Automagical Version Numbers

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Would be cool if vclog could generate an automagical version number based on types of changes.

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Yea, we now got that too. w00t w00t!

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Here is a note about this just for reference:

We started off by looking at what git can tell us about the current release:

• git-rev-parse tells up what the ID of the is, we can find out the current commit's ID by using HEAD (or nothing at all)
• git-rev-list ..HEAD tells us what the commits were between the and the current commit
• git-describe shows us, in a nice format, a unique description of the commit.

Using all of this together Patrick came up with:

BRANCH=`git-describe | awk -F'-g[0-9a-fA-F]+' '{print $1}'`
COMMIT=`git-rev-parse HEAD | awk '{print substr($1,0,8)}'`
INCREMENT=`git-rev-list $BRANCH..HEAD | wc -l | awk '{print $1}'` 
TGZ="openswan-$BRANCH-($INCREMENT)-g$COMMIT.tgz"

What this attempts to achieve is create a tar ball name that describes the release using the last tag, the number of builds since the tag was made, and the short commit ID. Here is the breakdown of the bits:

• BRANCH will tell us what major release this is a part of,
• INCREMENT is a pseudo build number (it's really the number of commits since the last release), and
• gCOMMIT is the short ID of the commit that generated the build.