Jenkins: initial support for shared build libraries

Instead of writing the same code over and over again, place the common parts
into a Jenkins Library which is then consumed by every individual build Job.

This not only makes it less complex, but also increases maintainability by
several magnitudes.

1 files changed, 26 insertions, 0 deletions

diff --git a/vars/isCustomBuild.groovy b/vars/isCustomBuild.groovy
new file mode 100644
index 00000000..301fdd42
--- /dev/null
+++ b/vars/isCustomBuild.groovy
@@ -0,0 +1,26 @@
+#!/usr/bin/env groovy
+// Copyright (C) 2020 VyOS maintainers and contributors
+//
+// This program is free software; you can redistribute it and/or modify
+// in order to easy exprort images built to "external" world
+// it under the terms of the GNU General Public License version 2 or later as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+def call() {
+    // Returns true if this is a custom build launched on any project fork.
+    // Returns false if this is build from git@github.com:vyos/<reponame>.
+    // <reponame> can be e.g. vyos-1x.git or vyatta-op.git
+    // GitHub organisation base URL
+    def gitURI = 'git@github.com:vyos/' + getGitRepoName()
+    def httpURI = 'https://github.com/vyos/' + getGitRepoName()
+
+    return !((getGitRepoURL() == gitURI) || (getGitRepoURL() == httpURI)) || env.CHANGE_ID
+}