Added remote.<name>.annex-push and remote.<name>.annex-pull

The former can be useful to make remotes that don't get fully synced with
local changes, which comes up in a lot of situations.

The latter was mostly added for symmetry, but could be useful (though less
likely to be).

Implementing `remote.<name>.annex-pull` was a bit tricky, as there's no one
place where git-annex pulls/fetches from remotes. I audited all
instances of "fetch" and "pull". A few cases were left not checking this
config:

* Git.Repair can try to pull missing refs from a remote, and if the local
  repo is corrupted, that seems a reasonable thing to do even though
  the config would normally prevent it.
* Assistant.WebApp.Gpg and Remote.Gcrypt and Remote.Git do fetches
  as part of the setup process of a remote. The config would probably not
  be set then, and having the setup fail seems worse than honoring it if it
  is already set.

I have not prevented all the code that does a "merge" from merging branches
from remotes with remote.<name>.annex-pull=false. That could perhaps
be done, but it would need a way to map from branch name to remote name,
and the way refspecs work makes that hard to get really correct. So if the
user fetches manually, the git-annex branch will get merged, for example.
Anther way of looking at/justifying this is that the setting is called
"annex-pull", not "annex-merge".

This commit was supported by the NSF-funded DataLad project.
This commit is contained in:
Joey Hess 2017-04-05 13:04:02 -04:00
parent eab6146e53
commit 29e73f76ef
No known key found for this signature in database
GPG key ID: DB12DB0FF05F8F38
11 changed files with 96 additions and 23 deletions

View file

@ -129,7 +129,7 @@ serveClient th u r q = bracket setup cleanup start
-- Connect to peer's tor hidden service.
transport :: Transport
transport (RemoteRepo r _) url@(RemoteURI uri) th ichan ochan =
transport (RemoteRepo r gc) url@(RemoteURI uri) th ichan ochan =
case unformatP2PAddress (show uri) of
Nothing -> return ()
Just addr -> robustConnection 1 $ do
@ -168,7 +168,7 @@ transport (RemoteRepo r _) url@(RemoteURI uri) th ichan ochan =
v <- runNetProto conn P2P.notifyChange
case v of
Right (Just (ChangedRefs shas)) -> do
whenM (checkNewShas th shas) $
whenM (checkShouldFetch gc th shas) $
fetch
handlepeer conn
_ -> return ConnectionClosed