flycheck.sh

#!/usr/bin/env ruby
# encoding: utf-8

# poor man's flycheck for Erlang
# It looks at the modified files via `git status`, compiles them,
# and displays the errors, if any.
# For simplicity it outputs the beam's in /tmp

@repo_root = `git rev-parse --show-toplevel`.strip

changed_files = `git status --porcelain`.split("\n")
@accepted_extensions = ["erl", "yrl", "rel"]

def can_check(file_name)
  @accepted_extensions.include?(file_name.split(".").last)
end

changed_files.each do |file_section|
  file_name = file_section.split(" ").last
  # p File.join(@repo_root, file_name)
  exec("erlc -v -o /tmp/ #{File.join(@repo_root, file_name)}") if can_check(file_name)
end