From 747ab8fb5c427c5b99099698880291559f583c19 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Mon, 1 Apr 2019 22:17:27 +0200
Subject: [PATCH 01/16] :recycle: Update gatsby-source-hacker-news to use
 createContentDigest helper

---
 packages/gatsby-source-hacker-news/package.json    |  2 +-
 .../gatsby-source-hacker-news/src/gatsby-node.js   | 14 +++-----------
 2 files changed, 4 insertions(+), 12 deletions(-)

diff --git a/packages/gatsby-source-hacker-news/package.json b/packages/gatsby-source-hacker-news/package.json
index 89bdae7fd3ffc..88900ad70bf2c 100644
--- a/packages/gatsby-source-hacker-news/package.json
+++ b/packages/gatsby-source-hacker-news/package.json
@@ -25,7 +25,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-source-hacker-news",
   "scripts": {
diff --git a/packages/gatsby-source-hacker-news/src/gatsby-node.js b/packages/gatsby-source-hacker-news/src/gatsby-node.js
index e53b2e2b06a9e..e275818710b24 100644
--- a/packages/gatsby-source-hacker-news/src/gatsby-node.js
+++ b/packages/gatsby-source-hacker-news/src/gatsby-node.js
@@ -1,5 +1,4 @@
 const axios = require(`axios`)
-const crypto = require(`crypto`)
 const url = require(`url`)
 const _ = require(`lodash`)
 
@@ -13,6 +12,7 @@ exports.sourceNodes = async ({
   getNode,
   createNodeId,
   hasNodeChanged,
+  createContentDigest,
 }) => {
   const { createNode } = actions
 
@@ -117,11 +117,7 @@ fragment commentsFragment on HackerNewsItem {
     storyNode.by = storyNode.by.id
 
     // Get content digest of node.
-    const contentDigest = crypto
-      .createHash(`md5`)
-      .update(JSON.stringify(storyNode))
-      .digest(`hex`)
-
+    const contentDigest = createContentDigest(storyNode)
     storyNode.internal.contentDigest = contentDigest
     createNode(storyNode)
 
@@ -147,11 +143,7 @@ fragment commentsFragment on HackerNewsItem {
         const nodeStr = JSON.stringify(commentNode)
 
         // Get content digest of comment node.
-        const contentDigest = crypto
-          .createHash(`md5`)
-          .update(nodeStr)
-          .digest(`hex`)
-
+        const contentDigest = createContentDigest(nodeStr)
         commentNode.internal.contentDigest = contentDigest
         commentNode.internal.content = nodeStr
 

From 19615ba47454308ee240ec8a9bf4ee817e0d60ed Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Mon, 1 Apr 2019 22:42:30 +0200
Subject: [PATCH 02/16] :recycle: Update gatsby-transformer-excel to use
 createContentDigest helper

---
 .../gatsby-transformer-excel/package.json     |  2 +-
 .../__snapshots__/gatsby-node.js.snap         | 36 +++++++++----------
 .../src/__tests__/gatsby-node.js              |  9 +++++
 .../src/gatsby-node.js                        | 17 ++-------
 4 files changed, 31 insertions(+), 33 deletions(-)

diff --git a/packages/gatsby-transformer-excel/package.json b/packages/gatsby-transformer-excel/package.json
index d9336c3ac4e92..a8a802d4525f2 100644
--- a/packages/gatsby-transformer-excel/package.json
+++ b/packages/gatsby-transformer-excel/package.json
@@ -25,7 +25,7 @@
   "license": "MIT",
   "main": "index.js",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-transformer-excel",
   "scripts": {
diff --git a/packages/gatsby-transformer-excel/src/__tests__/__snapshots__/gatsby-node.js.snap b/packages/gatsby-transformer-excel/src/__tests__/__snapshots__/gatsby-node.js.snap
index 5c31be92a58dd..19d5474d07bfe 100644
--- a/packages/gatsby-transformer-excel/src/__tests__/__snapshots__/gatsby-node.js.snap
+++ b/packages/gatsby-transformer-excel/src/__tests__/__snapshots__/gatsby-node.js.snap
@@ -9,7 +9,7 @@ Array [
       "funny": "yup",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "73901821b17d5aa9dd6026181f73b64c",
+        "contentDigest": "contentDigest",
         "type": "TestCsv__Sheet1",
       },
       "parent": "whatever",
@@ -22,7 +22,7 @@ Array [
       "funny": "nope",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "f624311d932d73dcd416d2a8bea2b67d",
+        "contentDigest": "contentDigest",
         "type": "TestCsv__Sheet1",
       },
       "parent": "whatever",
@@ -33,7 +33,7 @@ Array [
       "children": Array [],
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "10c867561d207bc7dae0455d3cccad5b",
+        "contentDigest": "contentDigest",
         "type": "TestCsv",
       },
       "parent": "whatever",
@@ -52,7 +52,7 @@ Array [
         "funny": "yup",
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "73901821b17d5aa9dd6026181f73b64c",
+          "contentDigest": "contentDigest",
           "type": "TestCsv__Sheet1",
         },
         "parent": "whatever",
@@ -82,7 +82,7 @@ FALSE,nope
         "funny": "nope",
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "f624311d932d73dcd416d2a8bea2b67d",
+          "contentDigest": "contentDigest",
           "type": "TestCsv__Sheet1",
         },
         "parent": "whatever",
@@ -110,7 +110,7 @@ FALSE,nope
         "children": Array [],
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "10c867561d207bc7dae0455d3cccad5b",
+          "contentDigest": "contentDigest",
           "type": "TestCsv",
         },
         "parent": "whatever",
@@ -142,7 +142,7 @@ Array [
       "children": Array [],
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "c685d551c99950924e4b7a78a267a993",
+        "contentDigest": "contentDigest",
         "type": "TestCsv__Sheet1",
       },
       "parent": "whatever",
@@ -155,7 +155,7 @@ Array [
       "children": Array [],
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "f197dfd371325c9aa0693a4c406f6cff",
+        "contentDigest": "contentDigest",
         "type": "TestCsv__Sheet1",
       },
       "parent": "whatever",
@@ -168,7 +168,7 @@ Array [
       "children": Array [],
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "10c867561d207bc7dae0455d3cccad5b",
+        "contentDigest": "contentDigest",
         "type": "TestCsv",
       },
       "parent": "whatever",
@@ -185,7 +185,7 @@ Array [
         "children": Array [],
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "c685d551c99950924e4b7a78a267a993",
+          "contentDigest": "contentDigest",
           "type": "TestCsv__Sheet1",
         },
         "parent": "whatever",
@@ -215,7 +215,7 @@ FALSE,nada
         "children": Array [],
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "f197dfd371325c9aa0693a4c406f6cff",
+          "contentDigest": "contentDigest",
           "type": "TestCsv__Sheet1",
         },
         "parent": "whatever",
@@ -245,7 +245,7 @@ FALSE,nada
         "children": Array [],
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "10c867561d207bc7dae0455d3cccad5b",
+          "contentDigest": "contentDigest",
           "type": "TestCsv",
         },
         "parent": "whatever",
@@ -277,7 +277,7 @@ Array [
       "children": Array [],
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "c685d551c99950924e4b7a78a267a993",
+        "contentDigest": "contentDigest",
         "type": "TestCsv__Sheet1",
       },
       "parent": "whatever",
@@ -290,7 +290,7 @@ Array [
       "children": Array [],
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "f197dfd371325c9aa0693a4c406f6cff",
+        "contentDigest": "contentDigest",
         "type": "TestCsv__Sheet1",
       },
       "parent": "whatever",
@@ -303,7 +303,7 @@ Array [
       "children": Array [],
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "10c867561d207bc7dae0455d3cccad5b",
+        "contentDigest": "contentDigest",
         "type": "TestCsv",
       },
       "parent": "whatever",
@@ -320,7 +320,7 @@ Array [
         "children": Array [],
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "c685d551c99950924e4b7a78a267a993",
+          "contentDigest": "contentDigest",
           "type": "TestCsv__Sheet1",
         },
         "parent": "whatever",
@@ -350,7 +350,7 @@ FALSE,nada
         "children": Array [],
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "f197dfd371325c9aa0693a4c406f6cff",
+          "contentDigest": "contentDigest",
           "type": "TestCsv__Sheet1",
         },
         "parent": "whatever",
@@ -380,7 +380,7 @@ FALSE,nada
         "children": Array [],
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "10c867561d207bc7dae0455d3cccad5b",
+          "contentDigest": "contentDigest",
           "type": "TestCsv",
         },
         "parent": "whatever",
diff --git a/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js b/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js
index 00ccf2b0e50ce..ae51ff027a3b4 100644
--- a/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js
+++ b/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js
@@ -29,17 +29,20 @@ describe(`Process nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
+    const createDigestContent = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode({
       node,
       loadNodeContent,
       actions,
       createNodeId,
+      createDigestContent,
     }).then(() => {
       expect(createNode.mock.calls).toMatchSnapshot()
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
       expect(createNode).toHaveBeenCalledTimes(2 + 1)
       expect(createParentChildLink).toHaveBeenCalledTimes(2 + 1)
+      expect(createDigestContent).toHaveBeenCalledTimes(2 + 1)
     })
   })
 
