Merge pull request #92 from pushtechnology/docker_copy

Support docker copy of resources

Author: alexec

USAGE.md

@@ -8,6 +8,7 @@ Goals
 * `start` - start the containers in order and ensures they are running
 * `stop` - stop all running containers for the project
 * `deploy` - push containers to Docker repository
+* `copy` - copy resources from a Docker container
 * `save` - save images to file, optionally deploy to Maven repository
 
 Pre-requisites
@@ -215,3 +216,12 @@ healthChecks:
 ```
 
 This can be turned off by set `exposeContainerIp` to `false` in `conf.yml`
+
+Copy resources from a docker container
+---
+
+The copy command allows you to extract resources from your docker container, allowing you to use docker as a build engine from within maven.
+The resources to copy are specified by `source` and the location to copy to by `dest`. If `source` is a directory then the directory
+contents will be copied. `dest` can be a file or directory, if a directory then the resource names will be preserved.
+
+

src/main/java/com/alexecollins/docker/mojo/CopyMojo.java

@@ -0,0 +1,38 @@
+package com.alexecollins.docker.mojo;
+
+import com.alexecollins.docker.orchestration.DockerOrchestrator;
+import org.apache.maven.plugins.annotations.LifecyclePhase;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+
+/**
+ * Copy resources from the containers.
+ */
+@Mojo(name = "copy", defaultPhase = LifecyclePhase.PACKAGE)
+public class CopyMojo extends AbstractDockerMojo {
+    /**
+     * Resource to copy out of the docker container.
+     */
+    @Parameter(property = "docker.source")
+    private String resource;
+
+    /**
+     * Resource to copy out of the docker container.
+     */
+    @Parameter(property = "docker.dest")
+    private String dest;
+
+    public String getSource() {
+        return resource;
+    }
+
+    public String getDest() {
+        return dest;
+    }
+
+    @Override
+    protected void doExecute(DockerOrchestrator orchestrator) throws Exception {
+        getLog().info("Copying " + getSource() + " to " + getDest());
+        orchestrator.copy(getSource(), getDest());
+    }
+}