Date: Sat, 2 Apr 2016 22:21:18 -0700
From: Isaac Dunham <ibid.ag@gmail.com>
To: alpine-aports@lists.alpinelinux.org
Subject: [alpine-aports] [RFC] Splitting linux-firmware
Message-ID: <20160403052116.GA22996@newbook>
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Hello,
I recently checked the size of installed packages on my system, and found
that linux-firmware was the largest (~120 megabytes).
I need the Realtek firmware, and perhaps could use the i915 firmware.
So I figured it would be a significant cutdown in installed size,
as well as a major reduction in downloads, if it were possible to just
select firmware from a couple of manufacturers.

While I was in the process of doing this, I noticed a few smaller issues:
-the non-firmware files that the APKBUILD tries to delete are actually
located in /lib/firmware, not /usr/lib/firmware
-the source for carl9170 firmware is included in the final package

Here's a tentative patch that fixes those issues and tries to split
things up.

Does this look like a good idea?
Should any further splitting be done? 
For example:
-splitting iwlwifi firmware off because it's the bulk of the intel
firmware, but not the bulk of the users;
-splitting qlogic, 3com, and chelsio firmware from -misc


Thanks,
Isaac Dunham

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>From 0059b36e8677ca5a0567d68a2c7790566a099843 Mon Sep 17 00:00:00 2001
From: Isaac Dunham <ibid.ag@gmail.com>
Date: Sat, 2 Apr 2016 21:51:48 -0700
Subject: [PATCH] main/linux-firmware: split package

linux-firmware is about 120 megabytes, close to twice the size
of the kernel; most users only need about 1-5 files (gpu,
wireless, ethernet, bluetooth, cpu).
By splitting this package into smaller parts, it's possible to
cut the footprint down significantly; I would end up needing
linux-firmware-realtek and perhaps linux-firmware-intel,
for ~40 megabytes.
There is a case to be made for splitting -iwl from -intel:
iwl is roughly 23 megabytes, the bulk of -intel.

Smaller manfacturers didn't get split out, and form -misc.
---
 main/linux-firmware/APKBUILD | 87 ++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 83 insertions(+), 4 deletions(-)

diff --git a/main/linux-firmware/APKBUILD b/main/linux-firmware/APKBUILD
index 0a9bb49..a9b68fb 100644
--- a/main/linux-firmware/APKBUILD
+++ b/main/linux-firmware/APKBUILD
@@ -2,17 +2,19 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=linux-firmware
 pkgver=20151021
-pkgrel=0
+pkgrel=1
 pkgdesc="firmware files for linux"
 #url="http://git.kernel.org/?p=linux/kernel/git/dwmw2/linux-firmware.git;a=summary"
 url="http://git.kernel.org/?p=linux/kernel/git/firmware/linux-firmware.git;a=summary"
 
 arch="noarch"
 license="GPL"
-depends=
+subpackages="${pkgname}-intel ${pkgname}-amd ${pkgname}-atheros
+	${pkgname}-broadcom ${pkgname}-nvidia ${pkgname}-marvell
+	${pkgname}-realtek ${pkgname}-ti ${pkgname}-misc"
+depends="${subpackages}"
 makedepends=
 install=""
-subpackages=
 replaces="linux-grsec linux-vserver"
 
 source="http://dev.alpinelinux.org/archive/$pkgname/$pkgname-${pkgver}.tar.gz"
@@ -49,7 +51,84 @@ build() {
 package() {
 	cd "${_builddir}"
 	make DESTDIR="${pkgdir}" FIRMWAREDIR="/lib/firmware" install || return 1
-	rm -f "${pkgdir}/usr/lib/firmware/{Makefile,README,configure,GPL-3}"
+	rm -f "${pkgdir}/lib/firmware/{Makefile,README,configure,GPL-3}" || return 1
+	# carl9170 firmware is included as prebuilt and source
+	# this is the source code.
+	rm -rf "${pkgdir}/lib/firmware/carl9170fw/" || return 1
+}
+
+intel() {
+	pkgdesc="firmware for Intel hardware"
+	mkdir -p "$subpkgdir/lib/firmware" || return 1
+	mv "$pkgdir"/lib/firmware/iwlwifi* "$subpkgdir/lib/firmware/" || return 1
+	for S in e100 intel i915; do
+		mv "$pkgdir"/lib/firmware/"$S" "$subpkgdir/lib/firmware/" || return 1
+	done
+}
+
+amd() {
+	pkgdesc="firmware for AMD/ATI hardware"
+	mkdir -p "$subpkgdir/lib/firmware" || return 1
+	for S in amd-ucode amdgpu radeon r128; do
+		mv "$pkgdir"/lib/firmware/"$S" "$subpkgdir"/lib/firmware || return 1
+	done
+}
+
+atheros() {
+	pkgdesc="firmware for Atheros and Qualcomm/Atheros hardware"
+	mkdir -p "$subpkgdir/lib/firmware" || return 1
+	for S in ar3k ath10k ath9k_htc ath6k qca; do
+		mv "$pkgdir"/lib/firmware/"$S" "$subpkgdir"/lib/firmware || return 1
+	done
+	for F in "$pkgdir"/lib/firmware/ath*.* \
+		"$pkgdir"/lib/firmware/ar*.* \
+		"$pkgdir"/lib/firmware/carl9170*.* 
+			do mv "$F" "$subpkgdir"/lib/firmware/ || return 1
+	done
+}
+
+broadcom() {
+	pkgdesc="firmware for Broadcom hardware"
+	mkdir -p "$subpkgdir/lib/firmware" || return 1
+	cd "$pkgdir"/lib/firmware
+	for S in brcm bnx2* tigon; do
+		mv $S "$subpkgdir"/lib/firmware/ || return 1
+	done
+}
+
+nvidia() {
+	pkgdesc="firmware for NVIDIA hardware"
+	mkdir -p "$subpkgdir"/lib/firmware || return 1
+	mv "$pkgdir"/lib/firmware/nvidia "$subpkgdir"/lib/firmware || return 1
+}
+
+marvell() {
+	pkgdesc="firmware for Marvell hardware (including Libertas wireless cards)"
+	mkdir -p "$subpkgdir"/lib/firmware || return 1
+	cd "$pkgdir"/lib/firmware || return 1
+	mv mwl8k mwlwifi mrvl libertas "$subpkgdir"/lib/firmware/ || return 1
+}
+
+realtek() {
+	pkgdesc="firmware for Realtek hardware (networking and bluetooth)"
+	mkdir -p "$subpkgdir/lib/firmware" || return 1
+	cd "$pkgdir"/lib/firmware || return 1
+	for S in RTL8192E rtl_bt rtl_nic rtlwifi; do
+		mv $S "$subpkgdir"/lib/firmware/ || return 1
+	done
+}
+
+ti() {
+	pkgdesc="firmware for TI hardware (usb-serial adapters, wireless, SoCs)"
+	mkdir -p "$subpkgdir"/lib/firmware || return 1
+	cd "$pkgdir"/lib/firmware || return 1
+	mv ti-* ti_*.fw "$subpkgdir"/lib/firmware || return 1
+}
+
+misc() {
+	pkgdesc="firmware for hardware from assorted manufacturers"
+	mkdir -p "$subpkgdir"/lib || return 1
+	mv "$pkgdir"/lib/firmware "$subpkgdir"/lib/
 }
 
 md5sums="2960b7241de622362f1ef93592ab16d4  linux-firmware-20151021.tar.gz"
-- 
2.7.4


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