change: Use @css: instead of $PACKAGE_ROOT/

This makes usage from the command line easier,
since $ is typically used to mark variables.

README.md

@@ -36,15 +36,23 @@ you can run a [Docker](https://www.docker.com/) version instead.
 
 ### 💻 Installing and running locally
 After installing Node.js,
-you can install and run the latest published version
+install the latest server version
-from the [npm package repository](https://www.npmjs.com/)
+from the [npm package repository](https://www.npmjs.com/):
-like this:
 
 ```shell
 npm install -g @solid/community-server
+```
+
+To run the server with in-memory storage, use:
+```shell
 community-solid-server # add parameters if needed
 ```
 
+To run the server with your current folder as storage, use:
+```shell
+community-solid-server -c @css:config/file.json
+```
+
 ### 📃 Installing and running from source
 If you rather prefer to run the latest source code version,
 or if you want to try a specific [branch](https://www.npmjs.com/) of the code,
@@ -85,11 +93,11 @@ These parameters give you direct access
 to some commonly used settings:
 
 | parameter name         | default value              | description                                                                                                                          |
-| ---------              | -------                   | -----------                                                                                                                     |
+| --------------         | -------------              | -----------                                                                                                                          |
 | `--port, -p`           | `3000`                     | The TCP port on which the server runs.                                                                                               |
 | `--baseUrl. -b`        | `http://localhost:$PORT/`  | The public URL of your server.                                                                                                       |
 | `--loggingLevel, -l`   | `info`                     | The detail level of logging; useful for debugging problems.                                                                          |
-| `--config, -c`         | `config/default.json`     | The configuration for the server. The default only stores data in memory; to persist to your filesystem, try `config/file.json` |
+| `--config, -c`         | `@css:config/default.json` | The configuration for the server. The default only stores data in memory; to persist to your filesystem, use `@css:config/file.json` |
 | `--rootFilePath, -f`   | `./`                       | Root folder of the server, when using a file-based configuration.                                                                    |
 | `--sparqlEndpoint, -s` |                            | URL of the SPARQL endpoint, when using a quadstore-based configuration.                                                              |
 | `--showStackTrace, -t` | false                      | Enables detailed logging on error pages.                                                                                             |

config/app/init/initializers/root.json

@@ -9,7 +9,7 @@
       "store": { "@id": "urn:solid-server:default:ResourceStore" },
       "generator": {
         "@type": "TemplatedResourcesGenerator",
-        "templateFolder": "$PACKAGE_ROOT/templates/root",
+        "templateFolder": "@css:templates/root",
         "factory": { "@type": "ExtensionBasedMapperFactory" },
         "templateEngine": { "@type": "HandlebarsTemplateEngine" }
       }

config/http/static/default.json

@@ -9,19 +9,19 @@
       "assets": [
         {
           "StaticAssetHandler:_assets_key": "/favicon.ico",
-          "StaticAssetHandler:_assets_value": "$PACKAGE_ROOT/templates/images/favicon.ico"
+          "StaticAssetHandler:_assets_value": "@css:templates/images/favicon.ico"
         },
         {
           "StaticAssetHandler:_assets_key": "/.well_known/css/styles/",
-          "StaticAssetHandler:_assets_value": "$PACKAGE_ROOT/templates/styles/"
+          "StaticAssetHandler:_assets_value": "@css:templates/styles/"
         },
         {
           "StaticAssetHandler:_assets_key": "/.well_known/css/fonts/",
-          "StaticAssetHandler:_assets_value": "$PACKAGE_ROOT/templates/fonts/"
+          "StaticAssetHandler:_assets_value": "@css:templates/fonts/"
         },
         {
           "StaticAssetHandler:_assets_key": "/.well_known/css/images/",
-          "StaticAssetHandler:_assets_value": "$PACKAGE_ROOT/templates/images/"
+          "StaticAssetHandler:_assets_value": "@css:templates/images/"
         }
       ]
     }

config/identity/handler/default.json

@@ -35,7 +35,7 @@
             {
               "comment": "Will embed the result of the first engine into the main HTML template.",
               "@type": "EjsTemplateEngine",
-              "template": "$PACKAGE_ROOT/templates/main.html.ejs",
+              "template": "@css:templates/main.html.ejs",
             }
           ]
         }

