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Support Gradle declared external docker image dependencies #12

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Support Gradle declared external docker image dependencies #12

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13 changes: 13 additions & 0 deletions src/main/java/org/terracotta/build/plugins/docker/DockerBuild.java
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,10 @@
import java.nio.file.Files;
import java.nio.file.Path;

import static java.nio.file.StandardOpenOption.CREATE;
import static java.nio.file.StandardOpenOption.TRUNCATE_EXISTING;
import static java.util.Collections.emptyMap;
import static java.util.Collections.singletonList;
import static java.util.stream.Stream.of;

public abstract class DockerBuild extends DockerTask {
Expand Down Expand Up @@ -90,4 +93,14 @@ protected static String readImageId(FileSystemLocation file) {
throw new UncheckedIOException(e);
}
}

protected static void writeImageId(FileSystemLocation file, String imageId) {
Path path = file.getAsFile().toPath();
try {
Files.createDirectories(path.getParent());
Files.write(path, singletonList(imageId), CREATE, TRUNCATE_EXISTING);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
}
14 changes: 14 additions & 0 deletions src/main/java/org/terracotta/build/plugins/docker/DockerEcosystemPlugin.java
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Original file line number Diff line number Diff line change
@@ -1,10 +1,14 @@
package org.terracotta.build.plugins.docker;

import groovy.lang.Closure;
import org.gradle.api.NamedDomainObjectProvider;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.artifacts.Dependency;
import org.gradle.api.artifacts.dsl.DependencyHandler;
import org.gradle.api.attributes.Category;
import org.gradle.api.file.RegularFile;
import org.gradle.api.provider.Provider;

import java.util.Map;
Expand Down Expand Up @@ -34,6 +38,16 @@ public void apply(Project project) {
});

project.getExtensions().create("docker", DockerExtension.class, dockerImageIds);

DependencyHandler dependencies = project.getDependencies();
dependencies.getExtensions().add("external", new Closure<Dependency>(dependencies, dependencies) {

Dependency doCall(String name, String imageId) {
Provider<RegularFile> imageIdFile = project.getLayout().getBuildDirectory().file(name + ".iid");
DockerBuild.writeImageId(imageIdFile.get(), imageId);
return ((DependencyHandler) getOwner()).create(project.files(imageIdFile));
}
});
}

public static class DockerExtension {
Expand Down