rename to myautomount

   Add annotations to conf file, separate out initialization
   so daemon can be per-user. Use a sane name.

1 files changed, 137 insertions, 0 deletions

diff --git a/src/usr/bin/myautomountd b/src/usr/bin/myautomountd
new file mode 100755
index 0000000..d23940a
--- /dev/null
+++ b/src/usr/bin/myautomountd
@@ -0,0 +1,137 @@
+#!/bin/sh
+# File: /usr/bin/myautomountd
+# Location: gitlab
+# Authors: beanpole135, bgstack15
+# Startdate: 2020-09-23
+# Title: Automount in Shell
+# Purpose: almost one-for-one translation of Go version 
+# History:
+#    2020-09-23 translated by bgstack15 to shell from Go version (reference 1)
+#        Several translation notes: configuration split out into separate file
+#           and given a Fedora flavor.
+# 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
+# Reference:
+#    https://github.com/project-trident/trident-utilities/blob/master/src-go/automount/main.go
+# Improve:
+# Dependencies:
+#    udevadm (from systemd-udev or eudev)
+#    dep-devuan: eudev
+
+# FUNCTIONS
+clean_automount() {
+   rm -f "${AUTOMOUNT_TMPFILE}"
+   kill "${AUTOMOUNT_PID}"
+}
+
+reset_tmpfile() {
+   cat /dev/null > "${AUTOMOUNT_TMPFILE}"
+}
+
+handleEvent() {
+   # call: handleEvent "${STRING}"
+   _line="${1}"
+   test -n "${STACKTRACE}" && echo "handleEvent \"${_line}\"" 1>&2
+   echo "${_line}" | grep -qvE "^UDEV" && return # not a valid entry - possibly a startup message
+   test $( echo "${_line}" | wc -w ) -ne 5 && return
+   _deviceid=
+   _eventType=
+   for word in ${_line} ; do
+      # no opportunity for the bash for statement to read a blank value here from unquoted variable
+      if echo "${word}" | grep -qE '^(add|remove|change)$' ;
+      then
+         _eventType="${word}"
+      elif echo "${word}" | grep -qE "^\/devices\/" ;
+      then
+         _deviceid="$( echo "${word}" | awk -F'/' '{print $NF}' )"
+      fi
+   done
+   { test "${_deviceid}" = "" || test "${_eventType}" = "" ; } && return
+   test -n "${VERBOSE}" || test -n "${DEBUG}" && echo "Got device event: ${_eventType} ${_deviceid}" 1>&2
+   _entry="${AUTOMOUNT_BASEDIR}/${_deviceid}.desktop"
+   case "${_eventType}" in
+      "add")
+         createEntry "${_deviceid}" "${_entry}"
+         ;;
+      *) # anything else
+         test -e "${_entry}" && { rm "${_entry}" || : ; }
+         test "${_eventType}" = "change" && createEntry "${_deviceid}" "${_entry}"
+         ;;
+   esac
+}
+
+createEntry() {
+   # call: createEntry "{device}" "${filepath}"
+   _device="${1}"
+   _filepath="${2}"
+   test -n "${STACKTRACE}" && echo "STUB createEntry \"${_device}\" \"${_filepath}\"" 1>&2
+   _fs=
+   _model=
+   _vendor=
+   _label=
+   _atracks=
+   _bytes="$( udevadm info "/dev/${_device}" 2>/dev/null )"
+   _shortbytes="$( printf "%s\n" "${_bytes}" | sed -r -e 's/^E:\s*//;' | grep -E '^(ID_FS_TYPE|ID_MODEL|ID_VENDOR|ID_FS_LABEL|ID_CDROM_MEDIA_TRACK_COUNT_AUDIO)=' )"
+   unset ID_FS_TYPE ID_MODEL ID_VENDOR ID_FS_LABEL ID_CDROM_MEDIA_TRACK_COUNT_AUDIO
+   eval "${_shortbytes}"
+   _fs="${ID_FS_TYPE}"
+   _model="${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 "${_atracks}" = "" && return # if the fs cannot be detected 
+   touch "${_filepath}" ; chmod 0755 "${_filepath}"
+   {
+      echo "[Desktop Entry]"
+      echo "Version=1.1"
+      if test "${_fs}" = "udf" ; then
+         echo "Type=Application"
+         echo "Exec=xdg-open dvd:///dev/${_device}"
+      elif test -n "${_atracks}" ; then
+         test -n "${_label}" && _label="Audio CD"
+         echo "Type=Application"
+         echo "Exec=xdg-open cdda:///dev/${_device}"
+      else
+         echo "Type=Application"
+         echo "Exec=xdg-open ${AUTOMOUNT_BROWSEDIR}/${_device}"
+         echo "Path=${AUTOMOUNT_BROWSEDIR}/${_device}"
+      fi
+      if test -z "${_label}" ; then
+         echo "Name=${_vendor} ${_model}"
+      else
+         echo "Name=${_label}"
+         echo "GenericName=${_vendor} ${_model}"
+      fi
+      echo "Comment=${_device} (${_fs})"
+      case "${_fs}" in
+         "cd9600") echo "Icon=media-optical" ;;
+         "udf") echo "Icon=media-optical-dvd" ;;
+         "") echo "Icon=media-optical-audio" ;;
+         *) echo "Icon=media-removable" ;;
+      esac
+   } > "${_filepath}"
+}
+
+# INITIALIZE
+. ${MYA_PREFIX}/etc/myautomount.conf
+trap '__ec=$? ; clean_automount ; trap "" 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 ; exit ${__ec} ;' 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20
+mkdir -p "${AUTOMOUNT_BASEDIR}"
+
+# MAIN
+# start udevadm
+udevadm monitor -u -s block 1> "${AUTOMOUNT_TMPFILE}" &
+export AUTOMOUNT_PID="${!}"
+test -n "${DEBUG}" && env | grep -E '^AUTOMOUNT_' 1>&2
+while ! test -e /tmp/kill-automount ;
+do
+   tail -F "${AUTOMOUNT_TMPFILE}" 2>/dev/null | while read line ;
+   do
+      handleEvent "${line}"
+      _length="$( wc -l < "${AUTOMOUNT_TMPFILE}" 2>/dev/null )" ; test -z "${_length}" && _length=0
+      test "${line}" = "$( tail -n1 "${AUTOMOUNT_TMPFILE}" )" && test ${_length} -gt 200 && reset_tmpfile
+   done
+   # the tail finished for some reason, so clear the file
+   reset_tmpfile
+done