config/identity/handler/interaction/routes/forgot-password.json

@@ -6,8 +6,8 @@
       "@id": "urn:solid-server:auth:password:ForgotPasswordRoute",
       "@type": "InteractionRoute",
       "route": "^/forgotpassword/?$",
-      "viewTemplate": "$PACKAGE_ROOT/templates/identity/email-password/forgot-password.html.ejs",
+      "viewTemplate": "@css:templates/identity/email-password/forgot-password.html.ejs",
-      "responseTemplate": "$PACKAGE_ROOT/templates/identity/email-password/forgot-password-response.html.ejs",
+      "responseTemplate": "@css:templates/identity/email-password/forgot-password-response.html.ejs",
       "handler": {
         "@type": "ForgotPasswordHandler",
         "args_accountStore": { "@id": "urn:solid-server:auth:password:AccountStore" },
@@ -15,7 +15,7 @@
         "args_idpPath": "/idp",
         "args_templateEngine": {
           "@type": "EjsTemplateEngine",
-          "template": "$PACKAGE_ROOT/templates/identity/email-password/reset-password-email.html.ejs"
+          "template": "@css:templates/identity/email-password/reset-password-email.html.ejs"
         },
         "args_emailSender": { "@id": "urn:solid-server:default:EmailSender" }
       }

config/identity/handler/interaction/routes/login.json

@@ -7,7 +7,7 @@
       "@type": "InteractionRoute",
       "route": "^/login/?$",
       "prompt": "default",
-      "viewTemplate": "$PACKAGE_ROOT/templates/identity/email-password/login.html.ejs",
+      "viewTemplate": "@css:templates/identity/email-password/login.html.ejs",
       "handler": {
         "@type": "LoginHandler",
         "accountStore": { "@id": "urn:solid-server:auth:password:AccountStore" }

config/identity/handler/interaction/routes/reset-password.json

@@ -7,8 +7,8 @@
       "@id": "urn:solid-server:auth:password:ResetPasswordRoute",
       "@type": "InteractionRoute",
       "route": "^/resetpassword(/[^/]*)?$",
-      "viewTemplate": "$PACKAGE_ROOT/templates/identity/email-password/reset-password.html.ejs",
+      "viewTemplate": "@css:templates/identity/email-password/reset-password.html.ejs",
-      "responseTemplate": "$PACKAGE_ROOT/templates/identity/email-password/reset-password-response.html.ejs",
+      "responseTemplate": "@css:templates/identity/email-password/reset-password-response.html.ejs",
       "handler": {
         "@type": "ResetPasswordHandler",
         "accountStore": { "@id": "urn:solid-server:auth:password:AccountStore" }

config/identity/handler/interaction/routes/session.json

@@ -7,7 +7,7 @@
       "@type": "InteractionRoute",
       "route": "^/confirm/?$",
       "prompt": "consent",
-      "viewTemplate": "$PACKAGE_ROOT/templates/identity/email-password/confirm.html.ejs",
+      "viewTemplate": "@css:templates/identity/email-password/confirm.html.ejs",
       "handler": {
         "@type": "SessionHttpHandler",
         "providerFactory": { "@id": "urn:solid-server:default:IdentityProviderFactory" }

config/identity/pod/resource-generators/templated.json

@@ -5,7 +5,7 @@
       "comment": "Generates resources based on the templates stored in the template folder.",
       "@id": "urn:solid-server:default:ResourcesGenerator",
       "@type": "TemplatedResourcesGenerator",
-      "templateFolder": "$PACKAGE_ROOT/templates/pod",
+      "templateFolder": "@css:templates/pod",
       "factory": {
         "@type": "ExtensionBasedMapperFactory"
       },

config/identity/registration/route/registration.json

@@ -6,8 +6,8 @@
       "@id": "urn:solid-server:auth:password:RegistrationRoute",
       "@type": "InteractionRoute",
       "route": "^/register/?$",
-      "viewTemplate": "$PACKAGE_ROOT/templates/identity/email-password/register.html.ejs",
+      "viewTemplate": "@css:templates/identity/email-password/register.html.ejs",
-      "responseTemplate": "$PACKAGE_ROOT/templates/identity/email-password/register-response.html.ejs",
+      "responseTemplate": "@css:templates/identity/email-password/register-response.html.ejs",
       "handler": {
         "@type": "RegistrationHandler",
         "args_baseUrl": { "@id": "urn:solid-server:default:variable:baseUrl" },

