main/postmarketos-mkinitfs: support verbose boot (!234)

Adds a new initfs hook, verbose-initfs, which doesn't do anything on its
own. Modify postmarketos-mkinitfs to check if this hook is installed and
if so run `set -x`.

It's done this way so verbose boot is enabled as early as possible,
before hooks are loaded.

Tested on the qemu-aarch64 device.

- pmboostrap initfs hook_add verbose-initfs
- pmbootstrap qemu --arch aarch64
- confirmed that commands are echoed to the console

main/postmarketos-mkinitfs-hook-verbose-initfs/10-verbose-initfs.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+# The verbose feature is actually implemented in postmarketos-mkinitfs itself
+# since it needs to be enabled before hooks are run. /init checks if this file
+# exists and runs "set -x" if so.
+echo "verbose-initfs is enabled. All initramfs shell commands are printed to the console."

main/postmarketos-mkinitfs-hook-verbose-initfs/APKBUILD

@@ -0,0 +1,17 @@
+pkgname="postmarketos-mkinitfs-hook-verbose-initfs"
+pkgver=0.1.0
+pkgrel=0
+pkgdesc="Print all shell commands executed by initramfs to the console"
+url="https://postmarketos.org"
+depends="postmarketos-mkinitfs"
+source="10-verbose-initfs.sh"
+arch="noarch"
+license="GPL2"
+
+package() {
+	mkdir -p "$pkgdir"/etc/postmarketos-mkinitfs/hooks/
+	install -Dm644 "$srcdir"/10-verbose-initfs.sh \
+		"$pkgdir"/etc/postmarketos-mkinitfs/hooks/
+}
+
+sha512sums="97d92de64dc870e293a47bb2959877b63f20692030277083e56e499022fc643c1f199a65bd11f8dce9634ac3b80a43dd6934e29de4cf0b53fb2e663f46675a0f  10-verbose-initfs.sh"

main/postmarketos-mkinitfs/APKBUILD

@@ -1,5 +1,5 @@
 pkgname=postmarketos-mkinitfs
-pkgver=0.7.5
+pkgver=0.7.6
 pkgrel=0
 pkgdesc="Tool to generate initramfs images for postmarketOS"
 url="https://postmarketos.org"
@@ -24,6 +24,6 @@ package() {
 	mkdir -p "$pkgdir/etc/postmarketos-mkinitfs/hooks/"
 }
 
-sha512sums="c8ed2697ba0368b907eaefe7544bff8539adc7e8247af6bd425c722e3cedeb34e303f6bd9e00f283921352bc43dff3db83f3b3c1f427ef597ac15323f1e9c3eb  init.sh.in
+sha512sums="2479b08e48450f7d46c83b1117d0d81edf26dad8f2107e2ae1b10689f1b063c38181be735957ec1a16392302815355ca879ab71fc28d084e075f490cb2ac42b5  init.sh.in
 e4972ba261a72daba0d1f2fad425a3df082e18263a716746005f31a5cae313d66c168e09cd1bd0af3cee6a97bdb4b329ee3a8d03381a5b104fb39476bdcc7938  init_functions.sh
 5ad842720e7f322bab43aa585103f5bd7e4b11e2e8cce553d406123e4379c160a1b8d7ed1b6aae75b040b2df309c105c412826a8467d552576d6d9ac1f6792ab  mkinitfs.sh"

main/postmarketos-mkinitfs/init.sh.in

@@ -1,5 +1,8 @@
 #!/bin/sh
 # shellcheck disable=SC1091
+
+[ -e /etc/postmarketos-mkinitfs/hooks/10-verbose-initfs.sh ] && set -x
+
 . /etc/deviceinfo
 . ./init_functions.sh