[#361] Put all warnings under ifs to always have them all

Resolves #361
kowainik · vrom911 · Feb 21, 2020 · Feb 20, 2020 · Feb 21, 2020 · Feb 20, 2020
commit 0effe8cc1f16a2d198fee342109c6843b46cf475
diff --git a/.travis.yml b/.travis.yml
@@ -55,8 +55,10 @@ script:
 
       echo "Testing that generated projects are built with cabal..."
       cd "$TRAVIS_BUILD_DIR/summoner-cli/test/golden/smallProject/"
+      echo "packages: ." > cabal.project
       cabal v2-build all
       cd "$TRAVIS_BUILD_DIR/summoner-cli/test/golden/fullProject/"
+      echo "packages: ." > cabal.project
       cabal v2-build all
     else
       stack test --system-ghc --no-terminal

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -25,6 +25,9 @@ The changelog is available [on GitHub][2].
 * [#363](https://github.com/kowainik/summoner/issues/363):
   Move from `generic-deriving` to `generic-data`.
   (by [@chshersh](https://github.com/chshersh))
+* [#361](https://github.com/kowainik/summoner/issues/361):
+  Always put all warnings in `ghc-options` inside common stanza under `if`s.
+  (by [@chshersh](https://github.com/chshersh))
 * Use `colourista` for pretty terminal formatting.
   (by [@chshersh](https://github.com/chshersh))
 * __#TUI__ Allow `brick-0.52`.

diff --git a/README.md b/README.md
@@ -100,15 +100,15 @@ Features related to the structure and content of the generated projects.
 
   ```
   -Wall
-  -Wincomplete-uni-patterns
-  -Wincomplete-record-updates
   -Wcompat
   -Widentities
-  -Wredundant-constraints       (GHC >= 8.0)
-  -fhide-source-paths           (GHC >= 8.2.2)
-  -Wmissing-export-lists        (GHC >= 8.4.1)
-  -Wpartial-fields              (GHC >= 8.4.1)
-  -Wmissing-deriving-strategies (GHC >= 8.8.1)
+  -Wincomplete-uni-patterns
+  -Wincomplete-record-updates
+  -Wredundant-constraints       (GHC ⩾ 8.0)
+  -fhide-source-paths           (GHC ⩾ 8.2)
+  -Wmissing-export-lists        (GHC ⩾ 8.4)
+  -Wpartial-fields              (GHC ⩾ 8.4)
+  -Wmissing-deriving-strategies (GHC ⩾ 8.8)
   ```
 
   Besides, the following GHC options are added to the executable, tests and benchmark stanzas:
@@ -190,8 +190,8 @@ To start using Summoner make sure that you have the following tools installed on
 
 We also have minimal version requirements for build tools:
 
-* [Cabal >= 2.4](https://www.haskell.org/cabal/)
-* [Stack >= 2.1](http://haskellstack.org)
+* [Cabal ⩾ 2.4](https://www.haskell.org/cabal/)
+* [Stack ⩾ 2.1.3](http://haskellstack.org)
 
 However, it is always recommended to use the newest versions of build tools.
 

diff --git a/summoner-cli/src/Summoner/License.hs b/summoner-cli/src/Summoner/License.hs
@@ -10,7 +10,6 @@ to work with them.
 module Summoner.License
        ( LicenseName(..)
        , License(..)
-       , cabalLicense
        , customizeLicense
        , githubLicenseQueryNames
        , parseLicenseName
@@ -41,7 +40,7 @@ data LicenseName
     | AGPL3
     | Apache20
     | MPL20
-    | None
+    | NONE
     deriving stock (Eq, Ord, Enum, Bounded, Generic)
 
 instance Show LicenseName where
@@ -55,7 +54,7 @@ instance Show LicenseName where
     show AGPL3    = "AGPL-3"
     show Apache20 = "Apache-2.0"
     show MPL20    = "MPL-2.0"
-    show None     = "None"
+    show NONE     = "NONE"
 
 newtype License = License
     { unLicense :: Text
@@ -65,11 +64,6 @@ newtype License = License
 instance FromJSON License where
     parseJSON = withObject "License" $ \o -> License <$> o .: "body"
 
--- | As it will be shown in the @cabal@ file.
-cabalLicense :: LicenseName -> Text
-cabalLicense None = "AllRightsReserved"
-cabalLicense l    = show l
-
 -- | Used for downloading the license text form @Github@.
 githubLicenseQueryNames :: LicenseName -> Text
 githubLicenseQueryNames = \case
@@ -83,7 +77,7 @@ githubLicenseQueryNames = \case
     AGPL3    -> "agpl-3.0"
     Apache20 -> "apache-2.0"
     MPL20    -> "mpl-2.0"
-    None     -> "none"
+    NONE     -> "none"
 
 parseLicenseName :: Text -> Maybe LicenseName
 parseLicenseName = inverseMap show
@@ -103,7 +97,7 @@ customizeLicense l license@(License licenseText) nm year
         in  beforeY <> year <> beforeN <> nm <> afterN
 
