diffloc

Git diff & line count statistics. Shows line counts, additions, and deletions for your codebase. Works in non-git repos too.

Features

• Works in git repos and non-git directories
• Exact per-file additions/deletions from git diff --numstat (staged + unstaged vs HEAD)
• Respects .gitignore, nested .gitignore files, .git/info/exclude and your global excludes
• Smart filtering for common artifacts
• JSON output mode
• Configurable via file or flags
• Supports all mainstream languages out of the box — Go, Rust, Python, JavaScript/TypeScript, C/C++, JVM, .NET, and more (extensible via .diffloc.yaml)

Installation

# Homebrew
brew tap nodelike/tap
brew trust nodelike/tap    # Homebrew 7+ refuses formulas from untrusted taps
brew install diffloc

# Go
go install github.com/nodelike/diffloc/cmd/diffloc@latest

Usage

diffloc                    # Current directory
diffloc /path/to/project   # Specific path (a repo subdirectory scopes the report to it)
diffloc --json             # JSON output

Flags

Flag	Description
--no-gitignore	Ignore .gitignore patterns
--exclude-tests	Exclude test files
--exclude <pattern>	Custom exclusion regex (repeatable)
--ext <ext>	Override allowed extensions (repeatable)
--max-depth <n>	Limit directory depth (0 = unlimited, 1 = top-level files only)
--json	Output as JSON
--config <file>	Config file path (default: .diffloc.yaml)

Config File

Create .diffloc.yaml in your project root:

exclude-tests: true
no-gitignore: false
max-depth: 0
exclude:
  - "vendor/"
  - "\\.pb\\.go$"
ext:
  - ".go"
  - ".py"

Settings can also come from DIFFLOC_* environment variables, e.g. DIFFLOC_EXCLUDE_TESTS=true. The config file is looked up in the analyzed path, then the current directory.

In git repositories diffloc shells out to git, so it needs git on your PATH. Without it, every directory is counted as a plain directory.

What Gets Excluded

Directories: node_modules, venv, .venv, __pycache__, .git, dist, build, target, *.egg-info, .tox, coverage, .next, vendor, bin, tmp

Files: Lock files (*.lock, *-lock.json), binaries (*.exe, *.so, *.dylib, *.dll), images (*.jpg, *.png, *.svg, etc.), generated files (*_templ.go, *.pb.go, *.min.js)

Default Extensions: Common source files across mainstream languages, including .go, .rs, .py, .js/.ts/.jsx/.tsx, .vue/.svelte, .c/.cpp/.h/.hpp, .java/.kt/.scala, .cs/.fs, .swift, .rb, .php, .css/.scss, .sql, and more. Override with --ext or the config file.

License

MIT License

made with ❤️ by @nodelike