pdfix-sdk/get_web_package.js

Take the full control over the PDF documents with PDFix SDK. Leverage the advantages of the PDFix SDK WebAssembly build for use in both Node.js and web applications

const fs = require('fs');

const sourcePathNode = './bin/node';
const sourcePathWeb = './bin/web';
const targetPath = (process.env.npm_config_path) ? process.env.npm_config_path : './dist/web';
const others = [
  {
    source: sourcePathNode + '/pdfix_wasm.d.ts',
    target: targetPath + '/pdfix_wasm.d.ts'
  },
  {
    source: './index.js',
    target: targetPath + '/index.js'
  },
  {
    source: './index.d.ts',
    target: targetPath + '/index.d.ts'
  }
];
const patchesForIndex = [
  {
    replace: 'const PDFIX_WASM = require("./bin/node/pdfix_wasm.js");',
    with: "import PDFIX_WASM from './pdfix_wasm';"
  },
  {
    replace: 'class Pdfix {',
    with: 'export class Pdfix {'
  },
  {
    replace: 'module.exports = Pdfix;',
    with: ''
  },
  {
    replace: 'const fs = require("fs");',
    with: '//const fs = require("fs");'
  },
  {
    replace: 'const buffer = new Uint8Array( fs.readFileSync(path, null).buffer );',
    with: '//const buffer = new Uint8Array( fs.readFileSync(path, null).buffer );'
  },
  {
    replace: 'return this.openDocumentFromBuffer(buffer);',
    with: '//return this.openDocumentFromBuffer(buffer);'
  }
];
const patchesForIndexDTs = [
  {
    replace: "declare module 'pdfix-sdk' {",
    with: ''
  },
  {
    replace: 'class Pdfix {',
    with: 'export class Pdfix {'
  },
  {
    replace: 'openDocumentFromPath(path: string): PdfDoc;',
    with: 'openDocumentFromPath(path: string): PdfDoc | undefined;'
  },
  {
    replace: 'export = Pdfix;',
    with: ''
  },
  {
    replace: '} // npm-end',
    with: ''
  }
];

function copy(source, destination) {
  console.log('Copying', source, 'to', destination);
  fs.writeFileSync(destination, fs.readFileSync(source));
}

function patch(file, patches) {
  console.log('Patching', file);
  const r = fs.readFileSync(file, 'utf-8');
  const lines = r.split('\n');
  let out = '';
  for (let line of lines) {
    for (let find of patches) {
      if (line.includes(find.replace)) {
        line = line.replace(find.replace, find.with);
      }
    }
    out += line;
  }
  fs.writeFileSync(file, out);
}

if (!fs.existsSync(targetPath)) {
  fs.mkdirSync(targetPath, { recursive: true });
  console.log('Folder created (or already exists):', targetPath);
}

const sourceFiles = fs.readdirSync(sourcePathWeb);
for (let file of sourceFiles) {
  copy(sourcePathWeb + '/' + file, targetPath + '/' + file);
}
for (let file of others) {
  copy(file.source, file.target);
}

patch(targetPath + '/index.js', patchesForIndex);
patch(targetPath + '/index.d.ts', patchesForIndexDTs);