gatsby-plugin-satorare
Version:
Gatsby plugin that can dynamically generate OG images using JSX syntax for site and markdowns.
216 lines (215 loc) • 10.8 kB
JavaScript
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
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 __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { fileURLToPath } from "node:url";
import { createFileNodeFromBuffer } from "gatsby-source-filesystem";
import satori from "satori";
import sharp from "sharp";
import typescript from "typescript";
var __filename = fileURLToPath(import.meta.url);
var __dirname = path.dirname(__filename);
var defaultOption = {
path: "",
fonts: [
{
name: "NotoSansJP",
path: "".concat(__dirname, "/assets/NotoSansJP-Regular.otf"),
weight: 400,
style: "normal",
},
],
width: 1200,
height: 630,
graphemeImages: {},
target_nodes: ["Site", "MarkdownRemark"],
};
var ogImageCacheKey = function (node) {
return "gatsby-plugin-satorare-ogimage-".concat(node.internal.type, "-").concat(node.internal.contentDigest);
};
var generateOGImage = function (node, fonts, option) { return __awaiter(void 0, void 0, void 0, function () {
var ogImageReactElement, svg;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, createOgImageReactElement(node, option.path)];
case 1:
ogImageReactElement = _a.sent();
return [4 /*yield*/, satori(ogImageReactElement, {
width: option.width,
height: option.height,
fonts: fonts,
graphemeImages: option.graphemeImages,
})];
case 2:
svg = _a.sent();
return [2 /*return*/, sharp(Buffer.from(svg)).png().toBuffer()];
}
});
}); };
var createOgImageReactElement = function (node, filepath) { return __awaiter(void 0, void 0, void 0, function () {
var jsxCode, transpiled, tmpFilename, module, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
jsxCode = fs.readFileSync(filepath, "utf8");
transpiled = typescript.transpileModule(jsxCode, {
compilerOptions: {
jsx: typescript.JsxEmit.React,
module: typescript.ModuleKind.NodeNext,
},
}).outputText;
tmpFilename = path.join(os.tmpdir(), "tmp-gatsby-plugin-satorare-".concat(node.id, ".js"));
fs.writeFileSync(tmpFilename, transpiled);
return [4 /*yield*/, import(tmpFilename)];
case 1:
module = _b.sent();
_a = global;
return [4 /*yield*/, import("react")];
case 2:
_a.React = _b.sent();
return [2 /*return*/, module.default.default(node)];
}
});
}); };
var getOgImage = function (node, fonts, option, cache) { return __awaiter(void 0, void 0, void 0, function () {
var imageCache, image;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, cache.get(ogImageCacheKey(node))];
case 1:
imageCache = _a.sent();
if (imageCache) {
return [2 /*return*/, Buffer.from(imageCache.data)];
}
return [4 /*yield*/, generateOGImage(node, fonts, option)];
case 2:
image = _a.sent();
return [4 /*yield*/, cache.set(ogImageCacheKey(node), image)];
case 3:
_a.sent();
return [2 /*return*/, image];
}
});
}); };
export var createSchemaCustomization = function (_a, userOption) {
var actions = _a.actions;
var option = __assign(__assign({}, defaultOption), userOption);
for (var _i = 0, _b = option.target_nodes; _i < _b.length; _i++) {
var targetNode = _b[_i];
actions.createTypes("\n type ".concat(targetNode, "OgImage implements Node {\n attributes: File\n }\n "));
}
};
export var onPostBootstrap = function (_a, userOption_1) { return __awaiter(void 0, [_a, userOption_1], void 0, function (_b, userOption) {
var activity, option, fonts, tasks, _loop_1, _i, _c, targetNode;
var actions = _b.actions, cache = _b.cache, reporter = _b.reporter, parentSpan = _b.parentSpan, getNodesByType = _b.getNodesByType, createNodeId = _b.createNodeId;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
if (userOption.path === undefined)
reporter.panic("[gatsby-plugin-satorare] `path` config is required.");
activity = reporter.activityTimer("generate og images", { parentSpan: parentSpan });
activity.start();
option = __assign(__assign({}, defaultOption), userOption);
fonts = option.fonts.map(function (font) {
return {
name: font.name,
data: fs.readFileSync(font.path),
weight: font.weight,
style: font.style,
lang: font.lang,
};
});
tasks = [];
_loop_1 = function (targetNode) {
var nodes = getNodesByType(targetNode);
var _loop_2 = function (node) {
tasks.push(function () { return __awaiter(void 0, void 0, void 0, function () {
var image, fileNode, digest;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, getOgImage(node, fonts, option, cache)];
case 1:
image = _a.sent();
return [4 /*yield*/, createFileNodeFromBuffer(__assign(__assign({ buffer: image, cache: cache, createNodeId: createNodeId }, actions), { ext: ".png", parentNodeId: node.id }))];
case 2:
fileNode = _a.sent();
digest = "".concat(node.id, " >>> ").concat(targetNode, "OgImage");
return [4 /*yield*/, actions.createNode({
id: createNodeId(digest),
parent: node.id,
internal: {
type: "".concat(targetNode, "OgImage"),
contentDigest: digest,
},
attributes: fileNode,
})];
case 3:
_a.sent();
return [2 /*return*/];
}
});
}); });
};
for (var _e = 0, nodes_1 = nodes; _e < nodes_1.length; _e++) {
var node = nodes_1[_e];
_loop_2(node);
}
};
for (_i = 0, _c = option.target_nodes; _i < _c.length; _i++) {
targetNode = _c[_i];
_loop_1(targetNode);
}
return [4 /*yield*/, Promise.all(tasks.map(function (task) { return task(); }))];
case 1:
_d.sent();
activity.end();
return [2 /*return*/];
}
});
}); };