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aaronmk
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#!/bin/bash
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aaronmk
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# Sets a password environment variable
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self="$(readlink -f -- "$BASH_SOURCE")"
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1091
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aaronmk
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test -t 2 && ccTty= || ccTty=1 # cc the tty if stderr is a log file
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{
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1090
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aaronmk
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store=
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test _"$1" = _- && { store=1; shift;}
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if ! test "$#" -ge 1; then
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echo "Usage: . $self env_var [desc] (note initial \".\")"|fold -s
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aaronmk
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exit 2
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fi
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aaronmk
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1090
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aaronmk
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desc="$2"
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test -n "$desc" || desc="the $1 password"
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290
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function trace()
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{
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{ for arg in "$@"; do printf "%q " "$arg"; done; echo;}
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}
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1090
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aaronmk
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if test -n "$store" -o -z "${!1+t}"; then # env var with name $1 is unset
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if test -n "$store"; then
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aaronmk
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echo "[7m To change the saved value for $desc, run: [0m"
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aaronmk
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else
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1091
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echo "[101;97m You must first store $desc. At the shell, run: [39;49m"
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292
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fi
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293
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trace . "$self" - "$@"
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1090
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aaronmk
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test -z "$store" && exit 1 # just direct user how to store password
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aaronmk
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read -s -p "Enter $desc: "; echo
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export "$1"="$REPLY"
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fi
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} 2>&1|tee ${ccTty:+/dev/tty} >&2
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