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import { ContextGenerationService } from '../context-generation/context-generation.service';
import {
SearchWorkspaceResponseDto,
SearchResultItemDto,
} from './dto/search-workspace.dto';
import * as fs from 'fs/promises';
import * as path from 'path';
import { fuzzySearch, Trace } from '../utils';
import { exec, ExecOptions } from 'child_process';
import { trace } from '@opentelemetry/api';
import { FileTreeResponseDto, TreeNodeDto } from './dto/file-tree.dto';
@Injectable()
export class WorkspaceService {
private readonly logger = new Logger(WorkspaceService.name);
private projectRoot: string =
process.env.REPOBURG_PROJECT_PATH || process.cwd();
private tracer = trace.getTracer('repoburg-backend');
// Cache for file tree
private fileTreeCache: FileTreeResponseDto | null = null;
private fileTreeCacheTimestamp: number | null = null;
private readonly CACHE_TTL_MS = 5 * 60 * 1000; // 5 minutes
constructor(
private readonly contextGenerationService: ContextGenerationService,
) {}
@Trace()
private execAsync(
command: string,
options: ExecOptions,
): Promise<{ stdout: string; stderr: string }> {
return new Promise((resolve, reject) => {
exec(command, options, (error, stdout, stderr) => {
const stdoutStr = stdout.toString();
const stderrStr = stderr.toString();
if (error) {
error['stdout'] = stdoutStr;
error['stderr'] = stderrStr;
reject(error);
return;
}
resolve({ stdout: stdoutStr, stderr: stderrStr });
});
});
}
@Trace()
private async getFilesFromRg(): Promise<string[]> {
const rgCommand = await this.contextGenerationService.getCommandPath('rg');
const ignoreFlags =
await this.contextGenerationService.getRipGrepIgnoreFlags();
// --files: lists all files, respecting ignore rules
// --hidden: ensures hidden files (dotfiles) are included, unless ignored
// ignoreFlags: uses .rgignore if present, otherwise .gitignore by default
const command = `${rgCommand} ${ignoreFlags} --files . --hidden --glob '!.git'`;
try {
this.logger.log(`Executing for file list: ${command}`);
const { stdout } = await this.execAsync(command, {
cwd: this.projectRoot,
maxBuffer: 256 * 1024 * 1024, // 256MB
timeout: 10000, // 10s
});
return stdout.trim().split('\n').filter(Boolean);
} catch (error) {
// rg exits with code 1 if no files are found with --files, which is not an error for us.
if (error.code === 1 && error.stdout === '' && error.stderr === '') {
this.logger.log('rg --files returned no files.');
return [];
}
this.logger.error(
`Failed to get file list from rg: ${error.message}`,
error.stack,
);
throw new Error(
`Could not retrieve file list from RipGrep. Is 'rg' installed and in your PATH?`,
);
}
}
private resolveAndValidatePath(unsafePath: string): string {
const normalizedPath = path.normalize(unsafePath);
if (path.isAbsolute(normalizedPath)) {
throw new BadRequestException(
`Absolute paths are not allowed: ${unsafePath}`,
);
}
const resolvedPath = path.resolve(this.projectRoot, normalizedPath);
if (!resolvedPath.startsWith(this.projectRoot)) {
this.logger.warn(`Path traversal attempt detected: ${unsafePath}`);
throw new BadRequestException(
`Path traversal is not allowed. Access denied for path: ${unsafePath}`,
);
}
return resolvedPath;
}
@Trace()
async validatePaths(paths: {
files?: string[];
folders?: string[];
}): Promise<{ valid: boolean; invalidPaths: string[] }> {
const invalidPaths: string[] = [];
const allPaths = [...(paths.files || []), ...(paths.folders || [])];
for (const p of allPaths) {
try {
const safePath = this.resolveAndValidatePath(p);
await fs.access(safePath);
} catch (e) {
invalidPaths.push(p);
}
}
return {
valid: invalidPaths.length === 0,
invalidPaths,
};
}
@Trace()
async getFileTree(): Promise<FileTreeResponseDto> {
const now = Date.now();
if (
this.fileTreeCache &&
this.fileTreeCacheTimestamp &&
now - this.fileTreeCacheTimestamp < this.CACHE_TTL_MS
) {
this.logger.log('Returning file tree from cache.');
return this.fileTreeCache;
}
this.logger.log(
`Building file tree from filesystem with rg: ${this.projectRoot}`,
);
try {
const files = await this.getFilesFromRg();
const fileTree: { [key: string]: any } = {};
files.forEach((filePath) => {
filePath.split(path.sep).reduce((level, part) => {
if (!level[part]) {
