Image untouched transformer plugin

packages/gatsby-remark-images/.babelrc

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+{
+  "sourceMaps": true,
+  // "env": {
+  //   "development": {
+  //     "sourceMaps": "inline"
+  //   },
+  //   "production": {
+  //     "sourceMaps": false
+  //   }
+  // },
+  "presets": [
+    [
+      "env",
+      {
+        "targets": {
+          "node": 4.0,
+          "uglify": true,
+        }
+      }
+    ],
+    "react",
+    "flow"
+  ],
+  "plugins": [
+    "transform-runtime",
+    "transform-object-rest-spread",
+    "transform-async-to-generator",
+    "transform-flow-strip-types"
+  ]
+}

packages/gatsby-transformer-untouched-images/.gitignore

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+/gatsby-node.js
+/extend-node-type.js
+/on-node-create.js

packages/gatsby-transformer-untouched-images/.npmignore

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+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directory
+# https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
+node_modules
+*.un~
+yarn.lock
+src
+flow-typed
+coverage
+decls
+examples

packages/gatsby-transformer-untouched-images/README.md

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+# gatsby-transformer-untouched-image
+
+Creates `ImageUntouched` nodes from images and leaves them alone. This is a much faster alternative to Sharp processing every image.
+
+## Install
+
+`npm install --save gatsby-transformer-untouched-images`
+
+## How to use
+
+```javascript
+// In your gatsby-config.js
+plugins: [
+  `gatsby-transformer-untouched-images`,
+]
+```
+
+## Parsing algorithm
+
+It recongnizes files with the following extensions as images.
+
+* jpeg
+* jpg
+* png
+* webp
+* tif
+* tiff
+* svg
+
+Each image file is parsed into a node of type `ImageUntouched`.

packages/gatsby-transformer-untouched-images/index.js

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+// noop

packages/gatsby-transformer-untouched-images/package.json

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+{
+  "name": "gatsby-transformer-untouched-images",
+  "version": "1.0.1",
+  "description": "Gatsby transformer plugin for images without Using Sharp.",
+  "scripts": {
+    "build": "babel src --out-dir . --ignore __tests__",
+    "watch": "babel -w src --out-dir . --ignore __tests__"
+  },
+  "keywords": [
+    "gatsby",
+    "gatsby-plugin",
+    "sharp",
+    "image"
+  ],
+  "author": "Chiedo <chiedo@chiedo.com>",
+  "license": "MIT",
+  "dependencies": {
+    "bluebird": "^3.5.0",
+    "image-size": "^0.6.0"
+  },
+  "devDependencies": {
+    "babel-cli": "^6.24.1"
+  }
+}

packages/gatsby-transformer-untouched-images/src/__tests__/__snapshots__/gatsby-node.js.snap

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Process image nodes correctly correctly creates an ImageSharp node from a file image node 1`] = `
+Array [
+  Array [
+    Object {
+      "children": Array [],
+      "id": "whatever >> ImageSharp",
+      "internal": Object {
+        "contentDigest": "whatever",
+        "type": "ImageSharp",
+      },
+      "parent": "whatever",
+    },
+  ],
+]
+`;
+
+exports[`Process image nodes correctly correctly creates an ImageSharp node from a file image node 2`] = `
+Array [
+  Array [
+    Object {
+      "child": Object {
+        "children": Array [],
+        "id": "whatever >> ImageSharp",
+        "internal": Object {
+          "contentDigest": "whatever",
+          "type": "ImageSharp",
+        },
+        "parent": "whatever",
+      },
+      "parent": Object {
+        "children": Array [],
+        "extension": "png",
+        "id": "whatever",
+        "internal": Object {
+          "contentDigest": "whatever",
+        },
+      },
+    },
+  ],
+]
+`;

packages/gatsby-transformer-untouched-images/src/__tests__/gatsby-node.js

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+const Promise = require(`bluebird`)
+
+const { onCreateNode } = require(`../gatsby-node`)
+
+describe(`Process image nodes correctly`, () => {
+  it(`correctly creates an ImageSharp node from a file image node`, async () => {
+    const node = {
+      extension: `png`,
+      id: `whatever`,
+      children: [],
+      internal: {
+        contentDigest: `whatever`,
+      },
+    }
+    const createNode = jest.fn()
+    const createParentChildLink = jest.fn()
+    const boundActionCreators = { createNode, createParentChildLink }
+
+    await onCreateNode({
+      node,
+      boundActionCreators,
+    }).then(() => {
+      expect(createNode.mock.calls).toMatchSnapshot()
+      expect(createParentChildLink.mock.calls).toMatchSnapshot()
+      expect(createNode).toHaveBeenCalledTimes(1)
+      expect(createParentChildLink).toHaveBeenCalledTimes(1)
+    })
+  })
+})

packages/gatsby-transformer-untouched-images/src/extend-node-type.js

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+const Promise = require(`bluebird`)
+const path = require('path');
+
+
+const {
+  GraphQLObjectType,
+  GraphQLInputObjectType,
+  GraphQLBoolean,
+  GraphQLString,
+  GraphQLInt,
+  GraphQLFloat,
+  GraphQLEnumType,
+} = require(`graphql`)
+
+const {promisify} = require('util');
+const ncp = require('ncp');
+const ncpAsync = promisify(ncp);
+const sizeOf = require('image-size');
+
+module.exports = ({ type, pathPrefix, getNodeAndSavePathDependency }) => {
+  if (type.name !== `ImageUntouched`) {
+    return {}
+  }
+
+  return {
+    original: {
+      type: new GraphQLObjectType({
+        name: `ImageUntouchedOriginal`,
+        fields: {
+          width: { type: GraphQLFloat },
+          height: { type: GraphQLFloat },
+          src: { type: GraphQLString },
+        },
+      }),
+      args: {
+      },
+      async resolve(image, fieldArgs, context) {
+        const details = getNodeAndSavePathDependency(image.parent, context.path);
+        const dimensions = sizeOf(details.absolutePath);
+        const imageName = `${image.internal.contentDigest}${details.ext}`;
+        const publicPath = path.join(
+          process.cwd(),
+          `public`,
+          `static/${imageName}`
+        );
+
+        await ncpAsync(details.absolutePath, publicPath);
+
+        return {
+          width: dimensions.width,
+          height: dimensions.height,
+          src: '/static/' + imageName,
+        }
+      },
+    },
+  }
+}
+

packages/gatsby-transformer-untouched-images/src/gatsby-node.js

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+exports.onCreateNode = require(`./on-node-create`)
+exports.setFieldsOnGraphQLNodeType = require(`./extend-node-type`)

packages/gatsby-transformer-untouched-images/src/on-node-create.js

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+const _ = require(`lodash`)
+
+module.exports = async function onCreateNode({ node, boundActionCreators }) {
+  const { createNode, createParentChildLink } = boundActionCreators
+
+  const extensions = [`jpeg`, `jpg`, `png`, `webp`, `tif`, `tiff`, `svg`]
+  if (!_.includes(extensions, node.extension)) {
+    return
+  }
+
+  const imageNode = {
+    id: `${node.id} >> ImageUntouched`,
+    children: [],
+    parent: node.id,
+    internal: {
+      contentDigest: `${node.internal.contentDigest}`,
+      type: `ImageUntouched`,
+    },
+  }
+
+  createNode(imageNode)
+  createParentChildLink({ parent: node, child: imageNode })
+
+  return
+}
+