fix: Extension module with code - bmm replaces base BMM agents directory instead of merging

This commit is contained in:
Marcos Fadul 2026-03-10 00:36:55 +01:00
parent 9421f20b69
commit bee45a6d58
5 changed files with 347 additions and 3 deletions

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@ -112,5 +112,8 @@ jobs:
- name: Test agent compilation components
run: npm run test:install
- name: Test module extension installer
run: npm run test:install:extensions
- name: Validate file references
run: npm run validate:refs

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@ -1,7 +1,7 @@
{
"$schema": "https://json.schemastore.org/package.json",
"name": "bmad-method",
"version": "6.0.4",
"version": "6.0.5",
"description": "Breakthrough Method of Agile AI-driven Development",
"keywords": [
"agile",
@ -40,9 +40,10 @@
"lint:md": "markdownlint-cli2 \"**/*.md\"",
"prepare": "command -v husky >/dev/null 2>&1 && husky || exit 0",
"rebundle": "node tools/cli/bundlers/bundle-web.js rebundle",
"test": "npm run test:schemas && npm run test:refs && npm run test:install && npm run validate:schemas && npm run lint && npm run lint:md && npm run format:check",
"test": "npm run test:schemas && npm run test:refs && npm run test:install && npm run test:install:extensions && npm run validate:schemas && npm run lint && npm run lint:md && npm run format:check",
"test:coverage": "c8 --reporter=text --reporter=html npm run test:schemas",
"test:install": "node test/test-installation-components.js",
"test:install:extensions": "node test/test-installation-extensions.js",
"test:refs": "node test/test-file-refs-csv.js",
"test:schemas": "node test/test-agent-schema.js",
"validate:refs": "node tools/validate-file-refs.js --strict",

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@ -0,0 +1,302 @@
/**
* Extension Module Merge Tests Issue #1667
*
* Verifies that a custom extension module with `code: bmm` in its module.yaml
* merges its files into the base BMM installation instead of replacing the
* entire directory.
*
* Expected behavior (file-level merge):
* - Files with the same name extension overrides base
* - Files with unique names extension adds alongside base
*
* Usage: node test/test-installation-extensions.js
*/
const path = require('node:path');
const os = require('node:os');
const fs = require('fs-extra');
const { ModuleManager } = require('../tools/cli/installers/lib/modules/manager');
// ANSI colors (match existing test files)
const colors = {
reset: '\u001B[0m',
green: '\u001B[32m',
red: '\u001B[31m',
yellow: '\u001B[33m',
cyan: '\u001B[36m',
dim: '\u001B[2m',
};
let passed = 0;
let failed = 0;
function assert(condition, testName, errorMessage = '') {
if (condition) {
console.log(`${colors.green}${colors.reset} ${testName}`);
passed++;
} else {
console.log(`${colors.red}${colors.reset} ${testName}`);
if (errorMessage) console.log(` ${colors.dim}${errorMessage}${colors.reset}`);
failed++;
}
}
/**
* Build a minimal compiled agent .md file (no YAML compilation needed).
*/
function minimalAgentMd(name) {
return ['---', `name: "${name}"`, `description: "Test agent: ${name}"`, '---', '', `You are ${name}.`].join('\n');
}
/**
* Create a fake base module source directory that looks like src/bmm/.
* Only files relevant to the merge test are created (agents directory).
*/
async function createBaseModuleSource(tmpDir) {
const src = path.join(tmpDir, 'src-base');
// module.yaml
await fs.ensureDir(src);
await fs.writeFile(path.join(src, 'module.yaml'), 'name: BMM\ncode: bmm\nversion: 6.0.0\n');
// agents: analyst + pm (standard base agents)
await fs.ensureDir(path.join(src, 'agents'));
await fs.writeFile(path.join(src, 'agents', 'analyst.md'), minimalAgentMd('analyst'));
await fs.writeFile(path.join(src, 'agents', 'pm.md'), minimalAgentMd('pm'));
return src;
}
/**
* Create a fake extension module source directory (simulates a user's
* custom module with code: bmm in its module.yaml).
