main/postmarketos-mkinitfs: add postprocess scripts (MR 2056)

[ci:skip-build]: already built successfully in CI

main/postmarketos-mkinitfs/APKBUILD

 # Maintainer: Oliver Smith <ollieparanoid@postmarketos.org>
 pkgname=postmarketos-mkinitfs
 pkgver=0.22
-pkgrel=1
+pkgrel=2
 pkgdesc="Tool to generate initramfs images for postmarketOS"
 url="https://postmarketos.org"
 depends="
@@ -57,5 +57,5 @@ sha512sums="5037cb7285bb7c0c40ca9e6df332d882ef9a8b379756c785f921e062dab1b7e7f313
 bafd06286594102b8b3b126c3ae0a77a97f004ab804f03426154310c5107a1acaf3636bdba92626333adfe4fb0df32ff42c6d8d9e7adf35f6da620c6e14407a1  init.sh.in
 9a18ccd14ab5a9e2decc3df35c9b489cbb94b57dc180f0919d0cdf003de5f0f4730beb96d5c3d19b13aebc6d6fe046aa9e81846b86a66f794ca1cb59b91eabfe  init_functions.sh
 dfc01ee0547ea88b7aa45a005e842b636e9e19bbf1705f3dad53a66d57af7c5c513c092b5469a06d9b00322e56a4d25f1b47e4c5324aafa99f5291679968d1f1  mkinitfs.sh
-fa5a6d99f05988324b8dbf35f02eee276448c04775dad85ecdd21ed0f8009472143038334967a629a021633031f6e376cc2307423d94b00e99e9a5789337aaa8  mkinitfs_functions.sh
+e91007d321b1c26b4505bba7e36da0aed1a5af7d7010ef6a1ac215975054898da3daf883c067cc071ff2c268fa0d57d2b3ca3dce1dc9b9afc4175a7724b4de3a  mkinitfs_functions.sh
 c7a3c33daeb12b33ac72207191941c4d634f15c22958273b52af381a70ebaba1d3a9299483f0c447d9e66c560151fe7b9588bb4bbef2c8914f83185984ee4622  mkinitfs_test.sh"

main/postmarketos-mkinitfs/mkinitfs_functions.sh

@@ -19,6 +19,7 @@ deviceinfo_flash_pagesize=""
 deviceinfo_generate_bootimg=""
 deviceinfo_generate_legacy_uboot_initfs=""
 deviceinfo_mesa_driver=""
+deviceinfo_mkinitfs_postprocess=""
 deviceinfo_initfs_compression=""
 deviceinfo_kernel_cmdline=""
 deviceinfo_legacy_uboot_load_address=""
@@ -407,6 +408,9 @@ create_bootimg()
 		${_second} \
 		${_dt} \
 		-o "${outfile/initramfs-/boot.img-}" || exit 1
+	if [ "${deviceinfo_mkinitfs_postprocess}" != "" ]; then
+		sh "${deviceinfo_mkinitfs_postprocess}" "$outfile"
+	fi
 	if [ "${deviceinfo_bootimg_blobpack}" = "true" ] || [ "${deviceinfo_bootimg_blobpack}" = "sign" ]; then
 		echo "==> initramfs: creating blob"
 		_flags=""