[gnome-build-meta/tristan/gnome-boot: 9/9] .gitlab-ci.yml: Build the bootable x86_64 image in CI

[Tristan Van Berkom <tvb src gnome org>]

commit ad690726cd238ea2e997121060513428b5e6d8e8
Author: Tristan Van Berkom <tristan vanberkom codethink co uk>
Date:   Mon Jul 8 21:14:36 2019 +0900

    .gitlab-ci.yml: Build the bootable x86_64 image in CI
    
    This only builds for x86_64 and is appended to the build phase in
    order to save on artifact transfer traffic.
    
    Further, this last part of the build does not push the resulting
    5GB image to the artifact share, instead it will publish it in the
    gitlab artifact.

 .gitlab-ci.yml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3af1c08d..70406da0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,6 +5,7 @@ variables:
   GET_SOURCES_ATTEMPTS: 3
   BST_STRICT: '--no-strict'
   BST_TRACK_TAGS: 'False'
+  BST_NO_PUSH: "bst $BST_STRICT --log-file logs/build.log --colors"
   BST: "bst $BST_STRICT --config build.conf --log-file logs/build.log --colors"
   BST_SHA: '1.3.1-0-gb7a6624fbfbd82d2daa42f5a5570cbb4fbc729d2'
   BST_EXTERNAL_SHA: '0.14.0-0-g003f1f1e7ead60627ef4242a6d785704ede44358'
@@ -80,6 +81,23 @@ default:
   script:
     - ${BST} --max-jobs $(( $(nproc) / 4 )) -o arch "${ARCH}" build core.bst flatpak-runtimes.bst 
flatpak-platform-extensions.bst
       platform-manifest.bst sdk-manifest.bst
+    - |
+      # Only run this build for x86_64, instead of building it somewhere else
+      if [ "${ARCH}" == "x86_64" ]; then
+          #
+          # Don't try to push the resulting artifacts, the huge image doesnt
+          # work well with the artifact cache right now.
+          #
+          ${BST_NO_PUSH} --max-jobs $(( $(nproc) / 4 )) -o arch "${ARCH}" build 
vm/desktop-vm-image-x86_64.bst
+
+          # Checkout the image for the gitlab artifact.
+          #
+          # Accept using hardlinks here as the upload will not
+          # corrupt the local artifact cache.
+          #
+          ${BST} checkout --hardlinks vm/desktop-vm-image-x86_64.bst image
+      fi
+
   # Store all the downloaded git repos and tarballs in the cache.
   # This saves us fetching them on every build
   cache: &bst-cache
@@ -92,6 +110,7 @@ default:
     paths:
       - logs
       - project.refs
+      - image
 
 .flatpak-template:
   stage: flatpak