Totally revamped and improved bashtrash.
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parent
f19c6dc1ff
commit
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410
trash
410
trash
@ -1,8 +1,9 @@
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#!/bin/bash
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#!/bin/sh
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# bashtrash - a bash script implementation of the FreeDesktop.org Trash
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# Specification.
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# shtrash - a pure POSIX shell script implementation of the
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# FreeDesktop.org Trash Specification.
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# Copyright (c) 2020, Bruce Hill <bruce@bruce-hill.com>
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# Copyright (c) 2009-2011, Robert Rothenberg <robrwo@gmail.com>
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# This program is free software; you can redistribute it and/or modify
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@ -15,261 +16,254 @@
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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version="0.4.0"
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version="0.5.0"
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progname=`basename $0`
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progname="$(basename "$0")"
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verbose_flag=
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interactive_flag=
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force_flag=
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function show_usage {
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fail() {
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echo "$@" 1>&2
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exit 1
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}
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show_usage() {
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cat << EOU
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Usage: ${progname} [OPTION]... FILE...
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Usage: $progname [OPTION]... FILE...
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Move files into the trash.
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Options:
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--version show program's version number and exit
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-h show this help message and exit
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-v explain what is being done
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-i prompt before moving every file
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-r, -R ignored (for compatability with rm)
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-f ignore non-existent files, never prompt
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-h, --help show this help message and exit
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-V, --version show program's version number and exit
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-v, --verbose explain what is being done
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-i, --interactive prompt before moving every file
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-f, --force ignore non-existent files, never prompt
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-r, -R, --recursive ignored (for compatability with rm)
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-u, --untrash restore file(s) from the trash
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-e, --empty choose files to empty from the trash
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-E, --empty-all empty all the files in the trash
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-l, --list list files in the trash
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-- Any arguments after '--' will be treated as filenames
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EOU
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}
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function try_help {
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echo "Try \`${progname} -h' for more information." 1>&2
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exit 1
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}
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# sed script to encode filenames
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sedscript='s/ /%20/g
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s/!/%21/g
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s/"/%22/g
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s/\#/%23/g
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s/\$/%24/g
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s/\&/%26/g
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s/'\''/%27/g
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s/(/%28/g
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s/)/%29/g
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s/\*/%2a/g
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s/+/%2b/g
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s/,/%2c/g
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s/-/%2d/g
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s/:/%3a/g
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s/;/%3b/g
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s//%3e/g
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s/?/%3f/g
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s/@/%40/g
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s/\[/%5b/g
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s/\\/%5c/g
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s/\]/%5d/g
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s/\^/%5e/g
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s/_/%5f/g
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s/`/%60/g
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s/{/%7b/g
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s/|/%7c/g
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s/}/%7d/g
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s/~/%7e/g
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s/ /%09/g'
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function url_encode {
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echo $1 |sed -e "$sedscript"
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}
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function get_trashdir {
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mounts=`awk '{ print $2 }' /proc/mounts`
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base=/
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if [ "$EUID" != "0" ]; then
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mounts="$HOME $mounts"
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fi
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for i in $mounts
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do
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if [[ $1 =~ ^$i ]]
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then
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if [[ $i =~ ^$base ]]
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then
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base=$i
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fi
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fi
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done
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if [ "$base" != "$HOME" ]; then
