From 1c1f6e8aca57284e0e03091ad8f4aa673778ef52 Mon Sep 17 00:00:00 2001
From: "B. Stack" <bgstack15@gmail.com>
Date: Thu, 5 Oct 2023 14:51:35 -0400
Subject: WIP: lvm but autofs cannot do that

---
 src/usr/bin/myautomountd | 80 +++++++++++++++++++++++++++++++++---------------
 1 file changed, 56 insertions(+), 24 deletions(-)

diff --git a/src/usr/bin/myautomountd b/src/usr/bin/myautomountd
index e6a1466..1d9370d 100755
--- a/src/usr/bin/myautomountd
+++ b/src/usr/bin/myautomountd
@@ -10,6 +10,7 @@
 #    2020-09-23 originally translated by bgstack15 to shell from Go version (reference 1)
 #    2020-09-25 diverged from original architecture
 #    2023-10-04 add fs_type to path to make autofs work with exact fs type
+#    2023-10-05 ATTEMPTED TO ADD lvm autofs support, but STOPPED because autofs does not support lvm.
 # Usage:
 #    Invoke this at X startup. This can be from the xdg autostart mechanism, or "exec myautomountd &" in ~/fluxbox.startup
 #    This is the backend to myautomount-trayicon
@@ -62,30 +63,8 @@ handleEvent() {
    esac
 }
 
-createEntry() {
-   # call: createEntry "{device}" "${filepath}"
-   _device="${1}"
-   _filepath="${2}"
-   test -n "${STACKTRACE}" && echo "STUB createEntry \"${_device}\" \"${_filepath}\"" 1>&2
-   unset _fs _model _vendor _label _atracks _fs_version _use_fs
-   # _use_fs simplifies the mount types a little
-   _bytes="$( udevadm info "/dev/${_device}" 2>/dev/null )"
-   _shortbytes="$( printf "%s\n" "${_bytes}" | sed -r -e 's/^E:\s*//;' | grep -E '^(ID_FS_TYPE|ID_MODEL|ID_VENDOR|ID_FS_LABEL|ID_CDROM_MEDIA_TRACK_COUNT_AUDIO|ID_FS_VERSION)=' )"
-   unset ID_FS_TYPE ID_MODEL ID_VENDOR ID_FS_LABEL ID_CDROM_MEDIA_TRACK_COUNT_AUDIO ID_FS_VERSION
-   eval "${_shortbytes}"
-   _fs="${ID_FS_TYPE}"
-   _fs_version="${ID_FS_VERSION}"
-   _model="${ID_MODEL}"
-   _vendor="${ID_VENDOR}"
-   _label="${ID_FS_LABEL}"
-   _atracks="${ID_CDROM_MEDIA_TRACK_COUNT_AUDIO}"
-   test -n "${DEBUG}" && echo "fs=${_fs} model=${_model} vendor=${_vendor} label=${_label} atracks=${_atracks}" 1>&2
-   test "${_fs}" = "" && test "${_atracks}" = "" && return # if the fs cannot be detected 
-   test "${_fs}" = "vfat" && test "${_fs_version}" = "FAT32" && _use_fs="fat32"
-   case "${_fs}" in
-      ntfs|ext4) _use_fs="${_fs}" ;;
-   esac
-   _use_fs="$( echo "/${_use_fs%%/}/" | sed -r -e "s@\/\/@\/@g;" )"
+createEntryFile() {
+   # set these beforehand: _filepath, _device, AUTOMOUNT_BROWSEDIR, _use_fs, _label, _vendor, _model, _fs
    touch "${_filepath}" ; chmod 0755 "${_filepath}"
    {
       echo "[Desktop Entry]"
@@ -118,6 +97,59 @@ createEntry() {
    } > "${_filepath}"
 }
 
+createEntry() {
+   # call: createEntry "{device}" "${filepath}"
+   _device="${1}"
+   _filepath="${2}"
+   test -n "${STACKTRACE}" && echo "STUB createEntry \"${_device}\" \"${_filepath}\"" 1>&2
+   unset _fs _model _vendor _label _atracks _fs_version _use_fs _vg _lvs
+   _use_lvs=0
+   # _use_fs simplifies the mount types a little
+   _bytes="$( udevadm info "/dev/${_device}" 2>/dev/null )"
+   _shortbytes="$( printf "%s\n" "${_bytes}" | sed -r -e 's/^E:\s*//;' | grep -E '^(ID_FS_TYPE|ID_MODEL|ID_VENDOR|ID_FS_LABEL|ID_CDROM_MEDIA_TRACK_COUNT_AUDIO|ID_FS_VERSION)=' )"
+   unset ID_FS_TYPE ID_MODEL ID_VENDOR ID_FS_LABEL ID_CDROM_MEDIA_TRACK_COUNT_AUDIO ID_FS_VERSION
+   eval "${_shortbytes}"
+   _fs="${ID_FS_TYPE}"
+   _fs_version="${ID_FS_VERSION}"
+   _model="${ID_MODEL}"
+   _vendor="${ID_VENDOR}"
+   _label="${ID_FS_LABEL}"
+   _atracks="${ID_CDROM_MEDIA_TRACK_COUNT_AUDIO}"
+   test -n "${DEBUG}" && echo "fs=${_fs} model=${_model} vendor=${_vendor} label=${_label} atracks=${_atracks}" 1>&2
+   # if lvm, then get all the way down to the logical volume mount point type
+   test "${_fs}" = "LVM2_member" && {
+      _use_lvs=1
+      _vg="$( sudo pvs "/dev/${_device}" --noheadings -o-pv_name,pv_fmt,pv_attr,pv_size,pv_free,vg_name -o+vg_name | xargs )"
+      _lvs="$( sudo lvs "${_vg}"  --noheadings -o-vg_name,lv_attr,lv_size,pool_lv,origin,data_percent,metadata_percent,copy_percent,move_pv,mirror_log,convert_lv,lv_name -o+lv_name | xargs )"
+   }
+   test "${_fs}" = "" && test "${_atracks}" = "" && return # if the fs cannot be detected 
+   test "${_fs}" = "vfat" && test "${_fs_version}" = "FAT32" && _use_fs="fat32"
+   case "${_fs}" in
+      ntfs|ext4) _use_fs="${_fs}" ;;
+   esac
+   _use_fs="$( echo "/${_use_fs%%/}/" | sed -r -e "s@\/\/@\/@g;" )"
+   if test "${_use_lvs}" = "1" ;
+   then
+      for _thislv in ${_lvs} ;
+      do
+         # get fs type:
+         _device="${_vg}/${_thislv}"
+         _lv_info="$( sudo wipefs "/dev/${_device}" --noheadings --parsable --output TYPE,LABEL )"
+         _fs="$( echo "${_lv_info}" | awk -F',' '{print $1}' )"
+         _label="$( echo "${_lv_info}" | awk -F',' '{print $2}' )"
+         test "${_fs}" = "vfat" && test "${_fs_version}" = "FAT32" && _use_fs="fat32"
+         case "${_fs}" in
+            ntfs|ext4) _use_fs="${_fs}" ;;
+         esac
+         _use_fs="$( echo "/${_use_fs%%/}/" | sed -r -e "s@\/\/@\/@g;" )"
+         createEntryFile
+      done
+   else
+      # not lvm, so regular
+      createEntryFile
+   fi
+}
+
 # INITIALIZE
 test -z "${UID}" && export UID="$( $( which id ) -u "${USER}" )"
 . ${MYA_PREFIX}/etc/myautomount.conf
-- 
cgit