Travis CI: Add .travis.yml back again

.travis.yml

@@ -0,0 +1,34 @@
+language: node_js
+  - 12
+
+stages:
+  - name: test
+  - name: build-prerelease
+    if: branch = "master"
+  - name: build-tiddlywiki-com
+    if: branch = "tiddlywiki-com"
+
+jobs:  
+  include:
+    - stage: test
+      script: ./bin/test.sh
+    - stage: build-prerelease
+      script:
+        - ./bin/travis-pre-build.sh
+        - export TW5_BUILD_TIDDLYWIKI='./tiddlywiki.js'
+        - export TW5_BUILD_VERSION=$(./bin/get-plugin-library-version-number)
+        - export TW5_BUILD_DETAILS="Prerelease built from branch '$TRAVIS_BRANCH' at commit $(git rev-parse HEAD) of $(git remote get-url origin) at $(date +'%F %T %Z')"
+        - export TW5_BUILD_MAIN_EDITION='./editions/prerelease'
+        - export TW5_BUILD_OUTPUT='./output/prerelease'
+        - ./bin/build-site.sh || travis_terminate 1
+        - ./bin/travis-push.sh || travis_terminate 1
+    - stage: build-tiddlywiki-com
+      script:
+        - ./bin/travis-pre-build.sh
+        - export TW5_BUILD_TIDDLYWIKI='./node_modules/tiddlywiki/tiddlywiki.js'
+        - export TW5_BUILD_VERSION=$(./bin/get-plugin-library-version-number)
+        - export TW5_BUILD_DETAILS="Built from branch '$TRAVIS_BRANCH' at commit $(git rev-parse HEAD) of $(git remote get-url origin) at $(date +'%F %T %Z')"
+        - export TW5_BUILD_MAIN_EDITION='./editions/tw5.com'
+        - export TW5_BUILD_OUTPUT='./output'
+        - ./bin/build-site.sh || travis_terminate 1
+        - ./bin/travis-push.sh || travis_terminate 1