Edit: There were four copies of the same logic to keep in sync;
Originally this patch deduplicated each file, but leaving a copy of
the new function in each, thus reducing the duplication but not
eliminating it. A later patch moved it into a shared function file
following further enhancements to the code in question. This has
since been revised to have the function moved to a shared file here,
which simplifies and gives a cleaner diff.
Gbp-Dch: Short
Closes: #952908
the archive content file downloaded to obtain a list of firmware packages
is always deleted and downloaded afresh currently. it may not be ideal that
we do not make use of the cache here, however while that remains
unaddressed, we might as well delete the file after we've used it in order
to not pointlessly waste disk space.
note that this file is ~613 MB for sid-amd64 currently.
Gbp-Dch: Short
Closes: #952907
where multiple archive areas are used, the code here on each loop is:
1) fetching the archive area contents file (compressed)
2) **appending** the output to that of the previous loop
3) searching the file for firmware references, adding to the list
since it appends rather than replaces, entries found in each loop get
re-added on each subsequent loop, resulting in duplication in the
resulting list
below I evaluate the possible solutions to explain why I chose the one
I chose, however the reader should not waste too much time worrying about
whether one of the other solution would have actually been better because
things are changed significantly in further commits shortly!
possible solutions:
a) switching to output (>) rather than append (>>), but this might fail
against an existing file
b) removing the file on each loop, but this will complicate any future
caching improvements that might be made here (currently the files are
always deleted and thus downloaded fresh)
c) allow the appending, evaluating the complete file after the loop
solution C warrants consideration of disk space consumption; currently the
compressed 'main' archive (for sid on amd64) expands to 592.3 MB (feb-2020),
'contrib' is 3.1 MB, and 'non-free' is 18.5 MB.
solution C was chosen here; the difference of accumulated file size vs.
max-single was minor enough to not be of particular concern (~613 vs.
~592 MB).
Gbp-Dch: Short
Closes: #952906
This makes it possible to build an image against a first distribution
(--distribution-chroot) and have the resulting image point to another
distribution (--distribution-binary). We can use this to build against a
snapshot and have the result use the original distribution that was
snapshotted.
Closes: #888507
Lyndon Brown
Raphaël Hertzog
Daniel Baumann
Daniel Baumann