Skip to content

Instantly share code, notes, and snippets.

@Orangenhain

Orangenhain/svn-rco.rb

Created August 21, 2012 09:37
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save Orangenhain/3413952 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save Orangenhain/3413952 to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. OrangeRaven created this gist Aug 21, 2012.
    61 changes: 61 additions & 0 deletions svn-rco.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,61 @@
    #!/usr/bin/env ruby

    require 'uri'

    def params_valid?
    lengthOkay = [2,3].include? ARGV.length
    revOkay = ARGV[0].to_i.to_s == ARGV[0]

    lengthOkay && revOkay
    end

    def date_for_svn_revision(url, revision)
    output = `svn log --limit 1 -r #{revision} '#{url}' --xml | grep '<date>.*</date>'`
    date = output.strip[/^<date>(.*)<\/date>$/, 1].strip rescue nil
    end

    def parse_externals(line)
    # http://svnbook.red-bean.com/en/1.7/svn.advanced.externals.html

    # good enough(tm) for my purposes
    name, url = line.split("\s")
    end

    def get_svn(url, path, date)
    output = `svn checkout --ignore-externals --revision '{#{date}}' "#{url}" "#{path}"`
    puts " -- START --"
    puts "URL: #{url}", "path: #{path}", "date: #{date}"
    puts output
    puts " -- END --"

    Dir.chdir(path) do
    output = `svn propget 'svn:externals'`.strip

    return if output.length == 0

    externals = output.lines.collect { |line| parse_externals(line) }.compact

    externals.each do |name, url|
    get_svn(url, name, date)
    end
    end
    end

    unless params_valid?
    puts "Usage: #{File.basename __FILE__} #revision URL [path]"
    exit 1
    end

    revision = ARGV[0].to_i
    url = URI.parse(ARGV[1])
    path = ARGV[2] || File.basename(url.path) || "checkout_#{url.host}_#{revision}"

    date = date_for_svn_revision(url, revision)

    if date.nil? or date.length == 0
    puts "ERROR: could not find date for r#{revision} @ #{url}"
    puts "\tmost likely the corresponding commit did not touch the provided path"
    exit 2
    end

    get_svn url, path, date