The mermaid shortcode supports diagrams in Hugo with Mermaid library.
Mermaid is a library helping you to generate diagram and flowcharts from text, in a similar manner as Markdown.
Just insert your mermaid code in the mermaid shortcode and that’s it.
Flowchart
Example flowchart mermaid input:
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{{< mermaid >}}
graph LR;
A[Hard edge] -->|Link text| B(Round edge)
B --> C{Decision}
C -->|One| D[Result one]
C -->|Two| E[Result two]
{{< /mermaid >}}
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The rendered output looks like this:
Sequence Diagram
Example sequence diagram mermaid input:
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{{< mermaid >}}
sequenceDiagram
participant Alice
participant Bob
Alice->>John: Hello John, how are you?
loop Healthcheck
John->John: Fight against hypochondria
end
Note right of John: Rational thoughts <br/>prevail...
John-->Alice: Great!
John->Bob: How about you?
Bob-->John: Jolly good!
{{< /mermaid >}}
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The rendered output looks like this:
Gantt
Example Gantt mermaid input:
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{{< mermaid >}}
gantt
dateFormat YYYY-MM-DD
title Adding GANTT diagram to mermaid
excludes weekdays 2014-01-10
section A section
Completed task :done, des1, 2014-01-06,2014-01-08
Active task :active, des2, 2014-01-09, 3d
Future task : des3, after des2, 5d
Future task2 : des4, after des3, 5d
{{< /mermaid >}}
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The rendered output looks like this:
Class Diagram
Example class diagram mermaid input:
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{{< mermaid >}}
classDiagram
Animal <|-- Duck
Animal <|-- Fish
Animal <|-- Zebra
Animal : +int age
Animal : +String gender
Animal: +isMammal()
Animal: +mate()
class Duck{
+String beakColor
+swim()
+quack()
}
class Fish{
-int sizeInFeet
-canEat()
}
class Zebra{
+bool is_wild
+run()
}
{{< /mermaid >}}
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The rendered output looks like this:
State Diagram
Example state diagram mermaid input:
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{{< mermaid >}}
stateDiagram-v2
[*] --> Still
Still --> [*]
Still --> Moving
Moving --> Still
Moving --> Crash
Crash --> [*]
{{< /mermaid >}}
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The rendered output looks like this:
Git Graph
Example git graph mermaid input:
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{{< mermaid >}}
gitGraph
commit
commit
branch develop
checkout develop
commit
commit
checkout main
merge develop
commit
commit
{{< /mermaid >}}
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The rendered output looks like this:
Entity Relationship Diagram
Example entity-relationship diagram mermaid input:
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{{< mermaid >}}
erDiagram
CUSTOMER ||--o{ ORDER : places
ORDER ||--|{ LINE-ITEM : contains
CUSTOMER }|..|{ DELIVERY-ADDRESS : uses
{{< /mermaid >}}
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The rendered output looks like this:
User Journey
Example user journey mermaid input:
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{{< mermaid >}}
journey
title My working day
section Go to work
Make tea: 5: Me
Go upstairs: 3: Me
Do work: 1: Me, Cat
section Go home
Go downstairs: 5: Me
Sit down: 5: Me
{{< /mermaid >}}
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The rendered output looks like this:
Pie Chart
Example pie chart mermaid input:
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{{< mermaid >}}
pie
"Dogs" : 386
"Cats" : 85
"Rats" : 15
{{< /mermaid >}}
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The rendered output looks like this:
Requirement Diagram
Example requirement diagram mermaid input:
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{{< mermaid >}}
requirementDiagram
requirement test_req {
id: 1
text: the test text.
risk: high
verifymethod: test
}
element test_entity {
type: simulation
}
test_entity - satisfies -> test_req
{{< /mermaid >}}
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The rendered output looks like this:
