From 5249ec11a5a8034404ebf47fbc8fca4774b7d117 Mon Sep 17 00:00:00 2001
From: Misty Stanley-Jones <misty@apache.org>
Date: Mon, 6 Mar 2017 15:18:18 -0800
Subject: [PATCH] Trigger build of docs-base after successful build of archive
 branch

---
 .dockerignore   |  2 ++
 Dockerfile      |  8 --------
 hooks/post_push | 14 ++++++++++++++
 3 files changed, 16 insertions(+), 8 deletions(-)
 create mode 100644 .dockerignore
 create mode 100755 hooks/post_push

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000000..a244c17ae6
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+.git
+_site
diff --git a/Dockerfile b/Dockerfile
index 3d807d67e6..f1f697a9ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,3 @@
 FROM starefossen/github-pages:onbuild
 
-ONBUILD RUN git clone https://www.github.com/docker/docker.github.io docs
-
-ONBUILD WORKDIR docs
-
-ONBUILD RUN git checkout v1.5
-
-ONBUILD COPY . /usr/src/app
-
 CMD jekyll serve -d /_site --watch -H 0.0.0.0 -P 4000
diff --git a/hooks/post_push b/hooks/post_push
new file mode 100755
index 0000000000..e258f1c0ea
--- /dev/null
+++ b/hooks/post_push
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -e
+
+# If this is an archive branch (like v1.4 or v1.11),
+# build and push the docs-base branch at the end of
+# a successful build of the branch
+
+if [[ $SOURCE_BRANCH =~ ^v1\.[0-9]+$ ]]; then
+  git fetch origin docs-base:docs-base --depth 1 || ( echo "Couldn't fetch docs-base." && exit 1 )
+  git checkout docs-base || ( echo "Couldn't check out docs-base." && exit 1 )
+  docker build -t docs/docker.github.io:docs-base . || ( echo "Couldn't build docs-base Dockerfile." && exit 1 )
+  docker push docs/docker.github.io:docs-base || ( echo "Coudn't push new docs-base image." && exit 1 )
+fi