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https://github.com/romnn/configo

Dead simple handling of config structs containing optional values for your golang app.
https://github.com/romnn/configo

configuration go golang merge null optionals options-parsing override settings

Last synced: 10 months ago
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Dead simple handling of config structs containing optional values for your golang app.

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## configo

[![Build Status](https://github.com/romnn/configo/workflows/test/badge.svg)](https://github.com/romnn/configo/actions)
[![GitHub](https://img.shields.io/github/license/romnn/configo)](https://github.com/romnn/configo)
[![GoDoc](https://godoc.org/github.com/romnn/configo?status.svg)](https://godoc.org/github.com/romnn/configo)
[![Test Coverage](https://codecov.io/gh/romnn/configo/branch/master/graph/badge.svg)](https://codecov.io/gh/romnn/configo)
[![Release](https://img.shields.io/github/release/romnn/configo)](https://github.com/romnn/configo/releases/latest)

Dead simple handling of config structs containing optional values for your golang app!

#### Usage

```golang
import (
"fmt"
opt "github.com/romnn/configo"
)

type myAppConfig struct {
EnableExperimental *opt.Flag
}

var defaultConfig myAppConfig = myAppConfig{
EnableExperimental: opt.SetFlag(false),
}

func main() {
userConfig := myAppConfig{
EnableExperimental: opt.SetFlag(true),
}
// Merge user config with the default config
// Will only set values that have NOT been set
// Otherwise, use OverrideConfig
opt.MergeConfig(&userConfig, defaultConfig)
didEnableExperimental := opt.Enabled(userConfig.EnableExperimental)
fmt.Printf("EnableExperimental=%t\n", didEnableExperimental) // true
}
```

For more examples, see `examples/`.

#### Development

###### Prerequisites

Before you get started, make sure you have installed the following tools::

$ python3 -m pip install -U cookiecutter>=1.4.0
$ python3 -m pip install pre-commit bump2version invoke ruamel.yaml halo
$ go get -u golang.org/x/tools/cmd/goimports
$ go get -u golang.org/x/lint/golint
$ go get -u github.com/fzipp/gocyclo
$ go get -u github.com/mitchellh/gox # if you want to test building on different architectures

**Remember**: To be able to excecute the tools downloaded with `go get`,
make sure to include `$GOPATH/bin` in your `$PATH`.
If `echo $GOPATH` does not give you a path make sure to run
(`export GOPATH="$HOME/go"` to set it). In order for your changes to persist,
do not forget to add these to your shells `.bashrc`.

With the tools in place, it is strongly advised to install the git commit hooks to make sure checks are passing in CI:
```bash
invoke install-hooks
```

You can check if all checks pass at any time:
```bash
invoke pre-commit
```

Note for Maintainers: After merging changes, tag your commits with a new version and push to GitHub to create a release:
```bash
bump2version (major | minor | patch)
git push --follow-tags
```

#### Note

This project is still in the alpha stage and should not be considered production ready.