Environment variables are used everywhere in testilb. This environment
variables are global variables that define the way testlib behaves.
However is was confusing to use the variables because they were
inconsistent between each other, for example some variables that define
paths would have absolute paths while other would have relative paths,
making it error prone while using them.
This commit makes the environment variables more consistent by following
a name convention for each type of variable, as an example, variables
that define absolute paths follow this convention ABS_<path_name>_DIR,
while variables that define relative paths are defined like this
<path_name>_DIR.
Signed-off-by: Castulo Martinez <castulo.martinez@intel.com>
"Swupd clean" removes cache from certain pre-defined directories. This
commit udpdates the locations where clean looks for cache so it includes
the new locations where the cache is stored.
Swupd will continue looking at old cache locations until the bump to
format 31.
Signed-off-by: Castulo Martinez <castulo.martinez@intel.com>