From 352cd819bd1ef367dc3a33d62b05b9e1d8bd4a61 Mon Sep 17 00:00:00 2001
From: Hugo Villeneuve <hugo@hugovil.com>
Date: Tue, 29 Oct 2024 11:46:47 -0400
Subject: [PATCH] Add hvutils

---
 recipes-support/hvutils/files/hvutils.sh | 99 ++++++++++++++++++++++++
 recipes-support/hvutils/hvutils.bb       | 18 +++++
 2 files changed, 117 insertions(+)
 create mode 100644 recipes-support/hvutils/files/hvutils.sh
 create mode 100644 recipes-support/hvutils/hvutils.bb

diff --git a/recipes-support/hvutils/files/hvutils.sh b/recipes-support/hvutils/files/hvutils.sh
new file mode 100644
index 0000000..019dcb5
--- /dev/null
+++ b/recipes-support/hvutils/files/hvutils.sh
@@ -0,0 +1,99 @@
+#!/bin/sh
+
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2023 Hugo Villeneuve <hugo@hugovil.com>
+
+COLOR_ERR="\033[0;31m"
+COLOR_WARN="\033[0;33m"
+COLOR_NONE="\033[0m"
+
+# When using /bin/sh, echo needs to be prefixed with its path to avoid
+# printing "-e".
+ECHO="/bin/echo -e"
+
+if [ "${debug}" = "" ]; then
+    # Set default value, debug disabled.
+    # Define to 1 to display debug messages.
+    debug=0
+fi
+
+log_info() {
+    ${ECHO} "${COLOR_NONE}${*}"
+}
+
+log_dbg() {
+    if [ ${debug} -eq 1 ]; then
+        ${ECHO} "${*}"
+    fi
+}
+
+log_warn() {
+    ${ECHO} >&2 "${COLOR_WARN}${*}${COLOR_NONE}"
+}
+
+log_err() {
+    ${ECHO} >&2 "${COLOR_ERR}${*}${COLOR_NONE}"
+}
+
+lcd() {
+    printf "$@" > /dev/lcd
+}
+
+lcd_clear() {
+    lcd '\f'
+}
+
+lcd_init() {
+    # Cursor off
+    lcd "\x1b[Lc"
+    lcd_clear
+}
+
+# Input variables:
+#   l1 to l4
+#   l1p to l4p
+lcd_update() {
+
+    # TODO: scroll long lines...
+
+    if [ "${l1}" != "${l1p}" -o \
+         "${l2}" != "${l2p}" -o \
+         "${l3}" != "${l3p}" -o \
+         "${l4}" != "${l4p}" ]; then
+        lcd_clear
+
+        log_dbg "lcd_update()"
+        log_dbg "  l1=$l1"
+        log_dbg "  l2=$l2"
+        log_dbg "  l3=$l3"
+        log_dbg "  l4=$l4"
+
+        # Make sure strings are at least 20 characters long:
+        l1f="${l1}${fill}"
+        l2f="${l2}${fill}"
+        l3f="${l3}${fill}"
+        l4f="${l4}${fill}"
+
+        l1t="$(printf "%.20s\n" "${l1f}")"
+        l2t="$(printf "%.20s\n" "${l2f}")"
+        # Bug, écran défectueux ligne 3...
+        l3t=""
+        l4t="$(printf "%.20s\n" "${l4f}")"
+
+        # TODO: remove trailing whitespace
+
+        l13="${l1t}${l3t}"
+        l24="${l2t}${l4t}"
+
+        log_dbg "  l13=$l13"
+        log_dbg "  l24=$l24"
+
+        lcd "${l13}\n"
+        lcd "${l24}\n"
+
+        l1p="${l1}"
+        l2p="${l2}"
+        l3p="${l3}"
+        l4p="${l4}"
+    fi
+}
diff --git a/recipes-support/hvutils/hvutils.bb b/recipes-support/hvutils/hvutils.bb
new file mode 100644
index 0000000..754c7a0
--- /dev/null
+++ b/recipes-support/hvutils/hvutils.bb
@@ -0,0 +1,18 @@
+DESCRIPTION = "HV utils scripts"
+
+LICENSE = "GPL-2.0-only"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0-only;md5=801f80980d171dd6425610833a22dbe6"
+
+PV = "0.0.1"
+
+SRC_URI += "file://hvutils.sh"
+
+RDEPENDS:${PN} +="bash"
+
+do_install () {
+    # Common header shell script:
+    install -d ${D}${bindir}
+    install -m 0644 ${WORKDIR}/hvutils.sh ${D}${bindir}/
+}
+
+FILES:${PN} += "${bindir}/hvutils.sh"
-- 
2.20.1