Merge lp:~joetalbott/charms/trusty/snappy-proposed-image-builder/add_udf_instructions into lp:~canonical-ci-engineering/charms/trusty/snappy-proposed-image-builder/trunk

[Joe Talbott]

Add instructions for building the CI version of ubuntu-device-flash.

Add instructions for building the CI version of ubuntu-device-flash.

[Celso Providelo (cprov)]

Thanks, Joe.

review: Approve

=== modified file 'README'
--- README	2015-05-27 13:56:25 +0000
+++ README	2015-06-03 18:53:31 +0000
@@ -14,3 +14,28 @@
 The charm expects the payload code to be provided as 
 files/snappy-proposed-image-builder.tgz (a snapshot of lp:snappy-proposed-image-builder) along
 with its corresponding files/pip-cache directory (python dependencies). 
+
+The charm expects a ubuntu-device-flash binary as well
+
+ubuntu-device-flash
+-------------------
+
+Download ubuntu-device-flash source
+
+  bzr branch lp:~canonical-ci-engineering/goget-ubuntu-touch/local_image goget-ubuntu-touch
+
+Build the CI version of ubuntu-device-flash
+
+  cd goget-ubuntu-touch/ubuntu-device-flash 
+
+  # install the following packages
+  # ubuntu-snappy-cli from ppa:snappy-dev/tools
+  # kpartx
+  # debsig-verify
+  # golang
+
+  export GOPATH=~/.go
+  mkdir $GOPATH
+
+  golang-go get
+  golang-go build