluginsCustomConfigToMarkdownTables idePlugins
         DefaultConfigurationMode -> do
           LT.putStrLn $ decodeUtf8 $ encodePrettySorted $ pluginsToDefaultConfig idePlugins
         PrintLibDir -> do

test/functional/ConfigSchema.hs

@@ -31,6 +31,9 @@ tests = testGroup "generate schema"
   , goldenGitDiff "generate-default-config" (defaultConfigFp ghcVersion) $ do
       stdout <- readProcess hlsExeCommand ["generate-default-config"] ""
       pure $ BS.pack stdout
+  , goldenGitDiff "plugins-custom-config-markdown-reference" (markdownReferenceFp ghcVersion) $ do
+    stdout <- readProcess hlsExeCommand ["plugins-custom-config-markdown-reference"] ""
+    pure $ BS.pack stdout
   ]
 
 vscodeSchemaFp :: GhcVersion -> FilePath
@@ -39,11 +42,17 @@ vscodeSchemaFp ghcVer = "test" </> "testdata" </> "schema" </> prettyGhcVersion
 defaultConfigFp :: GhcVersion -> FilePath
 defaultConfigFp ghcVer = "test" </> "testdata" </> "schema" </> prettyGhcVersion ghcVer </> generateDefaultConfigJson
 
+markdownReferenceFp :: GhcVersion -> FilePath
+markdownReferenceFp ghcVer = "test" </> "testdata" </> "schema" </> prettyGhcVersion ghcVer </> markdownReferenceMd
+
 vscodeSchemaJson :: FilePath
 vscodeSchemaJson = "vscode-extension-schema.golden.json"
 
 generateDefaultConfigJson :: FilePath
 generateDefaultConfigJson = "default-config.golden.json"
 
+markdownReferenceMd :: FilePath
+markdownReferenceMd = "markdown-reference.md"
+
 prettyGhcVersion :: GhcVersion -> String
 prettyGhcVersion ghcVer = map toLower (show ghcVer)