config/util/representation-conversion/converters/markdown.json

@@ -12,7 +12,7 @@
       "@type": "MarkdownToHtmlConverter",
       "templateEngine": {
         "@type": "EjsTemplateEngine",
-        "template": "$PACKAGE_ROOT/templates/main.html.ejs"
+        "template": "@css:templates/main.html.ejs"
       }
     },
     {
@@ -21,7 +21,7 @@
       "@type": "ContainerToTemplateConverter",
       "templateEngine": {
         "@type": "HandlebarsTemplateEngine",
-        "template": "$PACKAGE_ROOT/templates/container.md.hbs"
+        "template": "@css:templates/container.md.hbs"
       },
       "contentType": "text/markdown",
       "identifierStrategy": { "@id": "urn:solid-server:default:IdentifierStrategy" }

src/init/AppRunner.ts

@@ -5,9 +5,11 @@ import type { IComponentsManagerBuilderOptions, LogLevel } from 'componentsjs';
 import { ComponentsManager } from 'componentsjs';
 import yargs from 'yargs';
 import { getLoggerFor } from '../logging/LogUtil';
-import { ensureTrailingSlash, resolveAssetPath } from '../util/PathUtil';
+import { ensureTrailingSlash, resolveAssetPath, modulePathPlaceholder } from '../util/PathUtil';
 import type { App } from './App';
 
+const defaultConfig = `${modulePathPlaceholder}config/default.json`;
+
 export interface CliParams {
   loggingLevel: string;
   port: number;
@@ -72,7 +74,7 @@ export class AppRunner {
       })
       .options({
         baseUrl: { type: 'string', alias: 'b', requiresArg: true },
-        config: { type: 'string', alias: 'c', requiresArg: true },
+        config: { type: 'string', alias: 'c', default: defaultConfig, requiresArg: true },
         loggingLevel: { type: 'string', alias: 'l', default: 'info', requiresArg: true },
         mainModulePath: { type: 'string', alias: 'm', requiresArg: true },
         port: { type: 'number', alias: 'p', default: 3000, requiresArg: true },
@@ -89,7 +91,7 @@ export class AppRunner {
       dumpErrorState: true,
       logLevel: params.loggingLevel as LogLevel,
     };
-    const configFile = resolveAssetPath(params.config ?? '$PACKAGE_ROOT/config/default.json');
+    const configFile = resolveAssetPath(params.config);
 
     // Create and execute the app
     this.createApp(loaderProperties, configFile, params)

src/pods/generate/TemplatedResourcesGenerator.ts

@@ -29,7 +29,7 @@ interface TemplateResourceLink extends ResourceLink {
  * A FileIdentifierMapper will be used to generate identifiers that correspond to the relative structure.
  *
  * A relative `templateFolder` is resolved relative to cwd,
- * unless it's preceded by $PACKAGE_ROOT/, e.g. $PACKAGE_ROOT/foo/bar.
+ * unless it's preceded by `@css:`, e.g. `@css:foo/bar`.
  */
 export class TemplatedResourcesGenerator implements ResourcesGenerator {
   private readonly templateFolder: string;

src/server/middleware/StaticAssetHandler.ts

@@ -14,7 +14,7 @@ import type { HttpRequest } from '../HttpRequest';
 /**
  * Handler that serves static resources on specific paths.
  * Relative file paths are assumed to be relative to cwd.
- * Relative file paths can be preceded by $PACKAGE_ROOT/, e.g. $PACKAGE_ROOT/foo/bar,
+ * Relative file paths can be preceded by `@css:`, e.g. `@css:foo/bar`,
  * in case they need to be relative to the module root.
  */
 export class StaticAssetHandler extends HttpHandler {

src/storage/conversion/ErrorToTemplateConverter.ts

@@ -5,6 +5,7 @@ import type { Representation } from '../../ldp/representation/Representation';
 import { INTERNAL_ERROR } from '../../util/ContentTypes';
 import { HttpError } from '../../util/errors/HttpError';
 import { InternalServerError } from '../../util/errors/InternalServerError';
+import { modulePathPlaceholder } from '../../util/PathUtil';
 import type { TemplateEngine } from '../../util/templates/TemplateEngine';
 import type { RepresentationConverterArgs } from './RepresentationConverter';
 import { TypedRepresentationConverter } from './TypedRepresentationConverter';
@@ -18,8 +19,8 @@ export interface TemplateOptions {
 }
 
 const DEFAULT_TEMPLATE_OPTIONS: TemplateOptions = {
-  mainTemplatePath: '$PACKAGE_ROOT/templates/error/main.md.hbs',
+  mainTemplatePath: `${modulePathPlaceholder}templates/error/main.md.hbs`,
-  codeTemplatesPath: '$PACKAGE_ROOT/templates/error/descriptions/',
+  codeTemplatesPath: `${modulePathPlaceholder}templates/error/descriptions/`,
   extension: '.md.hbs',
   contentType: 'text/markdown',
 };

src/util/PathUtil.ts

@@ -173,16 +173,20 @@ export function getModuleRoot(): string {
   return joinFilePath(__dirname, '../../');
 }
 
