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Init.purs
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Init.purs
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module Pulp.Init
( action
) where
import Prelude
import Pulp.Args
import Pulp.Outputter
import Control.Monad.Error.Class (throwError)
import Data.Array (cons)
import Data.Foldable (for_)
import Data.List (List(Nil), fromFoldable)
import Data.String (joinWith)
import Data.Version.Haskell as HVer
import Effect.Aff (Aff)
import Effect.Class (liftEffect)
import Effect.Exception (error)
import Node.Encoding (Encoding(UTF8))
import Node.FS.Aff (writeTextFile, exists)
import Node.Path as Path
import Node.Process as Process
import Pulp.Args.Get (getFlag)
import Pulp.PackageManager (launchBower, launchPscPackage)
import Pulp.System.Files (mkdirIfNotExist)
import Pulp.Utils (throw)
import Pulp.Validate (getPursVersion)
foreign import bowerFile :: String -> String
data InitStyle = Bower | PscPackage
data EffOrEffect = UseEff | UseEffect
unlines :: Array String -> String
unlines arr = joinWith "\n" arr <> "\n"
gitignore :: String
gitignore = unlines [
"/bower_components/",
"/node_modules/",
"/.pulp-cache/",
"/output/",
"/generated-docs/",
"/.psc-package/",
"/.psc*",
"/.purs*",
"/.psa*"
]
pursReplFile :: String
pursReplFile = unlines [
"import Prelude"
]
mainFile :: EffOrEffect -> String
mainFile = case _ of
UseEffect -> unlines [
"module Main where",
"",
"import Prelude",
"import Effect (Effect)",
"import Effect.Console (log)",
"",
"main :: Effect Unit",
"main = do",
" log \"Hello sailor!\""
]
UseEff -> unlines [
"module Main where",
"",
"import Prelude",
"import Control.Monad.Eff (Eff)",
"import Control.Monad.Eff.Console (CONSOLE, log)",
"",
"main :: forall e. Eff (console :: CONSOLE | e) Unit",
"main = do",
" log \"Hello sailor!\""
]
testFile :: EffOrEffect -> String
testFile = case _ of
UseEffect -> unlines [
"module Test.Main where",
"",
"import Prelude",
"import Effect (Effect)",
"import Effect.Console (log)",
"",
"main :: Effect Unit",
"main = do",
" log \"You should add some tests.\""
]
UseEff -> unlines [
"module Test.Main where",
"",
"import Prelude",
"import Control.Monad.Eff (Eff)",
"import Control.Monad.Eff.Console (CONSOLE, log)",
"",
"main :: forall e. Eff (console :: CONSOLE | e) Unit",
"main = do",
" log \"You should add some tests.\""
]
projectFiles :: InitStyle -> EffOrEffect -> String -> String -> Array { path :: String, content :: String }
projectFiles initStyle effOrEffect pathRoot projectName =
case initStyle of
Bower -> cons bowerJson common
PscPackage -> common
where
fullPath pathParts = Path.concat ([pathRoot] <> pathParts)
bowerJson = { path: fullPath ["bower.json"], content: bowerFile projectName }
common = [ { path: fullPath [".gitignore"], content: gitignore }
, { path: fullPath [".purs-repl"], content: pursReplFile }
, { path: fullPath ["src", "Main.purs"], content: mainFile effOrEffect }
, { path: fullPath ["test", "Main.purs"], content: testFile effOrEffect }
]
init :: InitStyle -> EffOrEffect -> Boolean -> Outputter -> Aff Unit
init initStyle effOrEffect force out = do
cwd <- liftEffect Process.cwd
let projectName = Path.basename cwd
out.log $ "Generating project skeleton in " <> cwd
let files = projectFiles initStyle effOrEffect cwd projectName
when (not force) do
for_ files \f -> do
fileExists <- exists f.path
when fileExists do
throwError <<< error $ "Found " <> f.path <> ": "
<> "There's already a project here. Run `pulp init --force` "
<> "if you're sure you want to overwrite it."
for_ files \f -> do
let dir = Path.dirname f.path
when (dir /= cwd) (mkdirIfNotExist dir)
writeTextFile UTF8 f.path f.content
install initStyle effOrEffect
where
install Bower UseEff = do
launchBower ["install", "--save", "purescript-prelude@3.3.0", "purescript-console@3.0.0"]
launchBower ["install", "--save-dev", "purescript-psci-support@3.0.0"]
install Bower UseEffect = do
launchBower ["install", "--save", "purescript-prelude", "purescript-console", "purescript-effect"]
launchBower ["install", "--save-dev", "purescript-psci-support"]
install PscPackage UseEff = do
launchPscPackage ["init"]
launchPscPackage ["install", "eff"]
launchPscPackage ["install", "console"]
launchPscPackage ["install", "psci-support"]
install PscPackage UseEffect = do
launchPscPackage ["init"]
launchPscPackage ["install", "effect"]
launchPscPackage ["install", "console"]
launchPscPackage ["install", "psci-support"]
action :: Action
action = Action \args -> do
force <- getFlag "force" args.commandOpts
pscPackage <- getFlag "pscPackage" args.globalOpts
withEff <- getFlag "withEff" args.commandOpts
withEffect <- getFlag "withEffect" args.commandOpts
out <- getOutputter args
effOrEffect <- getEffOrEffect out withEff withEffect
if withEff && withEffect
then throw "Cannot specify both --with-eff and --with-effect. Please choose one and try again."
else init (if pscPackage then PscPackage else Bower) effOrEffect force out
where
minEffectVersion = HVer.Version (fromFoldable [0, 12, 0]) Nil
getEffOrEffect out withEff withEffect
| withEff = pure UseEff
| withEffect = pure UseEffect
| otherwise = do
ver <- getPursVersion out
if ver < minEffectVersion
then pure UseEff
else pure UseEffect