# Install git-when-merged with Homebrew, MacPorts, Nix Find where a commit was merged in git. Version 1.2.1 via Homebrew; verified 2026-06-18. ## Install ```sh sudo av install brew:git-when-merged ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install git-when-merged ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install git-when-merged ``` Evidence: MacPorts ports tree: devel/git-when-merged/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - Nix (92%): ```sh nix profile install nixpkgs#git-when-merged ``` Evidence: nixpkgs package indexes: pkgs/by-name/gi/git-when-merged/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:git-when-merged - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.2.1 - **Source summary:** Find where a commit was merged in git - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-2.0-only - **Source archive:** - **Last updated:** 2026-06-18T09:25:51+09:00 - **Generated:** 2026-07-10T07:20:53+00:00 ## Executables - git-when-merged (cli) - git-when-merged (alias) ## Uses from macOS - python ## Install behavior - Post-install hook: not defined - Bottle: available on all ## Freshness - Page generated: 2026-07-10 - Package-manager version: 1.2.1 - Package-manager updated: 2026-06-18 - Local data: ok - Upstream repository: https://github.com/mhagger/git-when-merged - Upstream latest detected: v1.2.1 (current) ## Project history and usage git-when-merged is a Python Git extension that finds the merge commit that first brought a given commit into a branch. ### Project history Michael Haggerty created the repository in February 2013. The README says the command was originally based on a Stack Overflow suggestion for finding the merge commit that included a specific commit. The project grew around Git-history forensics. The 2016 releases added recursive merge tracing, log output, commit-only output, branch display, and describe-based options. A 2022 release added the packaging work needed for PyPI distribution. ### Adoption history The README documents several installation paths: pipx from PyPI, a local virtual environment, cloning the repository onto PATH, and Homebrew for macOS users. Package-manager metadata also lists distribution through Homebrew, MacPorts, and Nix. ### How it is used Practitioners use git when-merged during code archaeology, release maintenance, and regression tracking. It walks first-parent history to answer when and why a commit entered a branch, with options to show logs, diffs, merge ranges, patterns, and configured reference groups. ### Why package nerds care The tool is a package-nerd favorite because it wraps a subtle Git graph question in a memorable subcommand, making first-parent merge analysis scriptable and repeatable. ### Timeline - 2013: Repository created. - 2016: v1.1 and v1.2 releases expanded merge-analysis options. - 2022: v1.2.1 added PyPI release packaging. ### Related projects - git log --first-parent, git describe, pipx, PyPI, Homebrew ### Sources - - - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** git-when-merged - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - git-when-merged: normalized package name match | nixpkgs package indexes: pkgs/by-name/gi/git-when-merged/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - MacPorts - git-when-merged: normalized package name match | MacPorts ports tree: devel/git-when-merged/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [committed](https://www.automicvault.com/pkg/brew/committed/) - Shares av.db curated category or tags: cli, commit-history, developer-tools, version-control. - [git-lfs](https://www.automicvault.com/pkg/brew/git-lfs/) - Shares av.db curated category or tags: cli, developer-tools, git-extension, version-control. - [git-machete](https://www.automicvault.com/pkg/brew/git-machete/) - Shares av.db curated category or tags: cli, developer-tools, git-extension, version-control. - [git-mediate](https://www.automicvault.com/pkg/brew/git-mediate/) - Shares av.db curated category or tags: cli, developer-tools, git-extension, version-control. - [git-multipush](https://www.automicvault.com/pkg/brew/git-multipush/) - Shares av.db curated category or tags: cli, developer-tools, git-extension, version-control. - [git-now](https://www.automicvault.com/pkg/brew/git-now/) - Shares av.db curated category or tags: cli, developer-tools, git-extension, version-control. - [git-number](https://www.automicvault.com/pkg/brew/git-number/) - Shares av.db curated category or tags: cli, developer-tools, git-extension, version-control. - [git-octopus](https://www.automicvault.com/pkg/brew/git-octopus/) - Shares av.db curated category or tags: cli, developer-tools, git-extension, version-control. - [git-trim](https://www.automicvault.com/pkg/brew/git-trim/) - Package names and metadata indicate a similar tool family. Shared terms: cli, control, developer, developer-tools, extension. ## Combined YAML source View the package source record on GitHub. [combined/git-when-merged.yml](https://github.com/automic-vault/db/blob/main/combined/git-when-merged.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph