lorry.tar-importer: Improve support for PAX extended headerspedro/fix-gcc-tar-import

Sometimes the tar files will contain PAX extended headers to deal with
cases where the information needed doesn't fit initial header.

One of these cases is when the path is larger than 100 characters. An
extended header will appear before the block including the contents of
this file, including information about the entire path.

The PAX extended headers contain one or multiple records constructed as
follows:

    "%d %s=%s\n", <length>, <keyword>, <value>

This commit makes sure that we always read the extended header blocks,
and in the case of finding one, we parse its records looking for 'path'
information. If this information is found, is stored for the next
iteration.

As a side effect, this commit also fixes a bug where we weren't ignoring
the extended header contents because the truncated path was ending on '/'
and the script was skipping any actions given that it thought that it
was a folder (and it wasn't).

0 files changed, 0 insertions, 0 deletions