[GitHub] [beam] jrmccluskey commented on a change in pull request #16153: [BEAM-13399] Add functionality to download Beam JARs from Maven

[GitBox <gi...@apache.org>]

jrmccluskey commented on a change in pull request #16153:
URL: https://github.com/apache/beam/pull/16153#discussion_r765029645



##########
File path: sdks/go/pkg/beam/core/runtime/xlangx/expansionx/download.go
##########
@@ -0,0 +1,130 @@
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You under the Apache License, Version 2.0
+// (the "License"); you may not use this file except in compliance with
+// the License.  You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package expansionx contains utilities for starting expansion services for
+// cross-language transforms.
+package expansionx
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"os/user"
+	"path/filepath"
+	"strings"
+)
+
+// URL is a type used to differentiate between strings and URLs
+type URL string
+
+const (
+	apacheRepository = URL("https://repo.maven.apache.org/maven2")
+	beamGroupID      = "org/apache/beam"
+	jarCache         = "~/.apache_beam/cache/jars"
+)
+
+// GetBeamJar checks a temporary directory for the desired Beam JAR, downloads the
+// appropriate JAR from Maven if not present, then returns the file path to the
+// JAR.
+func GetBeamJar(gradleTarget, version string) (string, error) {
+	strippedTarget := dropEndOfGradleTarget(gradleTarget)
+	baseURL, jarName := getURLForBeamJar(strippedTarget, version)
+
+	fullURL := baseURL + URL(jarName)

Review comment:
       That's a fair point. Fixed.




-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: github-unsubscribe@beam.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org