*
* Includes:
* - pm.md should OVERRIDE the base pm.md
* - my-agent.md unique name, should be ADDED alongside base agents
*/
async function createExtensionModuleSource(tmpDir) {
const src = path.join(tmpDir, 'src-extension');
await fs.ensureDir(src);
await fs.writeFile(path.join(src, 'module.yaml'), 'name: My Extension\ncode: bmm\nversion: 1.0.0\n');
await fs.ensureDir(path.join(src, 'agents'));
await fs.writeFile(path.join(src, 'agents', 'pm.md'), minimalAgentMd('pm-override'));
await fs.writeFile(path.join(src, 'agents', 'my-agent.md'), minimalAgentMd('my-agent'));
return src;
}
async function runTests() {
console.log(`${colors.cyan}========================================`);
console.log('Extension Module Merge — Issue #1667');
console.log(`========================================${colors.reset}\n`);
// ─────────────────────────────────────────────────────────────────────────
// Test 1: isExtension:false (default) — second install replaces directory
// (confirms the bug existed: without the fix, extension would wipe base)
// ─────────────────────────────────────────────────────────────────────────
console.log(`${colors.yellow}Scenario A: install without isExtension (replacement mode)${colors.reset}\n`);
{
const tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), 'bmad-ext-test-'));
try {
const baseSrc = await createBaseModuleSource(tmpDir);
const extSrc = await createExtensionModuleSource(tmpDir);
const bmadDir = path.join(tmpDir, '_bmad');
const targetPath = path.join(bmadDir, 'bmm');
const manager = new ModuleManager();
// Register extension as the 'bmm' custom module path
manager.setCustomModulePaths(new Map([['bmm', extSrc]]));
// Simulate base install (not custom)
await fs.ensureDir(path.join(targetPath, 'agents'));
await fs.copy(path.join(baseSrc, 'agents', 'analyst.md'), path.join(targetPath, 'agents', 'analyst.md'));
await fs.copy(path.join(baseSrc, 'agents', 'pm.md'), path.join(targetPath, 'agents', 'pm.md'));
// Simulate extension install WITHOUT isExtension flag (old/broken behavior)
if (await fs.pathExists(targetPath)) {
await fs.remove(targetPath); // This is what the old code did unconditionally
}
await fs.ensureDir(path.join(targetPath, 'agents'));
await fs.copy(path.join(extSrc, 'agents', 'pm.md'), path.join(targetPath, 'agents', 'pm.md'));
await fs.copy(path.join(extSrc, 'agents', 'my-agent.md'), path.join(targetPath, 'agents', 'my-agent.md'));
const analystExists = await fs.pathExists(path.join(targetPath, 'agents', 'analyst.md'));
const myAgentExists = await fs.pathExists(path.join(targetPath, 'agents', 'my-agent.md'));
assert(!analystExists, 'Without fix: base analyst.md is GONE (replacement behavior confirmed)');
assert(myAgentExists, 'Without fix: extension my-agent.md is present');
} finally {
await fs.remove(tmpDir);
}
}
console.log('');
// ─────────────────────────────────────────────────────────────────────────
// Test 2: isExtension:true (the fix) — extension merges on top of base
// ─────────────────────────────────────────────────────────────────────────
console.log(`${colors.yellow}Scenario B: install with isExtension:true (merge mode — the fix)${colors.reset}\n`);
{
const tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), 'bmad-ext-test-'));
try {
const baseSrc = await createBaseModuleSource(tmpDir);
const extSrc = await createExtensionModuleSource(tmpDir);
const bmadDir = path.join(tmpDir, '_bmad');
const targetPath = path.join(bmadDir, 'bmm');
const manager = new ModuleManager();
manager.setCustomModulePaths(new Map([['bmm', extSrc]]));
// Step 1: Install base module (normal, no isExtension)
await fs.ensureDir(path.join(targetPath, 'agents'));
await fs.copy(path.join(baseSrc, 'agents', 'analyst.md'), path.join(targetPath, 'agents', 'analyst.md'));
await fs.copy(path.join(baseSrc, 'agents', 'pm.md'), path.join(targetPath, 'agents', 'pm.md'));
// Step 2: Install extension with isExtension:true → should MERGE
// (reproduce what manager.install does: skip removal, then copy)
const skipRemoval = true; // isExtension:true skips fs.remove
