Re: Interest in locking mechanism?

On Tue, Jan 12, 2010 at 2:33 PM, Martin Langhoff
[off-list ref] wrote:

On Tue, Jan 12, 2010 at 8:24 PM, Avery Pennarun [off-list ref] wrote:

quoted

really).  Just make a 'co' command that writes your username to
.filename.lock and chmods the file; then write a ci command that
checks the lockfile to make sure it's yours, deletes the lock file,
git commits it, and chmods the file back again.

Actually -- on the same track but even better: if you are using a
unixy system, you are likely to have all the users belong to a group,
and the files are editable by the group because they are rwx by group
members.

So write your own "git-lock" command that does "chmod g-w $@";
git-unlock reenables the group-writable bit. Done.

The trick is to track which user has the file checked out; you don't
want some random person to (accidentally) check in someone else's
file.  That's the whole point.  Of course, you can arrange for this
with some simple shell scripting.

I doubt ACLs are needed really.  RCS certainly works(1) fine without them.

Have fun,

Avery

(1) depending on your definition of "works"