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Improve root privilege elevation #14

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164ce1d
Improve root privilege elevation
OliverRhyme Oct 10, 2021
cc1c9f4
Cleanup code
OliverRhyme Oct 10, 2021
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26 changes: 20 additions & 6 deletions install_on_linux.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -15,20 +15,34 @@ if [ $? -ne 0 ]; then
exit 1
fi

curl -fL $COMPOSE_SWITCH_URL -o /usr/local/bin/compose-switch
chmod +x /usr/local/bin/compose-switch
sh_c='sh -c'
sudo_sh_c='sh -c'
if [ "$user" != 'root' ]; then
if [ "$(command -v sudo)" ]; then
sudo_sh_c='sudo -E sh -c'
elif [ "$(command -v su)" ]; then
sudo_sh_c='su -c'
else
echo "Error: This installer needs the ability to run commands as root."
exit 1
fi
fi

$sudo_sh_c "curl -fL $COMPOSE_SWITCH_URL -o /usr/local/bin/compose-switch"
$sudo_sh_c "chmod +x /usr/local/bin/compose-switch"

COMPOSE=$(command -v docker-compose)
if [ "$COMPOSE" = /usr/local/bin/docker-compose ]; then
# This is a manual installation of docker-compose
# so, safe for us to rename binary
mv /usr/local/bin/docker-compose /usr/local/bin/docker-compose-v1
$sudo_sh_c "mv /usr/local/bin/docker-compose /usr/local/bin/docker-compose-v1"
COMPOSE=/usr/local/bin/docker-compose-v1
fi

ALTERNATIVES="update-alternatives"

ALTERNATIVES="$sudo_sh_c update-alternatives"
if ! command -v $ALTERNATIVES; then
ALTERNATIVES=alternatives
ALTERNATIVES="$sudo_sh_c alternatives"
fi

echo "Configuring `docker-compose` alternatives"
Expand All @@ -38,4 +52,4 @@ fi
$ALTERNATIVES --install /usr/local/bin/docker-compose docker-compose /usr/local/bin/compose-switch 99

echo "'docker-compose' is now set to run Compose V2"
echo "use '$ALTERNATIVES --config docker-compose' if you want to switch back to Compose V1"
echo "use '$ALTERNATIVES --config docker-compose' if you want to switch back to Compose V1"