add build script

tools/build.js

@@ -0,0 +1,63 @@
+const MUI = require('@nsis/mui-language-strings');
+const NLF = require('@nsis/nlf');
+const fs = require('fs');
+const globby = require('globby');
+const rimraf = require('rimraf');
+const sortKeys = require('sort-keys');
+const { basename, extname, join } = require('path');
+const { nsisDir } = require('makensis');
+const { promisify } = require('util');
+
+const readFile = promisify(fs.readFile);
+const writeFile = promisify(fs.writeFile);
+const rimrafAsync = promisify(rimraf);
+const mkdir = promisify(fs.mkdir);
+
+(async () => {
+  try {
+    await rimrafAsync('./data');
+    await mkdir('./data');
+    await mkdir('./data/languages');
+  } catch(e) {
+    throw new Error(e);
+  }
+
+  const output = {};
+  const languageDir = join(await nsisDir(), 'Contrib', 'Language files');
+  let languageFiles = await globby(`${languageDir}/*.nlf`);
+
+  languageFiles = languageFiles.sort();
+
+   for (languageFile of languageFiles) {
+    const langExtname = extname(languageFile);
+    const langBasename = basename(languageFile, langExtname);
+
+    const nlfFile = await readFile(`${languageDir}/${langBasename}.nlf`, 'utf8');
+    const nlfContent = NLF.parse(nlfFile);
+
+
+    const nshFile = await readFile(`${languageDir}/${langBasename}.nsh`, 'utf8');
+    const nshContent = await MUI.parse(nshFile, { looseQuotes: true });
+
+    output[nshContent.file] = {
+      id: nlfContent.id,
+      code_page: nlfContent.codepage,
+      rtl: nlfContent.rtl,
+      english: nshContent.english,
+      native: nshContent.native,
+      native_ascii: nshContent.nativeASCII,
+    };
+
+    try {
+      await writeFile(`data/languages/${nshContent.file}.json`, JSON.stringify(nlfContent, null, 2), 'utf8');
+    } catch (e) {
+      throw new Error(e);
+    }
+  }
+
+  try {
+    await writeFile(`data/languages/${nshContent.file}.json`, JSON.stringify(nlfContent, null, 2), 'utf8');
+  } catch (e) {
+    await writeFile('data/meta.json', JSON.stringify(output, null, 2), 'utf8');
+  }
+})();