This plugin generates a Mermaid graph of your project's module relationships, so you can see how your modules interact at a glance.
A diagram about the current system is only useful if it's generated. If it is produced by hand it documents the author's belief, not the system. Still, important, but not an input for decision making. Development is primarily decision-making. Enable it through custom tools. source
You can read more about the background story of this plugin here.
- Automatically append/update the generated graph to your project's README file.
- Enables you to focus and highlight specific nodes in the graph
- Exclude specific configurations from the graph.
- Built in themes and customization options.
- The raw code block automatically renders as a graph on both GitHub, Gitlab, Jetbrains IDEs and VSCode .
You'll just need to add it to your project's root build.gradle or build.gradle.kts file.
build.gradle (Groovy DSL)
plugins {
id "dev.iurysouza.modulegraph" version "0.10.0"
}Using Legacy Plugin application
buildscript {
repositories {
maven {
url "https://plugins.gradle.org/m2/"
}
}
dependencies {
classpath "dev.iurysouza:modulegraph:0.10.0"
}
}
apply plugin: "dev.iurysouza.modulegraph"import dev.iurysouza.modulegraph.LinkText
import dev.iurysouza.modulegraph.ModuleType
import dev.iurysouza.modulegraph.Orientation
import dev.iurysouza.modulegraph.Theme
moduleGraphConfig {
readmePath = "./README.md"
heading = "### Module Graph"
// showFullPath = false // optional
// orientation = Orientation.LEFT_TO_RIGHT // optional
// linkText = LinkText.NONE // optional
// excludedConfigurationsRegex = ".*test.*" // optional
// excludedModulesRegex = ".*moduleName.*" // optional
// focusedModulesRegex = ".*(projectName).*" // optional
// rootModulesRegex = ".*moduleName.*" // optional
// setStyleByModuleType = true // optional
// theme = Theme.NEUTRAL // optional
// Or you can fully customize it by using the BASE theme:
// theme = new Theme.BASE(
// [
// "primaryTextColor": "#F6F8FAff", // All text colors
// "primaryColor": "#5a4f7c", // Node color
// "primaryBorderColor": "#5a4f7c", // Node border color
// "tertiaryColor": "#40375c", // Container box background
// "lineColor": "#f5a623",
// "fontSize": "12px"
// ],
// focusColor = "#F5A622" // Color of the focused nodes if any
// )
// theme.set(
// new Theme.BASE(
// themeVariables: [
// "primaryTextColor": "#F6F8FAff", // All text colors
// "primaryColor": "#5a4f7c", // Node color
// "primaryBorderColor": "#5a4f7c", // Node border color
// "tertiaryColor": "#40375c", // Container box background
// "lineColor": "#f5a623",
// "fontSize": "12px"
// ],
// focusColor: "#F5A622", // Color of the focused nodes if any
// moduleTypes: [
// new ModuleType.AndroidLibrary("#2C4162")
// ]
// )
// )
// You can add additional graphs.
// A separate graph will be generated for each config below.
// graph(
// "./README.md",
// "# Graph with root: gama",
// ) {
// it.rootModulesRegex = ".*gama.*"
// }
// graph(
// "./SomeOtherReadme.md",
// "# Graph",
// ) {
// it.rootModulesRegex = ".*zeta.*"
// }
}build.gradle.kts (Kotlin DSL)
plugins {
id("dev.iurysouza.modulegraph") version "0.10.0"
}Using Legacy Plugin application
buildscript {
repositories {
maven {
url = uri("https://plugins.gradle.org/m2/")
}
}
dependencies {
classpath("dev.iurysouza:modulegraph:0.10.0")
}
}
apply(plugin = "dev.iurysouza:modulegraph")import dev.iurysouza.modulegraph.LinkText
import dev.iurysouza.modulegraph.ModuleType
import dev.iurysouza.modulegraph.Orientation
import dev.iurysouza.modulegraph.Theme
moduleGraphConfig {
readmePath.set("./README.md")
heading = "### Module Graph"
// showFullPath.set(false) // optional
// orientation.set(Orientation.LEFT_TO_RIGHT) //optional
// linkText.set(LinkText.NONE) // optional
// setStyleByModuleType.set(true) // optional
// excludedConfigurationsRegex.set(".*test.*") // optional
// excludedModulesRegex.set(".*moduleName.*") // optional
// focusedModulesRegex.set(".*(projectName).*") // optional
// rootModulesRegex.set(".*moduleName.*") // optional
// theme.set(Theme.NEUTRAL) // optional
// or you can fully customize it by using the BASE theme:
// Theme.BASE(
// themeVariables = mapOf(
// "primaryTextColor" to "#F6F8FAff", // Text
// "primaryColor" to "#5a4f7c", // Node
// "primaryBorderColor" to "#5a4f7c", // Node border
// "tertiaryColor" to "#40375c", // Container box background
// "lineColor" to "#f5a623",
// "fontSize" to "12px",
// ),
// focusColor = "#F5A622",
// moduleTypes = listOf(
// ModuleType.AndroidLibrary("#2C4162"),
// )
// ),
// )
// You can add additional graphs.