level[part] = {};
}
return level[part];
}, fileTree);
});
const toArboristData = (
subtree: { [key: string]: any },
pathPrefix = '',
): TreeNodeDto[] => {
return Object.entries(subtree)
.map(([name, children]) => {
const id = pathPrefix ? `${pathPrefix}/${name}` : name;
const isFile = Object.keys(children).length === 0;
if (isFile) {
return { id, name };
} else {
return {
id,
name,
children: toArboristData(children, id),
};
}
})
.sort((a, b) => {
const isAFolder = !!a.children;
const isBFolder = !!b.children;
Iif (isAFolder && !isBFolder) return -1;
if (!isAFolder && isBFolder) return 1;
return a.name.localeCompare(b.name);
});
};
const treeData = toArboristData(fileTree);
const response: FileTreeResponseDto = { tree: treeData };
this.fileTreeCache = response;
this.fileTreeCacheTimestamp = now;
this.logger.log(
`Built and cached file tree with ${files.length} total entries.`,
);
return response;
} catch (error) {
this.logger.error('Failed to get file tree:', error);
throw error;
}
}
@Trace()
async invalidateFileTreeCache(): Promise<void> {
this.logger.log('Invalidating file tree cache.');
this.fileTreeCache = null;
this.fileTreeCacheTimestamp = null;
}
@Trace()
async search(
query: string,
type: 'files' | 'folders' | 'all',
page: number,
limit: number,
): Promise<SearchWorkspaceResponseDto> {
this.logger.log(`Searching for "${query}" (type: ${type})`);
// We get the cached tree, or build it if not present.
const { tree } = await this.getFileTree();
const { files, folders } = this.tracer.startActiveSpan(
'workspace.search#flattenTree',
(span) => {
const filesList: string[] = [];
const foldersList: string[] = [];
const flatten = (nodes: TreeNodeDto[]) => {
for (const node of nodes) {
if (node.children) {
foldersList.push(node.id);
flatten(node.children);
} else {
filesList.push(node.id);
}
}
};
flatten(tree);
span.setAttribute('files.count', filesList.length);
span.setAttribute('folders.count', foldersList.length);
span.end();
return { files: filesList, folders: foldersList };
},
);
const searchPool = this.tracer.startActiveSpan(
'workspace.search#prepareSearchPool',
(span) => {
let pool: { path: string; type: 'file' | 'folder' }[] = [];
if (type === 'all') {
pool = [
...files.map((p) => ({ path: p, type: 'file' as const })),
...folders.map((p) => ({ path: p, type: 'folder' as const })),
];
} else if (type === 'files') {
pool = files.map((p) => ({ path: p, type: 'file' as const }));
} else if (type === 'folders') {
pool = folders.map((p) => ({ path: p, type: 'folder' as const }));
}
span.setAttribute('pool.size', pool.length);
span.setAttribute('search.type', type);
span.end();
return pool;
},
);
const matchedPaths = this.tracer.startActiveSpan(
'workspace.search#fuzzySearch',
(span) => {
const searchPoolStrings = searchPool.map((item) => item.path);
const results = fuzzySearch(query, searchPoolStrings);
span.setAttribute('search.query', query);
span.setAttribute('results.count', results.length);
span.end();
return results;
},
);
const { paginatedResults, total } = this.tracer.startActiveSpan(
'workspace.search#filterAndPaginate',
(span) => {
const searchPoolMap = new Map<string, SearchResultItemDto>(
searchPool.map((item) => [item.path, item]),
);
const results: SearchResultItemDto[] = matchedPaths
.map((path) => searchPoolMap.get(path))
.filter((item): item is SearchResultItemDto => item !== undefined);
const totalResults = results.length;
const startIndex = (page - 1) * limit;
const endIndex = page * limit;
const paginated = results.slice(startIndex, endIndex);
span.end();
return { paginatedResults: paginated, total: totalResults };
},
);
const endIndex = page * limit;
this.logger.log(
`Search for "${query}" (type: ${type}) found ${total} total results. Returning page ${page} with ${paginatedResults.length} items.`,
);
return {
results: paginatedResults,
total,
page,
hasMore: endIndex < total,
};
}
@Trace()
async getFileContent(filePath: string): Promise<string> {
this.logger.log(`Reading content for file: ${filePath}`);
// Use the fetchFileContent method from ContextGenerationService to ensure path safety and get raw content.
return this.contextGenerationService.fetchFileContent(filePath);
}
}
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