Svn backup via rake.. easier way to obtain lastest rev?

ruby-talk
1

I have made a small script that makes a backup of
a subversion repository.. with outputfiles formatted as:
backup20050722_rev68.gz

But I wonder if there is a smarter way to determine what
the last revision?

···

--
Simon Strandgaard

require 'open3'

task :default => :svnbackup

task :svnbackup do
  repos = '/Users/simonstrandgaard/code/svnrepos'

  dummyfile = 'backuptmp'
  
  cmd = "svnadmin dump #{repos} | gzip -9 > #{dummyfile}"
  si, so, se = Open3.popen3(cmd) #do |stdin, stdout, stderr|
  si.close

  se_res = ''
  so_res = ''
  t1 = Thread.start do
    while line=so.gets
      so_res << line
      puts "stdout: #{line}"
    end
  end
  t2 = Thread.start do
    while line=se.gets
      se_res << line
      puts "stderr: #{line}"
    end
  end
  t1.join
  t2.join
  so.close
  se.close
  
  #p so_res, se_res
  ary = se_res.scan(/Dumped\srevision\s(\d+)\./m)
  rev = '_rev' + ary.flatten.last
  
  #p rev
  filename = 'backup' + Time.now.strftime('%Y%m%d')
  filename += rev
  filename += '.gz'

  mv(dummyfile, filename)
end

2

svnadmin youngest repos

···

On 7/22/05, Simon Strandgaard <neoneye@gmail.com> wrote:

I have made a small script that makes a backup of
a subversion repository.. with outputfiles formatted as:
backup20050722_rev68.gz

But I wonder if there is a smarter way to determine what
the last revision?

--
Simon Strandgaard

--
Cristi BALAN

3

Hmm.. my svnadmin does not support 'youngest'..
my svn+svnadmin versions is 1.1.3 (r12730).
however I just discovered svnlook..

svnlook youngest repos

10x Thanks

···

On 7/22/05, Cristi BALAN <mental@gmail.com> wrote:

On 7/22/05, Simon Strandgaard <neoneye@gmail.com> wrote:
> I have made a small script that makes a backup of
> a subversion repository.. with outputfiles formatted as:
> backup20050722_rev68.gz
>
> But I wonder if there is a smarter way to determine what
> the last revision?
>
> --
> Simon Strandgaard
>

svnadmin youngest repos

--
Simon Strandgaard

4

Code got reduced into this.

···

On 7/22/05, Simon Strandgaard <neoneye@gmail.com> wrote:

On 7/22/05, Cristi BALAN <mental@gmail.com> wrote:
>
> svnadmin youngest repos

Hmm.. my svnadmin does not support 'youngest'..
my svn+svnadmin versions is 1.1.3 (r12730).
however I just discovered svnlook..

svnlook youngest repos

10x Thanks

--
Simon Strandgaard

require 'open3'

task :default => :svnbackup

task :svnbackup do
  repos = '/Users/simonstrandgaard/code/svnrepos'

  revstr = `svnlook youngest #{repos}`
  rev = '_rev' + revstr.match(/\d+/).to_s
  #p rev

  filename = 'backup' + Time.now.strftime('%Y%m%d')
  filename += rev
  filename += '.gz'
  p filename

  sh "svnadmin dump #{repos} | gzip -9 > #{filename}"
end