@@ -53,6 +56,7 @@ describe(`Process nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
+    const createDigestContent = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode(
       {
@@ -60,6 +64,7 @@ describe(`Process nodes correctly`, () => {
         loadNodeContent,
         actions,
         createNodeId,
+        createDigestContent,
       },
       { raw: false }
     ).then(() => {
@@ -67,6 +72,7 @@ describe(`Process nodes correctly`, () => {
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
       expect(createNode).toHaveBeenCalledTimes(2 + 1)
       expect(createParentChildLink).toHaveBeenCalledTimes(2 + 1)
+      expect(createDigestContent).toHaveBeenCalledTimes(2 + 1)
     })
   })
 
@@ -80,6 +86,7 @@ describe(`Process nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
+    const createDigestContent = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode(
       {
@@ -87,6 +94,7 @@ describe(`Process nodes correctly`, () => {
         loadNodeContent,
         actions,
         createNodeId,
+        createDigestContent,
       },
       { rawOutput: false }
     ).then(() => {
@@ -94,6 +102,7 @@ describe(`Process nodes correctly`, () => {
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
       expect(createNode).toHaveBeenCalledTimes(2 + 1)
       expect(createParentChildLink).toHaveBeenCalledTimes(2 + 1)
+      expect(createDigestContent).toHaveBeenCalledTimes(2 + 1)
     })
   })
 })
diff --git a/packages/gatsby-transformer-excel/src/gatsby-node.js b/packages/gatsby-transformer-excel/src/gatsby-node.js
index eb537e6e24719..cb36ecae5cc7e 100644
--- a/packages/gatsby-transformer-excel/src/gatsby-node.js
+++ b/packages/gatsby-transformer-excel/src/gatsby-node.js
@@ -1,7 +1,6 @@
 const XLSX = require(`xlsx`)
 const fs = require(`fs-extra`)
 const _ = require(`lodash`)
-const crypto = require(`crypto`)
 
 // read files as `binary` from file system
 function _loadNodeContent(fileNode, fallback) {
@@ -11,7 +10,7 @@ function _loadNodeContent(fileNode, fallback) {
 }
 
 async function onCreateNode(
-  { node, actions, loadNodeContent, createNodeId },
+  { node, actions, loadNodeContent, createNodeId, createDigestContent },
   options = {}
 ) {
   const { createNode, createParentChildLink } = actions
@@ -45,12 +44,7 @@ async function onCreateNode(
 
     if (_.isArray(parsedContent)) {
       const csvArray = parsedContent.map((obj, i) => {
-        const objStr = JSON.stringify(obj)
-        const contentDigest = crypto
-          .createHash(`md5`)
-          .update(objStr)
-          .digest(`hex`)
-
+        const contentDigest = createDigestContent(obj)
         return {
           ...obj,
           id: obj.id
@@ -74,12 +68,7 @@ async function onCreateNode(
       })
 
       const shObj = { name: n, idx: idx }
-      const shStr = JSON.stringify(shObj)
-      const contentDigest = crypto
-        .createHash(`md5`)
-        .update(shStr)
-        .digest(`hex`)
-
+      const contentDigest = createDigestContent(shObj)
       const z = {
         id: createNodeId(`${node.id} [${idx}] >>> ${node.extension}`),
         children: [],

From cc74c5e83a268024b9b8efc6b27969ee3a9bb807 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 10:10:22 +0200
Subject: [PATCH 03/16] :recycle: Update gatsby-source-wikipedia to use
 createContentDigest helper

---
 packages/gatsby-source-wikipedia/src/gatsby-node.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages/gatsby-source-wikipedia/src/gatsby-node.js b/packages/gatsby-source-wikipedia/src/gatsby-node.js
index bfb311ceaef65..29e11fc088d0d 100644
--- a/packages/gatsby-source-wikipedia/src/gatsby-node.js
+++ b/packages/gatsby-source-wikipedia/src/gatsby-node.js
@@ -1,7 +1,10 @@
 const Promise = require(`bluebird`)
 const { fetchNodesFromSearch } = require(`./fetch`)
 
-exports.sourceNodes = ({ actions, createNodeId }, pluginOptions) => {
+exports.sourceNodes = (
+  { actions, createNodeId, createContentDigest },
+  pluginOptions
+) => {
   const { createNode } = actions
   return Promise.map(pluginOptions.queries, ({ query, limit }) =>
     fetchNodesFromSearch({ query, limit }).then(results =>
@@ -17,10 +20,7 @@ exports.sourceNodes = ({ actions, createNodeId }, pluginOptions) => {
             type: `WikipediaArticle`,
           },
         }
-        node.internal.contentDigest = require(`crypto`)
-          .createHash(`md5`)
-          .update(JSON.stringify(node))
-          .digest(`hex`)
+        node.internal.contentDigest = createContentDigest(node)
         createNode(node)
       })
     )

From a7b96d3d3250bbdbaec51ff8a63516f28922efb0 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 14:49:28 +0200
Subject: [PATCH 04/16] :recycle: Update gatsby-source-wordpress to use
 createContentDigest helper

---
 packages/gatsby-source-wordpress/package.json |  2 +-
 .../__tests__/__snapshots__/normalize.js.snap |  2 +-
 .../src/__tests__/normalize.js                |  7 ++++-
 .../src/gatsby-node.js                        |  8 +++--
 .../gatsby-source-wordpress/src/normalize.js  | 31 ++++++++-----------
 5 files changed, 27 insertions(+), 23 deletions(-)

diff --git a/packages/gatsby-source-wordpress/package.json b/packages/gatsby-source-wordpress/package.json
index 33b2541432e76..2c4f4aa53d452 100644
--- a/packages/gatsby-source-wordpress/package.json
+++ b/packages/gatsby-source-wordpress/package.json
@@ -35,7 +35,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-source-wordpress",
   "scripts": {
diff --git a/packages/gatsby-source-wordpress/src/__tests__/__snapshots__/normalize.js.snap b/packages/gatsby-source-wordpress/src/__tests__/__snapshots__/normalize.js.snap
index f0c76364ea351..cf9ccee320660 100644
--- a/packages/gatsby-source-wordpress/src/__tests__/__snapshots__/normalize.js.snap
+++ b/packages/gatsby-source-wordpress/src/__tests__/__snapshots__/normalize.js.snap
@@ -15915,7 +15915,7 @@ Array [
     Object {
       "children": Array [],
       "internal": Object {
-        "contentDigest": "14d9a406858cbf66499eb9f810894428",
+        "contentDigest": "contentDigest",
         "type": "wordpress__PAGE",
       },
       "link": "/packages/gatsby-source-wordpress/",
diff --git a/packages/gatsby-source-wordpress/src/__tests__/normalize.js b/packages/gatsby-source-wordpress/src/__tests__/normalize.js
index f04077581c9bc..27858c6d3a9aa 100644
--- a/packages/gatsby-source-wordpress/src/__tests__/normalize.js
+++ b/packages/gatsby-source-wordpress/src/__tests__/normalize.js
@@ -116,7 +116,12 @@ describe(`Process WordPress data`, () => {
 
