Added environment sanity checks for build.

Based on a discussion I and Stefan had today, better to check early on than
crash hours in to the build with vague information of the root-cause.

Added checks:
- Linus distro - must be Ubuntu
- Kernel version - must be 3.19 or later
- Docker network sanity check

Change-Id: Ie6758064ade4c58388368106d9bc556730d2bcec
Signed-off-by: Jonas Bjurel <jonas.bjurel@ericsson.com>

diff --git a/build/Makefile b/build/Makefile
index ab60f00..bc6a941 100644 (file)
--- a/build/Makefile
+++ b/build/Makefile
@@ -80,6 +80,12 @@ SUBCLEAN = $(addsuffix .clean,$(SUBDIRS))
 all:
        @docker version >/dev/null 2>&1 || (echo 'No Docker installation available'; exit 1)
        @make -C docker
+       @lsb_release -a | grep Ubuntu > /dev/null 2>&1 || (echo 'Ubuntu is the only supported Linux distribution for this build system'; exit 1)
+       @KERNEL_VER=$$(uname -r); \
+       KERNEL_VER="$${KERNEL_VER%.*-*}"; \
+       KERNEL_VER="$${KERNEL_VER//.}"; \
+        [ $$KERNEL_VER -ge 319 ] || (echo 'Kernel version must be 3.19 or newer'; exit 1)
+       @docker/runcontext $(DOCKERIMG) ping -c 1 www.google.com > /dev/null 2>&1 || (echo 'No docker network connectivity or name server - check your network- and docker settings'; exit 1)
        @docker/runcontext $(DOCKERIMG) $(MAKE) $(MAKEFLAGS) iso