From 62d937df42a82ee5f7a1f1521dbf730d46fc286f Mon Sep 17 00:00:00 2001
From: David Escalona <david.escalona@digi.com>
Date: Thu, 23 Mar 2023 14:09:07 +0100
Subject: [PATCH] e2fsprogs: extend recipe to format data partition on first
 boot for block based devices

Signed-off-by: David Escalona <david.escalona@digi.com>
---
 .../e2fsprogs/e2fsprogs_%.bbappend            | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 meta-digi-dey/recipes-devtools/e2fsprogs/e2fsprogs_%.bbappend

diff --git a/meta-digi-dey/recipes-devtools/e2fsprogs/e2fsprogs_%.bbappend b/meta-digi-dey/recipes-devtools/e2fsprogs/e2fsprogs_%.bbappend
new file mode 100644
index 000000000..4ef05d017
--- /dev/null
+++ b/meta-digi-dey/recipes-devtools/e2fsprogs/e2fsprogs_%.bbappend
@@ -0,0 +1,36 @@
+# Copyright (C) 2023 Digi International.
+
+pkg_postinst_ontarget:${PN}-mke2fs() {
+	get_emmc_block_device() {
+		for emmc_number in $(seq 0 9); do
+			if [ -b "/dev/mmcblk${emmc_number}" ] &&
+			   [ -b "/dev/mmcblk${emmc_number}boot0" ] &&
+			   [ -b "/dev/mmcblk${emmc_number}boot1" ] &&
+			   [ -c "/dev/mmcblk${emmc_number}rpmb" ]; then
+				echo "/dev/mmcblk${emmc_number}"
+				break
+			fi
+		done
+	}
+
+	get_emmc_data_device() {
+		local EMMC_BLOCK_DEVICE="$(get_emmc_block_device)"
+		if [ -n "${EMMC_BLOCK_DEVICE}" ]; then
+			local DATA_DEVICE="$(blkid ${EMMC_BLOCK_DEVICE}p* | sed -ne "{s,\(^${EMMC_BLOCK_DEVICE}[^:]\+\):.*PARTLABEL=\"data\".*,\1,g;T;p}" | sort -u)"
+			[ -n "${DATA_DEVICE}" ] && echo "${DATA_DEVICE}"
+		fi
+	}
+
+	# Format and mount 'data' partition in block system based devices only if it has no format.
+	EMMC_DATA_DEVICE="$(get_emmc_data_device)"
+	if [ -n "${EMMC_DATA_DEVICE}" ] && ! blkid ${EMMC_DATA_DEVICE} | grep -q "TYPE="; then
+		# Format the partition.
+		echo "WARNING: 'data' partition has no format or it is invalid. Formatting..."
+		if ! mkfs.ext4 "${EMMC_DATA_DEVICE}"; then
+			echo "ERROR: Could not format 'data' partition"
+		else
+			# Trigger 'add' event for the partition.
+			echo -n add > "/sys/class/block/${EMMC_DATA_DEVICE##*/}/uevent"
+		fi
+	fi
+}