From 3458d7369246f83f26f802bf9d9827c67cf40f69 Mon Sep 17 00:00:00 2001
From: Sam Thursfield <sam.thursfield@codethink.co.uk>
Date: Tue, 29 Aug 2017 12:35:52 +0000
Subject: .gitlab-ci.yml: Avoid pulling artifacts for every BuildStream build

We shouldn't download artifacts to the CI workers every time somebody
pushes just to throw them away again. This should speed up no-op builds.

The functionality is implemented in two shell scripts. Context is here:
https://gitlab.com/BuildStream/buildstream/issues/77

It would be possible to do this with a single script, but I wanted to
avoid doing any argument parsing code in shell.
---
 scripts/bst-build-or-show       | 16 ++++++++++++++++
 scripts/bst-cross-build-or-show | 17 +++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100755 scripts/bst-build-or-show
 create mode 100755 scripts/bst-cross-build-or-show

(limited to 'scripts')

diff --git a/scripts/bst-build-or-show b/scripts/bst-build-or-show
new file mode 100755
index 00000000..7a8a8ecc
--- /dev/null
+++ b/scripts/bst-build-or-show
@@ -0,0 +1,16 @@
+#!/bin/bash
+# This script runs a BuildStream build for a given element, unless there
+# is a suitable artifact already in the remote cache in which case it just
+# runs `bst show`.
+#
+# It is intended for use by on-demand CI workers. If we just call `bst build`
+# and there is nothing to build then the CI worker will pull all of the remote
+# artifacts into a local cache, which will probably then be discarded anyway.
+
+set -eu
+bst_target="$1"
+if [ "$(bst show $bst_target --deps none --format '%{state}')" == 'cached' ]; then
+    bst --colors show $bst_target
+else
+    bst --colors build $bst_target
+fi
diff --git a/scripts/bst-cross-build-or-show b/scripts/bst-cross-build-or-show
new file mode 100755
index 00000000..3be2b482
--- /dev/null
+++ b/scripts/bst-cross-build-or-show
@@ -0,0 +1,17 @@
+#!/bin/bash
+# This script runs a BuildStream cross-build for a given element, unless there
+# is a suitable artifact already in the remote cache in which case it just
+# runs `bst show`.
+#
+# It is intended for use by on-demand CI workers. If we just call `bst build`
+# and there is nothing to build then the CI worker will pull all of the remote
+# artifacts into a local cache, which will probably then be discarded anyway.
+
+set -eu
+bst_target_arch="$1"
+bst_target="$2"
+if [ "$(bst --target-arch=$bst_target_arch show $bst_target --deps none --format '%{state}')" == 'cached' ]; then
+    bst --colors --target-arch="$bst_target_arch" show $bst_target
+else
+    bst --colors --target-arch="$bst_target_arch" build $bst_target
+fi
-- 
cgit v1.2.1