LUCENE-3775: A shell script to generate .gitignore from svn:ignore properties.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1243467 13f79535-47bb-0310-9956-ffa450edef68

dev-tools/scripts/gitignore-gen.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+rm -f .gitignore-new
+
+for dir in `find . -path '*.svn*' -prune -o -type d -print | grep -v  -e "/build"`; do
+  ruby -e 'printf("SVN dir: %-70s", ARGV[0])' "$dir" >&2
+  svn info $dir > /dev/null 2>&1
+  if [ "$?" -eq "0" ]; then
+   svn propget "svn:ignore" $dir | ruby -e 'while $stdin.gets; (puts ARGV[0].gsub(/^\./, "") + "/" + $_) unless $_.strip.empty?; end' "$dir" > .temp
+   if [ -s .temp ]; then
+     echo " OK" >&2
+     echo -e "\n\n# $dir" >> .gitignore-new
+     cat .temp            >> .gitignore-new
+   else
+     echo " --" >&2
+   fi
+   rm .temp
+  else
+   echo " NOT svn controlled." >&2
+  fi
+done