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trashdir="$base/.Trash/$UID"
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if [ ! -d "$trashdir" ]; then
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trashdir="$base/.Trash-$UID"
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fi
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mkdir -p "$trashdir"
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if [ "$?" != "0" ]; then
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base=$HOME
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fi
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fi
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if [ "$base" == "$HOME" ]; then
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base=$XDG_DATA_HOME
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if [ -z "$base" ]; then
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base="$HOME/.local/share/"
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fi
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trashdir="$base/Trash"
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fi
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echo $trashdir
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}
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function can_trash {
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filename="$1"
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if [ ! -e "$filename" ]; then
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if [ "$interactive" != "force" ]; then
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echo "${progname}: cannot move \`$filename' to trash: No such file or directory" 1>&2
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fi
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echo 0
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confirm() {
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[ "$force_flag" = "-f" ] && return 0
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if type ask >/dev/null; then
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ask -n "$@"
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else
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type="file"
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if [ -d "$filename" ]; then
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type="directory"
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# Get one character of input
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tput civis >/dev/tty;
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printf '\033[1m%s\033[0m' "$2" >/dev/tty;
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stty -icanon -echo >/dev/tty 2>/dev/tty;
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if [ "$(uname)" = "Darwin" ]; then
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read -n 1 REPLY </dev/tty >/dev/tty;
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else
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REPLY="$(dd bs=1 count=1 2>/dev/null </dev/tty)"
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fi
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case $interactive in
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never|force) echo 1 ;;
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always)
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read -p "${progname}: move ${type} '${filename}' to trash?" yn
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if [[ "$yn" =~ ^[yY]$ ]]; then
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echo 1
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else
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echo 0
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fi
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;;
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*) echo "${progname}: unsupported value interactive=${interactive}" 1>&2 ; echo 0; exit 1 ;;
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esac
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stty icanon echo >/dev/tty 2>/dev/tty
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tput cvvis >/dev/tty
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[ "$REPLY" = "y" ]
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fi
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}
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function init_trashdir {
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has_arg() {
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if type arg >/dev/null; then
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arg "$@" >/dev/null
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else
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target="$1"
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while [ $# -gt 0 ]; do
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[ "$1" = "$target" ] && return 0
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[ "$1" = "--" ] && break
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done
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false
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fi
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}
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is_valid_trashdir() {
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[ -d "$1" ] && expr "$(stat -c '%a' "$1")" : '^1[0-7]\{3\}' >/dev/null && ! [ -L "$1" ]
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}
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get_trashdir() {
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file="$(readlink -f -- "$1")"
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if [ -e "$file" ]; then
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file_base="$(df -h "$file" | awk 'NR==2 {print $NF}')"
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else
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file_base="$(awk -v f="$file" 'substr(f,1,length($2)+1)==($2 "/") && $2>best {best=$2} END {print best}' /proc/mounts)"
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fi
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home_base="$(df -h "$HOME" | awk 'NR==2 {print $NF}')"
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if [ "$file_base" = "$home_base" ]; then
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echo "$HOME/.Trash"
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elif is_valid_trashdir "$file_base/.Trash"; then
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echo "$file_base/.Trash"
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else
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echo "$file_base/.Trash-$(id -u)"
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fi
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}
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can_trash() {
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filename="$1"
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if [ ! -e "$filename" ]; then
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if [ "$force_flag" != "-f" ]; then
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fail "$progname: cannot move '$filename' to trash: No such file or directory"
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fi
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return 0
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fi
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if [ "$interactive_flag" = "-i" ]; then
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[ -d "$filename" ] && type=directory || type="file"
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confirm "$progname: move $type '$filename' to trash?"
