109 lines
2.5 KiB
Bash
Executable File
109 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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_usage () {
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cat <<EOF
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Usage: ${1##*/} [-m METHOD] [-v] FILES|FOLDERS
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Create an archive in current folder from a single or multiples
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files/folders. Each input entry will be at archive root (no absolute path is
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used). If only one file/folder is given as input, then the archive is named
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after this input. Otherwise it is named after current PWD.
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-h: Display this help.
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-i: The archive is created without owner/group information. (GNU tar only.)
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-m: Choose compression method.
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* gz: gzip (default).
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* none: Simple tar archive.
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* xz: LZMA.
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-s: Archive each input entry an individual file.
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-v: Exclude VCS data. (GNU tar only.)
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EOF
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}
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OUTPATH="$PWD"
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ARCEXT=".gz"
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ARCOPT="z"
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OPTIONS=""
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OPT_SPLIT=false
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while getopts ":him:sv" opt; do
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case $opt in
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h)
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_usage "$0"
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exit 1 ;;
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i)
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OPTIONS="$OPTIONS --owner=root --group=root --numeric-owner" ;;
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m)
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[ "$OPTARG" = "gz" ] && ARCEXT=".gz" && ARCOPT="z"
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[ "$OPTARG" = "xz" ] && ARCEXT=".xz" && ARCOPT="J"
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[ "$OPTARG" = "none" ] && ARCEXT="" && ARCOPT=""
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;;
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s)
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OPT_SPLIT=true ;;
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v)
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OPTIONS="$OPTIONS --exclude-vcs" ;;
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\?)
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_usage "$0"
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exit 1 ;;
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esac
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done
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shift $(($OPTIND - 1))
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if [ $# -eq 0 ]; then
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_usage "$0"
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exit 1
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fi
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## We need 'realpath' since we need to work on the real path for the input
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## files/folders and the archive location. Otherwise we could have troubles with
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## circular symlinks and so on.
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if ! command -v realpath >/dev/null 2>&1; then
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echo >&2 "'realpath' not found in PATH. Exiting."
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exit 1
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fi
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_archive () {
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## Only one input entry: use it as base name for the archive.
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if [ $# -eq 1 ]; then
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REALPATH="$(realpath "$1")"
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OUTFILE="${REALPATH##*/}-$(date +%F-%H%M%S).tar${ARCEXT}"
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else
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OUTFILE="${PWD##*/}-$(date +%F-%H%M%S).tar${ARCEXT}"
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fi
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REALPWD="$(realpath "$PWD")"
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for i; do
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REALPATH="$(realpath "$i")"
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## Check if one of the arguments is current folder. We need to make sure the
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## archive is not created in an input folder, otherwise it will include
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## itself.
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if [ "$REALPATH" = "$REALPWD" ]; then
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OUTPATH="$(realpath "$REALPWD/..")"
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break
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fi
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done
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if [ ! -w "$OUTPATH" ]; then
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echo "[$OUTPATH] is not writable. Exiting."
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return
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fi
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echo "==> [$OUTPATH/$OUTFILE]"
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for i; do
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REALPATH="$(realpath "$i")"
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echo "${REALPATH}" >&2
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echo "-C '${REALPATH%/*}'"
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echo "${REALPATH##*/}"
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done | tar $OPTIONS -${ARCOPT}cf "$OUTPATH/$OUTFILE" -T -
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}
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if $OPT_SPLIT; then
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for j ; do
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_archive "$j"
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done
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else
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_archive "$@"
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fi
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