@dbx-tools/path

Discover, match, ignore, scan, and watch filesystem paths with the same rules used by the CLI, Projen, barrel generation, code generation, and documentation tooling.

Find files

import { find, ignore } from "@dbx-tools/path";

for await (const file of find.findFiles(["packages/**/src/**/*.ts"], {
  ignore: ignore.ignorePatterns(),
})) {
  await processFile(file);
}

const files = find.findFilesSync(["packages/**/src/**/*.ts"]).toArray();

find.findFiles() streams matches asynchronously. find.findFilesSync() returns a lazy Sequence<string> from @dbx-tools/shared-core, so callers can map/filter without materializing immediately.

The package also provides glob matchers, shared ignore rules, workspace package scanning, and Chokidar-based watch helpers.

Use this package instead of direct glob or chokidar calls when the result should agree with package discovery, barrel generation, or cleanup logic.

Compile matchers

import { match } from "@dbx-tools/path";

const isTest = match.toPathMatcher("**/*.test.ts");
if (isTest("packages/shared/model/test/classify.test.ts")) {
  skip();
}

match.toPathMatcher() returns a composable shared-core predicate. Use match.pathMatchTests() when you need to inspect the compiled include/exclude tests.

Reuse ignore rules

import { ignore } from "@dbx-tools/path";

const matcher = ignore.ignorePathMatcher({
  defaults: true,
  dot: true,
  test: false,
  lock: "auto",
});

The ignore helpers centralize repo-wide exclusions such as node_modules, generated files, build output, VCS metadata, and package-manager output.

Scan workspace packages

import { scan } from "@dbx-tools/path";

const options: scan.FileScanOptions = {
  cwd: "packages",
  ignore: ["generated/**"],
  followSymlinks: scan.FOLLOW_SYMLINKS_DEFAULT,
};

scan exports shared scan option types used by the projen engine. Use the same options when implementing docs or analysis tools that should walk the workspace like synthesis does.

Watch files

import { watch } from "@dbx-tools/path";

const watcher = await watch.watchFiles(["packages/**/src/**/*.ts"], {
  ignoreInitial: true,
});

watcher.on("change", (file) => rebuild(file));

watch.watchFiles() wraps chokidar with the same path and ignore expectations used by the rest of the repo tooling.

Build patterns

import { pattern } from "@dbx-tools/path";

const nodeModulesPattern = pattern.directoryNamePattern("node_modules");
const tsPattern = pattern.fileExtensionPattern("ts");

Pattern helpers keep generated glob fragments escaped and consistent.

Modules

• find - glob-backed lazy file finding.
• match - glob-to-predicate path matchers.
• ignore - standard ignore pattern and matcher construction.
• scan - package scan option types and defaults.
• watch - chokidar wrapper for file watching.
• pattern - escaped directory-name and extension glob fragments.

The projen engine uses this package in @dbx-tools/projen.