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fi
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}
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init_trashdir() {
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trashdir=$1
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mkdir -p "$trashdir/files"
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if [ "$?" != "0" ]; then
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echo "${progname}: unable to write to $trashdir" 1>&2
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exit 2
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fi
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mkdir -p "$trashdir/info"
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if [ "$?" != "0" ]; then
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echo "${progname}: unable to write to $trashdir" 1>&2
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exit 2
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if ! [ -d "$trashdir" ]; then
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mkdir -m 1755 "$trashdir" || fail "Could not create trash directory"
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fi
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mkdir -p "$trashdir/files" || fail "$progname: unable to write to $trashdir"
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mkdir -p "$trashdir/info" || fail "$progname: unable to write to $trashdir"
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}
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function trash_file {
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path_from_trashinfo() {
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#sed -n 's/^Path=//p' "$1" | php -r 'echo urldecode(fgets(STDIN));'
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sed -n 's/^Path=//p' "$1" | perl -MURI::Escape -ne 'print uri_unescape $_'
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}
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trashinfo_for_file() {
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#php -r 'echo urlencode($argv[1]);' -- "$1"
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cat <<END
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[Trash Info]
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Path=$(perl -MURI::Escape -e 'print uri_escape $ARGV[0]' -- "$1")
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DeletionDate=$(date +"%FT%H:%M:%S")
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END
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}
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trash_file() {
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filename=$1
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dir=${filename%/*}
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trashdir=`get_trashdir "$dir"`
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trashdir="$(get_trashdir "$dir")"
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init_trashdir "$trashdir"
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trashname="${filename##*/}"
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origname="${trashname%%.*}"
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if [ -z "${origname}" ]; then
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if [ -z "$origname" ]; then
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origname="dotfile"
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fi
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ext=".${trashname##*.}"
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if [ "$ext" == ".$trashname" ]; then
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if [ "$ext" = ".$trashname" ]; then
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ext=""
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fi
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# Use -u (unsafe) option because we cannot mv a directory into a
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# file. This is technically "unsafe" but mv will ask for
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# confirmation when overwriting.
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deletedfile=$(mktemp -u "$trashdir/files/${origname}_XXXXXXXX")$ext
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deletedbase=$(basename "$deletedfile")
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deletedinfo="$trashdir/info/$deletedbase.trashinfo"
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deletedfile=$(mktemp -u "${trashdir}/files/${origname}_XXXXXXXX" )$ext
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deletedbase=$( basename "${deletedfile}" )
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deletedinfo="$trashdir/info/${deletedbase}.trashinfo"
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canon=`url_encode "$filename"`
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cat > "$deletedinfo" <<END
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[Trash Info]
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Path=$canon
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DeletionDate=`date +"%FT%H:%M:%S"`
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END
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if [ $verbose != 0 ]; then
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mv_opts="-v"
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else
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mv_opts=
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fi
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trashinfo_for_file "$filename" > "$deletedinfo" || \
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fail "$progname: unable to create trash info for $filename at $deletedinfo"
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# Note that the trashinfo file will have the ownership and
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# permissions of the person who deleted the file, and not
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# necessarily of the original file.
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mv $mv_opts "${filename}" "${deletedfile}"
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if [ "$?" != "0" ]; then
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echo "${progname}: unable to move ${filename} to ${deletedfile}" 1>&2
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if ! mv $verbose_flag -- "$filename" "$deletedfile"; then
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rm "$deletedinfo"
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exit 2
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fail "$progname: unable to move $filename to $deletedfile"
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fi
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}
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# Option handling
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untrash_files() {
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td="$(get_trashdir "$(readlink -f -- "${1:-$PWD}")")"
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[ -d "$td/info" ] || return 1
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ls -A "$td"/info | \
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fzf -1 --prompt="Pick file to untrash: " --query="$@" --multi \
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--preview="sh -c 'f=\"$td/files/\${1%.trashinfo}\"; [ -d \"\$f\" ] && tree \"\$f\" || echo \"\$f\" && cat \"\$f\"' -- {}" | \
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while read -r info; do
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orig="$(path_from_trashinfo "$td/info/$info")"
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mv -i "$td/files/${info%.trashinfo}" "$orig" && rm -f "$td/info/$info"
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done
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}
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function strip_quotes {
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x="$1"
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x="${x#\'}"
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x="${x%\'}"
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echo "${x}"
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empty_files() {
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td="$(get_trashdir "$(readlink -f -- "${1:-$PWD}")")"
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if [ -d "$td" ] && [ -z "$(ls -A "$td/files")" ]; then
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echo "Nothing in the trash!"
