mirror of
https://github.com/mermaid-js/mermaid.git
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231 lines
6.0 KiB
Markdown
231 lines
6.0 KiB
Markdown
[](https://travis-ci.org/knsv/mermaid)
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[](https://coveralls.io/github/knsv/mermaid?branch=master)
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[](https://gitter.im/knsv/mermaid?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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[](https://percy.io/Mermaid/mermaid)
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# mermaid
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## Special note regarding version 8.2
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In version 8.2 a security improvement was introduced. A securityLevel configuration was introduced which sets the level of trust to be used on the parsed diagrams.
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* **`strict`**: (default) tags in text are encoded, click functionality is disabled
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* `loose`: tags in text are allowed, click functionality is enabled
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⚠️ **Note** : This changes the default behaviour of mermaid so that after upgrade to 8.2, if the securityLevel is not configured, tags in flowcharts are encoded as tags and clicking is prohibited.
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If your application is taking responsibility for the diagram source security you can set the securityLevel accordingly. By doing this clicks and tags are again allowed.
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```javascript
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mermaidAPI.initialize({
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securityLevel: 'loose'
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});
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```
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**🖖 Keep a steady pulse: mermaid needs more Collaborators [#866](https://github.com/knsv/mermaid/issues/866)**
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Generation of diagrams and flowcharts from text in a similar manner as markdown.
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Ever wanted to simplify documentation and avoid heavy tools like Visio when explaining your code?
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This is why mermaid was born, a simple markdown-like script language for generating charts from text via javascript.
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**Mermaid was nominated and won the JS Open Source Awards (2019) in the category _The most exciting use of technology_!!! Thanks to all involved, people committing pull requests, people answering questions and special thanks to Tyler Long who is helping me maintain the project.**
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### Flowchart
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```
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graph TD;
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A-->B;
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A-->C;
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B-->D;
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C-->D;
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```
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### Sequence diagram
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```
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sequenceDiagram
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participant Alice
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participant Bob
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Alice->>John: Hello John, how are you?
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loop Healthcheck
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John->>John: Fight against hypochondria
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end
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Note right of John: Rational thoughts <br/>prevail!
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John-->>Alice: Great!
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John->>Bob: How about you?
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Bob-->>John: Jolly good!
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```
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### Gantt diagram
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```
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gantt
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dateFormat YYYY-MM-DD
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title Adding GANTT diagram to mermaid
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excludes weekdays 2014-01-10
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section A section
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Completed task :done, des1, 2014-01-06,2014-01-08
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Active task :active, des2, 2014-01-09, 3d
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Future task : des3, after des2, 5d
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Future task2 : des4, after des3, 5d
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```
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### Class diagram - :exclamation: experimental
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```
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classDiagram
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Class01 <|-- AveryLongClass : Cool
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<<interface>> Class01
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Class03 *-- Class04
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Class05 o-- Class06
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Class07 .. Class08
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Class09 --> C2 : Where am i?
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Class09 --* C3
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Class09 --|> Class07
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Class07 : equals()
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Class07 : Object[] elementData
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Class01 : size()
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Class01 : int chimp
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Class01 : int gorilla
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Class08 <--> C2: Cool label
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class Class10 {
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<<service>>
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int id
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size()
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}
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```
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### Git graph - :exclamation: experimental
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```
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gitGraph:
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options
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{
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"nodeSpacing": 150,
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"nodeRadius": 10
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}
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end
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commit
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branch newbranch
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checkout newbranch
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commit
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commit
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checkout master
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commit
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commit
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merge newbranch
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```
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## Installation
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### CDN
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https://unpkg.com/mermaid@<version>/dist/
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Replace `<version>` with expected version number.
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Example: https://unpkg.com/mermaid@7.1.0/dist/
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### Node.js
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yarn add mermaid
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## Documentation
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https://mermaidjs.github.io
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## Sibling projects
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- [mermaid CLI](https://github.com/mermaidjs/mermaid.cli)
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- [mermaid live editor](https://github.com/mermaidjs/mermaid-live-editor)
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- [mermaid webpack demo](https://github.com/mermaidjs/mermaid-webpack-demo)
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- [mermaid Parcel demo](https://github.com/mermaidjs/mermaid-parcel-demo)
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# Request for assistance
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Things are piling up and I have hard time keeping up. To remedy this
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it would be great if we could form a core team of developers to cooperate
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with the future development mermaid.
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As part of this team you would get write access to the repository and would
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represent the project when answering questions and issues.
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Together we could continue the work with things like:
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* adding more types of diagrams like mindmaps, ert diagrams etc
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* improving existing diagrams
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Don't hesitate to contact me if you want to get involved.
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# For contributors
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## Setup
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yarn install
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## Build
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yarn build:watch
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## Lint
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yarn lint
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We use [eslint](https://eslint.org/).
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We recommend you installing [editor plugins](https://eslint.org/docs/user-guide/integrations) so you can get real time lint result.
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## Test
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yarn test
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Manual test in browser:
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open dist/index.html
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## Release
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For those who have the permission to do so:
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Update version number in `package.json`.
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npm publish
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Command above generates files into the `dist` folder and publishes them to npmjs.org.
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# Credits
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Many thanks to the [d3](http://d3js.org/) and [dagre-d3](https://github.com/cpettitt/dagre-d3) projects for providing the graphical layout and drawing libraries!
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Thanks also to the [js-sequence-diagram](http://bramp.github.io/js-sequence-diagrams) project for usage of the grammar for the sequence diagrams. Thanks to Jessica Peter for inspiration and starting point for gantt rendering.
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*Mermaid was created by Knut Sveidqvist for easier documentation.*
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*[Tyler Long](https://github.com/tylerlong) has became a collaborator since April 2017.*
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Here is the full list of the projects [contributors](https://github.com/knsv/mermaid/graphs/contributors).
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