   it(`creates nodes for each entry`, () => {
     const createNode = jest.fn()
-    normalize.createNodesFromEntities({ entities, createNode })
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
+    normalize.createNodesFromEntities({
+      entities,
+      createNode,
+      createContentDigest,
+    })
     expect(createNode.mock.calls).toMatchSnapshot()
   })
 })
diff --git a/packages/gatsby-source-wordpress/src/gatsby-node.js b/packages/gatsby-source-wordpress/src/gatsby-node.js
index 8e63e671572d1..1028c4b438ac8 100644
--- a/packages/gatsby-source-wordpress/src/gatsby-node.js
+++ b/packages/gatsby-source-wordpress/src/gatsby-node.js
@@ -24,7 +24,7 @@ let _excludedRoutes
 let _normalizer
 
 exports.sourceNodes = async (
-  { actions, getNode, store, cache, createNodeId },
+  { actions, getNode, store, cache, createNodeId, createContentDigest },
   {
     baseUrl,
     protocol,
@@ -162,7 +162,11 @@ exports.sourceNodes = async (
   }
 
   // creates nodes for each entry
-  normalize.createNodesFromEntities({ entities, createNode })
+  normalize.createNodesFromEntities({
+    entities,
+    createNode,
+    createContentDigest,
+  })
 
   return
 }
diff --git a/packages/gatsby-source-wordpress/src/normalize.js b/packages/gatsby-source-wordpress/src/normalize.js
index a3928d0039d58..b660e945e3558 100644
--- a/packages/gatsby-source-wordpress/src/normalize.js
+++ b/packages/gatsby-source-wordpress/src/normalize.js
@@ -1,4 +1,3 @@
-const crypto = require(`crypto`)
 const deepMapKeys = require(`deep-map-keys`)
 const _ = require(`lodash`)
 const { createRemoteFileNode } = require(`gatsby-source-filesystem`)
@@ -9,17 +8,6 @@ const conflictFieldPrefix = `wordpress_`
 // restrictedNodeFields from here https://www.gatsbyjs.org/docs/node-interface/
 const restrictedNodeFields = [`id`, `children`, `parent`, `fields`, `internal`]
 
-/**
- * Encrypts a String using md5 hash of hexadecimal digest.
- *
- * @param {any} str
- */
-const digest = str =>
-  crypto
-    .createHash(`md5`)
-    .update(str)
-    .digest(`hex`)
-
 /**
  * Validate the GraphQL naming convetions & protect specific fields.
  *
@@ -536,7 +524,8 @@ const prepareACFChildNodes = (
   topLevelIndex,
   type,
   children,
-  childrenNodes
+  childrenNodes,
+  createContentDigest
 ) => {
   // Replace any child arrays with pointers to nodes
   _.each(obj, (value, key) => {
@@ -549,7 +538,8 @@ const prepareACFChildNodes = (
             topLevelIndex,
             type + key,
             children,
-            childrenNodes
+            childrenNodes,
+            createContentDigest
           ).id
       )
       delete obj[key]
@@ -561,7 +551,7 @@ const prepareACFChildNodes = (
     id: entityId + topLevelIndex + type,
     parent: entityId,
     children: [],
-    internal: { type, contentDigest: digest(JSON.stringify(obj)) },
+    internal: { type, contentDigest: createContentDigest(obj) },
   }
 
   children.push(acfChildNode.id)
@@ -574,7 +564,11 @@ const prepareACFChildNodes = (
   return acfChildNode
 }
 
-exports.createNodesFromEntities = ({ entities, createNode }) => {
+exports.createNodesFromEntities = ({
+  entities,
+  createNode,
+  createContentDigest,
+}) => {
   entities.forEach(e => {
     // Create subnodes for ACF Flexible layouts
     let { __type, ...entity } = e // eslint-disable-line no-unused-vars
@@ -594,7 +588,8 @@ exports.createNodesFromEntities = ({ entities, createNode }) => {
                 key,
                 type,
                 children,
-                childrenNodes
+                childrenNodes,
+                createContentDigest
               )
 
               return acfChildNode.id
@@ -612,7 +607,7 @@ exports.createNodesFromEntities = ({ entities, createNode }) => {
       parent: null,
       internal: {
         type: e.__type,
-        contentDigest: digest(JSON.stringify(entity)),
+        contentDigest: createContentDigest(entity),
       },
     }
     createNode(node)

From 20aa0656ebe94b125c99d32d8c5e9b4e6656db0f Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 14:50:46 +0200
Subject: [PATCH 05/16] :pencil2: Fix typo in function name

---
 .../src/__tests__/gatsby-node.js               | 18 +++++++++---------
 .../src/gatsby-node.js                         |  6 +++---
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js b/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js
index ae51ff027a3b4..2f8b4c33478e8 100644
--- a/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js
+++ b/packages/gatsby-transformer-excel/src/__tests__/gatsby-node.js
@@ -29,20 +29,20 @@ describe(`Process nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
-    const createDigestContent = jest.fn().mockReturnValue(`contentDigest`)
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode({
       node,
       loadNodeContent,
       actions,
       createNodeId,
-      createDigestContent,
+      createContentDigest,
     }).then(() => {
       expect(createNode.mock.calls).toMatchSnapshot()
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
       expect(createNode).toHaveBeenCalledTimes(2 + 1)
       expect(createParentChildLink).toHaveBeenCalledTimes(2 + 1)
-      expect(createDigestContent).toHaveBeenCalledTimes(2 + 1)
+      expect(createContentDigest).toHaveBeenCalledTimes(2 + 1)
     })
   })
 
@@ -56,7 +56,7 @@ describe(`Process nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
-    const createDigestContent = jest.fn().mockReturnValue(`contentDigest`)
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode(
       {
@@ -64,7 +64,7 @@ describe(`Process nodes correctly`, () => {
         loadNodeContent,
         actions,
         createNodeId,
-        createDigestContent,
+        createContentDigest,
       },
       { raw: false }
     ).then(() => {
@@ -72,7 +72,7 @@ describe(`Process nodes correctly`, () => {
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
       expect(createNode).toHaveBeenCalledTimes(2 + 1)
       expect(createParentChildLink).toHaveBeenCalledTimes(2 + 1)
-      expect(createDigestContent).toHaveBeenCalledTimes(2 + 1)
+      expect(createContentDigest).toHaveBeenCalledTimes(2 + 1)
     })
   })
 
@@ -86,7 +86,7 @@ describe(`Process nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
-    const createDigestContent = jest.fn().mockReturnValue(`contentDigest`)
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode(
       {
@@ -94,7 +94,7 @@ describe(`Process nodes correctly`, () => {
         loadNodeContent,
         actions,
         createNodeId,
-        createDigestContent,
+        createContentDigest,
       },
       { rawOutput: false }
     ).then(() => {
@@ -102,7 +102,7 @@ describe(`Process nodes correctly`, () => {
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
       expect(createNode).toHaveBeenCalledTimes(2 + 1)
       expect(createParentChildLink).toHaveBeenCalledTimes(2 + 1)
-      expect(createDigestContent).toHaveBeenCalledTimes(2 + 1)
+      expect(createContentDigest).toHaveBeenCalledTimes(2 + 1)
     })
   })
 })
diff --git a/packages/gatsby-transformer-excel/src/gatsby-node.js b/packages/gatsby-transformer-excel/src/gatsby-node.js
index cb36ecae5cc7e..d85b7b2b91984 100644
--- a/packages/gatsby-transformer-excel/src/gatsby-node.js
+++ b/packages/gatsby-transformer-excel/src/gatsby-node.js
@@ -10,7 +10,7 @@ function _loadNodeContent(fileNode, fallback) {
 }
 
 async function onCreateNode(
-  { node, actions, loadNodeContent, createNodeId, createDigestContent },
+  { node, actions, loadNodeContent, createNodeId, createContentDigest },
   options = {}
 ) {
   const { createNode, createParentChildLink } = actions
@@ -44,7 +44,7 @@ async function onCreateNode(
 
     if (_.isArray(parsedContent)) {
       const csvArray = parsedContent.map((obj, i) => {
-        const contentDigest = createDigestContent(obj)
+        const contentDigest = createContentDigest(obj)
         return {
           ...obj,
           id: obj.id
@@ -68,7 +68,7 @@ async function onCreateNode(
       })
 
       const shObj = { name: n, idx: idx }
-      const contentDigest = createDigestContent(shObj)
+      const contentDigest = createContentDigest(shObj)
       const z = {
         id: createNodeId(`${node.id} [${idx}] >>> ${node.extension}`),
         children: [],

