feat: support Gatsby 3.x (#36)

BREAKING CHANGE: Requires Node@>=12.13.x
BREAKING CHANGE: Requires Gatsby@^3.x

.github/workflows/validate.yml

@@ -16,7 +16,7 @@ jobs:
     if: ${{ !contains(github.head_ref, 'all-contributors') }}
     strategy:
       matrix:
-        node: [10.13, 10, 12, 14]
+        node: [12.13, 12, 14, 15]
     runs-on: ubuntu-latest
     steps:
       - name: 🛑 Cancel Previous Runs

package.json

@@ -36,14 +36,14 @@
     "@babel/runtime": "^7.13.10"
   },
   "devDependencies": {
-    "gatsby-plugin-utils": "^0.9.0",
+    "gatsby-plugin-utils": "^1.2.0",
     "kcd-scripts": "^9.0.0"
   },
   "peerDependencies": {
-    "gatsby": "^2.20.0"
+    "gatsby": "^3.0.0"
   },
   "engines": {
-    "node": ">=10.13.0",
+    "node": ">=12.13.0",
     "npm": ">=6"
   }
 }

src/gatsby-node.js

@@ -1,37 +1,26 @@
-if (process.env.GATSBY_EXPERIMENTAL_PLUGIN_OPTION_VALIDATION) {
-  const getDeprecatedOptions = ({ Joi }) =>
-    ["round", "tall"].reduce(
-      (allOptions, option) => ({
-        ...allOptions,
-        [option]: Joi.boolean()
-          .forbidden()
-          .messages({
-            "any.unknown": `'${option}' is no longer supported. Use 'saveButton.${option}' instead by setting it to the same value you had before on '${option}'.`,
-          }),
-      }),
-      {},
-    );
+const getDeprecatedOptions = ({ Joi }) =>
+  ["round", "tall"].reduce(
+    (allOptions, option) => ({
+      ...allOptions,
+      [option]: Joi.boolean()
+        .forbidden()
+        .messages({
+          "any.unknown": `'${option}' is no longer supported. Use 'saveButton.${option}' instead by setting it to the same value you had before on '${option}'.`,
+        }),
+    }),
+    {},
+  );
 
-  exports.pluginOptionsSchema = ({ Joi }) =>
-    Joi.object({
-      ...getDeprecatedOptions({ Joi }),
-      saveButton: Joi.alternatives()
-        .try(
-          Joi.boolean(),
-          Joi.object({
-            round: Joi.boolean().default(false),
-            tall: Joi.boolean().default(true),
-          }),
-        )
-        .default(false),
-    });
-} else {
-  const deprecationWarning = `[gatsby-plugin-pinterest] From now on, you should use the 'saveButton' option to show Pinterest's save button on images.
-See https://github.com/robinmetral/gatsby-plugin-pinterest#usage`;
-
-  exports.onPreInit = ({ reporter }, { round, tall } = {}) => {
-    if (round || tall) {
-      reporter.warn(deprecationWarning);
-    }
-  };
-}
+exports.pluginOptionsSchema = ({ Joi }) =>
+  Joi.object({
+    ...getDeprecatedOptions({ Joi }),
+    saveButton: Joi.alternatives()
+      .try(
+        Joi.boolean(),
+        Joi.object({
+          round: Joi.boolean().default(false),
+          tall: Joi.boolean().default(true),
+        }),
+      )
+      .default(false),
+  });