Add Renovate to automate dev dependencies upgrades

Author: thibaudcolas

.editorconfig

@@ -10,5 +10,5 @@ insert_final_newline = true
 [*.md]
 trim_trailing_whitespace = false
 
-[*.{yaml,yml,json,md,toml}]
+[*.{yaml,yml,json,json5,md,toml}]
 indent_size = 2

.githooks/pre-commit

@@ -13,8 +13,8 @@ FULLY_STAGED=$(comm -23 <(echo "$STAGED") <(echo "$PATCH_STAGED"))
 JS_STAGED=$(grep -E '.(js|jsx)$' <<< "$STAGED" || true)
 CSS_STAGED=$(grep -E '.(css|scss)$' <<< "$STAGED" || true)
 SNAPSHOT_STAGED=$(grep -E '.snap$' <<< "$STAGED" || true)
-PRETTIER_STAGED=$(grep -E '.(md|css|scss|js|json|yaml|yml|html)$' <<< "$STAGED" || true)
-PRETTIER_FULLY_STAGED=$(grep -E '.(md|css|scss|js|json|yaml|yml|html)$' <<< "$FULLY_STAGED" || true)
+PRETTIER_STAGED=$(grep -E '.(md|css|scss|js|json|json5|yaml|yml|html)$' <<< "$STAGED" || true)
+PRETTIER_FULLY_STAGED=$(grep -E '.(md|css|scss|js|json|json5|yaml|yml|html)$' <<< "$FULLY_STAGED" || true)
 
 # Uncomment, and add more variables to the list, for debugging help.
 # tr ' ' '\n' <<< "STAGED $STAGED PATCH_STAGED $PATCH_STAGED FULLY_STAGED $FULLY_STAGED JS_STAGED $JS_STAGED

renovate.json5

@@ -0,0 +1,48 @@
+{
+  extends: ['config:base'],
+  // https://renovatebot.com/docs/configuration-options/#commitbodytable
+  commitBodyTable: true,
+  // https://renovatebot.com/docs/configuration-options/#ignoredeps
+  ignoreDeps: [
+    // Ignore all package dependencies, we only want these updated in batches as part of new releases.
+    'stylelint',
+    'stylelint-a11y',
+    'stylelint-config-prettier',
+    'stylelint-config-standard',
+    'stylelint-declaration-strict-value',
+    'stylelint-order',
+    'stylelint-scss',
+  ],
+  // https://renovatebot.com/docs/configuration-options/#labels
+  labels: ['enhancement'],
+  // https://renovatebot.com/docs/configuration-options/#prcreation
+  prCreation: 'not-pending',
+  // Use shorter commit messages to account for long dependency names.
+  // https://docs.renovatebot.com/configuration-options/#commitmessagetopic
+  commitMessageTopic: '{{depName}}',
+  // https://renovatebot.com/docs/configuration-options/#prbodycolumns
+  prBodyColumns: ['Package', 'Update', 'Type', 'Change'],
+  // https://renovatebot.com/docs/configuration-options/#rebasestaleprs
+  rebaseStalePrs: true,
+  // Silently merge updates without PRs
+  automergeType: 'branch',
+  // Limit the number of consecutive PRs
+  prHourlyLimit: 2,
+  node: {
+    major: {
+      enabled: true,
+    },
+    // https://renovatebot.com/docs/node/#configuring-support-policy
+    supportPolicy: ['current'],
+  },
+  packageRules: [
+    { packageNames: ['prettier'], groupName: 'prettier', automerge: true },
+    { packageNames: ['jest'], groupName: 'jest', automerge: true },
+    { packageNames: ['eslint'], groupName: 'eslint', automerge: true },
+    {
+      packageNames: ['stylelint-find-new-rules'],
+      groupName: 'stylelint-find-new-rules',
+      automerge: true,
+    },
+  ],
+}