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#!/bin/sh
set -e
SKEIN_CGIT_ROOT=${SKEIN_CGIT_ROOT:-/srv/cgit}
SKEIN_GIT_ROOT=${SKEIN_GIT_ROOT:-/srv/git}
usage() {
printf 'usage: skein-infra setup|teardown\n' >&2
exit 1
}
log() {
printf ' %s %s\n' "$1" "$2"
}
ladd() {
log + "$1"
}
ldel() {
log - "$1"
}
remove_prefix() {
printf "%s" "${1#$SKEIN_CGIT_ROOT/*}"
}
bind_mount() {
mkdir "$2"
mount --rbind "$1" "$2"
mount --make-rslave "$2"
ladd "$(remove_prefix "$2")"
}
bind_umount() {
umount "$i"
rmdir "$i"
ldel "$(remove_prefix "$i")"
}
setup() {
mkdir "$SKEIN_CGIT_ROOT"/dev
mknod "$SKEIN_CGIT_ROOT"/dev/null c 1 3
chmod 666 "$SKEIN_CGIT_ROOT"/dev/null
for i in "$SKEIN_CGIT_ROOT"/instances/*; do
test -d "$i" || continue
user=$(basename "$i")
id -ru "$user" >/dev/null || continue
git_repo_dir="${SKEIN_GIT_ROOT}/$user"
test -d "$git_repo_dir" || continue
instance_repo_dir="$SKEIN_CGIT_ROOT"/instances/$user/repos
bind_mount "$git_repo_dir" "$instance_repo_dir"
chmod 0701 "$instance_repo_dir"
done
}
teardown() {
rm "$SKEIN_CGIT_ROOT"/dev/null
rmdir "$SKEIN_CGIT_ROOT"/dev
for i in "$SKEIN_CGIT_ROOT"/instances/*/repos; do
bind_umount "$i"
done
}
test $# -eq 1 || usage
case $1 in
setup) setup;;
teardown) teardown;;
*) usage;;
esac
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