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35
README.md
35
README.md
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# agetar
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# agetar
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actual description and development pending... I am lazy
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`agetar` is a simple wrapper around `tar` and `age` to easily pack files into an encrypted tar archive or extract files from an encrypted tar archive.
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## dependencies
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- a posix-compliant shell
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- either `bsdtar` or `tar` (`bsdtar` takes priority)
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- [age](https://github.com/FiloSottile/age)
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# usage
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```
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usage:
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agetar -e (-r RECIPIENT | -R PATH)... [-a] [-o OUTPUT] [--] FILES...
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agetar -e -p [-a] [-o OUTPUT] [--] FILES...
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agetar -d [-i PATH]... [-o OUTPUT] [--] FILES...
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options:
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-e encrypt the input files to an output tar
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-d decrypt the input tar to output files
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-o OUTPUT encrypting: write output tar to OUTPUT. stdout if omitted
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decrypting: directory to extract to. PWD if omitted
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-a encrypt to a PEM encoded format
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-p encrypt with a passphrase
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-r RECIPIENT encrypt to the specified RECIPIENT. can be repeated
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-R PATH encrypt to the recipients listed at PATH. can be repeated
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-i PATH decrypt using the identity file at PATH. can be repeated
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at least one FILE is required for both encrypting and decrypting
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if multiple are present, each will be processed with the same identities
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you probably want an OUTPUT when encrypting, even if it's not required
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(age will yet at you for that anyway unless you also use -a)
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most of these options are passed directly to age(1). see its man page for
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more details.
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```
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45
agetar
45
agetar
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@ -1,17 +1,13 @@
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#!/bin/sh
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#!/bin/sh
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# I can't believe I'm making this
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RED="$(printf '\033[38;5;9m')"
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RESET="$(printf '\033[m')"
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RED="$(tput setaf 9)" || RED="$(tput setf 4)"
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GREEN="$(tput setaf 10)" || GREEN="$(tput setf 2)"
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YELLOW="$(tput setaf 11)" || YELLOW="$(tput setf 6)"
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RESET="$(tput sgr0)"
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set -euf
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set -euf
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BN="${0##*/}"
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BN="${0##*/}"
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export POSIXLY_CORRECT=1
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export POSIXLY_CORRECT=1
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if [ "${NO_COLOR:-}" ]; then
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if [ "${NO_COLOR:-}" ]; then
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RED="" GREEN="" YELLOW="" RESET=""
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RED="" RESET=""
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fi
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fi
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errecho() {
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errecho() {
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@ -22,11 +18,34 @@ fail() {
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errecho "${RED}error: $BN: $RESET$*"
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errecho "${RED}error: $BN: $RESET$*"
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exit 1
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exit 1
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}
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}
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_type() { type >/dev/null 2>&1 ; }
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usage() {
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usage() {
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cat >&2 <<-EOF
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cat >&2 <<-EOF
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usage:
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usage:
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$BN
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$BN -e (-r RECIPIENT | -R PATH)... [-a] [-o OUTPUT] [--] FILES...
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$BN -e -p [-a] [-o OUTPUT] [--] FILES...
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$BN -d [-i PATH]... [-o OUTPUT] [--] FILES...
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options:
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-e encrypt the input files to an output tar
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-d decrypt the input tar to output files
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-o OUTPUT encrypting: write output tar to OUTPUT. stdout if omitted
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decrypting: directory to extract to. PWD if omitted
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-a encrypt to a PEM encoded format
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-p encrypt with a passphrase
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-r RECIPIENT encrypt to the specified RECIPIENT. can be repeated
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-R PATH encrypt to the recipients listed at PATH. can be repeated
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-i PATH decrypt using the identity file at PATH. can be repeated
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at least one FILE is required for both encrypting and decrypting
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if multiple are present, each will be processed with the same identities
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you probably want an OUTPUT when encrypting, even if it's not required
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(age will yet at you for that anyway unless you also use -a)
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most of these options are passed directly to age(1). see its man page for
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more details.
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EOF
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EOF
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}
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}
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@ -56,8 +75,8 @@ shift $((OPTIND - 1))
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TAR="$(mktemp)"
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TAR="$(mktemp)"
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trap 'rm "$TAR"' INT HUP QUIT EXIT
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trap 'rm "$TAR"' INT HUP QUIT EXIT
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if [ "$TYPE" = "e" ]; then
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if [ "$TYPE" = "e" ]; then
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{ type bsdtar && CMD="bsdtar -rL -f"; } || \
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{ _type bsdtar && CMD="bsdtar -rL -f"; } || \
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{ type tar && CMD="tar -rh -f"; } || \
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{ _type tar && CMD="tar -rh -f"; } || \
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fail "can't find tar command!"
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fail "can't find tar command!"
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for f; do
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for f; do
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if [ -f "$f" ] || [ -d "$f" ]; then
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if [ -f "$f" ] || [ -d "$f" ]; then
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done
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done
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eval 'age $AGEOPTS ${OUTPUT:+-o "$OUTPUT"} '"$RECIPIENTS $RECIPIENTS_FILES $IDENTITIES"' "$TAR"'
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eval 'age $AGEOPTS ${OUTPUT:+-o "$OUTPUT"} '"$RECIPIENTS $RECIPIENTS_FILES $IDENTITIES"' "$TAR"'
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else
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else
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{ type bsdtar && CMD="bsdtar -x -f"; } || \
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{ _type bsdtar && CMD="bsdtar -x -f"; } || \
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{ type tar && CMD="tar -x -f"; } || \
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{ _type tar && CMD="tar -x -f"; } || \
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fail "can't find tar command!"
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fail "can't find tar command!"
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for f; do
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for f; do
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eval 'age $AGEOPTS -o "$TAR" '"$RECIPIENTS $RECIPIENTS_FILES $IDENTITIES"' "$f"'
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eval 'age $AGEOPTS -o "$TAR" '"$RECIPIENTS $RECIPIENTS_FILES $IDENTITIES"' "$f"'
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[ ! -d "${OUTPUT:=$PWD}" ] && mkdir -p "$OUTPUT"
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[ ! -d "${OUTPUT:="$PWD"}" ] && mkdir -p "$OUTPUT"
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$CMD "$TAR" -C "$OUTPUT"
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$CMD "$TAR" -C "$OUTPUT"
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done
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done
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fi
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fi
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