mirror of https://gitlab.com/dabruh/dotfiles.git
88 lines
2.2 KiB
Plaintext
88 lines
2.2 KiB
Plaintext
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#!/bin/bash
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# converta
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#
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# Run `convert` over a directory and filter files by a particular pattern
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#
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# Example - Convert all ARW files in ~/Pictures to PNG:
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# ./converta -d ~/Pictures -p '.*.ARW' -e PNG
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script_name="$(basename -- "$0")"
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force=false
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function usage() {
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echo "Usage: $script_name [OPTIONS]"
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echo
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echo "Options:"
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echo " -h Display help"
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echo " -d [DIRECTORY] Directory of files to process"
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echo " -o [EXTENSION] Target extension"
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echo " -l [LEVELS] Limit the amount of directory levels to process"
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echo " -p [PATTERN] Extended regular expression pattern for filtering files"
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echo
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echo "Example:"
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echo " $script_name -d ~/Pictures -o JPG -l 2 -p '.*.ARW$'"
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}
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while getopts ":d:o:l:p:fh" arg; do
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case $arg in
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d) directory=$OPTARG ;;
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o) extension=$OPTARG ;;
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l) levels="-maxdepth $OPTARG" ;;
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p) pattern=$OPTARG ;;
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f) force=true ;;
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h)
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usage
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exit 0
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;;
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:)
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echo "$script_name: Must supply an argument to -$OPTARG." >&2
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usage
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exit 1
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;;
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?)
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echo "Invalid option: -${OPTARG}."
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echo
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usage
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exit 2
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;;
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esac
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done
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[ -z "$directory" ] && usage && exit 1
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[ -z "$extension" ] && usage && exit 1
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[ -z "$pattern" ] && usage && exit 1
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# Kill ourself with SIGINT upon receiving SIGINT:
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trap '
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trap - INT # restore default INT handler
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kill -s INT "$$"
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' INT
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echo "Will $($force && echo "forcibly ")convert files in '$directory' that match '$pattern' to '$extension'"
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# shellcheck disable=SC2086
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while read -r input_path; do
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file="$(basename "$input_path")"
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output_path="${input_path%.*}.$extension"
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addl_str=""
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cvt=true
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grep -Eq "$pattern" <<<"$file" || continue
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if [ -f "$output_path" ]; then
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if [ "$(wc -c <"$output_path")" -eq 0 ]; then
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addl_str=" (exists, 0 bytes)"
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rm "$output_path"
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elif ! $force; then
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addl_str=" (already converted)"
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cvt=false
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else
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addl_str=" (overwriting)"
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rm "$output_path"
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fi
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fi
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echo "$input_path -> $output_path$addl_str"
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$cvt && convert "$input_path" "$output_path"
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done <<<"$(find "$directory" $levels -type f)"
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