63 lines
1.2 KiB
Plaintext
63 lines
1.2 KiB
Plaintext
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#!@TERMUX_PREFIX@/bin/bash
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set -e -u
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export PREFIX=@TERMUX_PREFIX@
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msg() {
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echo "$@" >&2
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}
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show_usage() {
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msg
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msg "Usage: termux-backup [output file]"
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msg
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msg "Script for backing up Termux installation directory, \$PREFIX."
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msg "It WILL NOT backup your home directory."
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msg
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msg "Backup is performed as TAR archive. Compression is determined"
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msg "by output file extension. If file name is '-', then tarball is"
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msg "written to stdout and is uncompressed."
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msg
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}
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if [ $# -lt 1 ]; then
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msg
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msg "[!] Output file path is not specified."
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show_usage
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exit 1
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fi
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if [ $# -gt 1 ]; then
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shift 1
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msg
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msg "[!] Got extra arguments: $@"
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show_usage
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exit 1
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fi
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if [ ! -d "$PREFIX" ]; then
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msg "[!] $PREFIX: directory does not exist."
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exit 1
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fi
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case "$1" in
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-?|-h|--help|--usage) show_usage; exit 0;;
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*) BACKUP_FILE_PATH=$1;;
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esac
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if [ "$BACKUP_FILE_PATH" != "-" ]; then
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CAN_AUTOCOMPRESS=yes
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if [ -e "$BACKUP_FILE_PATH" ]; then
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msg
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msg "[!] Refusing to overwrite already existing file '$BACKUP_FILE_PATH'."
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msg
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exit 1
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fi
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else
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CAN_AUTOCOMPRESS=
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fi
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tar --warning=no-file-ignored -f "$BACKUP_FILE_PATH" \
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-c ${CAN_AUTOCOMPRESS+--auto-compress} \
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-C "@TERMUX_BASE_DIR@" ./usr
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