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#!/bin/sh
set -e
usage() {
printf "usage: git init-shared directory [user...]\n" >&2
exit 1
}
acl_mask() {
# Set the ACL mask for the directory. The default mask will be inherited by
# new directories and files (where it will correctly be set to rw-)
setfacl -m "d:m:rwx" "$1"
setfacl -m "m:rwx" "$1"
}
add_to_acl() {
# Recursively apply all necessary ACL settings as we may be reinitializing
# the git repository with additional authorised users.
# Take care *not* to recalculate the ACL mask (-n), since rwX translates to
# a mask of rwx even on non-directory files.
setfacl -Rnm "d:u:$2:rwX" "$1"
setfacl -Rnm "u:$2:rwX" "$1"
}
test $# -ge 1 || usage
dir=$1
shift
mkdir -p "$dir"
acl_mask "$dir"
for user in "$(id -un)" "$@"; do
add_to_acl "$dir" "$user"
done
exec git init --bare "$dir"
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