mirror of
https://github.com/kevinnlsamuel/bak-old.git
synced 2025-12-06 10:05:58 +05:30
beta completed
- added UNIX-style
- cp lightness `-0 | -1`
- version `-v`
- recurse `-r`
- copying function created and stablised
- add more prompt functions
- improve dest handling - moved to start
- add debugging option
This commit is contained in:
kevinnls
153
bak-old.sh
153
bak-old.sh
@@ -5,6 +5,7 @@
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# - another Linux user tired of #
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# type cp file file.bak #
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###################################
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version='0.1.0-beta'
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### IFS precautions
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OLDIFS="$IFS"
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@@ -17,46 +18,76 @@ unset IFS
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# ` ` follow symlinks
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# ` ` lightweight copies
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debug(){
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set -xev
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}
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print_usage(){
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cat << HERE
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cat << HERE
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$(tput bold; tput setaf 3)${0##*/}$(tput sgr0)
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Create copies of files with .bak or .old suffixes
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$(tput bold)USAGE$(tput sgr0)
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$(tput bold)${0##*/}$(tput sgr0) [-b|o] FILES [ -d DESTINATION ]
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$(tput bold)${0##*/}$(tput sgr0) [-b|o] [-0|1] [-r] FILES [ -d DESTINATION ]
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$(tput bold)OPTIONS$(tput sgr0)
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Suffix for FILES -- only one can be used
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-b $(tput bold).bak$(tput sgr0) [default]
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-o $(tput bold).old$(tput sgr0)
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Destination for clones
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-d \`cp FILES DESTINATION/FILES.suffix\`
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-d save the clones in DESTINATION
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[default] is the current directory
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Lightweight copies
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-0 create if possible [default]
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-1 force regular copies
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Recursive clone
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-r clone a directory and its contents
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HERE
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}
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print_version(){
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cat << HERE
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$(tput bold)${0##*/}: v${version}$(tput sgr0)
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by https://github.com/kevinnls
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HERE
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}
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set_dest(){
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dest=$1
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if [[ -n "$1" ]] && ! realpath -e "$1" >/dev/null 2>&1 ;then
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echo $1 does not exist
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echo creating now...
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mkdir -p $(realpath "$1")
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[[ $? -ne 0 ]] && exit 1
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fi
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dest=$(realpath "$1")
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}
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set_mode(){
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if [[ -z $mode ]]; then
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mode=$1
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else
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inexclusive_flags
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print_error 'bo'
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fi
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}
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set_weight(){
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if [[ -z "$weight" ]]; then
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weight="$1"
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else
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print_error '01'
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fi
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}
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add_file(){
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files=("${files[@]}" "$1")
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}
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in_combi(){
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[[ "$combi" =~ [:alnum:]*($1){1}[:alnum:]* ]]
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}
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un_combi(){
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combi=${combi/$1/}
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}
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parse_combined(){
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combi=${1/-/}
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in_combi(){
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[[ "$combi" =~ [:alnum:]*($1){1}[:alnum:]* ]]
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}
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un_combi(){
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combi=${combi/$1/}
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}
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combi="${1/-/}"
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if in_combi 'b';then
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set_mode bak
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@@ -66,41 +97,94 @@ parse_combined(){
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set_mode old
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un_combi 'o'
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fi
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if in_combi '0'; then
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set_weight 'auto'
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un_combi '0'
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fi
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if in_combi '1'; then
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set_weight 'never'
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un_combi '1'
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fi
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[[ "$combi" =~ [:alnum:]*(d){1} ]] && set_dest $2 && ret=2
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if [[ -z "$combi" ]]; then
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return ${ret:-1} #return number of positions to shift
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return ${ret:-1}
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else
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tput setaf 1
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echo "ERROR: unrecognised flags"
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tput sgr0
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print_usage
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print_error 'x'
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exit 1
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fi
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}
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inexclusive_flags(){
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echo "modes backup and old cannot co-exist"
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exit
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print_error(){
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tput setaf 1
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case $1 in
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bo)
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echo "ERROR: modes backup and old cannot co-exist"
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;;
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01)
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echo "ERROR: lightweight copy modes cannot co-exist"
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;;
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x)
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echo "ERROR: unrecognised flags"
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tput sgr0
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print_usage
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;;
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*)
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echo "UNKNOWN ERROR"
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esac
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tput sgr0
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exit 1
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}
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copy_succ(){
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echo " ✅ $(tput setaf 2; tput bold)$file.${mode:-bak}$(tput sgr0)"
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}
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copy_fail(){
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echo " ❌ $(tput setaf 1; tput bold)$file$(tput sgr0)"
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}
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copy_nofile(){
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echo " ❌ $(tput setaf 1; tput bold)$file$(tput sgr0) : file does not exist"
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}
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### enable debugging ###
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${DEBUG+debug} ###
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### if $DEBUG is set ###
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###############################################################################
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# SANITISING PARAMS AND OPTIONS
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################################
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while [[ $# -gt 0 ]]; do
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case $1 in
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'-h' )
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print_usage
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exit 0
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;;
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'-v' )
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print_version
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exit 0
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;;
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'-r' )
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recurse='-r' #set_recurse
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shift 1
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;;
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'-d' )
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set_dest "$2"
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shift 2
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;;
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'-b' )
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set_mode bak
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set_mode 'bak'
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shift 1
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;;
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'-o' )
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set_mode old
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set_mode 'old'
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shift 1
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;;
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'-0' )
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set_weight 'auto'
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shift 1
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;;
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'-1')
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set_weight 'never'
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shift 1
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;;
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-* )
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@@ -114,10 +198,23 @@ while [[ $# -gt 0 ]]; do
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esac
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done
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echo params sanitised
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echo files: ${files[@]}
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echo mode: $mode
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echo dest: $dest
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################################################################################
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# THE ACTUAL COPYING CODE
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##########################
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for file in "${files[@]}"; do
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if realpath -e "$file" >/dev/null 2>&1 ;then
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src_filepath="$(realpath "$file")"
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dst_filepath="${dest:-${src_filepath%/*}}"
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dst_filename="${src_filepath##*/}.${mode:-bak}"
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cp_weight="--reflink=${weight:-auto}"
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cp ${recurse} ${cp_weight} "$src_filepath" "$dst_filepath/$dst_filename"
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[[ $? -eq 0 ]] && copy_succ || copy_fail
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else
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copy_nofile
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fi
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done
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### reset IFS
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IFS="$OLDIFS"
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