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Output the dependency graph in png format with graphviz-java #7

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Merged
merged 1 commit into from
Feb 16, 2025
Merged

Output the dependency graph in png format with graphviz-java #7

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1 change: 1 addition & 0 deletions cacheinvalidationindex/build.gradle.kts
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Expand Up @@ -18,6 +18,7 @@ gradlePlugin {

dependencies {
implementation(kotlin("stdlib-jdk8"))
implementation(libs.graphviz.java)
implementation(libs.jgrapht.core)
implementation(libs.jgrapht.io)

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2 changes: 1 addition & 1 deletion ...index/src/main/java/com/ivanalvarado/cacheinvalidationindex/CacheInvalidationIndexTask.kt
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Expand Up @@ -29,7 +29,7 @@ abstract class CacheInvalidationIndexTask @Inject constructor(
val affectedSubgraphs = affectedSubgraphs(dag)
graphVizWriter.writeGraph(
graph = affectedSubgraphs.find { it.node == project.path }!!.affectedDag,
file = project.file("build/graph.dot")
file = project.file("build/cacheinvalidationindex/dependency_graph.png")
)
}
}
11 changes: 10 additions & 1 deletion ...ationindex/src/main/java/com/ivanalvarado/cacheinvalidationindex/writer/GraphVizWriter.kt
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@@ -1,10 +1,13 @@
package com.ivanalvarado.cacheinvalidationindex.writer

import com.ivanalvarado.cacheinvalidationindex.domain.model.DependencyEdge
import guru.nidi.graphviz.engine.Format
import guru.nidi.graphviz.engine.Graphviz
import org.jgrapht.graph.AbstractGraph
import org.jgrapht.nio.DefaultAttribute
import org.jgrapht.nio.dot.DOTExporter
import java.io.File
import java.io.StringWriter

class GraphVizWriter {

Expand All @@ -25,8 +28,14 @@ class GraphVizWriter {
}
}

val writer = StringWriter()
exporter.exportGraph(graph, writer)
val dotString = writer.toString()

file.delete()
exporter.exportGraph(graph, file)
Graphviz.fromString(dotString)
.render(Format.PNG)
.toFile(file)
}

private fun String.sanitize(): String {
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2 changes: 2 additions & 0 deletions gradle/libs.versions.toml
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@@ -1,10 +1,12 @@
[versions]
graphviz-java = "0.18.1"
jetbrainsKotlinJvm = "1.9.24"
jgrapht = "1.5.1"
junit = "4.13.2"
truth = "1.4.4"

[libraries]
graphviz-java = { group = "guru.nidi", name = "graphviz-java", version.ref = "graphviz-java" }
jgrapht-core = { group = "org.jgrapht", name = "jgrapht-core", version.ref = "jgrapht" }
jgrapht-io = { group = "org.jgrapht", name = "jgrapht-io", version.ref = "jgrapht" }
junit = { group = "junit", name = "junit", version.ref = "junit" }
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