pre-commit

#!/usr/bin/env ruby

hits = []

checks = {
  #'_spec\.rb$' => ['focus:[:space:]*true'],
  '\.rb$' => ['binding\.pry', 'debugger', 'byebug', 'console\.log'],
  '\.erb$' => ['binding\.pry', 'debugger', 'byebug', 'console\.log'],
  '\.js$' => ['binding\.pry', 'debugger', 'byebug', 'console\.log'],
  '\.coffee$' => ['binding\.pry', 'debugger', 'byebug', 'console\.log'],
  '\.jsx$' => ['binding\.pry', 'debugger', 'byebug', 'console\.log'],
  '\.rake$' => ['binding\.pry', 'debugger', 'byebug'],
  '\.yml$' => ['binding\.pry', 'debugger',  'byebug']
}

blacklisted_exts = [ '\.log$', '\.rdb$' ]

# Find the names of all the filenames that have been (A)dded (C)opied or (M)odified
filenames = `git diff --cached --name-only --diff-filter=ACM`.split("\n")

# Ensure there are no special files committed
filenames.each do |filename|
  blacklisted_exts.each do |ext|
    hits.push filename if filename.match(ext)
  end
end

filenames.each do |filename|
  # Perform special checks for _spec filenames (rspec tests)
  checks.each do |filename_pattern, patterns|
    if filename.match filename_pattern
      patterns.each do |contents_pattern|
        results = `git diff --cached  #{filename} | grep "^\+[^+]" | grep "#{contents_pattern}"`.split("\n").map { |r| r.sub(/^\+[\s\t]*/, '') }
        if $? == 0
          # Add the relevant change with line number to the hits array
          results.each{ |r|
            hits.push "#{filename}:" + `grep -n '#{r}' #{filename}`.sub(/:\s+/, ' ').chomp
          }
        end
      end
    end
  end
end

if hits.any?
  puts "\e[33m>>> Please remove the following problems from these files before committing\e[0m"
  puts hits.join("\n")
end

exit 1 if hits.any?