Hi to all,
at the moment I'm trying to understand a thing...(motivated by an issue
https://github.com/mojohaus/build-helper-maven-plugin/issues/33)
Lets say I have the following version: "20.4.00.0-SNAPSHOT"
The DefaultArtifactVersion class will parse this version with this result:
artifactVersion.getMajorVersion() = "0"
artifactVersion.getMinorVersion() = "0"
artifactVersion.getIncrementalVersion() = "0"
artifactVersion.getBuildNumber() = "0"
artifactVersion.getQualifier() = "20.4.00.0-SNAPSHOT"
And another version: "20.4.0-SNAPSHOT" and the DefaultArtifactVersion
class will parse this version with this result:
artifactVersion.getMajorVersion() = "20"
artifactVersion.getMinorVersion() = "4"
artifactVersion.getIncrementalVersion() = "0"
artifactVersion.getBuildNumber() = "0"
artifactVersion.getQualifier() = "SNAPSHOT"
but If I do a version comparison via:
java -jar /usr/local/apache-maven-3.3.9/lib/maven-artifact-3.3.9.jar
20.4.00.0-SNAPSHOT 20.4.0-SNAPSHOT
Display parameters as parsed by Maven (in canonical form) and comparison
result:
1. 20.4.00.0-SNAPSHOT == 20.4-snapshot
20.4.00.0-SNAPSHOT == 20.4.0-SNAPSHOT
2. 20.4.0-SNAPSHOT == 20.4-snapshot
So the question is why is the first one parsed differently by
DefaultArtifactVersion) than the second one...
Yes I know there is a difference (20.4.00.0...) but from a logical point
of view this does not make sense?
So it looks like that DefaultArtifactVersion follows hardly the pattern:
<majorversion [> . <minorversion [> . <incrementalversion ] ] [> -
<buildnumber | qualifier ]>
whereas the version comparison goes a different path...
Furthermore I have checked some other cases like this:
given Version: 1.2.3-01-SNAPSHOT
artifactVersion.getMajorVersion() = "1"
artifactVersion.getMinorVersion() = "2"
artifactVersion.getIncrementalVersion() = "3"
artifactVersion.getBuildNumber() = "0"
artifactVersion.getQualifier() = "01-SNAPSHOT"
given Version: 1.2.3-01
artifactVersion.getMajorVersion() = "1"
artifactVersion.getMinorVersion() = "2"
artifactVersion.getIncrementalVersion() = "3"
artifactVersion.getBuildNumber() = "0"
artifactVersion.getQualifier() = "01"
Version: 1.2.3-1
artifactVersion.getMajorVersion() = "1"
artifactVersion.getMinorVersion() = "2"
artifactVersion.getIncrementalVersion() = "3"
artifactVersion.getBuildNumber() = "1"
artifactVersion.getQualifier() = null
So this means a buildnumber is not allowed to be prefixed with a digit "0" ?
I think the last two examples look strange to me...I would have expected
that a qualifier is something which starts with a character and not with
a digit...
WDYT ?
Kind regards
Karl Heinz
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