From 674567701db99e3f269d375890135de0906bf705 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 20:09:15 +0200
Subject: [PATCH 06/16] :recycle: Update
 gatsby-transformer-javascript-frontmatter to use createContentDigest helper

---
 .../package.json                                 |  2 +-
 .../src/gatsby-node.js                           | 16 ++++++++--------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/packages/gatsby-transformer-javascript-frontmatter/package.json b/packages/gatsby-transformer-javascript-frontmatter/package.json
index a70fecf36c3fc..997d43e0eaa68 100644
--- a/packages/gatsby-transformer-javascript-frontmatter/package.json
+++ b/packages/gatsby-transformer-javascript-frontmatter/package.json
@@ -22,7 +22,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0",
+    "gatsby": "^2.0.15",
     "gatsby-source-filesystem": "^2.0.3"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-transformer-javascript-frontmatter",
diff --git a/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js b/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
index cb762e81aaa4a..9c7e25882bff0 100644
--- a/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
+++ b/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
@@ -1,9 +1,14 @@
 const _ = require(`lodash`)
-const crypto = require(`crypto`)
 const babylon = require(`@babel/parser`)
 const traverse = require(`@babel/traverse`).default
 
-async function onCreateNode({ node, getNode, actions, loadNodeContent }) {
+async function onCreateNode({
+  node,
+  getNode,
+  actions,
+  loadNodeContent,
+  createContentDigest,
+}) {
   const { createNode, createParentChildLink } = actions
   const fileExtsToProcess = [`js`, `jsx`, `ts`, `tsx`]
 
@@ -107,12 +112,7 @@ async function onCreateNode({ node, getNode, actions, loadNodeContent }) {
         error: error,
       }
 
-      const objStr = JSON.stringify(node)
-      const contentDigest = crypto
-        .createHash(`md5`)
-        .update(objStr)
-        .digest(`hex`)
-
+      const contentDigest = createContentDigest(node)
       const nodeData = {
         id: `${node.id} >>> JavascriptFrontmatter`,
         children: [],

From 8e2b081ea500bb560eae19dbfb32272866358be4 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 20:13:32 +0200
Subject: [PATCH 07/16] :recycle: Update gatsby-source-graphql to use
 createContentDigest helper

---
 packages/gatsby-source-graphql/package.json      |  2 +-
 .../gatsby-source-graphql/src/gatsby-node.js     | 16 +++++++++-------
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/packages/gatsby-source-graphql/package.json b/packages/gatsby-source-graphql/package.json
index a980bc7288e5e..916ad83b40688 100644
--- a/packages/gatsby-source-graphql/package.json
+++ b/packages/gatsby-source-graphql/package.json
@@ -29,7 +29,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-source-graphql",
   "scripts": {
diff --git a/packages/gatsby-source-graphql/src/gatsby-node.js b/packages/gatsby-source-graphql/src/gatsby-node.js
index 904f672be7577..b7fdec499d1b1 100644
--- a/packages/gatsby-source-graphql/src/gatsby-node.js
+++ b/packages/gatsby-source-graphql/src/gatsby-node.js
@@ -1,4 +1,3 @@
-const crypto = require(`crypto`)
 const uuidv4 = require(`uuid/v4`)
 const { buildSchema, printSchema } = require(`graphql`)
 const {
@@ -29,6 +28,7 @@ exports.sourceNodes = async (
     createLink,
     createSchema,
     refetchInterval,
+    createContentDigest,
   } = options
 
   invariant(
@@ -80,7 +80,12 @@ exports.sourceNodes = async (
   })
 
   const nodeId = createNodeId(`gatsby-source-graphql-${typeName}`)
-  const node = createSchemaNode({ id: nodeId, typeName, fieldName })
+  const node = createSchemaNode({
+    id: nodeId,
+    typeName,
+    fieldName,
+    createContentDigest,
+  })
   createNode(node)
 
   const resolver = (parent, args, context) => {
@@ -112,12 +117,9 @@ exports.sourceNodes = async (
   }
 }
 
-function createSchemaNode({ id, typeName, fieldName }) {
+function createSchemaNode({ id, typeName, fieldName, createContentDigest }) {
   const nodeContent = uuidv4()
-  const nodeContentDigest = crypto
-    .createHash(`md5`)
-    .update(nodeContent)
-    .digest(`hex`)
+  const nodeContentDigest = createContentDigest(nodeContent)
   return {
     id,
     typeName: typeName,

From f0ad71304ad19a69035fe8b153421f8727bbaaef Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 20:15:34 +0200
Subject: [PATCH 08/16] :rewind: Revert ":recycle: Update
 gatsby-transformer-javascript-frontmatter to use createContentDigest helper"

This reverts commit 674567701db99e3f269d375890135de0906bf705.
---
 .../package.json                                 |  2 +-
 .../src/gatsby-node.js                           | 16 ++++++++--------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/packages/gatsby-transformer-javascript-frontmatter/package.json b/packages/gatsby-transformer-javascript-frontmatter/package.json
index 997d43e0eaa68..a70fecf36c3fc 100644
--- a/packages/gatsby-transformer-javascript-frontmatter/package.json
+++ b/packages/gatsby-transformer-javascript-frontmatter/package.json
@@ -22,7 +22,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.15",
+    "gatsby": "^2.0.0",
     "gatsby-source-filesystem": "^2.0.3"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-transformer-javascript-frontmatter",
diff --git a/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js b/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
index 9c7e25882bff0..cb762e81aaa4a 100644
--- a/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
+++ b/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
@@ -1,14 +1,9 @@
 const _ = require(`lodash`)
+const crypto = require(`crypto`)
 const babylon = require(`@babel/parser`)
 const traverse = require(`@babel/traverse`).default
 
-async function onCreateNode({
-  node,
-  getNode,
-  actions,
-  loadNodeContent,
-  createContentDigest,
-}) {
+async function onCreateNode({ node, getNode, actions, loadNodeContent }) {
   const { createNode, createParentChildLink } = actions
   const fileExtsToProcess = [`js`, `jsx`, `ts`, `tsx`]
 
@@ -112,7 +107,12 @@ async function onCreateNode({
         error: error,
       }
 
-      const contentDigest = createContentDigest(node)
+      const objStr = JSON.stringify(node)
+      const contentDigest = crypto
+        .createHash(`md5`)
+        .update(objStr)
+        .digest(`hex`)
+
       const nodeData = {
         id: `${node.id} >>> JavascriptFrontmatter`,
         children: [],

From 59c24ad72670f7d377bbebd3dee4bf2c0ba622d5 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 21:25:54 +0200
Subject: [PATCH 09/16] :recycle: Update
 gatsby-transformer-javascript-frontmatter to use createContentDigest helper

