subversion

svn diff -x "-bw --ignore-eol-style" is your friend when somebody decides to change the end of line style and strip all trailing whitespace from the files in your repo.

Here’s a sequence of unbelievable things:

1. Yes, despite a lifetime in Subversion, I’m really this new to git!
2. I’m going to link to Livejournal in this post!
3. Git really doesn’t have an equivalent to svn cp filename!

I spent a surprisingly long time reviewing the man pages and surfing the internet to confirm this, but git really assumes you’ll never want to copy a file with history. Here’s that Livejournal link I promised, where markpasc has similar complaints — from 2008, no less.

I was looking for a way to copy a file with history because I needed to break a single file into multiple pieces. In my Subversion days I would have done a svn cp old-file.php new-file.php. From there I could prune old-file.php and new-file.php down to what I needed while preserving the full history for all the code that remained.

Or perhaps I’m missing something?

I stumbled on them by accident, but once I discovered Subversion supports action hooks that can fire before or after a transaction, I knew exactly what to do with them.

I foolishly just moved a Subversion repository by importing the contents of a current checkout into a new repository. Wrong. A friend pointed out these instructions that make it easy and preserve the revision history.

Here’s the trick:

svnadmin dump /path/to/repository > repository-name.dmp

and

svnadmin load repository-name < repository-name.dmp

[tags]svn, subversion, move, repository[/tags]