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reseau statique a...
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#!/bin/sh
git_cache() {
git -C "${GIT_CACHE_DIR}" $*
}
init() {
set -ex
local _git_dir="$(git_cache rev-parse --git-dir 2>/dev/null)"
test "$_git_dir" == "." -o "$_git_dir" == ".git" || {
mkdir -p "${GIT_CACHE_DIR}"
git_cache init --bare
git_cache config core.compression 1
}
set +ex
}
add() {
set -ex
if [ $# -eq 1 ]; then
local repo="$1"
local name="$(_remote_name $repo)"
else
local repo="$1"
local name="$2"
fi
if ! is_cached "$repo"; then
git_cache remote add "$name" "$repo"
else
echo "git-cache: $url already in cache"
fi
set +ex
}
update() {
set -ex
local REMOTE=${1:---all}
git_cache fetch $REMOTE
set +ex
}
is_cached() {
set +ex
local url="$1"
local REMOTES="$(git_cache remote show)"
for remote in $REMOTES; do
test "$(git_cache remote get-url $remote)" == "$url" && return 0
done
set -ex
return 1
}
list() {
local REMOTES="$(git_cache remote show)"
for remote in $REMOTES; do
echo "${remote}: $(git_cache remote get-url $remote)"
done
}
drop() {
set -ex
local REMOTE=${1}
[ -z "$REMOTE" ] && {
echo "usage: git cache drop <name>"
exit 1
}
git_cache remote remove $REMOTE
set +ex
}
_check_commit() {
git_cache cat-file -e ${1}^{commit}
}
_remote_name() {
basename "$*" .git
}
clone() {
set -ex
local REMOTE="${1}"
local SHA1="${2}"
local REMOTE_NAME="$(_remote_name $REMOTE)"
local TARGET_PATH="${3:-${REMOTE_NAME}}"
if [ "$GIT_CACHE_AUTOADD" == "1" ]; then
if ! is_cached "$REMOTE"; then
add "$REMOTE"
update "$(_remote_name $REMOTE)"
fi
fi
if _check_commit $2 2>&1; then
git init "${TARGET_PATH}"
git_cache tag commit$SHA1 $SHA1 || true # ignore possibly already existing tag
git -C "${TARGET_PATH}" fetch --tags --depth=1 "${GIT_CACHE_DIR}" refs/tags/commit$SHA1
git -C "${TARGET_PATH}" checkout FETCH_HEAD
else
git clone "${REMOTE}" "${TARGET_PATH}"
git -C "${TARGET_PATH}" checkout $SHA1
fi
set +ex
}
usage() {
echo "git cache uses a bare git repository containing all objects from multiple"
echo "upstream git repositories."
echo ""
echo "usage:"
echo ""
echo " git cache init initialize git cache"
echo " git cache add <url> [<name>] add repository <url> with name <name>"
echo " (if no name given, use \"basename $url .git\""
echo " git cache list list cached repositories"
echo " git cache drop <name> drop repo from cache"
echo " git cache update [<name>] fetch repo named <name> (or all)"
echo " git cache clone <url> <SHA1> clone repository <url> from cache"
echo " git cache show-path print's the path that can be used as "
echo " '--reference' parameter"
echo ""
echo "To retrieve objects from cache (will use remote repository if needed):"
echo ' git clone --reference $(git cache show-path) <repo>'
}
ACTION=$1
shift
export GIT_CACHE_DIR=${GIT_CACHE_DIR:-${HOME}/.gitcache}
case $ACTION in
init)
init $*
;;
add)
add $*
;;
update)
update $*
;;
list)
list $*
;;
drop)
drop $*
;;
show-path)
echo ${GIT_CACHE_DIR}
;;
clone)
clone $*
;;
*)
usage
;;
esac
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