Fixesguix/guix#2410.
Until now, ‘guix shell’ and ‘guix time-machine’ would store GC roots under
~/.cache/guix. However, this directory is unreadable to guix-daemon when it’s
running without root privileges. This commit changes ‘guix shell’ and ‘guix
time-machine’ so they store GC roots under /var/guix/profiles/per-user/$USER,
in a world-readable directory.
An added benefit is that, in cluster setups, user homes no longer need to be
mounted on the head node for GC to work (assuming ‘guix build -r’ and similar
are not used).
* guix/inferior.scm (%inferior-cache-directory): Change default value to be
under ‘%profile-directory’.
(%legacy-inferior-cache-directory): New variable.
(cached-channel-instance): Add ‘maybe-remove-expired-cache-entries’ call.
* guix/scripts/environment.scm (launch-environment/container)[nesting-mappings]:
Add /inferiors and /profiles sub-directories of ‘%profile-directory’. Call
‘mkdir-p’ for these two directories.
* guix/scripts/shell.scm (%profile-cache-directory): Change default value to
be under ‘%profile-directory’.
(%legacy-cache-directory): New variable.
(guix-shell): Add call to ‘maybe-remove-expired-cache-entries’.
Change-Id: Ie7d6c16a55b35c7beb18078c967d6fc902bf68d0
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
d12c4452a4