cyocun · August 18, 2015 08:50 · Aug 18, 2015
diff --git a/new_gist_file.rb b/new_gist_file.rb
@@ -0,0 +1,84 @@
+#!/usr/bin/ruby -Ku
+
+require 'fileutils'
+
+# つかいかた
+if ARGV.length == 0
+  print "[Usage?] $ git_diff [from SHA] [to SHA]\n"
+  exit(false)
+end
+
+# 引数が足りないよ
+if ARGV.length != 2
+  print "[Error!] Arguments are not worth."
+  exit(false)
+end
+
+# 引数をとるよ
+revFrom = ARGV[0]
+revTo = ARGV[1]
+dir =  "./diff"
+
+# エクスポート先が確保できないよ
+if !File::exist?(dir) && !FileUtils.mkdir_p(dir, :mode => 0755)
+  print "[Error!] Specified dirname is not exists & cannot mkdir.\n"
+  exit(false)
+end
+
+# おしりにスラッシュ
+if !dir.match(/\/$/)
+  dir += '/'
+end
+
+# git diffを実行
+print "[ exec ] git diff --name-status #{revFrom} #{revTo}\n"
+lines = `git diff --name-status #{revFrom} #{revTo}`
+dirName = dir + Time.now.strftime("%y%m%d") + '--' + revFrom + '_' + revTo;
+
+
+# 削除リスト
+killnote = []
+
+# 1行ずつ処理
+lines.each_line do |line|
+
+  line    = line.sub(/\n$/, '')
+  status  = line.slice!(/^[ADM]{1}\s+/).sub(/\s+/, '')
+
+  # D のとき
+  if status == 'D'
+    killnote.push(line)
+  # A, M のとき
+  else
+    from    = line.sub(/\n$/, '')
+    to      = dirName + '/' + from
+    dirname = File::dirname(to)
+
+    # すでに存在するディレクトリは無視
+    if File::exist?(dirname)
+      #print "[notice] This dir(#{dirname}) was already created.\n"
+    # いずれにも該当しなければ作成
+    else
+      # print "[ mkdir] #{dirname}\n"
+      FileUtils.mkdir_p(dirname)
+    end
+
+    # ファイルをコピー
+    if File::exist?(from)
+      # print "[ copy ] #{from} => #{to}\n"
+      FileUtils.cp(from, to)
+    end
+
+  end
+
+end
+
+# デスノート ...〆(.. )
+if killnote != []
+  print "[remove] Please check '__REMOVE_US__.txt' and delete them.\n"
+  F = open(dirName+'__REMOVE_US__.txt', 'w') do |f|
+    f.puts killnote.join("\n")
+  end
+end
+
+print "\n ---end process\n"