bump

Bump semantic version in any file using a regular expression pattern.

2026-02-18.091300.mp4

Inspired by gobump, but works with any file format.

Installation

go install github.com/mattn/bump@latest

Usage

bump (major|minor|patch|up|set <version>|show) -f <file> -p <pattern> [-w]

Commands

Command	Description
major	Bump major version up (e.g. 1.2.3 → 2.0.0)
minor	Bump minor version up (e.g. 1.2.3 → 1.3.0)
patch	Bump patch version up (e.g. 1.2.3 → 1.2.4)
up	Bump up with interactive prompt
set <version>	Set exact version (no increments)
show	Only show the current version

Flags

Flag	Description
-f <file>	Target file (required)
-p <pattern>	Regexp pattern with a capture group for the version (required)
-w	Write result to file instead of stdout

Examples

package.json

{
  "name": "my-app",
  "version": "1.2.3"
}

bump patch -w -f package.json -p '"version":\s*"(\d+\.\d+\.\d+)"'

pyproject.toml

[project]
name = "my-app"
version = "1.2.3"

bump minor -w -f pyproject.toml -p 'version\s*=\s*"(\d+\.\d+\.\d+)"'

Cargo.toml

[package]
name = "my-app"
version = "1.2.3"

bump major -w -f Cargo.toml -p 'version\s*=\s*"(\d+\.\d+\.\d+)"'

Go source

const version = "1.2.3"

bump patch -w -f version.go -p 'version\s*=\s*"(\d+\.\d+\.\d+)"'

Interactive prompt

bump up -w -f package.json -p '"version":\s*"(\d+\.\d+\.\d+)"'

Set exact version

bump set 2.0.0 -w -f pyproject.toml -p 'version\s*=\s*"(\d+\.\d+\.\d+)"'

Show current version

bump show -f Cargo.toml -p 'version\s*=\s*"(\d+\.\d+\.\d+)"'

License

MIT

Author

mattn