Rename .jenkins to a more generic .ci

.ci/Jenkinsfile

@@ -0,0 +1,67 @@
+/*
+ * 86Box	A hypervisor and IBM PC system emulator that specializes in
+ *		running old operating systems and software designed for IBM
+ *		PC systems and compatibles from 1981 through fairly recent
+ *		system designs based on the PCI bus.
+ *
+ *		This file is part of the 86Box distribution.
+ *
+ *		Jenkins build pipeline definition.
+ *
+ *
+ *
+ * Authors:	RichardG, <richardg867@gmail.com>
+ *
+ *		Copyright 2021 RichardG.
+ */
+
+def gitClone() {
+	cleanWs()
+	def scmVars = git url: 'https://github.com/richardg867/86Box.git',
+					  branch: 'cleanup30'
+	env.GIT_COMMIT = scmVars.GIT_COMMIT
+}
+
+def windowsBuild() {
+	bat 'C:\\msys64\\msys2_shell.cmd -msys2 -defterm -here -no-start -c "exec .ci/build.sh"'
+}
+
+def unixBuild() {
+	sh 'chmod u+x .ci/build.sh && .ci/build.sh'
+}
+
+def saveArtifacts() {
+	archiveArtifacts artifacts: "${env.JOB_BASE_NAME}-*"
+}
+
+pipeline {
+	agent any
+
+	parameters {
+		choice(name: 'BUILD_TYPE',
+		       choices: ['beta', 'none', 'alpha', 'beta', 'release'], // duplicated on purpose, first is default
+		       description: 'Build type to pass on to CMake. This may affect the UI icon and feature set.')
+	}
+
+	stages {
+		stage('Build Windows') {
+			steps {
+				node('windows') {
+					gitClone()
+					windowsBuild()
+					saveArtifacts()
+				}
+			}
+		}
+
+		stage('Build Linux') {
+			steps {
+				node('debian') {
+					gitClone()
+					unixBuild()
+					saveArtifacts()
+				}
+			}
+		}
+	}
+}