---
 .../package.json                                 |  2 +-
 .../src/gatsby-node.js                           | 16 ++++++++--------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/packages/gatsby-transformer-javascript-frontmatter/package.json b/packages/gatsby-transformer-javascript-frontmatter/package.json
index a70fecf36c3fc..997d43e0eaa68 100644
--- a/packages/gatsby-transformer-javascript-frontmatter/package.json
+++ b/packages/gatsby-transformer-javascript-frontmatter/package.json
@@ -22,7 +22,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0",
+    "gatsby": "^2.0.15",
     "gatsby-source-filesystem": "^2.0.3"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-transformer-javascript-frontmatter",
diff --git a/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js b/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
index cb762e81aaa4a..9c7e25882bff0 100644
--- a/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
+++ b/packages/gatsby-transformer-javascript-frontmatter/src/gatsby-node.js
@@ -1,9 +1,14 @@
 const _ = require(`lodash`)
-const crypto = require(`crypto`)
 const babylon = require(`@babel/parser`)
 const traverse = require(`@babel/traverse`).default
 
-async function onCreateNode({ node, getNode, actions, loadNodeContent }) {
+async function onCreateNode({
+  node,
+  getNode,
+  actions,
+  loadNodeContent,
+  createContentDigest,
+}) {
   const { createNode, createParentChildLink } = actions
   const fileExtsToProcess = [`js`, `jsx`, `ts`, `tsx`]
 
@@ -107,12 +112,7 @@ async function onCreateNode({ node, getNode, actions, loadNodeContent }) {
         error: error,
       }
 
-      const objStr = JSON.stringify(node)
-      const contentDigest = crypto
-        .createHash(`md5`)
-        .update(objStr)
-        .digest(`hex`)
-
+      const contentDigest = createContentDigest(node)
       const nodeData = {
         id: `${node.id} >>> JavascriptFrontmatter`,
         children: [],

From b49ee2e01c2cda988f1343c6b82a9307f91bc898 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 21:47:21 +0200
Subject: [PATCH 10/16] :recycle: Update gatsby-transformer-hjson to use
 createContentDigest helper

---
 packages/gatsby-transformer-hjson/package.json    |  2 +-
 .../__tests__/__snapshots__/gatsby-node.js.snap   | 12 ++++++------
 .../src/__tests__/gatsby-node.js                  |  4 ++++
 .../gatsby-transformer-hjson/src/gatsby-node.js   | 15 ++++++++-------
 4 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/packages/gatsby-transformer-hjson/package.json b/packages/gatsby-transformer-hjson/package.json
index 36d5516c3639f..28361fede523a 100644
--- a/packages/gatsby-transformer-hjson/package.json
+++ b/packages/gatsby-transformer-hjson/package.json
@@ -25,7 +25,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-transformer-hjson",
   "scripts": {
diff --git a/packages/gatsby-transformer-hjson/src/__tests__/__snapshots__/gatsby-node.js.snap b/packages/gatsby-transformer-hjson/src/__tests__/__snapshots__/gatsby-node.js.snap
index a10b0dc1966cb..c33e479579cc8 100644
--- a/packages/gatsby-transformer-hjson/src/__tests__/__snapshots__/gatsby-node.js.snap
+++ b/packages/gatsby-transformer-hjson/src/__tests__/__snapshots__/gatsby-node.js.snap
@@ -9,7 +9,7 @@ Array [
       "funny": "yup",
       "id": "foo",
       "internal": Object {
-        "contentDigest": "8838e569ae02d98806532310fb2a577a",
+        "contentDigest": "contentDigest",
         "type": "FooHJson",
       },
       "parent": "whatever",
@@ -28,7 +28,7 @@ Array [
         "funny": "yup",
         "id": "foo",
         "internal": Object {
-          "contentDigest": "8838e569ae02d98806532310fb2a577a",
+          "contentDigest": "contentDigest",
           "type": "FooHJson",
         },
         "parent": "whatever",
@@ -64,7 +64,7 @@ Array [
       "funny": "yup",
       "id": "foo",
       "internal": Object {
-        "contentDigest": "8838e569ae02d98806532310fb2a577a",
+        "contentDigest": "contentDigest",
         "type": "NodeNameHJson",
       },
       "parent": "whatever",
@@ -77,7 +77,7 @@ Array [
       "funny": "nope",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "f624311d932d73dcd416d2a8bea2b67d",
+        "contentDigest": "contentDigest",
         "type": "NodeNameHJson",
       },
       "parent": "whatever",
@@ -96,7 +96,7 @@ Array [
         "funny": "yup",
         "id": "foo",
         "internal": Object {
-          "contentDigest": "8838e569ae02d98806532310fb2a577a",
+          "contentDigest": "contentDigest",
           "type": "NodeNameHJson",
         },
         "parent": "whatever",
@@ -133,7 +133,7 @@ Array [
         "funny": "nope",
         "id": "uuid-from-gatsby",
         "internal": Object {
-          "contentDigest": "f624311d932d73dcd416d2a8bea2b67d",
+          "contentDigest": "contentDigest",
           "type": "NodeNameHJson",
         },
         "parent": "whatever",
diff --git a/packages/gatsby-transformer-hjson/src/__tests__/gatsby-node.js b/packages/gatsby-transformer-hjson/src/__tests__/gatsby-node.js
index 4fff3357b6c3c..c6668c6ca9668 100644
--- a/packages/gatsby-transformer-hjson/src/__tests__/gatsby-node.js
+++ b/packages/gatsby-transformer-hjson/src/__tests__/gatsby-node.js
@@ -32,12 +32,14 @@ describe(`Process HJSON nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode({
       node,
       loadNodeContent,
       actions,
       createNodeId,
+      createContentDigest,
     }).then(() => {
       expect(createNode.mock.calls).toMatchSnapshot()
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
@@ -56,12 +58,14 @@ describe(`Process HJSON nodes correctly`, () => {
     const actions = { createNode, createParentChildLink }
     const createNodeId = jest.fn()
     createNodeId.mockReturnValue(`uuid-from-gatsby`)
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
 
     await onCreateNode({
       node,
       loadNodeContent,
       actions,
       createNodeId,
+      createContentDigest,
     }).then(() => {
       expect(createNode.mock.calls).toMatchSnapshot()
       expect(createParentChildLink.mock.calls).toMatchSnapshot()
diff --git a/packages/gatsby-transformer-hjson/src/gatsby-node.js b/packages/gatsby-transformer-hjson/src/gatsby-node.js
index b300604449e04..ab009bc55b551 100644
--- a/packages/gatsby-transformer-hjson/src/gatsby-node.js
+++ b/packages/gatsby-transformer-hjson/src/gatsby-node.js
@@ -1,17 +1,18 @@
 const _ = require(`lodash`)
-const crypto = require(`crypto`)
 const path = require(`path`)
 const HJSON = require(`hjson`)
 
-async function onCreateNode({ node, actions, loadNodeContent, createNodeId }) {
+async function onCreateNode({
+  node,
+  actions,
+  loadNodeContent,
+  createNodeId,
+  createContentDigest,
+}) {
   const { createNode, createParentChildLink } = actions
 
   function transformObject(obj, id, type) {
-    const objStr = JSON.stringify(obj)
-    const contentDigest = crypto
-      .createHash(`md5`)
-      .update(objStr)
-      .digest(`hex`)
+    const contentDigest = createContentDigest(obj)
     const jsonNode = {
       ...obj,
       id,

From 3cfd5742b9d40c69adaa26984e04a9170e70ecb2 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Tue, 2 Apr 2019 22:15:32 +0200
Subject: [PATCH 11/16] :recycle: Update gatsby-source-npm-package-search to
 use createContentDigest helper

