working dir of the buildpack task isthe halfpipe dir

Author: robwhitby

e2e/concourse/buildpack/pipelineExpected.yml

@@ -34,15 +34,15 @@ jobs:
           export GIT_REVISION=`cat ../../../.git/ref`
           echo $DOCKER_CONFIG_JSON > ~/.docker/config.json
           echo pack build eu.gcr.io/halfpipe-io/halfpipe-e2e-pact \
-          --path e2e/concourse/buildpack \
+          --path . \
           --builder paketobuildpacks/builder-jammy-buildpackless-base \
           --buildpack gcr.io/paketo-buildpacks/java:18.5.0 \
           --tag eu.gcr.io/halfpipe-io/halfpipe-e2e-pact:${GIT_REVISION}  \
           --publish \
           --trust-builder
 
           pack build eu.gcr.io/halfpipe-io/halfpipe-e2e-pact \
-          --path e2e/concourse/buildpack \
+          --path . \
           --builder paketobuildpacks/builder-jammy-buildpackless-base \
           --buildpack gcr.io/paketo-buildpacks/java:18.5.0 \
           --tag eu.gcr.io/halfpipe-io/halfpipe-e2e-pact:${GIT_REVISION}  \
@@ -92,7 +92,7 @@ jobs:
           export GIT_REVISION=`cat ../../../.git/ref`
           echo $DOCKER_CONFIG_JSON > ~/.docker/config.json
           echo pack build eu.gcr.io/halfpipe-io/halfpipe-e2e-pact \
-          --path e2e/concourse/buildpack/build/libs \
+          --path build/libs \
           --builder paketobuildpacks/builder-jammy-buildpackless-base \
           --buildpack gcr.io/paketo-buildpacks/java:18.5.0 \
           --buildpack gcr.io/paketo-buildpacks/node:18.5.0 \
@@ -103,7 +103,7 @@ jobs:
           --trust-builder
 
           pack build eu.gcr.io/halfpipe-io/halfpipe-e2e-pact \
-          --path e2e/concourse/buildpack/build/libs \
+          --path build/libs \
           --builder paketobuildpacks/builder-jammy-buildpackless-base \
           --buildpack gcr.io/paketo-buildpacks/java:18.5.0 \
           --buildpack gcr.io/paketo-buildpacks/node:18.5.0 \

renderers/concourse/buildpack.go

@@ -91,12 +91,9 @@ func packScriptArgs(task manifest.Buildpack, man manifest.Manifest, basePath str
 		versionTag = fmt.Sprintf("--tag %s:${BUILD_VERSION} ", task.Image)
 	}
 
-	appPath := basePath
-	if appPath == "" {
-		appPath = "."
-	}
+	appPath := "."
 	if len(task.Path) > 0 {
-		appPath = path.Join(appPath, task.Path)
+		appPath = task.Path
 	}
 
 	out = append(out, `echo $DOCKER_CONFIG_JSON > ~/.docker/config.json`)