In several files, the error passed from filepath.Walk to WalkFunc is
not checked. As the info argument to WalkFn is nil in case of an error,
accessing info can cause a runtime panic.
This commit adds checks for errors passed through to WalkFunc.
* Added cache-dir flag
The flag cache-dir allows users to specify the cache directory the
database is stored in.
Signed-off-by: Ken Herner <kherner@navistone.com>
* Moved dbDir definition into functions
Need to move dbDir definition into the calling functions as the cache
directory may have been specified. With dbDir defined at package level,
it would always be instantiated to the default value and would never be
updated to the user specifyed value.
Signed-off-by: Ken Herner <kherner@navistone.com>
