Re: [BuildStream] Plans for workspaces and incremental builds

[Darius Makovsky <darius makovsky codethink co uk>]

On 2019-10-02 12:13, Darius Makovsky wrote:
> Recently I've been thinking about workspaces and how they currently 
> work
> versus how they should work in the future. One of the main goals is to
> facilitate
> remote execution (RE) builds of workspaced sources in addition to
> local build support.
> I've had some initial thoughts about this.
> […]

As a follow-up to this, some things that will need to be considered:
* How will this plan for incremental builds affect running files?
* The possibility of conflicts when applying the delta to the previous 
build tree. In this case I expect to force the delta such that it is 
functionally equivalent to a manual file change.
* The distinction of files in the cache with different attributes. This 
will be supported by the addition of attributes to file nodes in the 
remote-api[1] but will require support in buildbox-casd. This may need 
to be added to the buildstream implementation of the local cache.

[1]https://github.com/bazelbuild/remote-apis/issues/90

best regards,
Darius