private async queryLocal()

in src/vs/workbench/contrib/extensions/browser/extensionsViews.ts [265:419]
132 lines of code
71 McCabe index (conditional complexity)

	private async queryLocal(query: Query, options: IQueryOptions): Promise<IPagedModel<IExtension>> {
		let value = query.value;
		if (/@builtin/i.test(value)) {
			const showThemesOnly = /@builtin:themes/i.test(value);
			if (showThemesOnly) {
				value = value.replace(/@builtin:themes/g, '');
			}
			const showBasicsOnly = /@builtin:basics/i.test(value);
			if (showBasicsOnly) {
				value = value.replace(/@builtin:basics/g, '');
			}
			const showFeaturesOnly = /@builtin:features/i.test(value);
			if (showFeaturesOnly) {
				value = value.replace(/@builtin:features/g, '');
			}

			value = value.replace(/@builtin/g, '').replace(/@sort:(\w+)(-\w*)?/g, '').trim().toLowerCase();
			let result = await this.extensionsWorkbenchService.queryLocal(this.server);

			result = result
				.filter(e => e.type === ExtensionType.System && (e.name.toLowerCase().indexOf(value) > -1 || e.displayName.toLowerCase().indexOf(value) > -1));

			if (showThemesOnly) {
				const themesExtensions = result.filter(e => {
					return e.local
						&& e.local.manifest
						&& e.local.manifest.contributes
						&& Array.isArray(e.local.manifest.contributes.themes)
						&& e.local.manifest.contributes.themes.length;
				});
				return this.getPagedModel(this.sortExtensions(themesExtensions, options));
			}
			if (showBasicsOnly) {
				const basics = result.filter(e => {
					return e.local && e.local.manifest
						&& e.local.manifest.contributes
						&& Array.isArray(e.local.manifest.contributes.grammars)
						&& e.local.manifest.contributes.grammars.length
						&& e.local.identifier.id !== 'vscode.git';
				});
				return this.getPagedModel(this.sortExtensions(basics, options));
			}
			if (showFeaturesOnly) {
				const others = result.filter(e => {
					return e.local
						&& e.local.manifest
						&& e.local.manifest.contributes
						&& (!Array.isArray(e.local.manifest.contributes.grammars) || e.local.identifier.id === 'vscode.git')
						&& !Array.isArray(e.local.manifest.contributes.themes);
				});
				return this.getPagedModel(this.sortExtensions(others, options));
			}

			return this.getPagedModel(this.sortExtensions(result, options));
		}

		const categories: string[] = [];
		value = value.replace(/\bcategory:("([^"]*)"|([^"]\S*))(\s+|\b|$)/g, (_, quotedCategory, category) => {
			const entry = (category || quotedCategory || '').toLowerCase();
			if (categories.indexOf(entry) === -1) {
				categories.push(entry);
			}
			return '';
		});

		if (/@installed/i.test(value)) {
			// Show installed extensions
			value = value.replace(/@installed/g, '').replace(/@sort:(\w+)(-\w*)?/g, '').trim().toLowerCase();

			let result = await this.extensionsWorkbenchService.queryLocal(this.server);

			result = result
				.filter(e => e.type === ExtensionType.User
					&& (e.name.toLowerCase().indexOf(value) > -1 || e.displayName.toLowerCase().indexOf(value) > -1)
					&& (!categories.length || categories.some(category => (e.local && e.local.manifest.categories || []).some(c => c.toLowerCase() === category))));

