helm/bin/wag

72 lines
1.5 KiB
Ruby
Executable file

#!/usr/bin/env ruby
# A hacky script that allows you to search with ag
# <https://github.com/ggreer/the_silver_searcher> and edit the results in
# $EDITOR. The changes are propagated to all listed files, if any.
#
# Usage: wag [pattern]
#
# TODO Also rename files whose names have been changed
if ARGV.empty?
puts "You didn't enter in anything!"
exit 1
end
def quit
t.unlink
exit 1
end
require 'tempfile'
require 'shellwords'
t = Tempfile.new('.ag-results')
out = system("ag #{ARGV.join(' ')} --nogroup --nocolor > #{t.path}")
if [false, nil].include? out
puts "No matches" if out === false
t.unlink
exit 1
end
old_lines = File.open(t.path).readlines
system("#{ENV['EDITOR']} #{t.path}")
lines = File.open(t.path).readlines
t.unlink
if old_lines.length != lines.length
puts "There was a line-number mismatch. Abort! Abort! Abort!"
exit 2
end
i = nil
lines.each_with_index do |line, i|
next if line.empty? || line.eql?(old_lines[i])
l = line.split(":", 3)
unless l.length == 3
puts "Line #{i} is malformed as was skipped"
next
end
filename = Shellwords.escape(l[0])
lineno = Shellwords.escape(l[1])
content = l[2].gsub("'", "\\'")
if system("sed -i .bak '#{lineno}c\\
#{content}' #{filename}")
puts "Replaced line #{lineno} in #{filename}"
else
puts "Failed to replace line #{lineno} in #{filename}"
end
system("rm -f #{filename}.bak") if File.exists?("#{filename}.bak")
end
if i === nil
puts "Didn't do nuthin'"
else
puts "Done!"
end