// A separate graph will be generated for each config below.
// graph(
// readmePath = "./README.md",
// heading = "# Graph with root: gama",
// ) {
// rootModulesRegex = ".*gama.*"
// }
// graph(
// readmePath = "./SomeOtherReadme.md",
// heading = "# Graph",
// ) {
// rootModulesRegex = ".*zeta.*"
// }
}Make sure you have a heading in your README with the same format as the one you set in the
configuration, if not, the plugin will append it with the graph to the end of the file.
After that, just run the following command:
./gradlew createModuleGraphNow, just look for the generated graph in your project's README file.
Each Graph has the following configuration parameters.
Required settings:
- readmePath: The path of the file where the dependency graph will be added.
- heading: The heading where the dependency graph will be added.
Optional settings:
- setStyleByModuleType: Whether to style the modules based on their type (KotlinMultiplatform, Android Library, etc). Default is
false. Read more. - focusedModulesRegex: The regex to match nodes in the graph (project names) that should be focused. By
default, no nodes are focused.
If set, the matching nodes will be highlighted and only related nodes will be shown. The color can be customized via the
focusColorproperty fromTheme.BASE. Read more. - showFullPath: Whether to show the full path of the modules in the graph. Default is
false. This removes subgraphs. - theme: The mermaid theme to be used for styling
the graph. Default is
NEUTRAL.- Further customization is possible by setting the
themeVariablesproperty on theBASEtheme. Check the mermaid docs for more info.
- Further customization is possible by setting the
- orientation:
The orientation that the
flowchart will have. Default is
LEFT_TO_RIGHT. - linkText:
Whether to add information as text on links in graph. Available values:
NONE: No text added. (Default.)CONFIGURATION: The name of the configuration which the dependency belongs to (e.g. " implementation", "compileOnly", "jsMain").
- excludedConfigurationsRegex:
- Regex matching the configurations which should be ignored. e.g. "implementation", "testImplementation".
- excludedModulesRegex:
- Regex matching the modules which should be ignored.
- rootModules:
- Regex matching the modules that should be used as root modules. If this value is supplied, the generated graph will only include dependencies (direct and transitive) of root modules. In other words, the graph will only include modules that can be reached from a root module.
You can apply configuration options directly in the root of the moduleGraphConfig block like so:
moduleGraphConfig {
readmePath.set("${rootDir}/README.md")
heading.set("### Module Graph")
showFullPath.set(false)
}When you do this, you are configuring the 'Primary Graph'. This is useful if you only need one graph to be generated.
But sometimes you want multiple graphs to be generated.
To achieve this you can add additional graph configs using graph.
Each additional graph has exactly the same configuration parameters as the primary graph:
moduleGraphConfig {
graph(
readmePath = "${rootDir}/README.md",
heading = "### Module Graph",
) {
showFullPath = false
}
}Note that graph requires the required parameters to be provided in the function call,
while the optional parameters can be provided in the configuration block.
You can add as many graph calls as you like: each one will generate a separate graph:
moduleGraphConfig {
graph(
readmePath = "${rootDir}/README.md",
heading = "### Module Graph",
) {
showFullPath = false
}
graph(
readmePath = "${rootDir}/README.md",
heading = "### Another Module Graph",
) {
showFullPath = true
}
}For this plugin to work, you need to configure at least one graph.
This can be via the Primary Graph, or via a graph call.
If using only graph calls, then the Primary Graph doesn't need to be setup at all!
You can see this in the samples above.
This is an example of using the plugin on an Android project with a multimodule setup. Here, the following configuration was used:
moduleGraphConfig {
readmePath.set("${rootDir}/README.md")
heading.set("### Module Graph")
theme.set(
Theme.BASE(
mapOf(
"primaryTextColor" to "#fff",
"primaryColor" to "#5a4f7c",
"primaryBorderColor" to "#5a4f7c",
"lineColor" to "#f5a623",
"tertiaryColor" to "#40375c",
"fontSize" to "12px",
),
focusColor = "#FA8140"
),
)
}And we got this graph:
%%{
init: {
'theme': 'base',
'themeVariables': {"primaryTextColor":"#fff","primaryColor":"#5a4f7c","primaryBorderColor":"#5a4f7c","lineColor":"#f5a623","tertiaryColor":"#40375c","fontSize":"12px"}
}
}%%
graph LR
subgraph app
main
playground
end
subgraph core
common
design-system
footballinfo
reddit
webview-to-native-player
end
subgraph features
match-day
match-thread
end
footballinfo --> common
match-day --> common
match-day --> footballinfo
match-day --> design-system
match-day --> reddit
match-thread --> webview-to-native-player
match-thread --> common
match-thread --> footballinfo
match-thread --> design-system
match-thread --> reddit
playground --> webview-to-native-player
playground --> match-thread
playground --> match-day
playground --> design-system
reddit --> common
webview-to-native-player --> common
main --> match-thread
main --> match-day
main --> design-system
main --> common
Too much information? We can fix that.
