Add script to install locale (home-assistant#25791)

Dockerfile

@@ -13,6 +13,7 @@ LABEL maintainer="Paulus Schoutsen <Paulus@PaulusSchoutsen.nl>"
 #ENV INSTALL_SSOCR no
 #ENV INSTALL_DLIB no
 #ENV INSTALL_IPERF3 no
+#ENV INSTALL_LOCALES no
 
 VOLUME /config
 

virtualization/Docker/Dockerfile.dev

@@ -14,6 +14,7 @@ LABEL maintainer="Paulus Schoutsen <Paulus@PaulusSchoutsen.nl>"
 #ENV INSTALL_SSOCR no
 #ENV INSTALL_DLIB no
 #ENV INSTALL_IPERF3 no
+#ENV INSTALL_LOCALES no
 
 VOLUME /config
 

virtualization/Docker/scripts/locales

@@ -0,0 +1,12 @@
+#!/bin/bash
+# Sets up locales.
+
+# Stop on errors
+set -e
+
+apt-get update
+apt-get install -y --no-install-recommends locales
+
+# Set the locale
+sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen
+locale-gen

virtualization/Docker/setup_docker_prereqs

@@ -9,6 +9,7 @@ INSTALL_OPENALPR="${INSTALL_OPENALPR:-yes}"
 INSTALL_LIBCEC="${INSTALL_LIBCEC:-yes}"
 INSTALL_SSOCR="${INSTALL_SSOCR:-yes}"
 INSTALL_DLIB="${INSTALL_DLIB:-yes}"
+INSTALL_LOCALES="${INSTALL_LOCALES:-yes}"
 
 # Required debian packages for running hass or components
 PACKAGES=(
@@ -70,6 +71,10 @@ if [ "$INSTALL_DLIB" == "yes" ]; then
   pip3 install --no-cache-dir "dlib>=19.5"
 fi
 
+if [ "$INSTALL_LOCALES" == "yes" ]; then
+  virtualization/Docker/scripts/locales
+fi
+
 # Remove packages
 apt-get remove -y --purge ${PACKAGES_DEV[@]}
 apt-get -y --purge autoremove