Kraken - Your cute action executor

<p align="center">
  <image src="https://git.front.kjuulh.io/kjuulh/kraken/raw/branch/v0.2/assets/kraken.svg" width="300" height="300"/>
</p>
<h1 align="center">Kraken - Your cute action executor</h1>

## Purpose

The goal of this project is to easily do batch changes or queries a host of
repositories. In large organisations using multi-repository strategies, it may
be painful to change even small things, because there are so many repositories
to go through; Kraken aims to change that.

**DISCLAIMER:** It is still early days, and the api is subject to change.

## Features

- uses a actions repository, where you store all your pending actions or queries
  to be performed across your fleet of repositories. (See \_examples)
- Actions can both execute changes, open pull-requests or in some cases commit
  directly to your preferred branch
  - Actions natively use either shell, go or docker files to execute changes
    (see \_examples/actions)
- Actions can also be analytical, so you can query your fleet for whatever you
  would like
- Works both as a client, or as a server
- Supports SSH/https for fetching repos
- Supports GPG signing
- Supports dry-run mode for easy testing when developing your actions (enabled
  by default on the cli)

## Roadmap

Refer to [roadmap.md](roadmap.md)

## Installation

Kraken comes in two modes. Client or Client -> Server. Kraken can stand alone as
a client, for smaller and less secure changes. However, for organisations, it
may be useful to use Kraken in server mode, which supports more features, and
has extra security built in.

### Client (CLI)

Download executable from [releases](https://github.com/kjuulh/kraken/releases)

#### Or Use docker image

```bash
docker run --rm kasperhermansen/krakencli:latest version
```

#### Or Build from source

```bash
git clone https://github.com/kjuulh/kraken.git
cd kraken

go build cmd/kraken/kraken.go
./kraken version
```

#### Or Build with cuddle

```bash
git clone https://github.com/kjuulh/kraken.git
cd kraken

cuddle_cli x build_cli
```

### Server

We prefer to run the server directly as a docker image.

```bash
docker pull kasperhermansen/krakenserver:latest
docker run -p 9090:80 --rm kasperhermansen/krakenserver:latest
```

#### Or Build from source

```bash
git clone https://github.com/kjuulh/kraken.git
cd kraken

go build cmd/server/server.go
./server version
```

#### Or Build with cuddle

```bash
git clone https://github.com/kjuulh/kraken.git
cd kraken

cuddle_cli x build_server
```

## Usage

**DISCLAIMER:** It is still early days, and the api of the CLI is subject to
change, this provides the aim of the project, but as it is currently in flux,
there may not be as much handholding in the actual usage.

I will focus on the client here, as the server provides the same features,
though available through the cli, but instead as configuration options (see
[CONFIGURATION_SERVER.md](CONFIGURATION_SERVER.md))

Kraken ships with autocomplete built in (courtesy of spf13/cobra). To add:

- Bash: `echo 'source <(kraken completion bash)' >> ~/.bashrc`
- Zsh: `echo 'source <(kraken completion zsh)' >> ~/.zshrc`

### Creating a new action

Creating a new action

```bash
git init my-actions # should only be done once
cd my-actions
kraken tmpl init write-a-readme --command
cat write-a-readme/kraken.yml

# Output
# apiVersion: git.front.kjuulh.io/kjuulh/kraken/blob/main/schema/v1
# name: write-a-readme
# select:
#   repositories: []
# actions:
#   - type: shell
#     entry: "main.sh"
```

Kraken also ships with yaml schema, which should help write the yaml
configuration.

#### Add upstream repositories (victims)

Now add a preferred repository

```
cat << EOF > write-a-readme/kraken.yml
apiVersion: git.front.kjuulh.io/kjuulh/kraken/blob/main/schema/v1
name: write-a-readme
select:
  providers:                           # new
  - gitea: https://git.front.kjuulh.io # new
    organisation: "kjuulh"             # new
actions:
  - type: shell
    entry: "main.sh"
EOF
```

This will take all your repositories under an organisation and run the script
on.

Another could be to use

```bash
cat << EOF > write-a-readme/kraken.yml
apiVersion: git.front.kjuulh.io/kjuulh/kraken/blob/main/schema/v1
name: write-a-readme
select:
  repositories:                                       #new
    - git@git.front.kjuulh.io:kjuulh/kraken.git       #new
    - git@git.front.kjuulh.io:kjuulh/kraken-test.git  #new
actions:
  - type: shell
    entry: "main.sh"
EOF
```

This will just apply to those repositories instead. Both can also be combined
for a shared effect.

### Execute action

To run the script use

```bash
kraken process --path "write-a-readme"
```

This will cause the kraken process to automatically apply the action on the repo
and open a pr.

### Query repositories

Kraken can also be used to query.

```bash
cat << EOF > write-a-readme/kraken.yml
apiVersion: git.front.kjuulh.io/kjuulh/kraken/blob/main/schema/v1
name: write-a-readme
select:
  repositories:
    - git@git.front.kjuulh.io:kjuulh/kraken.git
    - git@git.front.kjuulh.io:kjuulh/kraken-test.git
queries:
  - type: grep
    query: "# README"
EOF
```

Using the same command as above, will return the lines on each repo with those
criteria. Everything is run in docker, even locally, so no need to install fancy
tools.

Do note: All actions will be run as dry-run unless `--apply` is added. This is
to help test locally, as well as not cause serious issues. The server
configuration is pretty much the same, except the command would look like so:
`kraken server process --path "write-a-readme" --apply`. Kraken will try to
infer as much as possible, but it may be needed to apply some extra flags to
specify upstream repositories and such. Kraken will also help you setup keys and
such on the first run, using `kraken setup` or `kraken server setup`.

## Contributing

It is still early days, and as such things are moving fast, I may not be able to
implement features, because I am focusing my energy on the API. That said PRs
are welcome, though they are at your own risk.

### Bugs & features requests

Please use [issues](https://github.com/kjuulh/kraken/issues)

### Development

We use [cuddle](https://git.front.kjuulh.io/kjuulh/cuddle) to improve ease of
use, it is however, not a requirement, and probably won't need to be used
outside core maintainers.

Simply:

```bash
go run cmd/kraken/kraken.go # CLI
go run cmd/server/server.go # Server
```

We follow the `gofmt` formatting, along with optionally but recommend `golines`

If using cuddle

```
cuddle_cli x run # Run both server and client, will do a quick test sweep on the cli
cuddle_cli x watch_run # Automatically refresh both
cuddle_cli x fmt # will format the current code
```