On Sep 4, 2008, at 22:09, Stephen Connolly wrote:
On Thu, Sep 4, 2008 at 8:52 PM, Benjamin Smith-Mannschott:
Yes. That helped, as did
http://docs.codehaus.org/display/MAVEN/Extending+Maven+2.0+Dependencies
Which actually comes out and says that qualifier and build nr are
mutually
exclusive. The syntax given says this too, but I wasn't seeing it.
Another
way of looking at it, I suppose, is that everything following
"1.2.3-" is
taken as single qualifier, which is compared numerically if it
happens to be
composed only of digits and otherwise compared as a string.
Yep:
http://maven.apache.org/ref/current/maven-artifact/xref/org/apache/maven/artifact/versioning/DefaultArtifactVersion.html#155
Aha! thanks! I was grubbing around in the source of the 2.0.x branch
yesterday after I wrote my message looking for exactly this class,
only I didn't find it. ;-)
It seems that '.2.3', in the example above is optional, those parts
taken
to be zero if missing. If any alphanumerics get mixed up in there
or about
without a separating hyphen the whole thing goes textual and is just
compared as a single string. At least that's what I understood. So
presumably, if we're comparing two version strings with eachother
and one is
"well formed" and the other is not, they just get compared as if
they were
both not well formed.
Nope:
http://maven.apache.org/ref/current/maven-artifact/xref/org/apache/maven/artifact/versioning/DefaultArtifactVersion.html#54
If one is treated as a string (because it's malformed) the other
will always
be newer (because it has a build number)
Actually, it looks like the build number only enters into it when both
have a build number, but build number and qualifier are mutually
exclusive, so the logic exits early if one has a qualifier and the
other doesn't.
Somehow that logic makes me a little queezy, but at least it does
appear to sort consistently.
// Ben
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