Options parser, --userspec
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1 changed files with 30 additions and 5 deletions
35
run.sh
35
run.sh
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@ -1,7 +1,11 @@
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#!/usr/bin/env bash
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help () {
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echo 'dchr-run <chroot-dir> [command]'
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echo 'dchr-run [options] <chroot-dir> [command]'
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echo '-- options:'
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echo ' -u uid[:gid] invoke command in chroot as a different user'
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# TODO:
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#echo ' -x11 apply options for correctly starting GUI apps'
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echo 'https://dchr.dc09.ru'
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}
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@ -28,22 +32,43 @@ setup () {
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runcmd () {
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echo -e '-- \e[1;32mOK\e[0m -- running chroot'
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chrdir="$1"
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shift
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userspec="--userspec=$1"
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chrdir="$2"
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shift 2
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chrcmd=("$@")
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chroot "$chrdir" "${chrcmd[@]}"
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chroot "$userspec" "$chrdir" "${chrcmd[@]}"
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}
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main () {
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[[ "$1" == "--help" || "$1" == "" ]] && help && exit 0
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userspec="$(id -u):$(id -g)"
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while [[ "$1" == -* ]]
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do
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case "$1" in
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-u)
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userspec="$2"
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shift 2
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;;
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#-x11);; TODO
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*)
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echo -ne '-- \e[1mInvalid option:\e[0m '
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echo "$1"
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echo '-- Use ./ or full path if your chroot-dir starts with dash (-)'
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help
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exit 2
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;;
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esac
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done
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chrdir=$(readlink -f "$1")
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shift
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trap "clean \"$chrdir\"" EXIT
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setup "$chrdir"
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runcmd "$chrdir" "$@"
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runcmd "$userspec" "$chrdir" "$@"
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exit $?
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}
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