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- function ua() {
- local usage=\
- "Archive files and directories using a given compression algorithm.
- Usage: $0 <format> <files>
- Example: $0 tbz PKGBUILD
- Supported archive formats are:
- 7z, bz2, gz, lzma, lzo, rar, tar, tbz (tar.bz2), tgz (tar.gz),
- tlz (tar.lzma), txz (tar.xz), tZ (tar.Z), xz, Z, zip, and zst."
- if [[ $# -lt 2 ]]; then
- print -u2 -- "$usage"
- return 1
- fi
- local ext="$1"
- local input="${2:a}"
- shift
- if [[ ! -e "$input" ]]; then
- print -u2 -- "$input not found"
- return 1
- fi
- # generate output file name
- local output
- if [[ $# -gt 1 ]]; then
- output="${input:h:t}"
- elif [[ -f "$input" ]]; then
- output="${input:r:t}"
- elif [[ -d "$input" ]]; then
- output="${input:t}"
- fi
- # if output file exists, generate a random name
- if [[ -f "${output}.${ext}" ]]; then
- output=$(mktemp "${output}_XXX") && rm "$output" || return 1
- fi
- # add extension
- output="${output}.${ext}"
- # safety check
- if [[ -f "$output" ]]; then
- print -u2 -- "output file '$output' already exists. Aborting"
- return 1
- fi
- case "$ext" in
- 7z) 7z u "${output}" "${@}" ;;
- bz2) bzip2 -vcf "${@}" > "${output}" ;;
- gz) gzip -vcf "${@}" > "${output}" ;;
- lzma) lzma -vc -T0 "${@}" > "${output}" ;;
- lzo) lzop -vc "${@}" > "${output}" ;;
- rar) rar a "${output}" "${@}" ;;
- tar) tar -cvf "${output}" "${@}" ;;
- tbz|tar.bz2) tar -cvjf "${output}" "${@}" ;;
- tgz|tar.gz) tar -cvzf "${output}" "${@}" ;;
- tlz|tar.lzma) XZ_OPT=-T0 tar --lzma -cvf "${output}" "${@}" ;;
- txz|tar.xz) XZ_OPT=-T0 tar -cvJf "${output}" "${@}" ;;
- tZ|tar.Z) tar -cvZf "${output}" "${@}" ;;
- xz) xz -vc -T0 "${@}" > "${output}" ;;
- Z) compress -vcf "${@}" > "${output}" ;;
- zip) zip -rull "${output}" "${@}" ;;
- zst) zstd -c -T0 "${@}" > "${output}" ;;
- *) print -u2 -- "$usage"; return 1 ;;
- esac
- }
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