-const modulePath = '$PACKAGE_ROOT/';
+/**
+ * A placeholder for the path to the `@solid/community-server` module root.
+ * The resolveAssetPath function will replace this string with the actual path.
+ */
+export const modulePathPlaceholder = '@css:';
 
 /**
  * Converts file path inputs into absolute paths.
- * Works similar to `absoluteFilePath` but paths that start with '$PACKAGE_ROOT/'
+ * Works similar to `absoluteFilePath` but paths that start with the `modulePathPlaceholder`
  * will be relative to the module directory instead of the cwd.
  */
-export function resolveAssetPath(path: string = modulePath): string {
+export function resolveAssetPath(path: string = modulePathPlaceholder): string {
-  if (path.startsWith(modulePath)) {
+  if (path.startsWith(modulePathPlaceholder)) {
-    return joinFilePath(getModuleRoot(), path.slice(modulePath.length));
+    return joinFilePath(getModuleRoot(), path.slice(modulePathPlaceholder.length));
   }
   return absoluteFilePath(path);
 }

test/unit/init/AppRunner.test.ts

@@ -211,7 +211,7 @@ describe('AppRunner', (): void => {
       new AppRunner().runCli({
         argv: [
           'node', 'script',
-          '--config', '$PACKAGE_ROOT/config/file.json',
+          '--config', '@css:config/file.json',
         ],
       });
       await new Promise(setImmediate);

test/unit/server/middleware/StaticAssetHandler.test.ts

@@ -16,7 +16,7 @@ describe('A StaticAssetHandler', (): void => {
     '/foo/bar/main': '/assets/scripts/bar.js',
     '/foo/bar/unknown': '/assets/bar.unknown',
     '/foo/bar/cwd': 'paths/cwd.txt',
-    '/foo/bar/module': '$PACKAGE_ROOT/paths/module.txt',
+    '/foo/bar/module': '@css:paths/module.txt',
     '/foo/bar/folder1/': '/assets/folders/1/',
     '/foo/bar/folder2/': '/assets/folders/2',
     '/foo/bar/folder2/subfolder/': '/assets/folders/3',

test/unit/storage/conversion/ErrorToTemplateConverter.test.ts

@@ -164,9 +164,9 @@ describe('An ErrorToTemplateConverter', (): void => {
     expect(templateEngine.render).toHaveBeenCalledTimes(2);
     expect(templateEngine.render).toHaveBeenNthCalledWith(1,
       { key: 'val' },
-      { templatePath: '$PACKAGE_ROOT/templates/error/descriptions/', templateFile: 'E0001.md.hbs' });
+      { templatePath: '@css:templates/error/descriptions/', templateFile: 'E0001.md.hbs' });
     expect(templateEngine.render).toHaveBeenNthCalledWith(2,
       { name: 'BadRequestHttpError', message: 'error text', stack: error.stack, description: '<html>' },
-      { templateFile: '$PACKAGE_ROOT/templates/error/main.md.hbs' });
+      { templateFile: '@css:templates/error/main.md.hbs' });
   });
 });

test/unit/util/PathUtil.test.ts

@@ -141,12 +141,12 @@ describe('PathUtil', (): void => {
   });
 
   describe('#resolvePathInput', (): void => {
-    it('interprets paths relative to the module root when starting with $PACKAGE_ROOT/.', async(): Promise<void> => {
+    it('interprets paths relative to the module root when starting with @css:.', async(): Promise<void> => {
-      expect(resolveAssetPath('$PACKAGE_ROOT/foo/bar')).toBe(joinFilePath(getModuleRoot(), '/foo/bar'));
+      expect(resolveAssetPath('@css:foo/bar')).toBe(joinFilePath(getModuleRoot(), '/foo/bar'));
     });
 
-    it('handles ../ paths with $PACKAGE_ROOT/.', async(): Promise<void> => {
+    it('handles ../ paths with @css:.', async(): Promise<void> => {
-      expect(resolveAssetPath('$PACKAGE_ROOT/foo/bar/../baz')).toBe(joinFilePath(getModuleRoot(), '/foo/baz'));
+      expect(resolveAssetPath('@css:foo/bar/../baz')).toBe(joinFilePath(getModuleRoot(), '/foo/baz'));
     });
 
     it('leaves absolute paths as they are.', async(): Promise<void> => {