if ((await fs.pathExists(targetPath)) && !skipRemoval) {
await fs.remove(targetPath);
}
// Copy extension files over (overwrite same-named, add unique)
await fs.copy(path.join(extSrc, 'agents', 'pm.md'), path.join(targetPath, 'agents', 'pm.md'), { overwrite: true });
await fs.copy(path.join(extSrc, 'agents', 'my-agent.md'), path.join(targetPath, 'agents', 'my-agent.md'));
const analystExists = await fs.pathExists(path.join(targetPath, 'agents', 'analyst.md'));
const myAgentExists = await fs.pathExists(path.join(targetPath, 'agents', 'my-agent.md'));
const pmContent = await fs.readFile(path.join(targetPath, 'agents', 'pm.md'), 'utf8');
assert(analystExists, 'Base analyst.md is PRESERVED after extension install');
assert(myAgentExists, 'Extension my-agent.md is ADDED alongside base agents');
assert(pmContent.includes('pm-override'), 'Extension pm.md OVERRIDES base pm.md (same-name wins)');
} finally {
await fs.remove(tmpDir);
}
}
console.log('');
// ─────────────────────────────────────────────────────────────────────────
// Test 3: ModuleManager.install() with isExtension:true via options
// ─────────────────────────────────────────────────────────────────────────
console.log(`${colors.yellow}Scenario C: ModuleManager.install() respects isExtension option${colors.reset}\n`);
{
const tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), 'bmad-ext-test-'));
try {
const bmadDir = path.join(tmpDir, '_bmad');
const targetPath = path.join(bmadDir, 'bmm');
// Pre-populate target with base files (simulates base module already installed)
await fs.ensureDir(path.join(targetPath, 'agents'));
await fs.writeFile(path.join(targetPath, 'agents', 'analyst.md'), minimalAgentMd('analyst'));
await fs.writeFile(path.join(targetPath, 'agents', 'pm.md'), minimalAgentMd('pm-base'));
// Verify pre-condition
assert(
await fs.pathExists(path.join(targetPath, 'agents', 'analyst.md')),
'Pre-condition: base analyst.md exists before extension install',
);
// Now check that isExtension:true in options causes skip of fs.remove
// by reading the manager source and verifying the condition
const managerSrc = await fs.readFile(path.join(__dirname, '../tools/cli/installers/lib/modules/manager.js'), 'utf8');
const hasExtensionGuard = managerSrc.includes('!options.isExtension');
assert(
hasExtensionGuard,
'manager.js guards fs.remove with !options.isExtension',
'Expected: if ((await fs.pathExists(targetPath)) && !options.isExtension)',
);
} finally {
await fs.remove(tmpDir);
}
}
console.log('');
// ─────────────────────────────────────────────────────────────────────────
// Test 4 (E2E): installModuleWithDependencies → base install, then
// moduleManager.install with isExtension:true → merge
// ─────────────────────────────────────────────────────────────────────────
console.log(
`${colors.yellow}Scenario D: E2E install — base via installModuleWithDependencies, extension via moduleManager.install${colors.reset}\n`,
);
{
const { Installer } = require('../tools/cli/installers/lib/core/installer');
const tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), 'bmad-e2e-test-'));
try {
const baseSrc = await createBaseModuleSource(tmpDir);
const extSrc = await createExtensionModuleSource(tmpDir);
const bmadDir = path.join(tmpDir, '_bmad');
// Pre-create a minimal manifest so moduleManager.install can record the module
await fs.ensureDir(path.join(bmadDir, '_config'));
await fs.writeFile(
path.join(bmadDir, '_config', 'manifest.yaml'),
'installation:\n version: "0.0.0"\n installDate: "2026-01-01T00:00:00.000Z"\n lastUpdated: "2026-01-01T00:00:00.000Z"\nmodules: []\nides: []\n',
);
const installer = new Installer();
// Stub the resolver: point 'bmm' at the fake base source
installer.moduleManager.setCustomModulePaths(new Map([['bmm', baseSrc]]));
// Step 1: Install base module via the public installModuleWithDependencies
await installer.installModuleWithDependencies('bmm', bmadDir, {});
const targetPath = path.join(bmadDir, 'bmm');
assert(
await fs.pathExists(path.join(targetPath, 'agents', 'analyst.md')),
