A syntax tidy-upper (formatter) for PureScript.

npm install -g purs-tidy

You can use purs-tidy to format files in place or via STDIN / STDOUT (which is useful for editor integration):

# Formatting a collection of files in place:
$ purs-tidy format-in-place "src/**/*.purs"

# Using STDIN to format a file:
$ purs-tidy format < MyFile.purs

You can see all configuration that purs-tidy accepts using the --help flag for the command you are using:

$ purs-tidy format-in-place --help

Some common options include:

• --indent to set the number of spaces used in indentation, which defaults to 2 spaces
• --arrow-first or --arrow-last to control whether type signatures put arrows first on the line or last on the line (purty-style), which defaults to arrow-last.

spago -x ./bin/spago.dhall build
./bin/index.js --help

To accept snapshot tests:

spago -x ./test/spago.dhall test -a "--accept"

spago -x ./script/spago.dhall run -m GenerateDefaultOperatorsModule

First, install the Run on Save extension so that you can execute a command when your file is saved. Then, add this to your settings.json:

  "emeraldwalk.runonsave": {
    "commands": [
      {
        "match": ".purs",
        "cmd": "$TIDY_DIR/bin/index.js format-in-place ${relativeFile}"
      }
    ]
  }

...where $TIDY_DIR is replaced with the location of a checkout of purescript-tidy.