git/git-remote-testgit

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#!/usr/bin/env bash
# Copyright (c) 2012 Felipe Contreras
alias=$1
url=$2
dir="$GIT_DIR/testgit/$alias"
prefix="refs/testgit/$alias"
default_refspec="refs/heads/*:${prefix}/heads/*"
refspec="${GIT_REMOTE_TESTGIT_REFSPEC-$default_refspec}"
test -z "$refspec" && prefix="refs"
export GIT_DIR="$url/.git"
mkdir -p "$dir"
if test -z "$GIT_REMOTE_TESTGIT_NO_MARKS"
then
gitmarks="$dir/git.marks"
testgitmarks="$dir/testgit.marks"
test -e "$gitmarks" || >"$gitmarks"
test -e "$testgitmarks" || >"$testgitmarks"
testgitmarks_args=( "--"{import,export}"-marks=$testgitmarks" )
fi
while read line
do
case $line in
capabilities)
echo 'import'
echo 'export'
test -n "$refspec" && echo "refspec $refspec"
if test -n "$gitmarks"
then
echo "*import-marks $gitmarks"
echo "*export-marks $gitmarks"
fi
echo
;;
list)
git for-each-ref --format='? %(refname)' 'refs/heads/'
head=$(git symbolic-ref HEAD)
echo "@$head HEAD"
echo
;;
import*)
# read all import lines
while true
do
ref="${line#* }"
refs="$refs $ref"
read line
test "${line%% *}" != "import" && break
done
if test -n "$gitmarks"
then
echo "feature import-marks=$gitmarks"
echo "feature export-marks=$gitmarks"
fi
echo "feature done"
git fast-export "${testgitmarks_args[@]}" $refs |
sed -e "s#refs/heads/#${prefix}/heads/#g"
echo "done"
;;
export)
before=$(git for-each-ref --format='%(refname) %(objectname)')
git fast-import "${testgitmarks_args[@]}" --quiet
after=$(git for-each-ref --format='%(refname) %(objectname)')
# figure out which refs were updated
join -e 0 -o '0 1.2 2.2' -a 2 <(echo "$before") <(echo "$after") |
while read ref a b
do
test $a == $b && continue
echo "ok $ref"
done
echo
;;
'')
exit
;;
esac
done