fix(ci): don't run percy for some no-op PRs

Reduce percy snapshot usage by ignoring some PRs that update Go or NodeJS deps

.travis.yml

@@ -144,7 +144,9 @@ jobs:
       env:
         - NODE_ENV=test
         - secure: "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"
-      script: make test-percy
+      script:
+        - git fetch origin master
+        - scripts/percy-skip-deps.sh FETCH_HEAD $TRAVIS_COMMIT || make test-percy
 
     - stage: Build and Deploy
       name: Cross compile binaries

scripts/percy-skip-deps.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -o errexit
+set -o pipefail
+
+
+git log --no-merges --name-only --pretty=format: ${1}..${2} | grep -Ev '^$' | sort | uniq | while read FILE ; do
+  if [[ "${FILE}" =~ ^ui/src/.+ ]]; then
+    echo "[P] ${FILE}"
+    exit 1
+  else
+    echo "[ ] ${FILE}"
+  fi
+done
+
+exit 0