---
 packages/gatsby-source-npm-package-search/package.json   | 2 +-
 .../gatsby-source-npm-package-search/src/gatsby-node.js  | 9 +--------
 2 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/packages/gatsby-source-npm-package-search/package.json b/packages/gatsby-source-npm-package-search/package.json
index 2ee78b971214f..f6b270fa37977 100644
--- a/packages/gatsby-source-npm-package-search/package.json
+++ b/packages/gatsby-source-npm-package-search/package.json
@@ -20,7 +20,7 @@
   "license": "MIT",
   "main": "index.js",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "scripts": {
     "build": "babel src --out-dir . --ignore **/__tests__",
diff --git a/packages/gatsby-source-npm-package-search/src/gatsby-node.js b/packages/gatsby-source-npm-package-search/src/gatsby-node.js
index 13606aef3a41b..590a55fc154c1 100644
--- a/packages/gatsby-source-npm-package-search/src/gatsby-node.js
+++ b/packages/gatsby-source-npm-package-search/src/gatsby-node.js
@@ -1,15 +1,8 @@
 const algoliasearch = require(`algoliasearch`)
-const crypto = require(`crypto`)
 
 const client = algoliasearch(`OFCNCOG2CU`, `6fbcaeafced8913bf0e4d39f0b541957`)
 var index = client.initIndex(`npm-search`)
 
-const createContentDigest = obj =>
-  crypto
-    .createHash(`md5`)
-    .update(JSON.stringify(obj))
-    .digest(`hex`)
-
 function browse({ index, ...params }) {
   let hits = []
   const browser = index.browseAll(params)
@@ -22,7 +15,7 @@ function browse({ index, ...params }) {
 }
 
 exports.sourceNodes = async (
-  { boundActionCreators, createNodeId },
+  { boundActionCreators, createNodeId, createContentDigest },
   { keywords }
 ) => {
   const { createNode } = boundActionCreators

From 4d8cf40bcfbfbb13df0f95ff0d190c4529b1dfb3 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Wed, 3 Apr 2019 13:49:20 +0200
Subject: [PATCH 12/16] :recycle: Update gatsby-source-lever to use
 createContentDigest helper

---
 packages/gatsby-source-lever/package.json     |  2 +-
 .../__tests__/__snapshots__/normalize.js.snap | 38 +++++++++----------
 .../src/__tests__/normalize.js                |  7 +++-
 .../gatsby-source-lever/src/gatsby-node.js    |  8 +++-
 packages/gatsby-source-lever/src/normalize.js |  8 +++-
 5 files changed, 38 insertions(+), 25 deletions(-)

diff --git a/packages/gatsby-source-lever/package.json b/packages/gatsby-source-lever/package.json
index 70d43edeb0ff2..10b7b8da16199 100644
--- a/packages/gatsby-source-lever/package.json
+++ b/packages/gatsby-source-lever/package.json
@@ -31,7 +31,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-source-lever",
   "scripts": {
diff --git a/packages/gatsby-source-lever/src/__tests__/__snapshots__/normalize.js.snap b/packages/gatsby-source-lever/src/__tests__/__snapshots__/normalize.js.snap
index ff278de7ac887..77fc3d34daedc 100644
--- a/packages/gatsby-source-lever/src/__tests__/__snapshots__/normalize.js.snap
+++ b/packages/gatsby-source-lever/src/__tests__/__snapshots__/normalize.js.snap
@@ -2749,7 +2749,7 @@ Lever’s Sales organization is a tight-knit team with diverse backgrounds--we
       "hostedUrl": "https://jobs.lever.co/lever/4432ed35-6f71-4ea4-b802-f99af29d71b6",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "6afa157457057c1a22bdec0e27495a3b",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "4432ed35-6f71-4ea4-b802-f99af29d71b6",
@@ -2798,7 +2798,7 @@ JavaScript, Node.js, MongoDB, Redis, Elasticsearch, DerbyJS, ShareDB, IMAP, SMTP
       "hostedUrl": "https://jobs.lever.co/lever/7ab138b0-b5c8-425d-93ae-2fc2b051bc0e",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "9aa12a00f412e84623d60e8e3c9a892b",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "7ab138b0-b5c8-425d-93ae-2fc2b051bc0e",
@@ -2859,7 +2859,7 @@ Lever’s Sales organization is a tight-knit team with diverse backgrounds--we
       "hostedUrl": "https://jobs.lever.co/lever/182706ef-d98a-46ad-92bb-b7cddeb58419",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "6b8dea31eee4d6d49b08bddeb2ecbba0",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "182706ef-d98a-46ad-92bb-b7cddeb58419",
@@ -2921,7 +2921,7 @@ Please note, this role is on-site and located in San Francisco, California.
       "hostedUrl": "https://jobs.lever.co/lever/8ef9f55b-1ca0-4c2b-b85d-56613d397098",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "ba7357d3b7205aab95fea87f486a0b8b",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "8ef9f55b-1ca0-4c2b-b85d-56613d397098",
@@ -2978,7 +2978,7 @@ Our next coworker is hands-on, collaborative, self-motivated, analytical, and pa
       "hostedUrl": "https://jobs.lever.co/lever/b8093a5d-46e5-4470-be07-16759ccaae14",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "0211574c85e985208d118544e4921e69",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "b8093a5d-46e5-4470-be07-16759ccaae14",
@@ -3031,7 +3031,7 @@ You’re a fantastic listener, solutions oriented, and a problem-solver at heart
       "hostedUrl": "https://jobs.lever.co/lever/4d23b480-37c7-4f87-890e-13bde50c52a2",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "84aab21e7d760d53bed9de4433698945",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "4d23b480-37c7-4f87-890e-13bde50c52a2",
@@ -3087,7 +3087,7 @@ As an engineering manager, you’ll lead a team of product developers as they bu
       "hostedUrl": "https://jobs.lever.co/lever/37c2fb0d-03ef-4c7d-a6b0-cac02488f53b",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "a89df3d73afb0f6f65a6f690ae30c777",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "37c2fb0d-03ef-4c7d-a6b0-cac02488f53b",
@@ -3146,7 +3146,7 @@ Lever’s Sales team is a tight-knit and rapidly growing team with diverse backg
       "hostedUrl": "https://jobs.lever.co/lever/6e55f2fc-7a4e-42c9-ab5e-775fbc7b126a",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "f6fb7d85df782b4eff5085a7496bbe4e",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "6e55f2fc-7a4e-42c9-ab5e-775fbc7b126a",
@@ -3191,7 +3191,7 @@ This role is perfect for someone that enjoys challenging tasks, working on many
       "hostedUrl": "https://jobs.lever.co/lever/62fbd830-e891-45fc-a8d6-8849a888b697",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "cbe4c334650ce99b5813094d6e80a006",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "62fbd830-e891-45fc-a8d6-8849a888b697",
@@ -3246,7 +3246,7 @@ Lever’s Sales team is a tight-knit team with diverse backgrounds--we’re seas
       "hostedUrl": "https://jobs.lever.co/lever/4c5c5337-6a44-4c7c-80ae-3aeceb4603a0",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "c4d6b23a78da7bbe549ecec92e8459d4",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "4c5c5337-6a44-4c7c-80ae-3aeceb4603a0",
@@ -3312,7 +3312,7 @@ Learn more about Lever’s interview process and read about what our engineering
       "hostedUrl": "https://jobs.lever.co/lever/befa0df5-da1f-4c11-adc2-d3eb2fa189da",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "68a44303a59c8e2e6296c959af1e314a",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "befa0df5-da1f-4c11-adc2-d3eb2fa189da",
@@ -3368,7 +3368,7 @@ This is an opportunity for someone who wants to be part of something big and tra
       "hostedUrl": "https://jobs.lever.co/lever/f366f610-1af4-43c1-9213-9c39830a715f",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "96729eb3a7c40a9a30137fe1adbab65a",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "f366f610-1af4-43c1-9213-9c39830a715f",
@@ -3429,7 +3429,7 @@ Lever’s Sales team is a tight-knit and rapidly growing team with diverse backg
       "hostedUrl": "https://jobs.lever.co/lever/0a28373c-4b92-4c6e-a6d1-d4654a89329e",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "f912357bbad60de2ca4a4dbfb4302263",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "0a28373c-4b92-4c6e-a6d1-d4654a89329e",
@@ -3475,7 +3475,7 @@ We’re building a world-class product-first organization and assembling the rig
       "hostedUrl": "https://jobs.lever.co/lever/85df11e0-5aad-4fa4-9238-d07b506f9a07",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "ca1af348b856a922e3938df88d11575f",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "85df11e0-5aad-4fa4-9238-d07b506f9a07",
@@ -3534,7 +3534,7 @@ From day one as a Leveroo, you'll be an active contributor to the Lever culture
       "hostedUrl": "https://jobs.lever.co/lever/c4b1635e-b308-4c8b-b2ca-1b536a7726ad",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "d674452420791401cd90cc2e44675dd3",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "c4b1635e-b308-4c8b-b2ca-1b536a7726ad",
@@ -3596,7 +3596,7 @@ Lever’s Sales Development team is a tight-knit team with diverse backgrounds--
       "hostedUrl": "https://jobs.lever.co/lever/bc6bd95d-262a-460c-b6dc-6b4d46cf6927",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "9a856a9d4a078a3fef16bf2af5df66ba",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "bc6bd95d-262a-460c-b6dc-6b4d46cf6927",
@@ -3646,7 +3646,7 @@ Lever’s Sales Development team is a tight-knit team with diverse backgrounds--
       "hostedUrl": "https://jobs.lever.co/lever/ba77c5e6-2f6c-4ee7-b37b-09dc02b3395f",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "b0445f8ba1213c5f845587958da3545a",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "ba77c5e6-2f6c-4ee7-b37b-09dc02b3395f",
@@ -3695,7 +3695,7 @@ In terms of what we’re looking for, past tenure at a hyper-growth startup is i
       "hostedUrl": "https://jobs.lever.co/lever/7f673706-37a2-4386-bee5-bd2892bc0cfc",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "f8b43fa0ad69c3201c5ab2b1669999f5",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "7f673706-37a2-4386-bee5-bd2892bc0cfc",
@@ -3749,7 +3749,7 @@ We’re looking for you to be as maniacal about Finance as we are about hiring (
       "hostedUrl": "https://jobs.lever.co/lever/0a47a57c-a05a-48b3-90ec-2caca6d2807b",
       "id": "uuid-from-gatsby",
       "internal": Object {
-        "contentDigest": "6a0ba5304335497cd7056fdcd0bc568d",
+        "contentDigest": "contentDigest",
         "type": "lever",
       },
       "lever_id": "0a47a57c-a05a-48b3-90ec-2caca6d2807b",
diff --git a/packages/gatsby-source-lever/src/__tests__/normalize.js b/packages/gatsby-source-lever/src/__tests__/normalize.js
index aa976b2abade5..4d8e5c3cec8df 100644
--- a/packages/gatsby-source-lever/src/__tests__/normalize.js
+++ b/packages/gatsby-source-lever/src/__tests__/normalize.js
@@ -22,7 +22,12 @@ describe(`Process Lever data`, () => {
   })
   it(`creates nodes for each entry`, () => {
     const createNode = jest.fn()
-    normalize.createNodesFromEntities({ entities, createNode })
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
+    normalize.createNodesFromEntities({
+      entities,
+      createNode,
+      createContentDigest,
+    })
     expect(createNode.mock.calls).toMatchSnapshot()
   })
 })
diff --git a/packages/gatsby-source-lever/src/gatsby-node.js b/packages/gatsby-source-lever/src/gatsby-node.js
index afac68c621408..ce6a70b8d2add 100644
--- a/packages/gatsby-source-lever/src/gatsby-node.js
+++ b/packages/gatsby-source-lever/src/gatsby-node.js
@@ -4,7 +4,7 @@ const normalize = require(`./normalize`)
 const typePrefix = `lever__`
 
