Allow the escaping of variables.

This results in two important changes:

- Made changes so that we actually use the replacement regex groups.
This was supposed to happen from the start but I guess I didn't notice.
By fixing this the code for finding dependencies and the cache#parse is
now a bit more reliable.

- This also changes how we store variables in the cache (which I've been
meaning to do for a while.) removing the dollar sign that usually
preceeded all cached requests in Beau. It's all more sensible now.

There's more refactoring left to do.

src/__tests__/__snapshots__/beau.spec.js.snap

@@ -97,7 +97,7 @@ Beau {
     ],
     "cache": RequestCache {
       "$cache": Object {
-        "$env": Object {},
+        "env": Object {},
       },
     },
     "config": Config {

src/__tests__/__snapshots__/requestList.spec.js.snap

@@ -18,3 +18,26 @@ Object {
   },
 }
 `;
+
+exports[`RequestList should fetch dependencies 1`] = `
+RequestCache {
+  "$cache": Object {
+    "env": Object {
+      "environmental": true,
+    },
+    "get-posts": Object {
+      "body": "{\\"hello\\": \\"world\\"}",
+      "request": Object {
+        "body": undefined,
+        "endpoint": "http://martianwabbit.com/post",
+        "headers": undefined,
+      },
+      "response": Object {
+        "body": "{\\"hello\\": \\"world\\"}",
+        "headers": Array [],
+        "status": 200,
+      },
+    },
+  },
+}
+`;

src/__tests__/plugins.spec.js

@@ -74,7 +74,7 @@ describe(`Beau's plugin system`, () => {
 
         it(`should look for dynamic values executing and replacing them`, async () => {
             let cache = new RequestCache();
-            cache.add('$value2', '2');
+            cache.add('value2', '2');
 
             let req = await request.exec(cache);
 

src/__tests__/request.spec.js

@@ -32,8 +32,8 @@ describe('Request', () => {
 		};
 
 		cache = new RequestCache();
-		cache.add('$session', { token: 'abc123' });
-		cache.add('$profile', { UserId: 14 });
+		cache.add('session', { token: 'abc123' });
+		cache.add('profile', { UserId: 14 });
 
 		request = new Request(validRequestConfig);
 		requestWithoutDependencies = new Request({

src/__tests__/requestCache.spec.js

@@ -6,11 +6,11 @@ describe('Request Cache', () => {
 	beforeEach(() => {
 		cache = new RequestCache();
 
-		cache.add('$session', {
+		cache.add('session', {
 			hello: 'World'
 		});
 
-		cache.add('$array', [
+		cache.add('array', [
 			{
 				id: 1,
 				name: 'Sergio'
@@ -23,12 +23,12 @@ describe('Request Cache', () => {
 	});
 
 	it('should add keys to the cache', () => {
-		expect(cache.$cache.$session.hello).toBe('World');
+		expect(cache.$cache.session.hello).toBe('World');
 	});
 
 	describe('get', () => {
 		it('should be able to find key values with a given path', () => {
-			expect(cache.get('$session.hello')).toBe('World');
+			expect(cache.get('session.hello')).toBe('World');
 		});
 
 		it('should throw when given an invalid path', () => {
@@ -79,5 +79,11 @@ describe('Request Cache', () => {
 		it('should return null when passed null', () => {
 			expect(cache.parse(null)).toBe(null);
 		});
+
+		it(`shouldn't replace escaped variables`, () => {
+			expect(cache.parse(`\\$session.hello is $session.hello`)).toBe(
+				`$session.hello is World`
+			);
+		});
 	});
 });

src/__tests__/requestList.spec.js

@@ -39,8 +39,10 @@ describe('RequestList', () => {
 		expect(requests.list.length).toBe(2);
 	});
 
-	it('should fetch dependencies', () => {
-		requests.fetchDependencies(['get-posts']);
+	it('should fetch dependencies', async () => {
+		await expect(
+			requests.fetchDependencies(['get-posts'])
+		).resolves.toMatchSnapshot();
 	});
 
 	it('should execute requests by alias.', async () => {
@@ -54,7 +56,7 @@ describe('RequestList', () => {
 
 	it('should return a cached result if available', async () => {
 		const obj = { test: true };
-		requests.cache.add('$test', obj);
+		requests.cache.add('test', obj);
 		await expect(requests.execByAlias('test')).resolves.toBe(obj);
 	});
 

src/config.js

@@ -64,7 +64,7 @@ class Config {
 				let requestDefinitionIsString = typeof host[key] === 'string';
 				let originalRequest = requestDefinitionIsString
 					? { ALIAS: host[key] }
-					: deepMerge.all([host[key]]);
+					: host[key];
 
 				let request = UpperCaseKeys(originalRequest);
 

src/plugins.js

@@ -27,11 +27,11 @@ class Plugins {
 				throw new Error(`Plugin items should contain only one key.`);
 			}
 
