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Current versions of the project files are built upon versions published
and licensed by Daniel Baumann, but are modified copies of those files and
thus need to be marked as such per licensing requirements (afaik he did
not pass along ownership / licensing rights to anyone when he left the
project). We should also be careful to not be misrepresenting such
modified copies as being attributed to Daniel.
Adding a new copyright line referring to "The Debian Live team" should
suffice for this.
The authorship block in man pages has also similarly been updated.
Notes:
- tweaked a copy of daniel copyright lines stating 2014 instead of 2015.
both of these cases were in files that i had personally introduced in
some of my past merged commits that moved some code around. i don't know
why they stated 2014.
- binary_onie was introduced in 2018, so that has a 2018 date instead of
2016 unlike the rest.
- 'efi-image' is a 3rd-party (Canonical Ltd) work that we bundle, but it
has been modified by 674794a8f4d61a729d2dbd6d99385d2826138694 and
36a3ba76347ef72df1c316312ed3a26aa4b0c816 so I similarly added a
debian live copyright line.
- 'grub-cpmodules' is similar. it was only changed by the indentation fix
of 36a3ba76347ef72df1c316312ed3a26aa4b0c816 but modification is
modification, and this does help cover any possible future changes that
might be made.
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the existing logic for obtaining a list of firmware packages always
downloaded a fresh copy of the archive content file, deleting the file
already in the cache. here we move to actually making use of the cache.
this helps when building multiple times, at least for the same distro. the
package list obtained is rarely going to change after all. it could of
course differ between distros, but the cache is per-distro, as it has
always been.
we of course here switch to caching each of the archive-area files
individually rather than having one file that gets overwritten (or
appended to in the case of when we kept the decompressed file).
Gbp-Dch: Short
Closes: #952911
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the existing logic was to decompress the contents file from the downloaded
archive to disk, then process it to obtain a package list. the largest
one by far is for 'main'; 'non-free' and 'contrib' are tiny in comparison.
for sid-amd64 currently, the archive file is 37 MB, while the decompressed
file it contains is 592.3 MB.
we always delete the files and download afresh (currently), and a previous
commit optimised by deleting the files once we're done with them to avoid
wasting disk space leaving them behind.
here we switch to storing the downloaded compressed file to disk instead,
reducing disk space usage (and IO) by hundreds of megabytes; piping the
decompression directly into awk instead of having awk read from the stored
file.
this moves the appending of new items into the list back within the archive
area loop, which is fine since we're replacing the file for each loop now
so the previous issue relating to appending is of no concern.
Gbp-Dch: Short
Closes: #952910
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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
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