feat: first commit

Author: ykzts

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.svg]
+insert_final_newline = false

.eslintignore

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+.gitignore

.eslintrc.js

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+module.exports = {
+  extends: '@inabagumi',
+  parserOptions: {
+    project: 'tsconfig.json'
+  },
+  root: true
+}

.gitignore

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+/dist/
+/node_modules/

.prettierignore

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+.gitignore

LICENSE

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+MIT License
+
+Copyright (c) 2020-present Haneru Developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# blurhash-loader
+
+A blurhash loader module for webpack.
+
+## License
+
+[MIT](LICENSE)

package.json

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+{
+  "author": {
+    "email": "contact@haneru.dev",
+    "name": "Haneru Developers",
+    "url": "https://haneru.dev/"
+  },
+  "bugs": {
+    "email": "security@haneru.dev",
+    "url": "https://github.com/inabagumi/blurhash-loader/issues"
+  },
+  "dependencies": {
+    "@jimp/custom": "^0.16.1",
+    "@jimp/gif": "^0.16.1",
+    "@jimp/jpeg": "^0.16.1",
+    "@jimp/png": "^0.16.1",
+    "blurhash": "^1.1.3",
+    "loader-utils": "^2.0.0"
+  },
+  "description": "A blurhash loader module for webpack.",
+  "devDependencies": {
+    "@inabagumi/eslint-config": "^6.0.1",
+    "@inabagumi/prettier-config": "^1.1.2",
+    "@types/loader-utils": "^2.0.1",
+    "@types/webpack": "^4.41.22",
+    "eslint": "^7.11.0",
+    "microbundle": "^0.12.4",
+    "prettier": "^2.1.2"
+  },
+  "homepage": "https://github.com/inabagumi/blurhash-loader",
+  "license": "MIT",
+  "name": "blurhash-loader",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/inabagumi/blurhash-loader.git"
+  },
+  "source": "src/index.ts",
+  "main": "dist/blurhash-loader.js",
+  "module": "dist/blurhash-loader.module.js",
+  "scripts": {
+    "build": "microbundle --no-compress --format es,cjs --no-sourcemap --strict",
+    "format": "prettier --write .",
+    "format-check": "prettier --check .",
+    "lint": "eslint ."
+  },
+  "version": "0.1.0"
+}

prettier.config.js

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+module.exports = require('@inabagumi/prettier-config')

src/index.ts

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+import { encode } from 'blurhash'
+import { getOptions } from 'loader-utils'
+import { loader } from 'webpack'
+import Jimp from './jimp'
+
+type LoaderOptions = {
+  componentX?: number
+  componentY?: number
+}
+
+function loader(this: loader.LoaderContext, content: Buffer): void {
+  if (this.cacheable) this.cacheable()
+
+  const callback = this.async()
+  const options = getOptions(this) as Readonly<LoaderOptions>
+
+  Jimp.read(content)
+    .then(({ bitmap }) => {
+      const pixels = new Uint8ClampedArray(bitmap.data)
+      const blurhash = encode(
+        pixels,
+        bitmap.width,
+        bitmap.height,
+        options.componentX || 4,
+        options.componentY || 3
+      )
+
+      callback(null, `export default '${blurhash}'`)
+    })
+    .catch((error) => {
+      callback(error, null)
+    })
+}
+
+export default loader