Create DISTFILES_CACHE dir or prompt if !exists

[koobs]

When running testport for the first time in a freshly created poudriere environment, the following error is observable:

====>> Error: DISTFILES_CACHE directory does not exist. (c.f. poudriere.conf)

DISTFILES_CACHE=/usr/ports/distfiles

The ports tree in question is a 'none' map against the system ports tree:

• default portsnap 2015-03-29 14:00:37 /usr/ports

Suggest poudriere either:

1. Creates the DISTFILES_CACHE directory if it doesn't exist, with the following user output:

DISTFILES_CACHE (<path>) not found, creating ...
Directory created: <path>

OR

2. Prompt the user:

DISTFILES_CACHE (<path>) not found
Create directory <path>? [Y/N]

[tony]

Just encountered this, making the directory fixed it for me.

It would also be helpful if poudriere were to let you know if that variable is already set and its' value

[stefanchauveau]

mkdir /usr/ports/distfiles

but i agree on the suggestion

[rene0]

See also https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237794

[ykla]

This issue also in poudriere-devel-3.3.99.20220831 with freebsd 13.1

root@ykla:/home/ykla # poudriere bulk  -j 13-0-adm64 -O decke sysutils/docker-engine
[00:00:00] Error: DISTFILES_CACHE directory does not exist. (cf.  poudriere.conf)
Exiting with status 1