gatsby-source-netlify-lfs/lib/generateBase64.js

Use Netlify's Git LFS Transform Image API with gatsby-image

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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    var desc = Object.getOwnPropertyDescriptor(m, k);
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    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.processImage = void 0;
const sharp_1 = __importDefault(require("sharp"));
const fs = __importStar(require("fs"));
function processImage(file, options) {
    return __awaiter(this, void 0, void 0, function* () {
        let pipeline;
        try {
            pipeline = (0, sharp_1.default)();
            fs.createReadStream(file).pipe(pipeline);
        }
        catch (err) {
            console.warn(`Failed to process image ${file}`);
            return null;
        }
        const { width, height, density, format } = yield pipeline.metadata();
        pipeline.resize({
            width: options.blurredOptions.width,
        }).png({
            adaptiveFiltering: false,
            force: options.blurredOptions.toFormat === `png`
        }).jpeg({
            force: options.blurredOptions.toFormat === `jpg`
        });
        let buffer;
        let info;
        let dominant;
        try {
            const result = yield pipeline.toBuffer({
                resolveWithObject: true
            });
            buffer = result.data;
            info = result.info;
            const stats = yield (0, sharp_1.default)(result.data).stats();
            dominant = stats.dominant;
        }
        catch (err) {
            console.warn(`Failed to process image ${file}. It is probably corrupt, so please try replacing it.`);
            return null;
        }
        const dominantColor = dominant ? rgbToHex(dominant.r, dominant.g, dominant.b) : `rgba(0,0,0,0.5)`;
        const src = `data:image/${info.format};base64,${buffer.toString(`base64`)}`;
        const originalName = file;
        const base64output = {
            src,
            width,
            height,
            density,
            format,
            originalName,
            dominantColor
        };
        return base64output;
    });
}
exports.processImage = processImage;
function rgbToHex(red, green, blue) {
    return `#${(blue | green << 8 | red << 16 | 1 << 24).toString(16).slice(1)}`;
}
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