Fail tests if CIRCLE_NODE_TOTAL is < 4 (#2084)

palantir · Jan 21, 2017 · 8fbcf3e · 8fbcf3e
1 parent d651145
commit 8fbcf3e
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diff --git a/circle.yml b/circle.yml
@@ -4,6 +4,7 @@ general:
       - gh-pages
 dependencies:
   pre:
+    - node ./scripts/assertMinCircleNodes.js $CIRCLE_NODE_TOTAL
     - case $CIRCLE_NODE_INDEX in 0) nvm use 4.2 ;; 1) nvm use 5.7 ;; [2-3]) nvm use 6.1 ;; esac
 test:
   override:

diff --git a/scripts/assertMinCircleNodes.js b/scripts/assertMinCircleNodes.js
@@ -0,0 +1,8 @@
+var requiredNodes = 4;
+var nodes = parseInt(process.argv[2], 10);
+if (requiredNodes != null && requiredNodes > nodes) {
+    console.error("ERROR: You must run CircleCI with 4 parallel nodes");
+    console.error("    This ensures that different environments are tested for TSLint compatibility");
+    console.error("    https://circleci.com/gh/<YOUR ACCOUNT>/tslint/edit#parallel-builds");
+    process.exit(1);
+}