macOS
Homebrewverified · 100%
brew install fmdifflocal Homebrew formula metadata
brew / rank 11794
Install fmdiff with Homebrew
Use FileMerge as a diff command for Subversion and Mercurial. Version 20150915 via Homebrew; verified from local package data.
install
Additional install commands
overview
Package summary
Use FileMerge as a diff command for Subversion and Mercurial
Project links
Commands and aliases
- filemerge
- fmdiff
- fmdiff3
- fmmerge
- fmresolve
history
Project history and usage
fmdiff is part of the fmscripts collection, a small set of Bash wrapper scripts that make Apple's FileMerge usable as a command-line diff and merge tool for Subversion and Mercurial workflows on macOS.
Project history
The official repository was created in 2015 and the README describes the motivation: FileMerge ships with Apple's developer tools and is useful interactively, but its `opendiff` command does not match the blocking argument conventions expected by tools such as Subversion. The scripts adapt FileMerge to those command-line interfaces.
Adoption history
Official evidence points to a niche, Mac-specific developer utility rather than a broad platform project. Its adoption surface is package-manager installation plus direct Makefile installation into `/usr/local/bin` for users who want FileMerge in Subversion or Mercurial.
How it is used
The README documents `fmdiff` as a `diff`-like command for `svn diff --diff-cmd`, `fmdiff3` as a `diff3`-like command for update and merge operations, `fmresolve` for resolving existing Subversion conflicts, and `fmmerge` as an external merge tool.
Why package nerds care
fmdiff is package-nerd significant as the kind of glue utility Homebrew preserves well: a small script set that normalizes a GUI developer tool into classic Unix command contracts. It also reflects an era when Mac developers frequently bridged Xcode tools with Subversion and Mercurial command-line workflows.
Timeline
- 2015: The fmscripts repository was created.
- 2015: The repository README documented FileMerge wrappers for Subversion and experimental Mercurial support.
Related projects
- Related official concepts and tools include Apple's FileMerge and `opendiff`, Subversion, Mercurial, `diff`, `diff3`, and the sibling fmscripts commands `fmdiff3`, `fmresolve`, `fmmerge`, and `filemerge`.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
filemerge | executable | indexed executable | Discovered from the local executable index. |
fmdiff | executable | indexed executable | Discovered from the local executable index. |
fmdiff3 | executable | indexed executable | Discovered from the local executable index. |
fmmerge | executable | indexed executable | Discovered from the local executable index. |
fmresolve | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version20150915
manager updated
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:fmdiff |
|---|---|
| Version | 20150915 |
| Package manager | Homebrew |
| Homepage | https://github.com/brunodefraine/fmscripts |
| Repository | https://github.com/brunodefraine/fmscripts |
| Bottle | not recorded |
| Service | none declared |
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- pkg.so package database
- pkgdb category and tag curation