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creating a patch from cvs

January 11 2008 : posted under drupal cvs

specifically I wanted to create a patch equal to the changes between two versions of Drupal - but it turns out that a packaging script adds some info to releases that isn’t in the cvs version so this doesn’t quite do what I wanted.

it’s still useful though …

  1. checkout the current version

  2. generate the patch as a diff between the previos version and this one

  3. optionally run a diff to compare the two versions (cvs and svn) to check they are the same

cvs -z6 \
checkout -d drupal5 -r DRUPAL-5-6 drupal

cd drupal
cvs diff -N -u -rDRUPAL-5-5 -r DRUPAL-5-6 > ../drupal-5-5-to-5-6.txt
cd ..
diff -r drupal-cvs/ drupal | grep -v .svn | grep -v CVS | less

In eclipse open the svn drupal project - go to teams - apply patch

and (except for the packaging stuff) you have an updated drupal for your svn repository.