We can't include a socket in a CAS tree, but it's mostly meaningless to do so
since there can't possibly be a process serving it.

Fix: While caching build artifact: "Cannot extract [path to socket file] into staging-area. Unsupported type."

See merge request !783

richardmaw-codethink authored Sep 04, 2018 and richardmaw-codethink committed Sep 14, 2018

Overriding the config with a custom config file on the command-line
prevents it merging in the test-specific configuration
and can permit it to attempt to initialise the user's cache.

richardmaw-codethink authored Sep 05, 2018 and richardmaw-codethink committed Sep 14, 2018

They were moving the whole tmpdir to move the project repository.
This moves the cache directories etc. as well, meaning cli.run can't find them.
This was worked around by setting configure=False,
but this has the side-effect of making use of the user's caches,
which it should not be doing for reproducibility reasons.

By changing the tempdir layout to have the project in a subdirectory
we can move the project around for the relative workspace tests
without losing track of the configured state directories,
so we can leave configure=True and avoid touching the user's caches.