From 8297499157edd15c10f9a5f7b0110986214e44cb Mon Sep 17 00:00:00 2001
From: Dany LE <dany@iohub.dev>
Date: Thu, 9 Apr 2026 01:05:39 +0200
Subject: [PATCH] feat: add resizefs service

---
 recipes-bsp/diya-resizefs/diya-resizefs.bb    | 19 +++++++++++++++++++
 recipes-bsp/diya-resizefs/files/expandfs      | 14 ++++++++++++++
 recipes-bsp/diya-resizefs/files/firstboot     |  0
 .../diya-resizefs/files/resize2fs.service     | 12 ++++++++++++
 4 files changed, 45 insertions(+)
 create mode 100644 recipes-bsp/diya-resizefs/diya-resizefs.bb
 create mode 100644 recipes-bsp/diya-resizefs/files/expandfs
 create mode 100644 recipes-bsp/diya-resizefs/files/firstboot
 create mode 100644 recipes-bsp/diya-resizefs/files/resize2fs.service

diff --git a/recipes-bsp/diya-resizefs/diya-resizefs.bb b/recipes-bsp/diya-resizefs/diya-resizefs.bb
new file mode 100644
index 0000000..ed40be7
--- /dev/null
+++ b/recipes-bsp/diya-resizefs/diya-resizefs.bb
@@ -0,0 +1,19 @@
+
+DESCRIPTION = "Auto resize file system on first boot"
+DEPENDS = ""
+RDEPENDS:${PN} = "bash"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
+
+SRC_URI += " file://resize2fs.service file://firstboot file://expandfs \
+            "
+inherit systemd
+SYSTEMD_PACKAGES = "${PN}"
+SYSTEMD_SERVICE:${PN} = "resize2fs.service"
+
+do_install() {
+    install -m 0644 ${UNPACKDIR}/firstboot ${D}${sysconfdir}/firstboot
+    install -m 0755 ${UNPACKDIR}/expandfs ${D}/usr/sbin/expandfs
+    install -D -p -m0644 ${UNPACKDIR}/resize2fs.service \
+      ${D}${systemd_unitdir}/system/resize2fs.service
+}
\ No newline at end of file
diff --git a/recipes-bsp/diya-resizefs/files/expandfs b/recipes-bsp/diya-resizefs/files/expandfs
new file mode 100644
index 0000000..351c523
--- /dev/null
+++ b/recipes-bsp/diya-resizefs/files/expandfs
@@ -0,0 +1,14 @@
+#! /bin/sh
+. /etc/profile
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+PARTNO=4
+if [ -z "$DISK" ]; then
+    DISK="mmcblk0"
+fi
+
+if [ "$(/usr/bin/id -u)" -ne 0 ]; then
+    echo "$0 shall be run as root"
+    exit 1
+fi
+yes | parted  ---pretend-input-tty  /dev/mmcblk0 resizepart ${PARTNO} 100%
+resize2fs /dev/${DISK}p${PARTNO}
\ No newline at end of file
diff --git a/recipes-bsp/diya-resizefs/files/firstboot b/recipes-bsp/diya-resizefs/files/firstboot
new file mode 100644
index 0000000..e69de29
diff --git a/recipes-bsp/diya-resizefs/files/resize2fs.service b/recipes-bsp/diya-resizefs/files/resize2fs.service
new file mode 100644
index 0000000..40f0a9a
--- /dev/null
+++ b/recipes-bsp/diya-resizefs/files/resize2fs.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Resize home partition
+ConditionPathExists=/etc/firstboot
+
+[Service]
+Type=oneshot
+ExecStart=/sbin/expandfs
+ExecStartPost=rm /etc/firstboot
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target
\ No newline at end of file