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_bc_user=bitcoin
_bc_group=bitcoin
post_install() {
_mkuser
_dir="/var/lib/bitcoind"
_cnf="/etc/bitcoin"
if test -d "$_dir"; then
# disable Copy-On-Write (btrfs directories only)
# This avoids lots of known db-corruption issues
_is_btrfs "$_dir" && chattr +C "$_dir"
else
mkdir -m 750 "$_dir"
fi
chown -R $_bc_user:$_bc_group "$_dir" "$_cnf"
chmod 775 "$_cnf"
printf "%b\n" "$bitcoin"
}
post_upgrade() {
_mkuser
printf "%b\n" "$bitcoin"
}
# ------------------------------------------------------------------------------
# helper functions for creating bitcoin user / group
# ------------------------------------------------------------------------------
_mkuser() {
getent passwd $_bc_user &>/dev/null || {
echo -n "Creating bitcoin user... "
grep -E "^$_bc_group:" /etc/group >/dev/null || groupadd $_bc_group
useradd -m -d /etc/bitcoin -g $_bc_group -s /usr/bin/nologin $_bc_user 2>/dev/null
echo "done"
}
}
# ------------------------------------------------------------------------------
# helper functions for disabling btrfs Copy-On-Write (CoW)
# https://wiki.archlinux.org/index.php/Btrfs#Copy-On-Write_.28CoW.29
# ------------------------------------------------------------------------------
# check if dir is btrfs
_is_btrfs() {
if [[ $(findmnt --target $1 --output FSTYPE --noheadings) == 'btrfs' ]]; then
return 0
else
return 1
fi
}
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