add queryAll to query a whole reg key

.eslintrc.json

@@ -21,7 +21,14 @@
     "sourceType": "module",
     "warnOnUnsupportedTypeScriptVersion": true
   },
-  "ignorePatterns": ["/.cache", "/.git", "/.husky", "/.yarn", "/dist"],
+  "ignorePatterns": [
+    "/.cache",
+    "/.git",
+    "/.husky",
+    "/.yarn",
+    "/dist",
+    "/coverage"
+  ],
   "settings": {
     "import/resolver": {
       "typescript": {

.github/workflows/main.yml

@@ -49,6 +49,8 @@ jobs:
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.BOT_TOKEN }}
 
       - name: Install Node.js and Yarn
         uses: actions/setup-node@v3
@@ -65,6 +67,8 @@ jobs:
 
       - name: Bump version
         uses: 'phips28/gh-action-bump-version@master'
+        env:
+          GITHUB_TOKEN: ${{ secrets.BOT_TOKEN }}
         with:
           tag-prefix: 'v'
 

README.md

@@ -8,7 +8,7 @@ Access Windows registry with REG command line tool
 yarn add windows-reg
 ```
 
-### To Read a Registry Key Value
+### To Read a Single Registry Key Value
 
 ```typescript
 import { query } from 'windows-reg';
@@ -25,14 +25,58 @@ The example output would be
 
 ```javascript
 {
-  hive: 'HKEY_CURRENT_USER',
-  key: '\\Software\\Microsoft\\Windows\\CurrentVersion\\Run',
-  valueKey: 'OneDrive',
+  valueName: 'OneDrive',
   valueType: 'REG_SZ',
   value: '"C:\\Program Files\\Microsoft OneDrive\\OneDrive.exe" /background'
 }
 ```
 
+### To Read All Values under a Registry Key Recursively
+
+```typescript
+import { queryAll } from 'windows-reg';
+
+console.log(
+  await queryAll(
+    'HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run',
+    true,
+  ),
+);
+```
+
+The example output would be
+
+```javascript
+{
+  'HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run': [
+    {
+      valueName: 'OneDrive',
+      valueType: 'REG_SZ',
+      value: '"C:\\Program Files\\Microsoft OneDrive\\OneDrive.exe" /background'
+    },
+    {
+      valueName: 'Docker Desktop',
+      valueType: 'REG_SZ',
+      value: 'C:\\Program Files\\Docker\\Docker\\Docker Desktop.exe -Autostart'
+    },
+    ...
+  ],
+  'HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\ExampleSubKey': [
+    {
+      valueName: 'ExampleBinaryValue',
+      valueType: 'REG_BINARY',
+      value: <Buffer ad fa df ad fa df ad fa dc ae fa df ea e2 31 3f 23 23 e2 da fd af>
+    },
+    {
+      valueName: 'ExampleNumberValue',
+      valueType: 'REG_QWORD',
+      value: 1672226
+    },
+    ...
+  ],
+}
+```
+
 ## Developing
 
 ### Available Scripts

package.json

@@ -17,7 +17,6 @@
     "test": "node --no-warnings --experimental-vm-modules node_modules/jest/bin/jest.js"
   },
   "devDependencies": {
-    "@types/jest": "^29.5.2",
     "@types/node": "^20.3.1",
     "@typescript-eslint/eslint-plugin": "^5.58.0",
     "@typescript-eslint/parser": "^5.58.0",
@@ -71,7 +70,8 @@
       "src/**/*.ts",
       "src/**/*.mts",
       "!src/**/*.d.ts",
-      "!src/**/*.d.mts"
+      "!src/**/*.d.mts",
+      "!src/TestContext.ts"
     ]
   }
 }

