add snapcraft.yaml for Linux packages of fluxctl

	closes #1377

Signed-off-by: Daniel Holbach <[email protected]>

.gitignore

@@ -27,6 +27,14 @@ _testmain.go
 .ackrc
 .envrc
 
+### Package builds (e.g. snap of fluxctl)
+fluxctl_*_*.snap
+parts
+snap
+prime
+stage
+
+
 # Specific to this project
 vendor/*
 !vendor/manifest

snapcraft.yaml

@@ -0,0 +1,39 @@
+name: fluxctl
+version-script: |
+  FLUX_TAG="$(git tag -l | egrep -v '^(chart-|helm-|master-|pre-split)' | sort -n | tail -n1)"
+  if [ "$SNAPCRAFT_PROJECT_GRADE" = "stable" ]
+  then
+    echo $FLUX_TAG
+  else
+    GIT_REV="$(git rev-parse --short HEAD)"
+    echo "$FLUX_TAG+$GIT_REV"
+  fi
+version: git
+summary: fluxctl talks to Weave Flux and helps you deploy your code
+description: |
+  fluxctl talks to your Weave Flux instance and exposes all its
+  functionality to an easy to use command line interface.
+grade: devel # must be 'stable' to release into candidate/stable channels
+confinement: classic
+base: core18
+
+parts:
+  fluxctl:
+    source: .
+    plugin: go
+    go-importpath: github.com/weaveworks/flux
+    override-pull: |
+      snapcraftctl pull
+      export GOPATH=$(dirname $SNAPCRAFT_PART_INSTALL)/go
+      export PATH=$GOPATH/bin:$PATH
+      cd $GOPATH/src/github.com/weaveworks/flux
+      dep ensure
+    build-packages:
+      - gcc
+      - go-dep
+    prime:
+      - bin/fluxctl
+
+apps:
+  fluxctl:
+    command: bin/fluxctl