watchman

Install command:
brew install watchman

Watch files and take action when they change

https://github.com/facebook/watchman

License: MIT

Development: Pull requests

Formula JSON API: /api/formula/watchman.json

Formula code: watchman.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon
tahoe
sequoia
sonoma
macOS on
Intel
sonoma
Linux ARM64
x86_64

Current versions:

stable 2026.03.16.00
head ⚡️ HEAD

Depends on:

edencommon 2026.03.16.00 Shared library for Watchman and Eden projects
fb303 2026.03.16.00 Thrift functions for querying information from a service
fbthrift 2026.03.16.00 Facebook's branch of Apache Thrift, including a new C++ server
fmt 12.1.0 Open-source formatting library for C++
folly 2026.03.16.00 Collection of reusable C++ library artifacts developed at Facebook
glog 0.7.1 Application-level logging library
pcre2 10.47 Perl compatible regular expressions library with a new API
python@3.14 3.14.3 Interpreted, interactive, object-oriented programming language

Depends on when building from source:

cmake 4.3.0 Cross-platform make
cpptoml 0.1.1 Header-only library for parsing TOML
gflags 2.3.0 Library for processing command-line flags
googletest 1.17.0 Google Testing and Mocking Framework
libevent 2.1.12 Asynchronous event library
mvfst 2026.03.16.00 QUIC transport protocol implementation
openssl@3 3.6.1 Cryptography and SSL/TLS Toolkit
pkgconf 2.5.1 Package compiler and linker metadata toolkit
python-setuptools 82.0.1 Easily download, build, install, upgrade, and uninstall Python packages
rust 1.94.0 Safe, concurrent, practical language

Analytics:

Installs (30 days)
watchman 21,596
watchman --HEAD 39
Installs on Request (30 days)
watchman 21,566
watchman --HEAD 38
Build Errors (30 days)
watchman 17
Installs (90 days)
watchman 64,473
watchman --HEAD 113
Installs on Request (90 days)
watchman 64,393
watchman --HEAD 110
Installs (365 days)
watchman 376,244
watchman --HEAD 1,101
Installs on Request (365 days)
watchman 375,951
watchman --HEAD 1,096