There were two problems with this page:
* It didn't explain how to set up git.
* It's not necessary to set up git. git-annex init detects when git needs
configuration and automatically configures it.
get, drop: Added --auto option, which decides whether to get/drop content
as needed to work toward the configured numcopies.
The problem with bundling it up in optimize was that I then found I wanted
to run an optmize that did not drop files, only got them. Considered adding
a --only-get switch to it, but that seemed wrong. Instead, let's make
existing subcommands optionally smarter.
Note that the only actual difference between drop and drop --auto is that
the latter does not even try to drop a file if it knows of not enough
copies, and does not print any error messages about files it was unable to
drop.
It might be nice to make get avoid asking git for attributes when not in
auto mode. For now it always asks for attributes.
This reverts commit c74347a508.
I'm afraid that change was just all wrong.
* The gitattributes setting is `annex.backend`. Not `annex.backends`.
* `gitattributes` files need to start with a glob, which this commit removed.
* git config's `annex.backends` is NOT the same as the gitattributes
setting, and is not a knob that we should be encouraging users tweak.
* fsck: Check if annex.numcopies is satisfied.
* fsck: Verify the sha1 of files when the SHA1 backend is used.
* fsck: Verify the size of files when the WORM backend is used.
* fsck: Allow specifying individual files to fsk if fscking everything
is not desired.
* fsck: Fix bug, introduced in 0.04, in detection of unused data.
