Add start-container.sh script

This will make it easier to manually create a container for development
and debugging.

podman-build.sh

@@ -3,23 +3,7 @@
 
 set -e
 
-. ./config
-
-cid=$(podman run \
-    --tmpfs /var/tmp \
-    --tmpfs /usr/${target}/tmp \
-    -v portage:/var/db/repos/gentoo \
-    -v packages:/var/cache/binpkgs \
-    -v distfiles:/var/cache/distfiles \
-    -v packages:/usr/${target}/var/cache/binpkgs \
-    -v /mnt/gentoo \
-    -v ${PWD}:/tmp/build:rw,z \
-    -w /tmp/build \
-    -d \
-    -e FEATURES='-ipc-sandbox -network-sandbox -pid-sandbox' \
-    cross-${target} \
-    python -c 'from signal import *;signal(SIGTERM, lambda x, y: None);pause()'
-)
+cid=$(./start-container.sh)
 
 ./patch-uboot.sh
 

start-container.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+# vim: set sw=4 ts=4 sts=4 et :
+
+set -e
+
+. ./config
+
+podman run \
+    --tmpfs /var/tmp \
+    --tmpfs /usr/${target}/tmp \
+    -v portage:/var/db/repos/gentoo \
+    -v packages:/var/cache/binpkgs \
+    -v distfiles:/var/cache/distfiles \
+    -v packages:/usr/${target}/var/cache/binpkgs \
+    -v /mnt/gentoo \
+    -v ${PWD}:/tmp/build:rw,z \
+    -w /tmp/build \
+    -d \
+    -e FEATURES='-ipc-sandbox -network-sandbox -pid-sandbox' \
+    cross-${target} \
+    python -c 'from signal import *;signal(SIGTERM, lambda x, y: None);pause()'