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#!/bin/bash
###################################################################################################
# drive-check-duplicates
###################################################################################################
# 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.
###################################################################################################
###################################################################################################
#
# Checking for duplicates by looking for "clashes", i.e objects (objects) with the same name in
# the same location.
#
###################################################################################################
#
# Requirements:
# ------------
#
# - We assume that:
# + drive-google package is already installed.
# + coreutils, perl-base, sed & zenity packages are already installed.
#
# - This command must be called from within your local Google drive folder(s).
#
# - <google_drive_folder>/.driverc:it must be properly setup, either manually or with drive-setup,
# with the following settings:
# * depth=
# + -1: an infinite traversal depth, i.e recursive traversal from the current working
# directory until there is no more child folder
# + non-zero number: a fixed traversal depth
# * fix-mode=
# + rename: default value telling drive to rename duplicate objects
# + trash: tells drive to trash duplicate objects instead
# * ...: 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:
# ----------
#
# - <anything> will display this help message
#
###################################################################################################
#
# Usage example:
# -------------
#
# cd ~/<google_drive_folder>
# drive-check-duplicates
#
###################################################################################################
if [[ $LOG_DRIVE_CHECK_DUPLICATES == ON ]]; then
# Getting the last existing file descriptor of ~/.drive-google/logs/drive-google.log
fd=$(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}.${LINENO}+ '
# Expanding all variables and prints the full commands before output of the command
set -x
fi
# Preventing globbing (pathname expansion)
set -o noglob
# Allowing extended globbing
shopt -s extglob
# Expanding aliases
shopt -s expand_aliases
# Including alias definitions to sed/grep/awk/perl commands for readability sake
. /usr/include/drive-google/aliases
#------------------------------------check-duplicate-objects---------------------------------------
# Checking for duplicates among all objects listed in "${filtered_objects[@]}"
# Usage: check-duplicate-objects | zenity --progress --percentage=0 --auto-close
# Return strings which feed 'zenity --progress'
# - "# Checking for duplicate $object"
# - "$current_percentage"
# The function uses the global array variables:
# - "${filtered_objects[@]}"
function check-duplicate-objects ()
{
# Initializing:
# - current checked objects number so far,
# - current percentage of checked objects so far,
current_objects_number=0
current_percentage=0
# Reading fix_mode from .driverc
fix_mode_value=$(.drive-read-driverc fix-mode clashes)
if [[ "$fix_mode_value" != 'trash' ]]; then
# Setting default value
fix_mode_value=rename
fi
for object in "${filtered_objects[@]}"
do
# Removing leading object stats
object=$(echo "$object" | rm_object_stats)
# Feeding 'zenity --progress'
LC_ALL=C printf '%s\n' "# Checking for duplicate $object"
# Removing all occurrences of '&' in $object as a workaround to a markup ampersand issue with zenity
noamp_object=$(echo "${object}" | rm_ampersand)
fix=false
# While there is a connection error and the user wants to continue trying
while :
do
unset output
if [[ $fix == false ]]; then
# Checking for duplicates
output=$(drive clashes -depth 1 "$object" 2>&1)
else
# Fixing duplicates by trashing or renaming them
output=$(drive clashes -fix -fix-mode $fix_mode_value -no-prompt -depth 1 "$object" 2>&1)
fi
# Checking $output
if [[ "${output[@]}" =~ 'no clashes exist!' ]]; then
output="No duplicate:\t\t${object}"
elif [[ "${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\t${object}"
else
if [[ $fix == false ]]; then
fix=true
continue
else
unset output
output="Fixed duplicate:\t${object}"
fi
fi
if [[ ("$output" =~ 'No duplicate') || ("$output" =~ 'Fixed duplicate') || ("$output" =~ 'Absent') ]]; then
(( current_objects_number++ ))
# Computing the current percentage of pulled objects
current_percentage=$(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-check-duplicates----------------------------------------
# Checking for no parameter
if [[ $# -eq 0 ]]; then
local_folder="$(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: $return_code\n\nPlease report that issue to: https://gitlab.com/jean-christophe-manciot/Drive/issues" --width 1200
exit 99
;;
esac
# Filtering & sorting the objects list
readarray -t filtered_objects < <(.drive-select-objects 'remote_fs' 'clashes')
if [[ "${filtered_objects[0]}" =~ 'Connection error accessing your Google Drive online in' ]]; then
# Nothing can be done
zenity --error --title "Fatal Error" --text="Operation cancelled" --width 800
exit 9
elif [[ ${#filtered_objects[@]} -eq 0 ]]; then
zenity --warning --title "Checking for duplicates among 0 remote Google Drive objects in ${noamp_local_folder}" --text="None needs to be checked" --width=1400
exit 0
fi
printf '%s\n' "${filtered_objects[@]}" | zenity --text-info --title "Do you confirm checking for duplicates among the following ${#filtered_objects[@]} remote Google Drive objects in ${noamp_local_folder}?" --height 800 --width 1400
if [[ ${PIPESTATUS[1]} -eq 0 ]]; then
# OK has been selected
> .driveoutput.log
# Checking for duplicates among all objects listed in "${filtered_objects[@]}"
check-duplicate-objects | zenity --progress --percentage=0 --auto-close --title="Checking for duplicates among ${#filtered_objects[@]} remote Google Drive objects" --width 1800
readarray -t unduplicate_objects < <(cat .driveoutput.log | select_duplicate)
cat .driveoutput.log | zenity --text-info --title "Found unduplicated/deduplicated ${#unduplicate_objects[@]}/${#filtered_objects[@]} remote Google Drive objects in ${noamp_local_folder}" --width 1800 --height 800
rm .driveoutput.log
else
zenity --warning --title "Do you confirm checking for duplicates among the following ${#filtered_objects[@]} remote Google Drive objects?" --text="Operation cancelled" --width=1200
exit 3
fi
exit 0
else
# Any parameter
end_of_help_message_line_number=$(awk '/^if \[\[ \$LOG_/{ print NR; exit }' $(which drive-check-duplicates))
((end_of_help_message_line_number--))
awk -v var=$end_of_help_message_line_number 'NR >= 20 && NR <= var' $(which drive-check-duplicates) | zenity --text-info --title "drive-check-duplicates help" --width 1150 --height 1000
exit 1
fi
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