vite-plugin-esi/dist/index.js

Vite plugin to resolve ESI with [nodesi](https://www.npmjs.com/package/nodesi).

var __async = (__this, __arguments, generator) => {
  return new Promise((resolve, reject) => {
    var fulfilled = (value) => {
      try {
        step(generator.next(value));
      } catch (e) {
        reject(e);
      }
    };
    var rejected = (value) => {
      try {
        step(generator.throw(value));
      } catch (e) {
        reject(e);
      }
    };
    var step = (x) => x.done ? resolve(x.value) : Promise.resolve(x.value).then(fulfilled, rejected);
    step((generator = generator.apply(__this, __arguments)).next());
  });
};

// src/transform.ts
import ESI from "nodesi";

// src/errors.ts
var TagsNotFoundError = class extends Error {
  constructor(message) {
    super(message);
    this.name = "TagsNotFoundError";
  }
};

// src/transform.ts
function transformHtml(html, options) {
  const regex = new RegExp('<!--*\\s*vite-plugin-esi\\s(name="(?<name>[a-zA-Z0-9]+)").*->', "g");
  return html.replace(regex, (_match, _, __, ___, ____, groups) => {
    const tags = options[groups.name];
    if (!tags) {
      throw new TagsNotFoundError(`no tags found for ${groups.name}`);
    }
    return tags.map((tag) => {
      const { src, type = "include", onError = "abort" } = tag;
      return `<esi:${type} src="${src}" onerror="${onError}" />`;
    }).join("\n");
  });
}
function resolveESI(html, options) {
  return __async(this, null, function* () {
    const esi = new ESI(options == null ? void 0 : options.nodeEsi);
    const resolvedHtml = yield esi.process(html, { headers: options == null ? void 0 : options.headers });
    return resolvedHtml;
  });
}

// src/index.ts
function esiPlugin(options) {
  var _a;
  const shouldResolveESI = (_a = options.resolveESI) != null ? _a : true;
  return {
    name: "vite-plugin-esi",
    transformIndexHtml(inputHtml) {
      const html = transformHtml(inputHtml, options.esi);
      if (shouldResolveESI) {
        return resolveESI(html);
      }
    }
  };
}
export {
  esiPlugin as default
};