src/TestContext.ts

@@ -0,0 +1,41 @@
+import { jest } from '@jest/globals';
+import { ExecException } from 'child_process';
+
+interface MockedCallbackArguments {
+  stdout?: string;
+  stderr?: string;
+  exception?: ExecException;
+}
+
+export class TestContext {
+  readonly execMock: jest.Mock;
+  private mockedCommands: Record<string, MockedCallbackArguments>;
+  constructor() {
+    this.execMock = jest
+      .fn()
+      .mockImplementation(
+        (
+          command: string,
+          _options: unknown,
+          cb: (e: ExecException | null, so: string, se: string) => void,
+        ) => {
+          if (this.mockedCommands[command]) {
+            cb(
+              this.mockedCommands[command].exception ?? null,
+              this.mockedCommands[command].stdout ?? '',
+              this.mockedCommands[command].stderr ?? '',
+            );
+          } else {
+            cb(new Error(`No mock for command: ${command}`), '', '');
+          }
+        },
+      );
+    this.mockedCommands = {};
+    jest.unstable_mockModule('node:child_process', () => ({
+      exec: this.execMock,
+    }));
+  }
+  mockCommand(command: string, args: MockedCallbackArguments) {
+    this.mockedCommands[command] = args;
+  }
+}

src/command.test.ts

@@ -1,4 +1,5 @@
-import { buildCommand } from './command.js';
+import { describe, expect, it } from '@jest/globals';
+import { RegCommand, buildCommand } from './command.js';
 
 describe('buildCommand', () => {
   it('allows to build command without any argument', () => {
@@ -21,3 +22,24 @@ describe('buildCommand', () => {
     );
   });
 });
+
+describe('RegCommand', () => {
+  it('builds REG query command', () => {
+    const key = 'mockKey';
+    const valueName = 'mockValueName';
+    const result = RegCommand.query(key, valueName);
+    expect(result).toMatch(new RegExp(`reg.*${key}.*${valueName}`, 'iu'));
+  });
+
+  it('builds REG query all command', () => {
+    const key = 'mockKey';
+
+    const resultNonRecursively = RegCommand.queryAll(key, false);
+    expect(resultNonRecursively).toMatch(new RegExp(`reg.*${key}`, 'iu'));
+    expect(resultNonRecursively).not.toMatch(/\/s/iu);
+
+    const resultRecursively = RegCommand.queryAll(key, true);
+    expect(resultRecursively).toMatch(new RegExp(`reg.*${key}`, 'iu'));
+    expect(resultRecursively).toMatch(/\/s/iu);
+  });
+});

src/command.ts

@@ -8,8 +8,11 @@ export function buildCommand(main: string, args?: string[]) {
 }
 
 export const RegCommand = {
-  query: (key: string, valueKey: string) =>
-    buildCommand('REG', ['QUERY', key, '/v', valueKey]),
+  query: (key: string, valueName: string) =>
+    buildCommand('REG', ['QUERY', key, '/v', valueName]),
+  queryAll: (key: string, recursively: boolean) =>
+    buildCommand('REG', ['QUERY', key, ...(recursively ? ['/s'] : [])]),
+
   delete: (key: string) => buildCommand('REG', ['DELETE', key, '/f']),
   export: (key: string, file: string) =>
     buildCommand('REG', ['EXPORT', key, file]),

src/execution.test.ts

@@ -1,42 +1,5 @@
-import { jest } from '@jest/globals';
-import { ExecException } from 'child_process';
-
-interface MockedCallbackArguments {
-  stdout?: string;
-  stderr?: string;
-  exception?: ExecException;
-}
-
-class TestContext {
-  readonly execMock: jest.Mock;
-  private mockedCommands: Record<string, MockedCallbackArguments>;
-  constructor() {
-    this.execMock = jest
-      .fn()
-      .mockImplementation(
-        (
-          command: string,
-          _options: unknown,
-          cb: (e: ExecException | null, so: string, se: string) => void,
-        ) => {
-          if (this.mockedCommands[command]) {
-            cb(
-              this.mockedCommands[command].exception ?? null,
-              this.mockedCommands[command].stdout ?? '',
-              this.mockedCommands[command].stderr ?? '',
-            );
-          }
-        },
-      );
-    this.mockedCommands = {};
-    jest.unstable_mockModule('node:child_process', () => ({
-      exec: this.execMock,
-    }));
-  }
-  mockCommand(command: string, args: MockedCallbackArguments) {
-    this.mockedCommands[command] = args;
-  }
-}
+import { describe, expect, it } from '@jest/globals';
+import { TestContext } from './TestContext.js';
 
