build/azure-pipelines/upload-nlsmetadata.ts/main
function main(): Promise<void> {
	return new Promise((c, e) => {

		es.merge(
			vfs.src('out-vscode-web-min/nls.metadata.json', { base: 'out-vscode-web-min' }),
			vfs.src('.build/extensions/**/nls.metadata.json', { base: '.build/extensions' }),
			vfs.src('.build/extensions/**/nls.metadata.header.json', { base: '.build/extensions' }),
			vfs.src('.build/extensions/**/package.nls.json', { base: '.build/extensions' }))
			.pipe(merge({
				fileName: 'combined.nls.metadata.json',
				jsonSpace: '',
				edit: (parsedJson, file) => {
					let key;
					if (file.base === 'out-vscode-web-min') {
						return { vscode: parsedJson };
					}

					// Handle extensions and follow the same structure as the Core nls file.
					switch (file.basename) {
						case 'package.nls.json':
							// put package.nls.json content in Core NlsMetadata format
							// language packs use the key "package" to specify that
							// translations are for the package.json file
							parsedJson = {
								messages: {
									package: Object.values(parsedJson)
								},
								keys: {
									package: Object.keys(parsedJson)
								},
								bundles: {
									main: ['package']
								}
							};
							break;

						case 'nls.metadata.header.json':
							parsedJson = { header: parsedJson };
							break;

						case 'nls.metadata.json': {
							// put nls.metadata.json content in Core NlsMetadata format
							const modules = Object.keys(parsedJson);

							const json: NlsMetadata = {
								keys: {},
								messages: {},
								bundles: {
									main: []
								}
							};
							for (const module of modules) {
								json.messages[module] = parsedJson[module].messages;
								json.keys[module] = parsedJson[module].keys;
								json.bundles.main.push(module);
							}
							parsedJson = json;
							break;
						}
					}
					key = 'vscode.' + file.relative.split('/')[0];
					return { [key]: parsedJson };
				},
			}))
			.pipe(gzip({ append: false }))
			.pipe(vfs.dest('./nlsMetadata'))
			.pipe(es.through(function (data: Vinyl) {
				console.log(`Uploading ${data.path}`);
				// trigger artifact upload
				console.log(`##vso[artifact.upload containerfolder=nlsmetadata;artifactname=combined.nls.metadata.json]${data.path}`);
				this.emit('data', data);
			}))
			.pipe(azure.upload({
				account: process.env.AZURE_STORAGE_ACCOUNT,
				credential,
				container: 'nlsmetadata',
				prefix: commit + '/',
				contentSettings: {
					contentEncoding: 'gzip',
					cacheControl: 'max-age=31536000, public'
				}
			}))
			.on('end', () => c())
			.on('error', (err: any) => e(err));
	});
}