function find_source
find_source is a pretty short set of commands which does just what
the name says.
Main purpose
- Find out if the source tarball being requested is already on the
system.
- If not, and a SOURCE_URL is given the file will be
downloaded before proceeding. src2pkg will check for wget, rsync, curl
or lynx and use the first one it finds or you can specify which one to
use by using the DOWNLOADER='' variable in your src2pkg.conf file.
Notes
The final NAME and VERSION for the package are separated from the name
of the source tarball in pre_process. find_source looks for the real
tarball in the SOURCES_DIR or CWD or as link or URL
find_source can be skipped if you are building a package which uses no
archive. The trackinstall porgram included with src2pkg skips this step
as it assumes you are working with already-unpacked sources.