parindent

Parindent

Indent Clojure files based on the following discussions:

• Daniel Compton's call for a "no config" clojure formatter
• Nikita Prokopov's proposed simple rules
• discussion on indentation rules

Install

npm install -g parindent

Try it

To indent all your files in place, run from your project root:

parindent '**/*.{clj,cljs,cljc}' --write

Usage

$ parindent

Usage: parindent [opts] [filename ...]

A minimal indenter for Lisp code (e.g. Clojure)

Available options:
  --write                  Edit the file in-place. (Beware!)
  --list-different or -l   Print filenames of files that are different from Parindent formatting.
  --stdin                  Read input from stdin.
  --version or -v          Print Parindent version.

Current Rules

• Zero space:
  • Top-level forms
• One space:
  • Vectors, Maps, Sets
  • Lists that do NOT start with symbol
• Two space:
  • Lists starting with symbol, whose second line is NOT arg aligned
• Arg-aligned:
  • Lists starting with symbol, whose second line is arg aligned

To clarify, either of the following formats are chosen, depending on how the baz line is originally formatted:

;; Two space
(foo bar
  baz
  qux)

;; Arg-aligned
(foo bar
     baz
     qux)