🔧 Add a script to warn about Container fixture regen

package.json

@@ -9,13 +9,14 @@
     "check": "yarn check:lint && yarn check:yarnlock",
     "check:lint": "tslint -c tslint.json '**/src/**/*.ts' '**/test/**/*.ts' -e '**/node_modules/**'",
     "check:yarnlock": "node yarn-lock-check",
+    "check:regen-fixtures": "node regen-fixtures-check",
     "coverage:ci": "yarn coverage:unit && yarn coverage:system && yarn istanbul report --include=**/.coverage/coverage-final.json text-lcov | yarn coveralls",
     "coverage:system": "rimraf .nyc_output && node system-tests/system-tests-coverage",
     "coverage:unit": "rimraf ern-*/.nyc_output && lerna run coverage && yarn istanbul report --include=ern-*/.coverage/coverage-final.json html",
     "ern-debug": "node --nolazy --inspect-brk=5858 ern-local-cli/src/index.dev.js",
     "istanbul": "istanbul",
     "postmerge": "node auto-rebuild.js",
-    "precommit": "yarn check:yarnlock && yarn check:lint && yarn prettier",
+    "precommit": "yarn check:yarnlock && yarn check:lint && yarn prettier && yarn check:regen-fixtures",
     "prettier": "pretty-quick --staged",
     "rebuild": "lerna clean --yes && lerna bootstrap && lerna run build",
     "regen-fixtures": "node system-tests/regen-fixtures",

regen-fixtures-check.js

@@ -0,0 +1,23 @@
+const chalk = require('chalk')
+
+var execSync = require('child_process').execSync
+
+var stdout = execSync(
+  'git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD'
+)
+
+const yellow = str => console.log(chalk.yellow(str))
+const green = str => console.log(chalk.green(str))
+
+for (const platform of ['android', 'ios']) {
+  const containerGenModule = `ern-container-gen-${platform}`
+  if (stdout && stdout.includes(containerGenModule)) {
+    yellow('!===========================================================!')
+    yellow(`Changes detected in ${containerGenModule}.`)
+    yellow('If the changes are impacting Container generated content,')
+    yellow(`dont forget to regenerate ${platform} Container fixture.`)
+    yellow(`In doubt ? Just regenerate the fixture :)`)
+    green(`$ yarn regen-fixtures`)
+    yellow('!===========================================================!')
+  }
+}