90 lines
2.2 KiB
Ruby
90 lines
2.2 KiB
Ruby
# With ziprequire you can load ruby modules from a zip file. This means
|
|
# ruby's module include path can include zip-files.
|
|
#
|
|
# The following example creates a zip file with a single entry
|
|
# <code>log/simplelog.rb</code> that contains a single function
|
|
# <code>simpleLog</code>:
|
|
#
|
|
# require 'zip/zipfilesystem'
|
|
#
|
|
# Zip::ZipFile.open("my.zip", true) {
|
|
# |zf|
|
|
# zf.file.open("log/simplelog.rb", "w") {
|
|
# |f|
|
|
# f.puts "def simpleLog(v)"
|
|
# f.puts ' Kernel.puts "INFO: #{v}"'
|
|
# f.puts "end"
|
|
# }
|
|
# }
|
|
#
|
|
# To use the ruby module stored in the zip archive simply require
|
|
# <code>zip/ziprequire</code> and include the <code>my.zip</code> zip
|
|
# file in the module search path. The following command shows one
|
|
# way to do this:
|
|
#
|
|
# ruby -rzip/ziprequire -Imy.zip -e " require 'log/simplelog'; simpleLog 'Hello world' "
|
|
|
|
#$: << 'data/rubycode.zip' << 'data/rubycode2.zip'
|
|
|
|
|
|
require 'zip/zip'
|
|
|
|
class ZipList #:nodoc:all
|
|
def initialize(zipFileList)
|
|
@zipFileList = zipFileList
|
|
end
|
|
|
|
def get_input_stream(entry, &aProc)
|
|
@zipFileList.each {
|
|
|zfName|
|
|
Zip::ZipFile.open(zfName) {
|
|
|zf|
|
|
begin
|
|
return zf.get_input_stream(entry, &aProc)
|
|
rescue Errno::ENOENT
|
|
end
|
|
}
|
|
}
|
|
raise Errno::ENOENT,
|
|
"No matching entry found in zip files '#{@zipFileList.join(', ')}' "+
|
|
" for '#{entry}'"
|
|
end
|
|
end
|
|
|
|
|
|
module Kernel #:nodoc:all
|
|
alias :oldRequire :require
|
|
|
|
def require(moduleName)
|
|
zip_require(moduleName) || oldRequire(moduleName)
|
|
end
|
|
|
|
def zip_require(moduleName)
|
|
return false if already_loaded?(moduleName)
|
|
get_resource(ensure_rb_extension(moduleName)) {
|
|
|zis|
|
|
eval(zis.read); $" << moduleName
|
|
}
|
|
return true
|
|
rescue Errno::ENOENT => ex
|
|
return false
|
|
end
|
|
|
|
def get_resource(resourceName, &aProc)
|
|
zl = ZipList.new($:.grep(/\.zip$/))
|
|
zl.get_input_stream(resourceName, &aProc)
|
|
end
|
|
|
|
def already_loaded?(moduleName)
|
|
moduleRE = Regexp.new("^"+moduleName+"(\.rb|\.so|\.dll|\.o)?$")
|
|
$".detect { |e| e =~ moduleRE } != nil
|
|
end
|
|
|
|
def ensure_rb_extension(aString)
|
|
aString.sub(/(\.rb)?$/i, ".rb")
|
|
end
|
|
end
|
|
|
|
# Copyright (C) 2002 Thomas Sondergaard
|
|
# rubyzip is free software; you can redistribute it and/or
|
|
# modify it under the terms of the ruby license.
|