overcommit/lib/overcommit/hook/pre_commit/mix_format.rb at main · sds/overcommit · GitHub

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# frozen_string_literal: true

module Overcommit::Hook::PreCommit

# Runs `mix format --check-formatted` against any modified ex/heex/exs files.

# @see https://hexdocs.pm/mix/main/Mix.Tasks.Format.html

class MixFormat < Base

# example message:

# ** (Mix) mix format failed due to --check-formatted.

# The following files are not formatted:

# * lib/file1.ex

# * lib/file2.ex

FILES_REGEX = /^\s+\*\s+(?<file>.+)$/.freeze

def run

result = execute(command, args: applicable_files)

return :pass if result.success?

result.stderr.scan(FILES_REGEX).flatten.

map { |file| message(file) }

end

private

def message(file)

Overcommit::Hook::Message.new(:error, file, nil, file)

end

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