detect svn changes in a .bat

I have a .bat and inside the .bat i would like to execute a special code if there's some modification inside the svn repository (for example, compile).

From stackoverflow acemtp

• Are you wanting this to be reactive? Or, on-demand?

  For reactive, see hooks. The script will have to be named according to it's purpose: pre-commit.bat, post-commit.bat. The scripts are called as: [script] [repos-path] [revision-number]

  For, on-demand:

  • Working Copy
    • svn log
    • svn st
    • svn diff
    • svn proplist
  • Repository
    • svnlook author
    • svnlook changed
    • svnlook date
    • svnlook diff
    • svnlook history

  ---

  Example:

  svn st "C:\path\to\working\directory\" >> C:\path\to\working\project.log
  

  Every time you run the BAT, it'll add the st output to project.log. Adjust as needed.

  acemtp : It on demand. I know the svn command (it s easy to find them eveyrwhere). The question is to know how to use that in a .bat script

  acemtp : I don't want to put the status into a log file :) I want the code of the .bat that do something like: if(svn_changed()) do this else do that
  From Jonathan Lonowski

• For Win 2000 and later, this would assign the last output row from the svn status commmand to the svnOut variable and then test if the variable contains anything:

  @echo off
  set svnOut=
  set svnDir=C:Your\path\to\svn\dir\to\check
  for /F "tokens=*" %%I in ('svn status %svnDir%') do set svnOut=%%I
  
  if "%svnOut%"==""  (
      echo No changes
  ) else (
      echo Changed files!
  )
  

  Why there is a line like this

  set svnOut=
  

  you have to figure out yourself. ;-)

  acemtp : Thank you very much. It's perfect, I'll test that ASAP.

  acemtp : In fact, it doesn't work. For example, svn status returns some line with: ? files M files2 that are local modification or files that are not in the repository. I only want to have see "Changed files" when there s some repository changes.

  acemtp : I posted the answer with a modified version

  Tooony : Then I am not sure I understand what you want to do here... Do you want to perform a svn update, and if something has changed in the svn server repository, you want to perform a build with the new code? Or is it if something has been modified locally you want to rebuild? If 1: What about conflicts?
  From Tooony

• Ok, the solution I found with the help of Tooony:

  set vHEAD = 0
  set vBASE = 0
  
  set svnDir=<path to local svn directory>
  
  for /F "tokens=1,2" %%I in ('svn info -r HEAD %svnDir%') do if "%%I"=="Revision:" set vHEAD=%%J
  for /F "tokens=1,2" %%I in ('svn info -r BASE %svnDir%') do if "%%I"=="Revision:" set vBASE=%%J
  
  if "%vBASE%"=="%vHEAD"  (
      echo No changes
  ) else (
      echo Changed files!
  )
  

  From acemtp

• Have your .bat execute svnversion (if you're using Subversion) or SvnWCRev.exe (if you're using TortoiseSVN) against the top-most level of your working copy.

  Both output if your working copy has been modified.

  svnversion appends a "M" to its output. SvnWCRev.exe will print a line of text that the WC has been modified.

  From antik