JohnGurin/elm-node-console

Outputs top level variables' values according to options. Elm 0.19.1. Uses Debug.toString

Instructions

$ elm-node-console
-b --elmBin             (default: elm)
-t --tmpDir             (default: elm-stuff)
-n --runnerModuleName           (default: NodeConsole_)
-e --isNodeStderr (?) output stderr of compiled js
-C --isCachedRunner (?) reuse elm runner file ($tmpDir)/($runnerModuleName).elm
-c --cachedRunner (?) reuse elm runner file, path
-q --isColorOutput

Which top level variables to select.
Each option (except isAll) is comma separated,
so commas can't be used in regexpes
-A --isAll
-w --predefinedNoParse (?) create elm runner without touching *.elm files
-l --predefined (?) exact variable names
-p --prefixes
-s --suffixes
-r --regexpes

 usage: elm-node-console -A t M1.elm M2.elm
        elm-node-console -s out,log M1.elm M2.elm
        All boolean options must be followed by some value if precede positional
        arguments (due to usage of simple cli parser)

Code Runner

Code Runner Visual Studio Code extension usage (settings.json):

    "code-runner.executorMap": {
        "elm": "\"node_modules/.bin/elm-node-console\" -p out_ -s _out $fullFileName",
        // or
        "elm": "node node_modules/elm-node-console/dist/cli.js -A t $fullFileName",
    }

Example

-- MyModule.elm
module MyModule exposing (..)

type Type1 = Type1 Int
fn1 (Type1 a) = Type1 (a + 10)

-- MyModuleOut.elm
module MyModuleOut exposing (..)
import MyModule as M

var1_out = M.fn1 (M.Type1 10)
var2_log = Just 3
var3 = "No output"

$ elm-node-console -s _out,_log MyModuleOut.elm
MyModuleOut.var1_out
Type1 20

MyModuleOut.var2_log
Just 3