If you want to focus on specific nodes in the graph, you can use the focusedModulesRegex property in the
configuration.
moduleGraphConfig {
//... keep previous configs
focusedModulesRegex.set(".*(reddit).*")
}By doing this, the plugin will highlight the nodes that match the pattern, and will only show the other nodes that are connected to them. It will generate the following graph:
%%{
init: {
'theme': 'base',
'themeVariables': {"primaryTextColor":"#fff","primaryColor":"#5a4f7c","primaryBorderColor":"#5a4f7c","lineColor":"#f5a623","tertiaryColor":"#40375c","fontSize":"12px"}
}
}%%
graph LR
subgraph core
common
reddit
end
subgraph features
match-day
match-thread
end
match-day --> reddit
match-thread --> reddit
reddit --> common
classDef focus fill:#E04380,stroke:#fff,stroke-width:2px,color:#fff;
class reddit focus
Since it's just a regex pattern, you can, for example, match multiple nodes by using the | operator,
or you can come up with whatever cryptic regex patterns you want if you're into that kind of thing.
When was the last time Regex made you happy? =)
// This matches module names that contain "reddit" or "match-day"
focusedModulesRegex.set(".*(reddit|match-day).*")%%{
init: {
'theme': 'base',
'themeVariables': {"primaryTextColor":"#fff","primaryColor":"#5a4f7c","primaryBorderColor":"#5a4f7c","lineColor":"#f5a623","tertiaryColor":"#40375c","fontSize":"12px"}
}
}%%
graph LR
subgraph app
main
playground
end
subgraph core
common
design-system
footballinfo
reddit
end
subgraph features
match-day
match-thread
end
match-day --> common
match-day --> footballinfo
match-day --> design-system
match-day --> reddit
match-thread --> reddit
playground --> match-day
reddit --> common
main --> match-day
classDef focus fill:#E04380,stroke:#fff,stroke-width:2px,color:#fff;
class match-day focus
class reddit focus
This feature enables detecting and rendering modules based on their type, eg.: kotlin, java, android-library, kotlin-multiplatform, etc
Just toggle this option on:
moduleGraphConfig {
//..
setStyleByModuleType.set(true)
}That's it. Just run the task and you'll get a graph identifying modules by their type.
We have default styling for these module types:
- Android Application
- React Native
- Kotlin Multiplatform
- Android Library
- Kotlin
- Java Library
- Java
These supported plugins are pre-configured with a default color pattern, but can be customized further if needed. You can also add you own module type.
The supported plugins already have a default color pattern , but you can also customize them via the Theme.BASE
object.
Additionally, you can detect and customize styling for other plugins by providing a CustomPlugin with an id and
its color. The ID will be used to match a Gradle plugin applied to that module and will have higher precedence than
all the others. For example, if you have a plugin defined with the app.compose id, you can pass it
as Custom("app.compose", "#0E0E0E") and the graph will be generated accordingly.
eg.:
import dev.iurysouza.modulegraph.ModuleType.*
import dev.iurysouza.modulegraph.Theme
moduleGraphConfig {
theme.set(
Theme.BASE(
moduleTypes = listOf(
Custom(id = "app.compose", color = "#0E0E0E"),
AndroidApp("#3CD483"),
AndroidLibrary("#292B2B"),
),
),
)
}Below is an example of how the module graph would show up:
%%{
init: {
'theme': 'base',
'themeVariables': {"lineColor":"#676767"},
}
}%%
graph LR
subgraph app
playground
main
end
subgraph core
webview-to-native-player
common
footballinfo
design-system
reddit
end
subgraph features
match-thread
match-day
end
match-thread --> webview-to-native-player
match-thread --> common
match-thread --> footballinfo
match-thread --> design-system
match-thread --> reddit
match-day --> common
match-day --> footballinfo
match-day --> design-system
match-day --> reddit
playground --> webview-to-native-player
playground --> match-thread
playground --> design-system
playground --> match-day
main --> match-thread
main --> match-day
main --> design-system
main --> common
reddit --> common
webview-to-native-player --> common
footballinfo --> common
classDef android_library fill:#292B2B,stroke:#fff,stroke-width:2px,color:#fff;
classDef app_compose fill:#82AAFF,stroke:#fff,stroke-width:2px,color:#fff;
classDef android_application fill:#3CD483,stroke:#fff,stroke-width: 2px,color:#fff;
class match-thread app_compose
class webview-to-native-player android_library
class common android_library
class footballinfo android_library
class design-system app_compose
class reddit android_library
class match-day app_compose
class playground android_application
class main android_application
Note
Modules can only have one type. So we're using a hardcoded precedence order for identifying them.
The system determines the module type based on the hierarchy of applied plugins. For instance:
- A module with both
React NativeandAndroid Librarywill be identified asReact Native. - A module with both
Android LibraryandKotlinwill be identified asAndroid Library.
Feel free to open an issue or submit a pull request for any bugs/improvements.
This project is licensed under the MIT License - see the License file for details.
If you found this project useful or want to support the development, consider buying me a coffee! Any donations are greatly appreciated and help to support the development. Relevant xkcd.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent
