custom install module cached

tools/cli/installers/lib/core/custom-module-cache.js

@@ -0,0 +1,239 @@
+/**
+ * Custom Module Source Cache
+ * Caches custom module sources under _cfg/custom/ to ensure they're never lost
+ * and can be checked into source control
+ */
+
+const fs = require('fs-extra');
+const path = require('node:path');
+const crypto = require('node:crypto');
+
+class CustomModuleCache {
+  constructor(bmadDir) {
+    this.bmadDir = bmadDir;
+    this.customCacheDir = path.join(bmadDir, '_cfg', 'custom');
+    this.manifestPath = path.join(this.customCacheDir, 'cache-manifest.yaml');
+  }
+
+  /**
+   * Ensure the custom cache directory exists
+   */
+  async ensureCacheDir() {
+    await fs.ensureDir(this.customCacheDir);
+  }
+
+  /**
+   * Get cache manifest
+   */
+  async getCacheManifest() {
+    if (!(await fs.pathExists(this.manifestPath))) {
+      return {};
+    }
+
+    const content = await fs.readFile(this.manifestPath, 'utf8');
+    const yaml = require('js-yaml');
+    return yaml.load(content) || {};
+  }
+
+  /**
+   * Update cache manifest
+   */
+  async updateCacheManifest(manifest) {
+    const yaml = require('js-yaml');
+    const content = yaml.dump(manifest, {
+      indent: 2,
+      lineWidth: -1,
+      noRefs: true,
+      sortKeys: false,
+    });
+
+    await fs.writeFile(this.manifestPath, content);
+  }
+
+  /**
+   * Calculate hash of a file or directory
+   */
+  async calculateHash(sourcePath) {
+    const hash = crypto.createHash('sha256');
+
+    const isDir = (await fs.stat(sourcePath)).isDirectory();
+
+    if (isDir) {
+      // For directories, hash all files
+      const files = [];
+      async function collectFiles(dir) {
+        const entries = await fs.readdir(dir, { withFileTypes: true });
+        for (const entry of entries) {
+          if (entry.isFile()) {
+            files.push(path.join(dir, entry.name));
+          } else if (entry.isDirectory() && !entry.name.startsWith('.')) {
+            await collectFiles(path.join(dir, entry.name));
+          }
+        }
+      }
+
+      await collectFiles(sourcePath);
+      files.sort(); // Ensure consistent order
+
+      for (const file of files) {
+        const content = await fs.readFile(file);
+        const relativePath = path.relative(sourcePath, file);
+        hash.update(relativePath + '|' + content.toString('base64'));
+      }
+    } else {
+      // For single files
+      const content = await fs.readFile(sourcePath);
+      hash.update(content);
+    }
+
+    return hash.digest('hex');
+  }
+
+  /**
+   * Cache a custom module source
+   * @param {string} moduleId - Module ID
+   * @param {string} sourcePath - Original source path
+   * @param {Object} metadata - Additional metadata to store
+   * @returns {Object} Cached module info
+   */
+  async cacheModule(moduleId, sourcePath, metadata = {}) {
+    await this.ensureCacheDir();
+
+    const cacheDir = path.join(this.customCacheDir, moduleId);
+    const cacheManifest = await this.getCacheManifest();
+
+    // Check if already cached and unchanged
+    if (cacheManifest[moduleId]) {
+      const cached = cacheManifest[moduleId];
+      if (cached.originalHash && cached.originalHash === (await this.calculateHash(sourcePath))) {
+        // Source unchanged, return existing cache info
+        return {
+          moduleId,
+          cachePath: cacheDir,
+          ...cached,
+        };
+      }
+    }
+
+    // Remove existing cache if it exists
+    if (await fs.pathExists(cacheDir)) {
+      await fs.remove(cacheDir);
+    }
+
+    // Copy module to cache
+    await fs.copy(sourcePath, cacheDir, {
+      filter: (src) => {
+        const relative = path.relative(sourcePath, src);
+        // Skip node_modules, .git, and other common ignore patterns
+        return !relative.includes('node_modules') && !relative.startsWith('.git') && !relative.startsWith('.DS_Store');
+      },
+    });
+
+    // Calculate hash of the source
+    const sourceHash = await this.calculateHash(sourcePath);
+    const cacheHash = await this.calculateHash(cacheDir);
+
+    // Update manifest - don't store originalPath for source control friendliness
+    cacheManifest[moduleId] = {
+      originalHash: sourceHash,
+      cacheHash: cacheHash,
+      cachedAt: new Date().toISOString(),
+      ...metadata,
+    };
+
+    await this.updateCacheManifest(cacheManifest);
+
+    return {
+      moduleId,
+      cachePath: cacheDir,
+      ...cacheManifest[moduleId],
+    };
+  }
+
+  /**
+   * Get cached module info
+   * @param {string} moduleId - Module ID
+   * @returns {Object|null} Cached module info or null
+   */
+  async getCachedModule(moduleId) {
+    const cacheManifest = await this.getCacheManifest();
+    const cached = cacheManifest[moduleId];
+
+    if (!cached) {
+      return null;
+    }
+
+    const cacheDir = path.join(this.customCacheDir, moduleId);
+
+    if (!(await fs.pathExists(cacheDir))) {
+      // Cache dir missing, remove from manifest
+      delete cacheManifest[moduleId];
+      await this.updateCacheManifest(cacheManifest);
+      return null;
+    }
+
+    // Verify cache integrity
+    const currentCacheHash = await this.calculateHash(cacheDir);
+    if (currentCacheHash !== cached.cacheHash) {
+      console.warn(`Warning: Cache integrity check failed for ${moduleId}`);
+    }
+
+    return {
+      moduleId,
+      cachePath: cacheDir,
+      ...cached,
+    };
+  }
+
+  /**
+   * Get all cached modules
+   * @returns {Array} Array of cached module info
+   */
+  async getAllCachedModules() {
+    const cacheManifest = await this.getCacheManifest();
+    const cached = [];
+
+    for (const [moduleId, info] of Object.entries(cacheManifest)) {
+      const cachedModule = await this.getCachedModule(moduleId);
+      if (cachedModule) {
+        cached.push(cachedModule);
+      }
+    }
+
+    return cached;
+  }
+
+  /**
+   * Remove a cached module
+   * @param {string} moduleId - Module ID to remove
+   */
+  async removeCachedModule(moduleId) {
+    const cacheManifest = await this.getCacheManifest();
+    const cacheDir = path.join(this.customCacheDir, moduleId);
+
+    // Remove cache directory
+    if (await fs.pathExists(cacheDir)) {
+      await fs.remove(cacheDir);
+    }
+
+    // Remove from manifest
+    delete cacheManifest[moduleId];
+    await this.updateCacheManifest(cacheManifest);
+  }
+
+  /**
+   * Sync cached modules with a list of module IDs
+   * @param {Array<string>} moduleIds - Module IDs to keep
+   */
+  async syncCache(moduleIds) {
+    const cached = await this.getAllCachedModules();
+
+    for (const cachedModule of cached) {
+      if (!moduleIds.includes(cachedModule.moduleId)) {
+        await this.removeCachedModule(cachedModule.moduleId);
+      }
+    }
+  }
+}
+
+module.exports = { CustomModuleCache };