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exit
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fi
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ls -A "$td"/info | \
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fzf -1 --prompt="Pick file(s) to permanently delete: " --query="$@" --multi \
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--preview="sh -c 'f=\"$td/files/\${1%.trashinfo}\"; [ -d \"\$f\" ] && tree \"\$f\" || echo \"\$f\" && cat \"\$f\"' -- {}" | \
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while read -r info; do
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orig="$(path_from_trashinfo "$td/info/$info")"
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rm -r $verbose_flag "$td/info/$info" "$td/files/${info%.trashinfo}" || fail "Could not remove file"
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done
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printf '\033[1mDeleted!\033[0m\n'
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}
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empty_trash() {
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td="$(get_trashdir "$(readlink -f -- "${1:-$PWD}")")"
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if [ -d "$td" ] && [ -z "$(ls -A "$td/files")" ]; then
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echo "Nothing in the trash!"
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exit
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fi
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( printf '\033[1mThe following files will be deleted:\033[0m\n' &&
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printf ' \033[33;1m%s\033[0m\n' "$td"/files/* &&
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printf '\033[1mThis will free up %s of space\033[0m\n' "$(du -h --summarize "$td/files" | cut -f1)") | more
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confirm "Do you want to proceed?" || exit 1
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rm -r $verbose_flag "$td"/files/* "$td"/info/* || exit 1
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printf '\033[1mDeleted!\033[0m\n'
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}
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list_trash() {
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td="$(get_trashdir "$(readlink -f -- "${1:-$PWD}")")"
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if [ -d "$td" ] && [ -z "$(ls -A "$td/files")" ]; then
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echo "Nothing in the trash!"
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exit
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fi
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ls -A "$td/files"
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}
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if [ $# -eq 0 ]; then
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try_help
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show_usage
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fail "Try '$progname -h' for more information."
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fi
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verbose=0
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interactive=never
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filename=
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(has_arg -v "$@" || has_arg --verbose "$@") && verbose_flag=-v
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(has_arg -i "$@" || has_arg --interactive "$@") && interactive_flag=-i
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(has_arg -f "$@" || has_arg --force "$@") && force_flag=-f
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action=trash
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(has_arg -h "$@" || has_arg --help "$@") && action=help
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(has_arg -V "$@" || has_arg --version "$@") && action=version
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(has_arg -l "$@" || has_arg --list "$@") && action=list
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(has_arg -u "$@" || has_arg --untrash "$@") && action=untrash
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(has_arg -e "$@" || has_arg --empty "$@") && action=emptyfiles
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(has_arg -E "$@" || has_arg --empty-all "$@") && action=emptyall
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while getopts hvirRf arg; do
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case $arg in
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h) show_usage;
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exit 1
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;;
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i) interactive=always
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;;
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v) verbose=1
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;;
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r|R)
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;;
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f) interactive=force
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;;
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[?]) try_help
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exit 1
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;;
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esac
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while a="$(expr ";$1" : "^;\(--\|-[VhvirRfueEl]\+\|--version\|--help\|--verbose\|--interactive\|--recursive\|--force\|--untrash\|--empty\|--empty-all\|--list\)$")"; do
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shift
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[ "$a" = "--" ] && break
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done
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shift $(( OPTIND - 1))
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for f in "$@"; do
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# get full pathname of file
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filename="$(readlink -f "${f}")"
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yes=`can_trash "$filename"`
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if [ "$yes" != "0" ]; then
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trash_file "$filename"
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fi
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done
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exit 0
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case "$action" in
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help) show_usage ;;
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version) echo "$version" ;;
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list) list_trash ;;
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untrash) untrash_files "$@" ;;
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emptyfiles) empty_files "$@" ;;
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emptyall) empty_trash "$@" ;;
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trash)
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for f; do
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filename="$(readlink -f -- "$f")"
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if ! [ -e "$filename" ]; then
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[ "$force_flag" != "-f" ] || fail "File does not exist: $filename"
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else
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can_trash "$filename" && trash_file "$filename" || exit 1
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fi
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done
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;;
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esac
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