1 files changed, 34 insertions, 0 deletions
diff --git a/jni/ruby/tool/change_maker.rb b/jni/ruby/tool/change_maker.rb
new file mode 100755
index 0000000..2bbc275
--- /dev/null
+++ b/jni/ruby/tool/change_maker.rb
@@ -0,0 +1,34 @@
+#! ./miniruby
+
+def diff2index(cmd, *argv)
+  lines = []
+  path = nil
+  output = `#{cmd} #{argv.join(" ")}`
+  if defined? Encoding::BINARY
+    output.force_encoding Encoding::BINARY
+  end
+  output.each_line do |line|
+    case line
+    when /^Index: (\S*)/, /^diff --git [a-z]\/(\S*) [a-z]\/\1/
+      path = $1
+    when /^@@\s*-[,\d]+ +\+(\d+)[,\d]*\s*@@(?: +([A-Za-z_][A-Za-z_0-9 ]*[A-Za-z_0-9]))?/
+      line = $1.to_i
+      ent = "\t* #{path}"
+      ent << " (#{$2})" if $2
+      lines << "#{ent}:"
+    end
+  end
+  lines.uniq!
+  lines.empty? ? nil : lines
+end
+
+if `svnversion` =~ /^\d+/
+  cmd = "svn diff --diff-cmd=diff -x-pU0"
+  change = diff2index(cmd, ARGV)
+elsif File.directory?(".git")
+  cmd = "git diff -U0"
+  change = diff2index(cmd, ARGV) || diff2index(cmd, "--cached", ARGV)
+else
+  abort "does not seem to be under a vcs"
+end
+puts change if change