Find imports of files

imports.sh

#!/usr/bin/env ruby

if !ARGV[0]
  puts "USAGE: #{$0} <file>"
  exit 1
end

at_exit { run! }

def run!
  needle = norm_path(ARGV[0])
  results = `ag -G 'jsx?|less' "^import .+from +['\\"][./]|require\\(['\\"][./]|@import +['\\"]"`.split("\n")

  for result in results
    source_file, linenum, line = result.split(':', 3)
    source_dir = File.dirname(source_file)

    imported_file = line.match(/(['"])([^\1]+)\1/)[2]
    imported_abs = norm_path(imported_file, source_dir)

    if needle == imported_abs
      puts "\n#{source_file}:#{linenum}\n  #{line}"
    end
  end
end

def norm_path p, dir = nil
  File.absolute_path(p, dir).sub(/\.[a-z]+$/, '')
end

requires brew install ag

Added support for require