gengo (言語)

A linguist-inspired language classifier with multiple file source handlers.

Its output is similar to linguist, but by default the language stats are colorized.

Comparison

Feature/Behavior	linguist	gengo
Analyze Git Revision	Yes	Yes
Analyze Directory	No	Yes
Requires Git Repository	Yes	No
Detect Language by Extension	Yes	Yes
Detect Language by Filename	Yes	Yes
Detect by Filepath Pattern	No	Yes
Detect Language with Heuristics	Yes	Yes
Detect Language with Classifier	Yes	Not Yet ;)

Installation

View the installation documentation.

Usage

This tool has multiple file sources. Each file source can have unique usage to take advantage of its strengths and work around its weaknesses.

Directory File Source

This is a very generic file source that tries not to make many assumptions about your environment and workspace.

Ignoring Files

You can utilize a .gitignore file and/or an .ignore file to prevent files from being scanned. See the ignore for more details.

Git File Source

The git file source is highly opinionated -- it tries to act like a git utility, and uses git tools. Its goal is to behave similarly to linguist. This means that this file source does not need any actual files present, and can work on a bare repository, making it suitable for usage with a Git server.

Overrides

Like linguist, you can override behavior using a .gitattributes file. Basically, just replace linguist-FOO with gengo-FOO. Unlike linguist, gengo-detectable will always make a file be included in statistics (linguist will still exclude them if they're generated or vendored).

# .gitattributes

# boolean attributes:

# These can be *negated* by prefixing with `-` (`-gengo-documentation`).
# Mark a file as documentation
*.html gengo-documentation
# Mark a file as generated
my-built-files/* gengo-generated
# Mark a file as vendored
deps/* gengo-vendored

# string attributes:
# Override the detected language for a file
# Use the Language enum's variant name (see docs.rs for more details)
templates/*.js gengo-language=PlainText

You will need to commit your .gitattributes file for it to take effect.