[OpenWrt-Devel] SVN to GIT transition

[Javier Domingo Cansino]

>
> Would it be possible to track the revision number in an automated way even
> in a git repo?  So store the r number, and automatically increment on
> commits.  Not sure if that's an option, but it seems like it might address
> the problem.
>

In git you wouldn't need such thing, the way would be to track the forking
point comparing the user history with the upstream master history, and
describing the path. The oneliner I sent before (which I now realize I
split in two), did (or will do) the following.

1) Go back in history and find the latest tag, save it as $tag
2) Find the forking point between upstream and user branch if any, save
current commit if not such fork exists as $parent.
3) count how many commits are from $tag commit to $parent commit, save it
as $parent_n
3) If fork exists, count how many commits from $parent to HEAD, save it as
$commit_n
4) If tree is dirty, save $dirty='-dirty', else $dirty=''

compose the build version info as the following:

$tag-$parent_n-$parent-$commit_n-$parent$dirty
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