Support build as user (#405)

* Support build as user

* Update enter.sh

* Update Dockerfile

* Update enter.sh

* Update entry.sh

Dockerfile

@@ -18,7 +18,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 # Build Tools
 RUN apt-get update && apt-get install -y --no-install-recommends \
-        wget patch vim cpio python unzip rsync bc bzip2 ncurses-dev \
+        wget patch vim cpio python unzip rsync bc bzip2 ncurses-dev sudo \
         git make g++ file perl bash binutils locales qemu-utils bison flex \
     && rm -rf /var/lib/apt/lists/*
 

scripts/enter.sh

@@ -2,4 +2,7 @@
 modprobe overlayfs
 
 docker build -t hassbuildroot .
-docker run -it --rm --privileged -v "$(pwd):/build" -v "${CACHE_DIR:=$HOME/hassos-cache}:/cache" hassbuildroot bash
+docker run -it --rm --privileged \
+  -v "$(pwd):/build" -v "${CACHE_DIR:=$HOME/hassos-cache}:/cache" \
+  -e BUILDER_UID="$(id -u)" -e BUILDER_GID="$(id -g)" \
+  hassbuildroot bash

scripts/entry.sh

@@ -1,12 +1,21 @@
 #!/bin/bash
 set -e
 
+USER="root"
+
 # Run dockerd
 dockerd -s vfs &> /dev/null &
 
+# Setup local user
+if [ "${BUILDER_UID:0}" -ne 0 ] && [ "${BUILDER_GID:0}" -ne 0 ]; then
+  groupadd -g "${BUILDER_GID}" builder
+  useradd -m -u "${BUILDER_UID}" -g "${BUILDER_GID}" -G docker builder
+  USER="builder"
+fi
+
 if CMD="$(command -v "$1")"; then
   shift
-  exec "$CMD" "$@"
+  sudo -H -u ${USER} "$CMD" "$@"
 else
   echo "Command not found: $1"
   exit 1