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#!/bin/bash
###################################################################################################
# .drive-trash-unsynced-remote
###################################################################################################
# Copyright 2017-2023 Jean-Christophe Manciot <jcmanciot@sdxlive.com>
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
# in compliance with the License. You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# This script is using a project hosted at https://github.com/odeke-em/drive, originally developed
# by Burcu Dogan while working on the Google Drive team and now maintained by Emmanuel T Odeke.
#
# Attribution — You must give appropriate credit, provide a link to the license, and indicate if
# changes were made. You may do so in any reasonable manner, but not in any way that
# suggests the licensor endorses you or your use.
###################################################################################################
###################################################################################################
#
# Trashing recursively all the files/folders (objects) listed in .driveselect under the section
# [trash] from the current directory's remote equivalent on your Google Drive online.
# The scale of the operation does NOT depend on the depth setting in your
# <google_drive_folder>/.driverc:
# - files are trashed as expected
# - folders are trashed with all their recursive contents, regardless of depth setting.
# The list of objects affected by this operation can be optionnaly filtered by
# <google_drive_folder>/.driveignore.
# The trashed objects can be recovered from the Trash online.
#
###################################################################################################
#
# Requirements:
# ------------
#
# - We assume that:
# + drive-google package is already installed.
# + coreutils, perl-base, sed & zenity packages are already installed.
#
# - **This is an internal script called by drive-sync when necessary.**
#
# - <google_drive_folder>/.driverc:it must be properly setup, either manually or with drive-setup,
# with the following settings:
# * ...: cf. https://github.com/odeke-em/drive for a complete list of available
# options. They can only be set manually through .driverc or through drive-setup for
# the sake of simplicity.
# Cf. /etc/drive-google/.driverc for some examples.
#
# - <google_drive_folder>/.driveignore: it may be used to exclude/include some objects from the
# scope of the current drive-<command> by using regular
# expressions.
# Cf. /etc/drive-google/.driveignore for its format & some
# examples.
#
# - ./.driveselect: it may be used to include/exclude the objects from the scope of the current
# drive-<command>.
# Cf. /etc/drive-google/.driveselect for its format & some examples.
#
###################################################################################################
#
# Parameters:
# ----------
#
# - <message> is used in the interactive GUI windows
#
# - -<anything> will display this help message
#
###################################################################################################
if [[ $LOG_DRIVE_TRASH_UNSYNCED_REMOTE == ON ]]; then
# Getting the last existing file descriptor of ~/.drive-google/logs/drive-google.log
fd=$(ls -al /proc/$$/fd | grep ~/.drive-google/logs/drive-google.log | sed -E 's|^.* ([0-9]+) -> .*$|\1|g' | sort -V | tail -n 1)
# Case where fd is unset, i.e the file ~/.drive-google/logs/drive-google.log has not yet been opened
if [[ -z $fd ]]; then
lowest_unused_fd ()
{
local fd=0
while [ -e /proc/$$/fd/${fd} ]; do
fd=$((fd+1))
done
echo $fd
}
fd=$(lowest_unused_fd)
# Opening ~/.drive-google/logs/drive-google.log as file descriptor $fd for appending
eval "exec $fd>> ~/.drive-google/logs/drive-google.log"
fi
# Writing the trace output generated when set -x is enabled to file descriptor $fd
eval "BASH_XTRACEFD=$fd"
# Logging line numbers - We could also use ${0} for ${BASH_SOURCE}
BASH_SOURCE_BASENAME=$(basename ${BASH_SOURCE})
export PS4='${BASH_SOURCE_BASENAME}.${LINENO}+ '
# Expanding all variables and prints the full commands before output of the command
set -x
fi
# Preventing globbing (pathname expansion)
set -o noglob
# Allowing extended globbing
shopt -s extglob
# Expanding aliases
shopt -s expand_aliases
# Including alias definitions to sed/grep/awk/perl commands for readability sake
. /usr/include/drive-google/aliases
#------------------------------------trash-objects------------------------------------------------
# Trashing all objects listed in "${filtered_objects[@]}"
# Usage: trash-objects | zenity --progress --percentage=0 --auto-close
# Return strings which feed 'zenity --progress'
# - "# Trashing $object"
# - "$current_percentage"
# The function uses the global array variables:
# - "${filtered_objects[@]}"
function trash-objects ()
{
# Initializing:
# - current trashed objects number so far,
# - current percentage of checked objects so far,
current_objects_number=0
current_percentage=0
for object in "${filtered_objects[@]}"
do
# Getting the object type from its leading character
object_type=$(echo "$object" | extract_object_type)
# Removing leading object stats
object=$(echo "$object" | rm_object_stats)
# Feeding 'zenity --progress'
LC_ALL=C printf '%s\n' "# Trashing $object"
if [[ $object_type == '-' ]]; then
# This is a file
# Getting its parent folder
folder="$(dirname "$object")"
object_type='file'
elif [[ $object_type == 'd' ]]; then
# This is a folder
folder="$object"
object_type='folder'
