Install gor with Homebrew

Project links

• Homepage
• Repository
• Upstream docs
• Package manager page

Commands and aliases

• gor

Project history

The repository was created in 2013 by Leonid Bugaev and was long known in package managers by the shorter command name `gor`. Official materials describe GoReplay as an open-source network monitoring and traffic replay tool that records live traffic for shadowing, load testing, monitoring, and detailed analysis.

The core design avoided acting as a proxy in the request path. Instead, GoReplay listens in the background on network interfaces, a design choice the README presents as a way to avoid changing production infrastructure beyond running the daemon.

The project later developed a commercial GoReplay PRO offering for features such as binary protocols, cloud storage, TCP session replication, and commercial-friendly licensing, while the open-source command remained the package-manager artifact.

Adoption history

The README lists production users and adopters such as GOV.UK, The Guardian, TomTom, 3scale, OpinionLab, TubeMogul, Videology, ForeksMobile, and Granify. That kind of adoption made GoReplay a familiar name in traffic-shadowing and deployment-validation conversations.

Homebrew packages the command as `gor`, preserving the older concise executable name even though the project branding is GoReplay. That mismatch is part of its package history.

How it is used

A basic capture command listens on a port with `--input-raw` and writes to stdout, a file, or an HTTP output. The documented staging replay pattern is `gor --input-raw :80 --output-http http://staging.example`.

GoReplay can also save requests to a file and replay them later while preserving timing characteristics. That makes it useful for regression testing, load testing, and deployment confidence checks using observed traffic rather than synthetic request sets.

Why package nerds care

GoReplay is significant because it packages a production-adjacent network tool as a portable Go binary. The Homebrew formula name `gor` is a reminder that package-manager identity can lag or differ from project branding.

It also illustrates a recurring ops-tool pattern: one executable with composable input and output flags, where package managers provide installability and the operational topology lives in command arguments.

Timeline

• 2013: GoReplay repository created.
• 2010s: Project documents capture and replay workflows around `--input-raw`, `--output-http`, and file outputs.
• 2010s: README lists production users including GOV.UK, The Guardian, TomTom, and 3scale.
• 2020s: Documentation continues under the GoReplay brand while Homebrew keeps the `gor` package name.

Related projects

• GoReplay PRO is the commercial extension line described by the project.
• tcpdump is a conceptual comparison in the docs for passive traffic capture.
• Traffic shadowing, load testing, and staging replay workflows are the operational ecosystem around GoReplay.

Sources

• https://docs.goreplay.org/
• https://docs.goreplay.org/untitled/capturing-and-replaying-traffic
• https://docs.goreplay.org/untitled/saving-and-replaying-from-file
• https://github.com/buger/goreplay
• https://leonsbox.com/projects/goreplay/