java Sonatype Nexus 3 - 获取最新快照
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Sonatype Nexus 3 - get latest snapshot
提问by Daniel
We've just upgraded out nexus installation to the latest release (3.x). Is there any way to get the latest version of a given snapshot artifact? Nexus 2 had a nice API which is not supported anymore.
我们刚刚将 nexus 安装升级到最新版本 (3.x)。有没有办法获得给定快照工件的最新版本？Nexus 2 有一个很好的 API，它不再受支持。
Same question (but for the old version) has been answered here: Sonatype Nexus REST Api fetch latest build version
同样的问题（但对于旧版本）已在此处回答： Sonatype Nexus REST Api fetch latest build version
Any ideas are highly appreciated.
任何想法都受到高度赞赏。
Best, Daniel
最好的，丹尼尔
回答by Peter Lynch
Nexus 2 had a nice API which is not supported anymore.
Nexus 2 有一个很好的 API，它不再受支持。
It sounds like you are referring to these:
听起来您指的是这些：
/service/local/artifact/maven/content
/service/local/artifact/maven/redirect
If you're asking to find the latest x.y.z-SNAPSHOT version where the x, y, z are guessed - Nexus never had this functionality (it worked only for plugins).
如果您要求找到猜测 x、y、z 的最新 xyz-SNAPSHOT 版本 - Nexus 从未拥有此功能（它仅适用于插件）。
This is simply untrue - see the following article which shows clearly you can specify LATEST, RELEASE or SNAPSHOT base versions.
这完全是不真实的 - 请参阅以下文章，其中清楚地表明您可以指定 LATEST、RELEASE 或 SNAPSHOT 基本版本。
It's possible but not in a 1-liner.
这是可能的，但不是 1-liner。
Yes - unless you have a tool handy such as artifact-resolverwhich does uses a one line command to fetch an artifact.
是的 - 除非您有一个方便的工具，例如artifact-resolver，它确实使用单行命令来获取工件。
回答by Kevin Pauli
What a joke re: Nexus 3 having no REST API.
真是个笑话：Nexus 3 没有 REST API。
I found a hack that alleviates my problem. Turns out that ansible has a nice maven_artifactmodule that is somehow able to figure out the latest snapshot. And you can run ansible locally. So it ends up looking like this:
我找到了一个可以缓解我的问题的黑客。事实证明ansible有一个不错的maven_artifact模块，它能够以某种方式找出最新的快照。你可以在本地运行 ansible。所以它最终看起来像这样：
ansible all -i localhost, -c local -m maven_artifact -a "repository_url=https://my-nexus/repository/maven-snapshots/ group_id=com.whatever artifact_id=my-artifact version=2.0-SNAPSHOT dest=./my-artifact.jar"
回答by user1717259
Asof April 2019 there IS a REST API in Sonatype Nexus 3 for accessing the latest artefact
Asof 2019 年 4 月在 Sonatype Nexus 3 中有一个 REST API 用于访问最新的人工制品
Documentation is here
文档在这里
http://community.sonatype.com/t/nxrm-3-16-rest-search-and-filtering-enhancements/1586
http://community.sonatype.com/t/nxrm-3-16-rest-search-and-filtering-enhancements/1586
Use this endpoint /service/rest/v1/search/assets/downloadwith repository, groupand namearguments. Sorting by versionwill get you the latest timestamped snapshot.
将此端点/service/rest/v1/search/assets/download与repository,group和name参数一起使用。排序依据version将为您提供最新的带时间戳的快照。
回答by Stanislav Bashkyrtsev
If you ask for x.y.z-SNAPSHOTthen by default the latest x.y.z-timestampsnapshot version will be downloaded. No need to do anything additional
如果您要求，x.y.z-SNAPSHOT则默认情况下x.y.z-timestamp将下载最新的快照版本。无需做任何额外的事情
If you're asking to find the latest x.y.z-SNAPSHOTversion where the x, y, zare guessed - Nexus never had this functionality(it worked only for plugins). And I don't think there is any good use case for this. If this is needed, you're probably doing something wrong. You always should work with a specific version. Actually even for the 1st functionality I can't think of good use cases.