			if (options.sortBy !== undefined) {
				result = this.sortExtensions(result, options);
			} else {
				const runningExtensions = await this.extensionService.getExtensions();
				const runningExtensionsById = runningExtensions.reduce((result, e) => { result.set(ExtensionIdentifier.toKey(e.identifier.value), e); return result; }, new Map<string, IExtensionDescription>());
				result = result.sort((e1, e2) => {
					const running1 = runningExtensionsById.get(ExtensionIdentifier.toKey(e1.identifier.id));
					const isE1Running = running1 && this.extensionManagementServerService.getExtensionManagementServer(running1.extensionLocation) === e1.server;
					const running2 = runningExtensionsById.get(ExtensionIdentifier.toKey(e2.identifier.id));
					const isE2Running = running2 && this.extensionManagementServerService.getExtensionManagementServer(running2.extensionLocation) === e2.server;
					if ((isE1Running && isE2Running)) {
						return e1.displayName.localeCompare(e2.displayName);
					}
					const isE1LanguagePackExtension = e1.local && isLanguagePackExtension(e1.local.manifest);
					const isE2LanguagePackExtension = e2.local && isLanguagePackExtension(e2.local.manifest);
					if (!isE1Running && !isE2Running) {
						if (isE1LanguagePackExtension) {
							return -1;
						}
						if (isE2LanguagePackExtension) {
							return 1;
						}
						return e1.displayName.localeCompare(e2.displayName);
					}
					if ((isE1Running && isE2LanguagePackExtension) || (isE2Running && isE1LanguagePackExtension)) {
						return e1.displayName.localeCompare(e2.displayName);
					}
					return isE1Running ? -1 : 1;
				});
			}
			return this.getPagedModel(result);
		}


		if (/@outdated/i.test(value)) {
			value = value.replace(/@outdated/g, '').replace(/@sort:(\w+)(-\w*)?/g, '').trim().toLowerCase();

			const local = await this.extensionsWorkbenchService.queryLocal(this.server);
			const result = local
				.sort((e1, e2) => e1.displayName.localeCompare(e2.displayName))
				.filter(extension => extension.outdated
					&& (extension.name.toLowerCase().indexOf(value) > -1 || extension.displayName.toLowerCase().indexOf(value) > -1)
					&& (!categories.length || categories.some(category => !!extension.local && extension.local.manifest.categories!.some(c => c.toLowerCase() === category))));

			return this.getPagedModel(this.sortExtensions(result, options));
		}

		if (/@disabled/i.test(value)) {
			value = value.replace(/@disabled/g, '').replace(/@sort:(\w+)(-\w*)?/g, '').trim().toLowerCase();

			const local = await this.extensionsWorkbenchService.queryLocal(this.server);
			const runningExtensions = await this.extensionService.getExtensions();

			const result = local
				.sort((e1, e2) => e1.displayName.localeCompare(e2.displayName))
				.filter(e => runningExtensions.every(r => !areSameExtensions({ id: r.identifier.value, uuid: r.uuid }, e.identifier))
					&& (e.name.toLowerCase().indexOf(value) > -1 || e.displayName.toLowerCase().indexOf(value) > -1)
					&& (!categories.length || categories.some(category => (e.local && e.local.manifest.categories || []).some(c => c.toLowerCase() === category))));

			return this.getPagedModel(this.sortExtensions(result, options));
		}

		if (/@enabled/i.test(value)) {
			value = value ? value.replace(/@enabled/g, '').replace(/@sort:(\w+)(-\w*)?/g, '').trim().toLowerCase() : '';

			const local = (await this.extensionsWorkbenchService.queryLocal(this.server)).filter(e => e.type === ExtensionType.User);
			const runningExtensions = await this.extensionService.getExtensions();

			const result = local
				.sort((e1, e2) => e1.displayName.localeCompare(e2.displayName))
				.filter(e => runningExtensions.some(r => areSameExtensions({ id: r.identifier.value, uuid: r.uuid }, e.identifier))
					&& (e.name.toLowerCase().indexOf(value) > -1 || e.displayName.toLowerCase().indexOf(value) > -1)
					&& (!categories.length || categories.some(category => (e.local && e.local.manifest.categories || []).some(c => c.toLowerCase() === category))));

			return this.getPagedModel(this.sortExtensions(result, options));
		}

		return new PagedModel([]);
	}