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copied!<p>I'm still interested to know if there's an easier way. (There must surely be an easier way). What I ended up doing was, on a Linux PC using bash:</p> <pre><code># Get woking copy we're going to change cd ~/work rm -rf modulename cvs up -dP modulename cd modulename # Remove all files find . -name CVS -prune -o -type f -print | xargs cvs rm -f # Get the old revision cd ~ mkdir scratch cd scratch cvs -q co -D 2008-12-31 modulename cd modulename # Copy everything to the working dir and do "cvs add" on it find . -name CVS -prune -o -type f -print | \ xargs tar c | \ (cd ~/work/modulename && tar xv | \ xargs cvs add) # Check everything is OK before we commit cd ~/work/modulename cvs -nq up # it gave me an error on readme.txt because I'd deleted and then added it, so: mv readme.txt x # save good rev cvs add readme.txt # resurrect the bad rev mv x readme.txt # clobber file with good rev # Commit it cvs commit -m "Revert all changes this year" # Delete now-empty directories cvs -q up -dP # Double-check everything is back how it was diff -ur -xCVS ~/scratch/modulename ~/work/modulename </code></pre> <p>Then I discovered that there were still differences - my colleague had added filenames containing spaces, which weren't deleted by the above process. I had to delete those separately. (I should have used <code>find ... -print0</code> rather than <code>-print</code>, and passed the <code>-0</code> argument to <code>xargs</code>. I just didn't realise there were files with spaces.)</p>

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