227 lines
6.3 KiB
Ruby
227 lines
6.3 KiB
Ruby
#!/usr/bin/env ruby
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=begin
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Create a cconfig directory based on a xml input.
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(C) 2005 by René Nussbaumer aka KillerFox
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This script is written for the clinux-System and published
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under the terms of GPL 2.0
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Version: 0.3
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ChangeLog:
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Version 0.3 (René Nussbaumer):
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* Added binary file support
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* Added sha1 checksum for binary files
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Version 0.2 (René Nussbaumer):
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* Added some commandline options
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* Added «level» so control the restrictivity of the program
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* Added more «intelligence» to the program, to detect internal broken dependcies.
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* Support «debug»-Levels.
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* Print statistic at the end of the programs about warnings and errors.
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Version 0.1 (René Nussbaumer):
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* Initial
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Todo:
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* Use an rexml alternative
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* Some cleanup
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* Optimize
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* Testing?
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Features:
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* Create a cconfig directory based on a xml
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=end
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require 'rexml/document'
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require 'getoptlong'
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require 'base64'
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require 'digest/sha1'
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@verbose = 0
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@level = 1
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@version = '0.3'
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@warnings = 0
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@errors = 0
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@checklist = Array.new
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def printMsg(prefix, msg)
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puts '%-12s %s' % [prefix + ':', msg]
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end
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def error(msg, fatal = 0)
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@errors += 1
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fatal = 0 if(@level < 1)
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fatal = 255 if(@level > 1 && !fatal)
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printMsg(fatal != 0 ? 'PANIC' : 'ERROR', msg)
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Kernel.exit(-fatal) if(fatal != 0)
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end
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def warn(msg)
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error(msg, 1) if(@level > 1)
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@warnings += 1
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printMsg('WARNING', msg)
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end
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def info(msg)
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printMsg('INFO', msg)
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end
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def debug(msg, verbosity = 1)
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if(@verbose >= verbosity)
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printMsg("DEBUG(#{verbosity})", msg)
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end
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end
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def createObject(name)
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error("#{name} already exists.", 1) if(FileTest.exists?(name))
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begin
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Dir.mkdir(name)
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rescue
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error("Could not create directory #{name}: #{$!}. Abort.", 7)
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end
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debug("Object #{File.expand_path(name)} has been created.", 4)
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end
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def createAttribute(name, content = nil)
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warn("#{name} already exists. Overwrite.") if(FileTest.exists?(name))
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begin
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file = File.new(name, 'w')
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file.print content if(content && !content.empty?)
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file.close
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debug("Attribute #{File.expand_path(name)} has been created", 4)
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rescue
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error("Could not create file #{name}: #{$!}. Skipped.")
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end
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end
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def createLink(name, target, type)
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warn("#{name} already exists. Overwrite.") if(FileTest.exists?(name))
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error("Broken dependencies! Please take a look if #{target} exists on your system", 2) if(type == 'external' && !FileTest.exists?(target))
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if(!FileTest.exists?(target) && type != 'external')
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#info("Possible break. But maybe the target #{target} does not yet exists. Checking later.")
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exptarget = File.expand_path(target)
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@checklist << exptarget
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debug("Adding #{target} to the list of internal dependcies to check.", 2)
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end
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begin
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error('You\'ve a system which does not support symbolic links. Abort.', 3) if(File.symlink(target, name) != 0)
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rescue
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error("Could not create symlink #{name} => #{target}: #{$!}.", 3)
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end
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debug("Link #{File.expand_path(name)} has been created", 4)
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end
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def doWork(elm)
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name = elm.name
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attrname = elm.attributes['name']
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error("XML Tag with missing name attribute!", 5) if(!attrname)
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if(name =~ /(object|cconfig)/)
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if(name == 'cconfig')
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if(elm.attributes['version'])
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info("Found a version string: #{elm.attributes['version']}")
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warn("This XML is maybe incompatible with this programm. I'm a version #{@version} script. The XML is generated with a version #{elm.attributes['version']} script. Please update.") if(elm.attributes['version'] > @version)
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end
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end
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createObject(attrname)
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if(elm.has_elements?)
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pwd = Dir.pwd
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Dir.chdir(attrname)
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elm.each_element { |e|
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doWork(e)
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}
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Dir.chdir(pwd)
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end
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elsif(name == 'attribute')
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text = nil
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e = nil
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text = e.value if((e = elm.get_text))
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if(text && elm.attributes['type'] && elm.attributes['type'] == 'binary')
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text = Base64.decode64(text)
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if(Digest::SHA1.hexdigest(text) != elm.attributes['sha1'])
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warn("SHA1 differs from file: #{Dir.pwd}#{attrname}")
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end
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end
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createAttribute(attrname, text)
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elsif(name == 'link')
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error("link-Tag without content.", 6) if(!elm.has_text?)
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error("link with missing target. Skipped.") if(!elm.attributes['target'])
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createLink(attrname, elm.get_text.value, elm.attributes['target'])
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end
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end
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puts "This is #{File.basename(__FILE__)} v#{@version} by René Nussbaumer"
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puts
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opts = GetoptLong.new(
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['--verbose', '-v', GetoptLong::OPTIONAL_ARGUMENT],
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['--level', '-l', GetoptLong::REQUIRED_ARGUMENT],
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['--version', '-V', GetoptLong::NO_ARGUMENT]
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)
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opts.each { |arg,value|
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case arg
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when '--verbose'
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@verbose += 1
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value.each_byte { |x|
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if(x.chr == 'v')
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@verbose += 1
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end
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}
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debug("Verbosity set to: #{@verbose}")
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when '--level'
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debug("Setting level to: #{value}", 3)
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case value
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when 'low'
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@level = 0
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when 'normal'
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@level = 1
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when 'paranoid'
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@level = 2
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else
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warn('Unknown level: ' + value)
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end
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when '--version'
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Kernel.exit(0)
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else
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warn("Unknown option #{arg}#{value && !value.empty? ? ('with value ' + value) : ''}")
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end
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}
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if(!ARGV[0])
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puts 'Need at least one argument'
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puts "Usage: #{__FILE__} <xml file|->"
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Kernel.exit(1)
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end
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filedesc = $stdin
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if(ARGV[0] != '-')
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filedesc = File.new(ARGV[0])
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end
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doc = REXML::Document.new filedesc
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doWork(doc.root)
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if(!@checklist.empty?)
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info('Now checking all broken internal dependcies again')
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broken = 0
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@checklist.each { |path|
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debug("Checking #{path}.", 2)
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if(!FileTest.exists?(path))
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broken += 1
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warn("Broken dependcies. #{path} does not exist. Please fix.")
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end
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}
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info('Looks good.') if(broken == 0)
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info('Bad, bad.') if(broken > 0)
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end
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info("Successed. #{@warnings} warnings, #{@errors} errors")
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