Support custom version tag prefixes for multi-package repositories

Again, let me say how much I love this tool. We’ve been using it for about a month and your responsiveness has been awesome.

One recent thing we’ve come up against is the inability to easily use it on git repos that contain more than one package because of version tag collisions. A common practice when housing more that one package in a single repo is to use a tag pattern like <package>-<version> so that multiple packages can be versioned individually. The problem arrises with auto-changelog when the changelog file is generated, because of the semver.valid() test at https://github.com/CookPete/auto-changelog/blob/b6edd204a38e7eceaaa0c9e71c7e5a9e45cecdf9/src/releases.js#L11.

Have you come up against this or is this use case just not supported?

[cookpete]

--tag-prefix and --ignore-commit-pattern added in 1.4.0

[cookpete]

It should be as simple as installing node.js and then:

# clone and cd into root dir
git clone https://github.com/CookPete/auto-changelog.git # or your own fork
cd auto-changelog

# install dependencies
npm install 

# run tests locally
npm test 

# compile src files to lib
npm run build

# run compiled version locally
node lib/index.js --output custom-output.md 

Just a heads up – I have already added --tag-prefix and --ignore-commit-pattern options, but have not yet pushed/published them. Feel free to play around with things locally though.