如果您要求找到猜测, ,的最新x.y.z-SNAPSHOT版本- Nexus 从来没有这个功能（它只适用于插件）。我认为这没有任何好的用例。如果需要这样做，您可能做错了什么。您应该始终使用特定版本。实际上，即使对于第一个功能，我也想不出好的用例。xyz
回答by didlich
recently we faced the same problem with nexus version 3.12.1-01, so there is definitely not rest api to get latest snapshot directly
最近我们在nexus 3.12.1-01版本遇到了同样的问题，所以肯定没有rest api直接获取最新的快照
we were able to solve the problem using python one liner
我们能够使用 python one liner 解决问题
JSON_RESPONSE=$(curl -u un:pw -X GET "http://nexus-host/nexus/service/rest/beta/search/assets?maven.groupId=sample.group.id&maven.artifactId=sample&maven.extension=jar" -H "accept: application/json")
echo $JSON_RESPONSE | python -c 'import sys, json; lines = json.load(sys.stdin)["items"]; sortedlines = sorted(lines, key=lambda k: k["downloadUrl"], reverse=True); print(sortedlines[0]["downloadUrl"])'
hope it helps
希望能帮助到你
回答by rbjorklin
I've put together a groovy script that can be uploaded to Nexus which solves this particular issue with a POST request.
我已经整理了一个可以上传到 Nexus 的 groovy 脚本，它通过 POST 请求解决了这个特定问题。
You can find the script and some usage instructions here: https://github.com/rbjorklin/resolve-latest-nexus-artifact
你可以在这里找到脚本和一些使用说明：https: //github.com/rbjorklin/resolve-latest-nexus-artifact
回答by Martin Hatas
You can download with curl
你可以用 curl 下载
curl -L --header 'Accept: application/json' "https://${NEXUS_URL}/service/rest/beta/search/assets/download?repository=${NEXUS_REPO_NAME}&maven.groupId=${MVN_GROUP_ID}&maven.artifactId=${MVN_ARTIFACT_ID}&maven.baseVersion=${APP_VERSION}&maven.extension=${MVN_EXTENSION}"
回答by barth
Bash one-liner using curl, jq, sortand tail:
Bash 单行使用curl, jq,sort和tail：
NEXUS_URL=https://your-nexus.com
MAVEN_REPO=maven-snapshots
GROUP_ID=...
ARTIFACT_ID=...
VERSION=2.0.1-SNAPSHOT
FILE_EXTENSION=jar
download_url=$(curl -X GET "${NEXUS_URL}/service/rest/v1/search/assets?repository=${MAVEN_REPO}&maven.groupId=${GROUP_ID}&maven.artifactId=${ARTIFACT_ID}&maven.baseVersion=${VERSION}&maven.extension=${FILE_EXTENSION}" -H "accept: application/json" | jq -rc '.items | .[].downloadUrl' | sort | tail -n 1)
wget $download_url
回答by seckin
Using OSS 3.21.2-03 I have retrieved latest snapshot with following url on a zip extension file :
使用 OSS 3.21.2-03 我在 zip 扩展文件中使用以下 URL 检索了最新快照：
{nexus_host}/service/rest/v1/search/assets/download?sort=version&repository={repository_name}&group={group_id}&name={artifact-id}&maven.extension=zip
回答by Jon Freedman
It's possible but not in a 1-liner. You need to fetch the maven-metadata.xml for each snapshot artifact you're after (note that multi-module projects have different timestamps for each module including the parent).
这是可能的，但不是 1-liner。您需要为您所追求的每个快照工件获取 maven-metadata.xml（请注意，多模块项目对于每个模块（包括父模块）具有不同的时间戳）。
We use xlstprocto extract the relevant variables so we are still able to run from the command line without heavyweight tools like maven or ivy to do the resolution.
我们使用xlstproc来提取相关变量，因此我们仍然可以从命令行运行，而无需像 maven 或 ivy 这样的重量级工具来进行解析。
