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https://github.com/wtnabe/simple-hd-graph

parse single-tier hierarchy, simplex direction graph from YAML DSL, render PlantUML.
https://github.com/wtnabe/simple-hd-graph

plantuml ruby yaml

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parse single-tier hierarchy, simplex direction graph from YAML DSL, render PlantUML.

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# SimpleHdGraph

parse single-tier hierarchy, simplex direction graph from YAML DSL, render PlantUML.

## Installation

Add this line to your application's Gemfile:

```ruby
gem 'simple-hd-graph'
```

And then execute:

$ bundle

Or install it yourself as:

$ gem install simple-hd-graph

## Usage

$ simple-hd-graph -f FILE

or

$ simple-hd-graph -d DIR

## Format

SimpleHdGraph was designed primarily to describe systems, its constituent resources, and their dependencies.

The two components are as follows:

* Context
* Resource

A single YAML document corresponds to a single context as below:


id: name1
resources:
resource1:
note: memo
has: resource2
resource2:
note: very important
depends:
- name2

features:

* Context can contain mutiple Resources
* Resource can use the `has` keyword to indicate that it owns other Resources
* Context can use the `depends` keyword to indicate its dependency on other Contexts

## Example

input ( streams )

```yaml
id: example1
resources:
web:
hosting: Heroku
runtime: Ruby 2.5
has:
- admin
- storage
admin:
hosting: Google Spreadsheet
runtime: Google Apps Script
storage:
hosting: AWS S3
region: ap-north-east1
---
id: example 2
resources:
web:
hosting: Google AppEngines
runtime: Ruby 2.6
depends:
- example1
```

output

```plantuml
rectangle "example1" as example1 {
object "web" as example1Web {
hosting: Heroku
runtime: Ruby 2.5
}
object "admin" as example1Admin {
hosting: Google Spreadsheet
runtime: Google Apps Script
}
object "storage" as example1Storage {
hosting: AWS S3
region: ap-north-east1
}

example1Web -d-|> example1Admin
example1Web -d-|> example1Storage
}
rectangle "example 2" as example2 {
object "web" as example2Web {
hosting: Google AppEngines
runtime: Ruby 2.6
}
}
example2 -|> example1
```

after plantuml converted

![example output converted by plantuml](example.png)

## Development

After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).

## Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/wtnabe/simple-hd-graph.