From b78bff5de834d93e81d8af248cc35afbfe69208a Mon Sep 17 00:00:00 2001
From: Daryl Chan <dckj95@gmail.com>
Date: Sun, 15 Mar 2020 18:46:13 +0800
Subject: [PATCH] chore(gatsby): Migrate eslint-config to TypeScript

---
 package.json                                   |  1 +
 .../{eslint-config.js => eslint-config.ts}     |  5 +++--
 yarn.lock                                      | 18 ++++++++++++++++++
 3 files changed, 22 insertions(+), 2 deletions(-)
 rename packages/gatsby/src/utils/{eslint-config.js => eslint-config.ts} (94%)

diff --git a/package.json b/package.json
index 4244639e2567d..2f43d4fa5e7bf 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "@types/babel__code-frame": "^7.0.1",
     "@types/bluebird": "^3.5.29",
     "@types/cache-manager": "^2.10.2",
+    "@types/eslint": "^6.1.8",
     "@types/express": "^4.17.2",
     "@types/fs-extra": "^8.0.1",
     "@types/got": "^9.6.9",
diff --git a/packages/gatsby/src/utils/eslint-config.js b/packages/gatsby/src/utils/eslint-config.ts
similarity index 94%
rename from packages/gatsby/src/utils/eslint-config.js
rename to packages/gatsby/src/utils/eslint-config.ts
index bd2bcb2f524f8..28d4058a24c10 100644
--- a/packages/gatsby/src/utils/eslint-config.js
+++ b/packages/gatsby/src/utils/eslint-config.ts
@@ -1,6 +1,7 @@
-import { printSchema } from "graphql"
+import { printSchema, GraphQLSchema } from "graphql"
+import { CLIEngine } from "eslint"
 
-module.exports = schema => {
+module.exports = (schema: GraphQLSchema): CLIEngine.Options => {
   return {
     useEslintrc: false,
     resolvePluginsRelativeTo: __dirname,
diff --git a/yarn.lock b/yarn.lock
index a80788153f571..10d9ff16ba792 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3865,6 +3865,19 @@
   resolved "https://registry.yarnpkg.com/@types/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#1ee30d79544ca84d68d4b3cdb0af4f205663dd2d"
   integrity sha512-OCutwjDZ4aFS6PB1UZ988C4YgwlBHJd6wCeQqaLdmadZ/7e+w79+hbMUFC1QXDNCmdyoRfAFdm0RypzwR+Qpag==
 
+"@types/eslint@^6.1.8":
+  version "6.1.8"
+  resolved "https://registry.yarnpkg.com/@types/eslint/-/eslint-6.1.8.tgz#7e868f89bc1e520323d405940e49cb912ede5bba"
+  integrity sha512-CJBhm9pYdUS8cFVbXACWlLxZWFBTQMiM0eI6RYxng3u9oQ9gHdQ5PN89DHPrK4RISRzX62nRsteUlbBgEIdSug==
+  dependencies:
+    "@types/estree" "*"
+    "@types/json-schema" "*"
+
+"@types/estree@*":
+  version "0.0.42"
+  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.42.tgz#8d0c1f480339efedb3e46070e22dd63e0430dd11"
+  integrity sha512-K1DPVvnBCPxzD+G51/cxVIoc2X8uUVl1zpJeE6iKcgHMj4+tbat5Xu4TjV7v2QSDbIeAfLi2hIk+u2+s0MlpUQ==
+
 "@types/estree@0.0.39":
   version "0.0.39"
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
@@ -3962,6 +3975,11 @@
   resolved "https://registry.yarnpkg.com/@types/joi/-/joi-14.3.4.tgz#eed1e14cbb07716079c814138831a520a725a1e0"
   integrity sha512-1TQNDJvIKlgYXGNIABfgFp9y0FziDpuGrd799Q5RcnsDu+krD+eeW/0Fs5PHARvWWFelOhIG2OPCo6KbadBM4A==
 
+"@types/json-schema@*":
+  version "7.0.4"
+  resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.4.tgz#38fd73ddfd9b55abb1e1b2ed578cb55bd7b7d339"
+  integrity sha512-8+KAKzEvSUdeo+kmqnKrqgeE+LcA0tjYWFY7RPProVYwnqDjukzO+3b6dLD56rYX5TdWejnEOLJYOIeh4CXKuA==
+
 "@types/json-schema@^7.0.3":
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.3.tgz#bdfd69d61e464dcc81b25159c270d75a73c1a636"