 exports.sourceNodes = async (
-  { actions, getNode, store, cache, createNodeId },
+  { actions, getNode, store, cache, createNodeId, createContentDigest },
   { site, verboseOutput }
 ) => {
   const { createNode } = actions
@@ -30,7 +30,11 @@ exports.sourceNodes = async (
   entities = normalize.createGatsbyIds(createNodeId, entities)
 
   // creates nodes for each entry
-  normalize.createNodesFromEntities({ entities, createNode })
+  normalize.createNodesFromEntities({
+    entities,
+    createNode,
+    createContentDigest,
+  })
 
   return
 }
diff --git a/packages/gatsby-source-lever/src/normalize.js b/packages/gatsby-source-lever/src/normalize.js
index b9aaa4cb58b9a..41dd83dd9263b 100644
--- a/packages/gatsby-source-lever/src/normalize.js
+++ b/packages/gatsby-source-lever/src/normalize.js
@@ -133,7 +133,11 @@ exports.createGatsbyIds = (createNodeId, entities) =>
     return e
   })
 
-exports.createNodesFromEntities = ({ entities, createNode }) => {
+exports.createNodesFromEntities = ({
+  entities,
+  createNode,
+  createContentDigest,
+}) => {
   entities.forEach(e => {
     let { ...entity } = e
     let node = {
@@ -142,7 +146,7 @@ exports.createNodesFromEntities = ({ entities, createNode }) => {
       children: [],
       internal: {
         type: `lever`,
-        contentDigest: digest(JSON.stringify(entity)),
+        contentDigest: createContentDigest(entity),
       },
     }
     createNode(node)

From 72a66261e21a88f2172aeb1ecb682a15d4880948 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Wed, 3 Apr 2019 14:23:34 +0200
Subject: [PATCH 13/16] :recycle: Update
 gatsby-transformer-javascript-static-exports to use createContentDigest
 helper

---
 .../package.json                                         | 2 +-
 .../src/gatsby-node.js                                   | 9 ++-------
 2 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/packages/gatsby-transformer-javascript-static-exports/package.json b/packages/gatsby-transformer-javascript-static-exports/package.json
index 6694c86e36bf8..a3599812f6a9f 100644
--- a/packages/gatsby-transformer-javascript-static-exports/package.json
+++ b/packages/gatsby-transformer-javascript-static-exports/package.json
@@ -26,7 +26,7 @@
   ],
   "license": "MIT",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-transformer-javascript-static-exports",
   "scripts": {
diff --git a/packages/gatsby-transformer-javascript-static-exports/src/gatsby-node.js b/packages/gatsby-transformer-javascript-static-exports/src/gatsby-node.js
index 41532df6b4a7d..3ff8d86825258 100644
--- a/packages/gatsby-transformer-javascript-static-exports/src/gatsby-node.js
+++ b/packages/gatsby-transformer-javascript-static-exports/src/gatsby-node.js
@@ -1,5 +1,4 @@
 const _ = require(`lodash`)
-const crypto = require(`crypto`)
 const babylon = require(`@babel/parser`)
 const traverse = require(`@babel/traverse`).default
 
@@ -9,6 +8,7 @@ async function onCreateNode({
   actions,
   loadNodeContent,
   createNodeId,
+  createContentDigest,
 }) {
   const { createNode, createParentChildLink } = actions
 
@@ -126,12 +126,7 @@ async function onCreateNode({
       },
     }
   } finally {
-    const objStr = JSON.stringify(node)
-    const contentDigest = crypto
-      .createHash(`md5`)
-      .update(objStr)
-      .digest(`hex`)
-
+    const contentDigest = createContentDigest(node)
     const nodeData = {
       id: createNodeId(`${node.id} >>> JSFrontmatter`),
       children: [],

From 0c17f36167c38139290e5ed95793f385c27d27c8 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Wed, 3 Apr 2019 14:42:32 +0200
Subject: [PATCH 14/16] :recycle: Update gatsby-transformer-react-docgen to use
 createContentDigest helper

