add 'run in testbed' shortcut shell script:

- to avoid long, hard-to-read tasks in the circle.yml

Author: etpinard

circle.yml

@@ -16,12 +16,12 @@ dependencies:
   post:
     - npm run cibuild
     - docker run -d --name mytestbed -v $PWD:/var/www/streambed/image_server/plotly.js -p 9010:9010 plotly/testbed:latest
-    - sudo lxc-attach -n "$(docker inspect --format '{{.Id}}' mytestbed)" -- bash -c "cp -f /var/www/streambed/image_server/plotly.js/test/image/index.html /var/www/streambed/image_server/server_app/index.html"
+    - sudo ./tasks/run_in_testbed.sh mytestbed "cp -f test/image/index.html ../server_app/index.html"
     - wget --server-response --spider --tries=8 --retry-connrefused http://localhost:9010/ping
 test:
   override:
-    - sudo lxc-attach -n "$(docker inspect --format '{{.Id}}' mytestbed)" -- bash -c "cd /var/www/streambed/image_server/plotly.js && node test/image/compare_pixels_test.js"
-    - sudo lxc-attach -n "$(docker inspect --format '{{.Id}}' mytestbed)" -- bash -c "cd /var/www/streambed/image_server/plotly.js && node test/image/export_test.js"
+    - sudo ./tasks/run_in_testbed.sh mytestbed "node test/image/compare_pixels_test.js"
+    - sudo ./tasks/run_in_testbed.sh mytestbed "node test/image/export_test.js"
     - npm run citest-jasmine
     - npm run test-bundle
     - npm run test-syntax

tasks/run_in_testbed.sh

@@ -0,0 +1,14 @@
+#! /bin/bash
+#
+# Useful shortcut to run command inside the `testbed` docker container
+# on CircleCI.
+#
+# ===============================================================================
+
+ID="$1"
+CMD="$2"
+
+CONTAINER="$(docker inspect --format '{{.Id}}' $ID)"
+REPOPATH="/var/www/streambed/image_server/plotly.js"
+
+lxc-attach -n $CONTAINER -- bash -c "cd $REPOPATH && $CMD"