-			name = Object.keys(plugin)[0];
+			name = keys[0];
 			settings = plugin[name];
 		}
 
-		plugin = requireg(`./beau-${toKebabCase(name)}`);
+		plugin = requireg(`beau-${toKebabCase(name)}`);
 		new plugin(this, settings);
 	}
 
@@ -45,22 +45,6 @@ class Plugins {
 		return result;
 	}
 
-	execPreRequestModifiers(request, originalRequest) {
-		return this.executeModifier(
-			'preRequestModifiers',
-			request,
-			originalRequest
-		);
-	}
-
-	execPostRequestModifiers(response, originalRequest) {
-		return this.executeModifier(
-			'postRequestModifiers',
-			response,
-			originalRequest
-		);
-	}
-
 	replaceDynamicValues(obj) {
 		return replaceInObject(obj, val => {
 			try {

src/request.js

@@ -62,8 +62,12 @@ class Request {
 					set = this.findDependencies(request[key], set);
 				});
 		} else if (type === 'string') {
-			const matches = request.match(replacementRegex) || [];
-			const deps = matches.map(m => m.split('.')[0].substring(1));
+			const matches = [];
+			request.replace(
+				replacementRegex,
+				(match, g1) => !match.startsWith('\\') && matches.push(g1)
+			);
+			const deps = matches.map(m => m.split('.')[0]);
 
 			return new Set([...set, ...deps]);
 		}
@@ -82,7 +86,8 @@ class Request {
 
 		settings = this.plugins.replaceDynamicValues(settings);
 
-		settings = this.plugins.execPreRequestModifiers(
+		settings = this.plugins.executeModifier(
+			'preRequestModifiers',
 			settings,
 			this.originalRequest
 		);
@@ -120,12 +125,13 @@ class Request {
 				body: response.body
 			};
 
-			results = this.plugins.execPostRequestModifiers(
+			results = this.plugins.executeModifier(
+				'postRequestModifiers',
 				results,
 				this.originalRequest
 			);
 
-			cache.add(`$${this.ALIAS}`, results);
+			cache.add(this.ALIAS, results);
 
 			return results;
 		} catch ({ error }) {

src/requestCache.js

@@ -16,13 +16,13 @@ class RequestCache {
 	get(path) {
 		let result = this.$cache;
 		path.split('.').forEach(part => {
-			result = result[part];
-		});
-
-		if (typeof result === 'undefined') {
+			if (result[part] === undefined) {
 				throw new Error(`${path} not found in cache: `, path);
 			}
 
+			result = result[part];
+		});
+
 		return result;
 	}
 
@@ -31,9 +31,15 @@ class RequestCache {
 			return null;
 		}
 
-		return replaceInObject(item, item =>
-			item.replace(replacementRegex, key => this.get(key))
-		);
+		return replaceInObject(item, item => {
+			return item.replace(replacementRegex, (match, key) => {
+				if (match.startsWith('\\')) {
+					return match.replace('\\$', '$');
+				}
+
+				return this.get(key);
+			});
+		});
 	}
 }
 

src/requestList.js

@@ -10,12 +10,12 @@ class RequestList {
 		this.list = this.loadRequests();
 		this.cache = new RequestCache();
 
-		this.cache.add(`$env`, this.config.ENVIRONMENT);
+		this.cache.add(`env`, this.config.ENVIRONMENT);
 	}
 
 	async execByAlias(alias) {
-		if (this.cache.exists(`$${alias}`)) {
-			return this.cache.get(`$${alias}`);
+		if (this.cache.exists(alias)) {
+			return this.cache.get(alias);
 		}
 
 		const request = this.list.find(r => r.ALIAS === alias);
@@ -26,8 +26,7 @@ class RequestList {
 
 		try {
 			await this.fetchDependencies(Array.from(request.DEPENDENCIES));
-			const response = await request.exec(this.cache);
-			return response;
+			return await request.exec(this.cache);
 		} catch (reason) {
 			throw new Error(
 				`Request: ${request.VERB} ${

src/shared.js

@@ -11,7 +11,7 @@ const httpVerbs = [
 ];
 
 const requestRegex = new RegExp(`(${httpVerbs.join('|')})\\s(.*)`, 'i');
-const replacementRegex = /\$([a-zA-Z\.\d\-\_\/\\\:]+)/g;
+const replacementRegex = /(?:\\?)\$([a-zA-Z\.\d\-\_\/\\\:]+)/g;
 const dynamicValueRegex = /\$\[(\w+\((?:.|[\n\r])+?\))\]/g;
 
 const UpperCaseKeys = function(obj) {