 describe('execute', () => {
   const tc = new TestContext();

src/registry.test.ts

@@ -0,0 +1,93 @@
+import { describe, expect, it } from '@jest/globals';
+import { TestContext } from './TestContext.js';
+
+describe('query', () => {
+  const tc = new TestContext();
+
+  it('sends a REG command to query a specific value name under a reg key', async () => {
+    const { RegistryValueType, query } = await import('./registry.js');
+
+    const regKey = 'HKEY_CURRENT_USER\\Software\\WindowsReg';
+    const valueName = 'Test';
+    const testCommand = `REG "QUERY" "${regKey}" "/v" "${valueName}"`;
+    const valueType = RegistryValueType.String;
+    const value = 'Test Value';
+    tc.mockCommand(testCommand, {
+      stdout: `${regKey}\r\n    ${valueName}    ${valueType}    ${value}`,
+    });
+
+    const actualResult = await query(regKey, valueName);
+    expect(tc.execMock).toHaveBeenCalledWith(
+      testCommand,
+      expect.anything(),
+      expect.anything(),
+    );
+    expect(actualResult.valueName).toBe(valueName);
+    expect(actualResult.valueType).toBe(valueType);
+    expect(actualResult.value).toBe(value);
+  });
+
+  it('sends a REG command to query all the values under a reg key', async () => {
+    const { queryAll } = await import('./registry.js');
+    const regKey = 'HKEY_CURRENT_USER\\Software\\WindowsReg';
+
+    await queryAll(regKey);
+
+    expect(tc.execMock).toHaveBeenCalledWith(
+      `REG "QUERY" "${regKey}"`,
+      expect.anything(),
+      expect.anything(),
+    );
+
+    await queryAll(regKey, true);
+
+    expect(tc.execMock).toHaveBeenCalledWith(
+      `REG "QUERY" "${regKey}" "/s"`,
+      expect.anything(),
+      expect.anything(),
+    );
+  });
+
+  it('returns null if the execution fails or the reg key does not exist', async () => {
+    const { query, queryAll } = await import('./registry.js');
+    const regKey = 'HKEY_CURRENT_USER\\Software\\NotExisting';
+
+    expect(await queryAll(regKey)).toBe(null);
+    expect(await query(regKey, 'anything')).toBe(null);
+  });
+
+  it('parses different value types when query a reg key', async () => {
+    const { RegistryValueType, queryAll } = await import('./registry.js');
+
+    const regKey = 'HKEY_CURRENT_USER\\Software\\WindowsReg';
+    const testCommand = `REG "QUERY" "${regKey}"`;
+    tc.mockCommand(testCommand, {
+      stdout: `${regKey}\r
+    NumberValue    ${RegistryValueType.Number32}    123\r
+    LongNumberValue    ${RegistryValueType.Number64}    12345\r
+    StringValue    ${RegistryValueType.String}    hello abc 123\r
+    StringValue2    ${RegistryValueType.ExpandableString}    this is expandable string\r
+    MultiStrings    ${RegistryValueType.MultipleStrings}    line 1\\0line 2\\0line last\r
+    Binary    ${RegistryValueType.Binary}    68656c6c6f`,
+    });
+
+    const actualResult = await queryAll(regKey);
+    expect(Object.keys(actualResult)).toContain(regKey);
+
+    const [
+      numberValue,
+      longNumberValue,
+      stringValue,
+      expString,
+      multiStrings,
+      binaryValue,
+    ] = actualResult[regKey];
+    expect(numberValue.value).toBe(123);
+    expect(longNumberValue.value).toBe(12345);
+    expect(stringValue.value).toBe('hello abc 123');
+    expect(expString.value).toBe('this is expandable string');
+    expect(multiStrings.value).toHaveLength(3);
+    expect(multiStrings.value[2]).toBe('line last');
+    expect((binaryValue.value as Buffer).toString('ascii')).toBe('hello');
+  });
+});