# go-bumpver

_Inspired by the python bump2version tool._

bumpver - next semantec version in a given sequence

## Usage

```bash
bumpver part [major|minor|patch] file [-|file] [flags]
```

## Why?

- Most version bumpers are fairly tightly coupled to git.
- Most like to make commits for you
- Few seem to have useful pre release mechanisms
- None seem to provide simple interfaces
- Lack of unix philosophy

Many tools touch git and some opinionatedly like to touch it.

## How?

`go-bumpver` takes the sequence of version(s) from a file or stdin and prints the next version. It drops invalid versions in the sequence and only uses valid ones. It does not make a tag or change any state in git or any other VCS it only prints the next version.

### Inputs

**stdin**
```bash
❯ echo "1.1.1\n1.2.1" | bumpver patch -
1.2.2%
```

**file**
```bash
❯ echo v0.1.0 > VERSION
❯ bumpver patch VERSION
0.1.1%
```

**local repo**
```bash
❯ bumpver patch <(git tag -l)
3.3.2%
```

**remote repo**
```bash
❯ bumpver patch <(git ls-remote --tags --refs origin v\* | awk -F'[ /]' '{ print $NF }')
3.3.4%
```

### Bumps

**a patch**
```bash
❯ bumpver patch <(git tag -l)
3.3.2%
```

**a minor**
```bash
❯ bumpver minor <(git tag -l)
3.4.0%
```

**a major**
```bash
❯ bumpver major <(git tag -l)
4.0.0%
```