 fetchLicense :: LicenseName -> IO License
-fetchLicense None = pure $ License $ licenseShortDesc None
+fetchLicense NONE = pure $ License $ licenseShortDesc NONE
 fetchLicense name = do
     let licenseLink = "https://api.github.com/licenses/" <> githubLicenseQueryNames name
     licenseJson <- "curl" $|
@@ -130,7 +124,7 @@ licenseShortDesc = \case
     AGPL3    -> "GNU Affero General Public License, version 3"
     Apache20 -> "Apache License, version 2.0"
     MPL20    -> "Mozilla Public License, version 2.0."
-    None     -> "License file won't be added. Explicitly 'All Rights Reserved', eg \
+    NONE     -> "License file won't be added. Explicitly 'All Rights Reserved', eg \
         \for proprietary software. The package may not be legally modified or \
         \redistributed by anyone but the rightsholder"
 

diff --git a/summoner-cli/src/Summoner/Project.hs b/summoner-cli/src/Summoner/Project.hs
@@ -63,7 +63,7 @@ generateProject isOffline projectName Config{..} = do
 
     putText licenseText
     settingsLicenseName  <- if isOffline
-        then None <$ infoMessage "'AllRightsReserved' license is used in offline mode"
+        then NONE <$ infoMessage "'NONE' license is used in offline mode"
         else choose parseLicenseName "License: " $ ordNub (cLicense : universe)
 
     -- License creation

diff --git a/summoner-cli/src/Summoner/Template/Cabal.hs b/summoner-cli/src/Summoner/Template/Cabal.hs
@@ -16,8 +16,8 @@ import NeatInterpolation (text)
 
 import Summoner.CustomPrelude (CustomPrelude (..))
 import Summoner.Default (defaultCabal)
-import Summoner.GhcVer (GhcVer (..), cabalBaseVersions, showGhcVer)
-import Summoner.License (LicenseName (..), cabalLicense)
+import Summoner.GhcVer (cabalBaseVersions, showGhcVer)
+import Summoner.License (LicenseName (..))
 import Summoner.Settings (Settings (..))
 import Summoner.Template.Mempty (memptyIfFalse)
 import Summoner.Text (endLine, intercalateMap, packageToModule)
@@ -52,7 +52,7 @@ cabalFile Settings{..} = File (toString settingsRepo ++ ".cabal") cabalFileConte
         [ "homepage:            " <> githubUrl        | settingsGitHub ] ++
         [ "bug-reports:         " <> githubBugReports | settingsGitHub ] ++
         ( "license:             " <> licenseName) :
-        [ "license-file:        LICENSE" | settingsLicenseName /= None] ++
+        [ "license-file:        LICENSE" | settingsLicenseName /= NONE] ++
         [ "author:              " <> settingsFullName
         , "maintainer:          " <> settingsEmail
         , "copyright:           " <> settingsYear <> " " <> settingsFullName ] ++
@@ -68,7 +68,7 @@ cabalFile Settings{..} = File (toString settingsRepo ++ ".cabal") cabalFileConte
     githubBugReports = githubUrl <> "/issues"
 
     licenseName, libModuleName :: Text
-    licenseName   = cabalLicense settingsLicenseName
+    licenseName   = show settingsLicenseName
     libModuleName = packageToModule settingsRepo
 
     testedGhcs :: Text
@@ -86,7 +86,6 @@ cabalFile Settings{..} = File (toString settingsRepo ++ ".cabal") cabalFileConte
           location:            ${githubUrl}.git
         |]
 
-
     commonStanza :: Text
     commonStanza =
         [text|
@@ -95,15 +94,42 @@ cabalFile Settings{..} = File (toString settingsRepo ++ ".cabal") cabalFileConte
           build-depends:       $settingsBaseType $baseBounds
                              $commaPreludeLibrary
 
-          ghc-options:         -Wall
-                               $ghcOptions
+          $ghcOptions
 
