1 files changed, 49 insertions, 0 deletions
diff --git a/flowee.install b/flowee.install
new file mode 100644
index 000000000000..694e989c2540
--- /dev/null
+++ b/flowee.install
@@ -0,0 +1,49 @@
+_bc_user=flowee
+_bc_group=flowee
+
+post_install() {
+  _mkuser
+  _dir="/var/lib/flowee"
+  _log="/var/log/flowee"
+  _cnf="/etc/flowee"
+  if test ! -d "$_dir"; then
+    mkdir -m 750 "$_dir"
+    # disable Copy-On-Write (btrfs directories only)
+    # This avoids lots of known db-corruption issues
+    _is_btrfs "$_dir" && chattr +C "$_dir"
+  fi
+  mkdir -p -m 770 "$_log"
+  chown -R $_bc_user:$_bc_group "$_dir" "$_cnf" "$_log"
+}
+
+post_upgrade() {
+  _mkuser
+}
+
+
+# ------------------------------------------------------------------------------
+# helper functions for creating flowee user / group
+# ------------------------------------------------------------------------------
+
+_mkuser() {
+  getent passwd $_bc_user &>/dev/null || {
+    echo -n "Creating flowee user... "
+    grep -E "^$_bc_group:" /etc/group >/dev/null || groupadd $_bc_group
+    useradd -m -d /etc/flowee -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
+}