---
 .../package.json                              |  2 +-
 .../src/__tests__/on-node-create.js           |  7 ++-
 .../src/on-node-create.js                     | 52 +++++++++++++------
 3 files changed, 42 insertions(+), 19 deletions(-)

diff --git a/packages/gatsby-transformer-react-docgen/package.json b/packages/gatsby-transformer-react-docgen/package.json
index f2b5370f2c143..577321278712d 100644
--- a/packages/gatsby-transformer-react-docgen/package.json
+++ b/packages/gatsby-transformer-react-docgen/package.json
@@ -31,7 +31,7 @@
   "license": "MIT",
   "main": "index.js",
   "peerDependencies": {
-    "gatsby": "^2.0.0"
+    "gatsby": "^2.0.15"
   },
   "repository": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-transformer-react-docgen",
   "scripts": {
diff --git a/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js b/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js
index ac7e574523ee6..10e43a88003ff 100644
--- a/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js
+++ b/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js
@@ -16,17 +16,20 @@ describe(`transformer-react-doc-gen: onCreateNode`, () => {
   let loadNodeContent, actions, node, createdNodes, updatedNodes
   const createNodeId = jest.fn()
   createNodeId.mockReturnValue(`uuid-from-gatsby`)
-  let run = (node, opts = {}) =>
-    onCreateNode(
+  let run = (node, opts = {}) => {
+    const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
+    return onCreateNode(
       {
         node,
         loadNodeContent,
         actions,
         createNodeId,
         reporter: { error: console.error },
+        createContentDigest,
       },
       opts
     )
+  }
 
   let consoleError
   beforeEach(() => {
diff --git a/packages/gatsby-transformer-react-docgen/src/on-node-create.js b/packages/gatsby-transformer-react-docgen/src/on-node-create.js
index 782b5f581bc74..5fd67f91ecd68 100644
--- a/packages/gatsby-transformer-react-docgen/src/on-node-create.js
+++ b/packages/gatsby-transformer-react-docgen/src/on-node-create.js
@@ -1,12 +1,5 @@
-import crypto from "crypto"
 import parseMetadata from "./parse"
 
-const digest = str =>
-  crypto
-    .createHash(`md5`)
-    .update(str)
-    .digest(`hex`)
-
 const propsId = (parentId, name) => `${parentId}--ComponentProp-${name}`
 const descId = parentId => `${parentId}--ComponentDescription`
 
@@ -23,7 +16,13 @@ function canParse(node) {
   )
 }
 
-function createDescriptionNode(node, entry, actions, createNodeId) {
+function createDescriptionNode(
+  node,
+  entry,
+  actions,
+  createNodeId,
+  createContentDigest
+) {
   if (!entry.description) return node
   const { createNode } = actions
 
@@ -36,7 +35,7 @@ function createDescriptionNode(node, entry, actions, createNodeId) {
       type: `ComponentDescription`,
       mediaType: `text/markdown`,
       content: entry.description,
-      contentDigest: digest(entry.description),
+      contentDigest: createContentDigest(entry.description),
     },
   }
 
@@ -47,7 +46,13 @@ function createDescriptionNode(node, entry, actions, createNodeId) {
   return node
 }
 
-function createPropNodes(node, component, actions, createNodeId) {
+function createPropNodes(
+  node,
+  component,
+  actions,
+  createNodeId,
+  createContentDigest
+) {
   const { createNode } = actions
   let children = new Array(component.props.length)
 
@@ -63,11 +68,17 @@ function createPropNodes(node, component, actions, createNodeId) {
       parentType: prop.type,
       internal: {
         type: `ComponentProp`,
-        contentDigest: digest(content),
+        contentDigest: createContentDigest(content),
       },
     }
     children[i] = propNode.id
-    propNode = createDescriptionNode(propNode, prop, actions, createNodeId)
+    propNode = createDescriptionNode(
+      propNode,
+      prop,
+      actions,
+      createNodeId,
+      createContentDigest
+    )
     createNode(propNode)
   })
 
@@ -77,7 +88,14 @@ function createPropNodes(node, component, actions, createNodeId) {
 }
 
 export default async function onCreateNode(
-  { node, loadNodeContent, actions, createNodeId, reporter },
+  {
+    node,
+    loadNodeContent,
+    actions,
+    createNodeId,
+    reporter,
+    createContentDigest,
+  },
   pluginOptions
 ) {
   const { createNode, createParentChildLink } = actions
@@ -101,7 +119,7 @@ export default async function onCreateNode(
 
   components.forEach(component => {
     const strContent = JSON.stringify(component)
-    const contentDigest = digest(strContent)
+    const contentDigest = createContentDigest(strContent)
     const nodeId = `${node.id}--${component.displayName}--ComponentMetadata`
 
     let metadataNode = {
@@ -121,13 +139,15 @@ export default async function onCreateNode(
       metadataNode,
       component,
       actions,
-      createNodeId
+      createNodeId,
+      createContentDigest
     )
     metadataNode = createDescriptionNode(
       metadataNode,
       component,
       actions,
-      createNodeId
+      createNodeId,
+      createContentDigest
     )
     createNode(metadataNode)
   })

From 22be38fc6288d3fd011631ace06eb20f92f7abed Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Fri, 5 Apr 2019 14:25:45 +0200
Subject: [PATCH 15/16] :white_check_mark: Fix merge error

---
 .../src/__tests__/on-node-create.js                           | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js b/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js
index 7650e0bc0b48e..b4f0ce780b623 100644
--- a/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js
+++ b/packages/gatsby-transformer-react-docgen/src/__tests__/on-node-create.js
@@ -17,9 +17,9 @@ describe(`transformer-react-doc-gen: onCreateNode`, () => {
   const createNodeId = jest.fn()
 
   createNodeId.mockReturnValue(`uuid-from-gatsby`)
-  let run = (node, opts) => {
+  let run = (node, opts = {}) => {
     const createContentDigest = jest.fn().mockReturnValue(`contentDigest`)
-    onCreateNode(
+    return onCreateNode(
       {
         node,
         loadNodeContent,

From f6a71b2e4189cc2ad22fdda622a60b0a63de2ba6 Mon Sep 17 00:00:00 2001
From: FRIN Yvonnick <frin.yvonnick@gmail.com>
Date: Fri, 5 Apr 2019 14:30:18 +0200
Subject: [PATCH 16/16] :ok_hand: Take care of @muescha review

---
 packages/gatsby-source-lever/src/normalize.js | 24 +++++++------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/packages/gatsby-source-lever/src/normalize.js b/packages/gatsby-source-lever/src/normalize.js
index 41dd83dd9263b..80d59e1d80c82 100644
--- a/packages/gatsby-source-lever/src/normalize.js
+++ b/packages/gatsby-source-lever/src/normalize.js
@@ -1,22 +1,9 @@
-const crypto = require(`crypto`)
 const deepMapKeys = require(`deep-map-keys`)
-const stringify = require(`json-stringify-safe`)
 
 const conflictFieldPrefix = `lever_`
 // restrictedNodeFields from here https://www.gatsbyjs.org/docs/node-interface/
 const restrictedNodeFields = [`id`, `children`, `parent`, `fields`, `internal`]
 
-/**
- * Encrypts a String using md5 hash of hexadecimal digest.
- *
- * @param {any} str
- */
-const digest = str =>
-  crypto
-    .createHash(`md5`)
-    .update(str)
-    .digest(`hex`)
-
 /**
  * Create the Graph QL Node
  *
@@ -24,7 +11,14 @@ const digest = str =>
  * @param {any} type
  * @param {any} createNode
  */
-async function createGraphQLNode(ent, type, createNode, store, cache) {
+async function createGraphQLNode(
+  ent,
+  type,
+  createNode,
+  store,
+  cache,
+  createContentDigest
+) {
   let id = !ent.id ? (!ent.ID ? 0 : ent.ID) : ent.id
   let node = {
     id: `${type}_${id.toString()}`,
@@ -36,7 +30,7 @@ async function createGraphQLNode(ent, type, createNode, store, cache) {
   }
   node = recursiveAddFields(ent, node)
   node.internal.content = JSON.stringify(node)
-  node.internal.contentDigest = digest(stringify(node))
+  node.internal.contentDigest = createContentDigest(node)
   createNode(node)
 }
 exports.createGraphQLNode = createGraphQLNode