else
# This is an unknown object type ?
output="??????:\t\t${object}"
# Saving $output in temporary .driveoutput.log file after having escaped all "escape sequences"
printf '%b\n' "$output" | escape_escape_sequences >> .driveoutput.log
# Moving on to the next object
continue
fi
# Checking whether the object has a parent other than the root <google_drive_folder>
if [[ "$folder" != '.' ]]; then
# Checking whether current object is a descendant of the last parent folder
if [[ ("$folder" =~ ^"${last_folder}"/) && ($last_object_type == folder) ]]; then
# It's unnecessary to apply the operation on this object,
# since it has already been done on its parent folder,
# assuming ${filtered_objects[@]} list is correctly sorted
# Moving on to the next object
continue
elif [[ "$folder" != "$last_folder" ]]; then
# It's a new parent folder or a file not descendant of previous object
last_folder="$folder"
last_object_type=$object_type
fi
fi
# Removing all occurrences of '&' in $object as a workaround to a markup ampersand issue with zenity
noamp_object=$(echo "${object}" | rm_ampersand)
# While there is a connection error and the user wants to continue trying
while :
do
# Trashing the $object
unset output
output=$(echo 'Y' | drive trash "$object" 2>&1)
# Checking $output
if [[ "${output[@]}" =~ 'Get https://www.googleapis.com/drive/' ]]; then
# Connection error
# Displaying the error
zenity --error --title "Connection error accessing your Google Drive online in ${noamp_local_folder}" --text="${noamp_object}\n\nCould not connect to https://www.googleapis.com/drive/v2/files or/nor to https://accounts.google.com/o/oauth2/token" --width 1400
zenity --question --title "Connection error accessing your Google Drive online in ${noamp_local_folder}" --text="${noamp_object}\n\nDo you want to abort current drive operation?" --width 1400
if [[ $? -eq 1 ]]; then
# Continuing trying
continue
elif [[ $? -eq 0 ]]; then
# Aborting
exit 9
fi
elif [[ "${output[@]}" =~ "doesn't exist" ]]; then
output="Absent:\t\t${object}"
elif [[ -z "${output[@]}" ]]; then
output="Trashed:\t${object}"
else
output="??????:\t\t${object}"
fi
if [[ ("$output" =~ 'Trashed') || ("$output" =~ 'Absent') ]]; then
(( current_objects_number++ ))
# Computing the current percentage of pulled objects
current_percentage=$(echo "scale=4; (${current_objects_number}/${#filtered_objects[@]})*100" | bc)
# Feeding 'zenity --progress'
LC_ALL=C printf '%.2f\n' "$current_percentage"
fi
# We're done
break
done
# Saving $output in temporary .driveoutput.log file after having escaped all "escape sequences"
printf '%b\n' "$output" | escape_escape_sequences >> .driveoutput.log
done
}
#------------------------------------.drive-trash-unsynced-remote----------------------------------
message=$1
if [[ ! "$message" =~ ^- ]]; then
local_folder="$(pwd)"
# Removing all occurrences of '&' in $object as a workaround to a markup ampersand issue with zenity
noamp_local_folder="$(echo "${local_folder}" | rm_ampersand)"
# Finding local root Google Drive folder
gd_root_folder="$(.drive-find-gd)"
return_code=$?
# Removing all occurrences of '&' in $gd_root_folder as a workaround to a markup ampersand issue with zenity
noamp_gd_root_folder="$(echo "${gd_root_folder}" | rm_ampersand)"
case $return_code in
0)
# Everything is fine - we continue
;;
7)
zenity --warning --title "Drive context found in $noamp_gd_root_folder" --text="We have moved to $noamp_gd_root_folder\n\nIf you prefer to select another Google Drive folder:\n\t--> 'Change local folder' in drive-menu" --width 1400
cd "$gd_root_folder"
local_folder="$(pwd)"
# Removing all occurrences of '&' in $object as a workaround to a markup ampersand issue with zenity
noamp_local_folder="$(echo "${local_folder}" | rm_ampersand)"
;;
8)
zenity --error --title "No drive context found below and above $noamp_local_folder" --text="- either drive has not been initialized properly (at least one hop away from '/') with:\n\t--> '# drive init google_drive_folder' within a terminal\n- or we are not located below your google_drive_folder top level branch:\n\t--> 'Change local folder' in drive-menu" --width 1400
exit $return_code
;;
*)
# Something is fatally wrong
zenity --error --title "Fatal error in drive-menu" --text="\tUnknown return code from .drive-find-gd: $return_code\n\nPlease report that issue to: https://gitlab.com/jean-christophe-manciot/Drive/issues" --width 1200
exit 99
;;
esac
# Filtering & sorting the objects list
filtered_objects=()
readarray -t filtered_objects < <(.drive-select-objects 'select_file' 'trash')
if [[ ${#filtered_objects[@]} -eq 0 ]]; then
zenity --warning --title "Trashing 0 $message" --text="None needs to be trashed" --width=1400
exit 0
fi
# Purging the section [trash] in the file .driveselect
.drive-write-driveselect trash "${null[@]}"
printf '%s\n' "${filtered_objects[@]}" | zenity --text-info --title "Do you confirm trashing ${#filtered_objects[@]} $message?" --width 1800 --height 800
if [[ ${PIPESTATUS[1]} -eq 0 ]]; then
# OK has been selected
> .driveoutput.log
# Trashing all objects listed in "${filtered_objects[@]}"
trash-objects | zenity --progress --percentage=0 --auto-close --title="Trashing ${#filtered_objects[@]} $message" --width 1800
readarray -t trashed_objects < <(cat .driveoutput.log | select_Trashed)
cat .driveoutput.log | zenity --text-info --title "Trashed ${#trashed_objects[@]}/${#filtered_objects[@]} $message" --width 1800 --height 800
rm .driveoutput.log
else
zenity --warning --title "Do you confirm trashing ${#filtered_objects[@]} $message?" --text="Operation cancelled" --width=1200
fi
exit 0
else
# Any -Parameter
end_of_help_message_line_number=$(awk '/^if \[\[ \$LOG_/{ print NR; exit }' $(which drive-trash))
((end_of_help_message_line_number--))
awk -v var=$end_of_help_message_line_number 'NR >= 20 && NR <= var' $(which drive-trash) | zenity --text-info --title "drive-trash help" --width 1125 --height 1000
exit 1
fi
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