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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,158 @@ | ||
| /* | ||
| * The authors of this file license it 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 com.github.heuermh.cooper; | ||
|
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| import java.util.Arrays; | ||
| import java.util.List; | ||
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| import java.util.concurrent.Callable; | ||
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| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
|
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| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
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| import picocli.AutoComplete.GenerateCompletion; | ||
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| import picocli.CommandLine.Command; | ||
| import picocli.CommandLine.HelpCommand; | ||
| import picocli.CommandLine.ITypeConverter; | ||
| import picocli.CommandLine.ScopeType; | ||
|
|
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| import software.amazon.awssdk.regions.Region; | ||
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| import software.amazon.awssdk.services.s3.S3Client; | ||
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| import software.amazon.awssdk.services.s3.model.ListObjectsV2Request; | ||
| import software.amazon.awssdk.services.s3.model.ListObjectsV2Response; | ||
| import software.amazon.awssdk.services.s3.model.S3Exception; | ||
| import software.amazon.awssdk.services.s3.model.S3Object; | ||
|
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| import software.amazon.awssdk.services.s3.paginators.ListObjectsV2Iterable; | ||
|
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| /** | ||
| * Cooper ls command. | ||
| * | ||
| * @author Michael Heuer | ||
| */ | ||
| @Command(name = "ls") | ||
| public final class Ls implements Callable<Integer> { | ||
|
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| @picocli.CommandLine.Option( | ||
| names = { "--region" }, | ||
| type = Region.class, | ||
| converter = RegionConverter.class, | ||
| defaultValue = "us-west-2" | ||
| ) | ||
| private Region region; | ||
|
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| @picocli.CommandLine.Option(names = { "--human-readable" }) | ||
| private boolean humanReadable; | ||
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| @picocli.CommandLine.Option(names = { "--show-header" }) | ||
| private boolean showHeader; | ||
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| @picocli.CommandLine.Option(names = { "--reverse-columns" }) | ||
| private boolean reverseColumns; | ||
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| @picocli.CommandLine.Option(names = { "--verbose" }) | ||
| private boolean verbose; | ||
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| @picocli.CommandLine.Parameters(index = "0..*", arity = "1..*", descriptionKey = "uris") | ||
| private List<String> uris; | ||
|
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| /** Logger. */ | ||
| static Logger logger; | ||
|
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| /** Human readable formatter. */ | ||
| static final HumanReadableFormatter FORMATTER = new HumanReadableFormatter(); | ||
|
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| /** s3 bucket and prefix regex pattern. */ | ||
| static final Pattern S3_URI = Pattern.compile("^s3:\\/\\/([a-zA-Z-]+)\\/*(.*)$"); | ||
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| @Override | ||
| public Integer call() throws Exception { | ||
|
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| S3Client s3 = S3Client.builder() | ||
| .region(region) | ||
| .build(); | ||
|
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| if (showHeader) { | ||
| System.out.println(reverseColumns ? "size\turi" : "uri\tsize"); | ||
| } | ||
|
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| for (String uri : uris) { | ||
| Matcher m = S3_URI.matcher(uri); | ||
| if (m.matches()) { | ||
| String bucket = m.group(1); | ||
| String prefix = m.group(2); | ||
|
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| logger.info("valid uri={} bucket={} prefix={}", uri, bucket, prefix); | ||
|
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| ListObjectsV2Request.Builder requestBuilder = ListObjectsV2Request.builder() | ||
| .bucket(bucket); | ||
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| if (prefix != null && prefix.trim().length() > 0) { | ||
| requestBuilder = requestBuilder.prefix(prefix); | ||
| } | ||
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| ListObjectsV2Request request = requestBuilder.build(); | ||
|
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| logger.info("ListObjectsV2 request={}", request.toString()); | ||
|
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| ListObjectsV2Iterable responses = s3.listObjectsV2Paginator(request); | ||
| for (ListObjectsV2Response response : responses) { | ||
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| logger.info("ListObjectsV2 response={}", response.toString()); | ||
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| for (S3Object content : response.contents()) { | ||
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| String s3Path = "s3://" + bucket + "/" + content.key(); | ||
|
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| if (s3Path.startsWith(uri)) { | ||
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| String size = humanReadable ? FORMATTER.format(content.size()) : String.valueOf(content.size()); | ||
| System.out.println(reverseColumns ? size + "\t" + s3Path : s3Path + "\t" + size); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| else { | ||
| logger.warn("uri {} not a valid s3 URI", uri); | ||
| } | ||
| } | ||
| return 0; | ||
| } | ||
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|
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| /** | ||
| * Main. | ||
| * | ||
| * @param args command line args | ||
| */ | ||
| public static void main(final String[] args) { | ||
|
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| // cheat to set system property before initializing logger | ||
| if (Arrays.asList(args).contains("--verbose")) { | ||
| System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", "info"); | ||
| } | ||
| logger = LoggerFactory.getLogger(Cooper.class); | ||
|
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| System.exit(new CommandLine(new Ls()).execute(args)); | ||
| } | ||
| } |
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