Added jarparser

svn path=/; revision=54

1 files changed, 46 insertions, 0 deletions

diff --git a/projects/gentoolkit-nichoj/trunk/jarparser.rb b/projects/gentoolkit-nichoj/trunk/jarparser.rb
new file mode 100755
index 0000000..9cb472f
--- /dev/null
+++ b/projects/gentoolkit-nichoj/trunk/jarparser.rb
@@ -0,0 +1,46 @@
+#!/usr/bin/ruby -w
+require 'zip/zipfilesystem'
+require 'getoptlong'
+
+opts = GetoptLong.new(
+    [ "--manifest", "-m", GetoptLong::NO_ARGUMENT ],
+    [ "--manifestparameter", "-p", GetoptLong::REQUIRED_ARGUMENT ],
+    [ "--classes", "-c", GetoptLong::NO_ARGUMENT ],
+    [ "--resources", "-r", GetoptLong::NO_ARGUMENT ]
+)
+
+domanifest = false
+manifestparameter = nil
+opts.each do |opt, arg|
+    case opt
+        when '--manifest'
+            domanifest = true
+        when '--manifestparameter'
+            manifestparameter = arg
+    end
+end
+
+if ARGV.length != 1
+    puts "Expecting one arguement, the location of a jar"
+    exit 1
+end
+
+zipfilename=ARGV[0]
+Zip::ZipFile.open(zipfilename) do |zipfile|
+    if domanifest
+        if manifestparameter.nil?
+            puts zipfile.file.read("META-INF/MANIFEST.MF")
+        else
+            zipfile.file.open("META-INF/MANIFEST.MF") do |io|
+                while line = io.gets
+                    line =~ /(.*):\s(.*)$/
+                    parameter = $1
+                    value = $2
+                    if parameter == manifestparameter
+                        puts value
+                    end
+                end
+            end
+        end
+    end
+end