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Created January 4, 2014 09:31
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リポジトリ内で指定した単語が書かれた時期を調べる
require 'shellwords'
class AnnotateLine
attr_reader :content, :meta
def initialize
@meta = {}
@content = nil
end
def add_line line
line.chomp!
if line =~ /^\t/
@content = line.gsub /^\t/, ''
else
parsed = line.match /^([^ ]+) (.*)$/
@meta[parsed[1]] = parsed[2]
end
end
def committer_time
Time.at @meta['committer-time'].to_i
end
end
class Finder
def initialize directory, word
@directory = directory
@word = word
end
def dates
annotates.map{|annotate|
annotate.committer_time
}.sort
end
private
def annotates
matched_files = `git --no-pager grep --name-only --cached --word-regexp -I --fixed-strings -e #{ Shellwords.escape(@word)} -- #{Shellwords.escape(@directory)}`
matched_files.each_line.map{|line|
path = line.chomp
annotates_for_file_word File.join(@directory, path), @word
}.flatten
end
def annotates_for_file_word file, word
annotate = `git annotate --line-porcelain #{file}`
raw_lines = annotate.split(/\n/)
lines = []
annotate = AnnotateLine.new
while raw_lines.length > 0
annotate.add_line raw_lines.shift
if annotate.content
lines << annotate
annotate = AnnotateLine.new
end
end
lines.select{|line|
line.content.include? word
}
end
end
word, directory = *ARGV
unless word and directory
warn "usage: ruby commit-dates-for-word-of-repository.rb WORD REPOSITORY"
exit 1
end
Dir.chdir directory
finder = Finder.new(directory, word)
finder.dates.each{|date|
puts date
}
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