git/V

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#!/bin/sh
for v in maint master next pu jch
do
installed=$($HOME/git-$v/bin/git version)
if version=$(expr "$installed" : '.*\.g\([0-9a-f]*\)$')
then
:
elif version=v$(expr "$installed" : \
'git version \(.*\)\.rc[0-9]*$')
then
version="$version"-$(expr "$installed" : \
'git version .*\.\(rc[0-9]*\)$')
else
version=v$(expr "$installed" : 'git version \(.*\)')
fi
version=$(git rev-parse --verify "$version^0" 2>/dev/null)
revision=$(git show-ref -s --verify "refs/heads/$v")
if test "z$version" = "z$revision"
then
in= out= installed=
else
installed=$(git describe $version)
in="" out="" installed=" $installed"
fi
echo "$in$v$out $(git describe refs/heads/$v)$installed"
done