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firmware-nonfree
================
Upstream
--------
firmware-nonfree is based on the linux-firmware.git repository, which
does not currently make tarball (or tagged) releases. Also, some of
its contents are not clearly redistributable, and some are obsolete
for Debian's purposes.
We set the upstream version to the date of the last commit and use the
'debian/bin/genorig.py' script to generate a tarball from a git
repository. The [upstream] excluded field in 'debian/config/defines'
lists file patterns that should be excluded from the tarball.
Licences
--------
The upstream source includes the file 'WHENCE' which lists the licence
and any source code for each file. The script
'debian/bin/check_upstream.py' will warn about any files that aren't
recognised to be distributable based on the information in 'WHENCE'
and that haven't been excluded.
Each binary package is assumed to have a different licence(s). The
installed 'copyright' file is taken from the 'LICENSE' file in its
subdirectory.
Some firmware redistribution licences require us to prompt the user to
accept an EULA. In this case, put the EULA text in 'LICENSE.install'
and set the [base] license-accept field to 'required'. There is no
upstream provision for EULAs.
Binary package definition
-------------------------
The binary package definitions are placed under 'debian/config' and
written in a format similar to INI files, parsed using the Python
ConfigParser module
<http://docs.python.org/release/2.7/library/configparser.html>,
The [base] packages field in the top-level 'defines' file lists all
the binary package names, without the fixed prefix 'firmware-'.
For each binary package, there is a subdirectory with matching name
(again without the prefix) containing another 'defines' file with
metadata. Any non-upstream firmware files are also included in
these subdirectories.
The script 'debian/bin/check_upstream.py' will list the upstream
firmware files that are non-free but not assigned to any binary
package.
Required metadata:
[base] desc: Short description of related hardware, used in Description
[base] files: List of files to be included, one per line
[base] longdesc: Longer description of related hardware and drivers, used in
Description.
Optional metadata:
[base] uri: Upstream URL, used as Homepage and in copyright file. Not
needed if the contents come from linux-firmware.git.
[base] license-accept: Set to 'required' if we must prompt the user to
accept a EULA on installation
[base] license-title: Title of the EULA
[base] support: Set to 'initramfs-tools' if update-initramfs should be
invoked after installation
[base] replaces: Used as Replaces field
[base] conflicts: Used as Conflicts field
[base] provides: Used as Provides field
Optional per-file metadata:
[<filename>_base] desc: One-line description for this file, used in
package description
[<filename>_base] version: Verson number for this file, used in package
description
To re-generate debian/control (and other files) based on these
definitions:
1. Install the current linux-support-<kernelversion> package
2. Ensure debian/rules.defs has the right value of KERNELVERSION
3. Run: debian/rules debian/control
-- Ben Hutchings <ben@decadent.org.uk>, Wed, 25 Nov 2015 22:41:15 +0000
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