I am trying to verify the checksum of the artifacts I am downloading from Nexus. I can grab the artifact and download them and check their md5sum or sha1sum, but I need to check this against the actual sum from Nexus so I can verify they are correct.
This is the command I'm using to grab files from Nexus:
curl -v -L -o /mylocation/artifact.war -u 'myuser:mypass' --get 'http://ournexus.com/service/local/artifact/maven/content?g=com.ours.stuff&a=our-service-war&v=LATEST&r=snapshots&p=war'
Via http://nexus.xwiki.org/nexus/nexus-indexer-lucene-plugin/default/docs/path__lucene_search.html, it would appear that I can also search for the sha1 sum, but when I do &sha1 I get nothing extra or sha1=(sum), nothing is pulled up, even if I omit all the above options.
This works, but it goes to a specific war, and we need the latest (obviously):
http://ournexus.com/service/local/repositories/snapshots/content/com/ours/stuff/ourapp/1.0.0-SNAPSHOT/ourapp-1.0.0-20140730.173704-88.war.sha1
Is this possible, am I on the right track?
You can either fetch the file directly or use the Nexus API to retrieve it programmatically.
The following URL:
http://localhost:8081/nexus/service/local/artifact/maven/resolve?g=log4j&a=log4j&v=1.2.9&r=central
Returns the following result:
<artifact-resolution>
<data>
<presentLocally>true</presentLocally>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.9</version>
<extension>jar</extension>
<snapshot>false</snapshot>
<snapshotBuildNumber>0</snapshotBuildNumber>
<snapshotTimeStamp>0</snapshotTimeStamp>
<sha1>55856d711ab8b88f8c7b04fd85ff1643ffbfde7c</sha1>
<repositoryPath>/log4j/log4j/1.2.9/log4j-1.2.9.jar</repositoryPath>
</data>
</artifact-resolution>
The xmllint command can be used to parse out the sha1 checksum value as follows:
$ curl -s "http://localhost:8081/nexus/service/local/artifact/maven/resolve?g=log4j&a=log4j&v=1.2.9&r=central" | xmllint --xpath "///sha1/text()" -
55856d711ab8b88f8c7b04fd85ff1643ffbfde7c
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