'E2E: after base install via installModuleWithDependencies — analyst.md is present',
);
assert(
await fs.pathExists(path.join(targetPath, 'agents', 'pm.md')),
'E2E: after base install via installModuleWithDependencies — pm.md is present',
);
// Step 2: Re-stub the resolver to point to the extension source, then install
// the extension with isExtension:true so it merges on top of the base
installer.moduleManager.setCustomModulePaths(new Map([['bmm', extSrc]]));
await installer.moduleManager.install('bmm', bmadDir, null, {
isExtension: true,
skipModuleInstaller: true,
silent: true,
});
// Assert merged output: base files preserved, extension files added/overridden
assert(
await fs.pathExists(path.join(targetPath, 'agents', 'analyst.md')),
'E2E: base analyst.md is PRESERVED after extension install (merge, not replace)',
);
assert(
await fs.pathExists(path.join(targetPath, 'agents', 'my-agent.md')),
'E2E: extension my-agent.md is ADDED alongside base agents',
);
const pmContent = await fs.readFile(path.join(targetPath, 'agents', 'pm.md'), 'utf8');
assert(pmContent.includes('pm-override'), 'E2E: extension pm.md OVERRIDES base pm.md (same-name wins)');
} finally {
await fs.remove(tmpDir);
}
}
// ─────────────────────────────────────────────────────────────────────────
// Summary
// ─────────────────────────────────────────────────────────────────────────
console.log(`\n${colors.cyan}========================================${colors.reset}`);
console.log(`Results: ${colors.green}${passed} passed${colors.reset}, ${failed > 0 ? colors.red : ''}${failed} failed${colors.reset}`);
console.log(`${colors.cyan}========================================${colors.reset}\n`);
if (failed > 0) process.exit(1);
}
runTests().catch((error) => {
console.error(`${colors.red}Unexpected error:${colors.reset}`, error);
process.exit(1);
});

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@ -999,6 +999,40 @@ class Installer {
this.moduleManager.setCustomModulePaths(customModulePaths);
}
// Check if this custom module extends a built-in/external base module.
// If a base source exists at a different path, install it first so the
// extension merges on top instead of replacing the entire directory (#1667).
const customSourcePath = customModulePaths.get(moduleName);
const baseSourcePath = getModulePath(moduleName);
const hasBaseModule =
customSourcePath &&
baseSourcePath !== customSourcePath &&
(await fs.pathExists(path.join(baseSourcePath, 'module.yaml')));
if (hasBaseModule) {
// Temporarily clear custom path so findModuleSource resolves to the base
customModulePaths.delete(moduleName);
this.moduleManager.setCustomModulePaths(customModulePaths);
// Install the base module first (clean install, removes any prior version)
if (resolution && resolution.byModule && resolution.byModule[moduleName]) {
await this.installModuleWithDependencies(moduleName, bmadDir, resolution.byModule[moduleName]);
} else {
await this.moduleManager.install(
moduleName,
bmadDir,
(filePath) => {
this.installedFiles.add(filePath);
},
{ installer: this, silent: true },
);
}
// Restore the custom path for the extension overlay
customModulePaths.set(moduleName, customSourcePath);
this.moduleManager.setCustomModulePaths(customModulePaths);
}
const collectedModuleConfig = moduleConfigs[moduleName] || {};
await this.moduleManager.install(
moduleName,
@ -1008,6 +1042,7 @@ class Installer {
},
{
isCustom: true,
isExtension: hasBaseModule, // merge on top of base when extending
moduleConfig: collectedModuleConfig,
isQuickUpdate: isQuickUpdate,
installer: this,

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@ -554,7 +554,10 @@ class ModuleManager {
}
// Check if already installed
if (await fs.pathExists(targetPath)) {
// When isExtension is true, the caller is merging an extension module on top
// of an already-installed base module (same code). Skip removal so that base
// files are preserved and the extension's files overlay at the file level.
if ((await fs.pathExists(targetPath)) && !options.isExtension) {
await fs.remove(targetPath);
}