Manifest processing (was RE: Krysalis-Version Resolving)

Ok, I gave it a test. Commons Logging has a manifest that looks like this:

	Manifest-Version: 1.0
	Created-By: Apache Ant 1.5.1
	Extension-Name: org.apache.commons.logging
	Specification-Vendor: Apache Software Foundation
	Specification-Version: 1.0
	Implementation-Vendor: Apache Software Foundation
	Implementation-Version: 1.0.3

which was being ignored because it had no Specification-Title attribute.

Manifest process was overly restrictive, I've loosened it up with some
fallback values:

	//
	// Fallbacks...
	//
	if (null == specificationTitle)
		specificationTitle = name;
	if (null == implementationTitle)
		implementationTitle = specificationTitle;
	if (null == specificationVendor)
		specificationVendor = "Unnamed Vendor";
	if (null == implementationVendor)
		implementationVendor = specificationVendor;
	if (null == implementationVersion)
		implementationVersion = specificationVersion;

I've checked this in to CVS.

We now get:

>java org.krysalis.version.tool.VersionTool -i org.apache.commons.logging
org.apache.commons.logging : 1.0.3

BTW: I've been having a bunch of problems w/ manifests recently, and I keep
working to make the code more tolerant/flexible. All problem
reports/feedback/suggestions welcomed.

regards,

Adam
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Adam
Jack
Sent: Monday, August 11, 2003 11:24 AM
To: [email protected]
Subject: RE: Krysalis-Version Resolving (was RE: First comments from a
newbee)



	>	    - "VersionTool" -c says that it don't find the version of
	>	org.apache.commons.logging with the jar file in classpath and version
	>	information in the manifest file.

	Ok, here is some background:

Opps the background:

Much as the environment's brute force searches have become a basis for the
registry (it pre-populates) -- I was hoping to have a more subtle approach
for resolving. In a more perfect world one would have a uniquely loadable
version for each resource, kinda like a class for a classloader. As such,
one ought be able to say "get me the version for X" and get it.

That said, what you are attempting ought work. Looking at the code we do
check the registry if the version isn't found as a stamp, or as a package.
Hmm, you know -- I did a lot of work on manifest's recently, it may have
been a bug in the pre-release you downloaded.

What does an environment dump (from VersionTool) show? Could you send it?

regards

Adam



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