           default-language:    Haskell2010
     |] <> defaultExtensions
 
     baseBounds :: Text
     baseBounds = cabalBaseVersions settingsTestedVersions
 
+    ghcOptions :: Text
+    ghcOptions = case settingsGhcOptions of
+        [] -> defaultGhcOptions
+        x:xs ->
+            let customGhcOptions = T.intercalate "\n" $ x : map (T.replicate 21 " " <>) xs in
+            [text|
+            ghc-options:         $customGhcOptions
+            |]
+
+    defaultGhcOptions :: Text
+    defaultGhcOptions =
+        [text|
+        ghc-options:         -Wall
+                             -Wcompat
+                             -Widentities
+                             -Wincomplete-uni-patterns
+                             -Wincomplete-record-updates
+        if impl(ghc >= 8.0)
+          ghc-options:       -Wredundant-constraints
+        if impl(ghc >= 8.2)
+          ghc-options:       -fhide-source-paths
+        if impl(ghc >= 8.4)
+          ghc-options:       -Wmissing-export-lists
+                             -Wpartial-fields
+        if impl(ghc >= 8.8)
+          ghc-options:       -Wmissing-deriving-strategies
+        |]
+
     libraryStanza :: Text
     libraryStanza =
         [text|
@@ -180,35 +206,3 @@ cabalFile Settings{..} = File (toString settingsRepo ++ ".cabal") cabalFileConte
         xs -> "  default-extensions:  "
            <> T.intercalate "\n                       " xs
            <> "\n"
-
-    ghcOptions :: Text
-    ghcOptions = case settingsGhcOptions of
-        [] -> defaultGhcOptions
-        xs -> T.intercalate "\n" xs
-
-    defaultGhcOptions :: Text
-    defaultGhcOptions =
-        [text|
-        -Wincomplete-uni-patterns
-        -Wincomplete-record-updates
-        -Wcompat
-        -Widentities
-        $versionGhcOptions
-        |]
-
-    versionGhcOptions :: Text
-    versionGhcOptions
-        =  memptyIfFalse (settingsTestedVersions `hasLeast` Ghc802)
-            "-Wredundant-constraints\n"
-        <> memptyIfFalse (settingsTestedVersions `hasLeast` Ghc822)
-            "-fhide-source-paths\n"
-        <> memptyIfFalse (settingsTestedVersions `hasLeast` Ghc844)
-            [text|
-            -Wmissing-export-lists
-            -Wpartial-fields
-            |]
-        <> memptyIfFalse (settingsTestedVersions `hasLeast` Ghc882)
-            "-Wmissing-deriving-strategies\n"
-      where
-        hasLeast :: [GhcVer] -> GhcVer -> Bool
-        hasLeast list el = all (>= el) list
diff --git a/summoner-cli/src/Summoner/Template/Doc.hs b/summoner-cli/src/Summoner/Template/Doc.hs
@@ -15,7 +15,7 @@ module Summoner.Template.Doc
        ( docFiles
        ) where
 
-import Summoner.License (License (..), LicenseName (None))
+import Summoner.License (License (..), LicenseName (NONE))
 import Summoner.Settings (Settings (..))
 import Summoner.Tree (TreeFs (..))
 
@@ -30,7 +30,7 @@ docFiles Settings{..} =
     maybeToList (File "CONTRIBUTING.md" <$> settingsContributing)
   where
     hasLicense :: Bool
-    hasLicense = settingsLicenseName /= None
+    hasLicense = settingsLicenseName /= NONE
 
     licenseName :: Text
     licenseName = show settingsLicenseName

diff --git a/summoner-cli/test/Test/Golden.hs b/summoner-cli/test/Test/Golden.hs
@@ -132,7 +132,7 @@ smallProject = Settings
     , settingsEmail          = "xrom.xkov@gmail.com"
     , settingsYear           = "2018"
     , settingsCategories     = ""
-    , settingsLicenseName    = None
+    , settingsLicenseName    = NONE
     , settingsLicenseText    = ""
     , settingsGitHub         = False
     , settingsGhActions      = False

diff --git a/summoner-cli/test/golden/fullProject/fullProject.cabal b/summoner-cli/test/golden/fullProject/fullProject.cabal
@@ -28,8 +28,7 @@ common common-options
   build-depends:       base-noprelude >= 4.9.1.0 && < 4.14
                      , relude
 
-  ghc-options:         -Wall
-                       -Wcompat
+  ghc-options:         -Wcompat
                        -Widentities
 
   default-language:    Haskell2010

diff --git a/summoner-cli/test/golden/smallProject/smallProject.cabal b/summoner-cli/test/golden/smallProject/smallProject.cabal
@@ -3,7 +3,7 @@ name:                smallProject
 version:             0.0.0.0
 synopsis:            Small test project
 description:         Small test project
-license:             AllRightsReserved
+license:             NONE
 author:              Kowainik
 maintainer:          xrom.xkov@gmail.com
 copyright:           2018 Kowainik
@@ -17,15 +17,19 @@ common common-options
 
 
   ghc-options:         -Wall
-                       -Wincomplete-uni-patterns
-                       -Wincomplete-record-updates
                        -Wcompat
                        -Widentities
-                       -Wredundant-constraints
-                       -fhide-source-paths
-                       -Wmissing-export-lists
+                       -Wincomplete-uni-patterns
+                       -Wincomplete-record-updates
+  if impl(ghc >= 8.0)
+    ghc-options:       -Wredundant-constraints
+  if impl(ghc >= 8.2)
+    ghc-options:       -fhide-source-paths
+  if impl(ghc >= 8.4)
+    ghc-options:       -Wmissing-export-lists
                        -Wpartial-fields
-                       -Wmissing-deriving-strategies
+  if impl(ghc >= 8.8)
+    ghc-options:       -Wmissing-deriving-strategies
 
   default-language:    Haskell2010
 

diff --git a/summoner-tui/src/Summoner/Tui/Kit.hs b/summoner-tui/src/Summoner/Tui/Kit.hs
@@ -248,7 +248,7 @@ configToSummonKit cRepo cOffline cConfigFile files Config{..} = SummonKit
         { projectRepo     = cRepo
         , projectDesc     = defaultDescription
         , projectCategory = ""
-        , projectLicense  = if cOffline then None else cLicense
+        , projectLicense  = if cOffline then NONE else cLicense
         }
     , summonKitProjectMeta = ProjectMeta
         { projectMetaLib = kitLib