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Make the script a bit more reliable

Frank Denis 2019-07-21 02:05:29 +02:00
parent 23e5e2b9ff
commit cc07466f25
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76
Updates.md

@ -1,69 +1,33 @@
# Automatic Update For Linux
The script below will check to see if dnscrypt-proxy needs updating by comparing the installed version with the latest git version.
#! /bin/sh
If the installed version is older, then the script will update to the newest version.
Tested on: Ubuntu 18.04
## Requirements
This script requires dnscrypt-proxy to be installed as a service using,`./dnscrypt-proxy -service install` and for dnscrypt-proxy to be installed in `/opt/dnscrypt-proxy` and for the configuration file to be named `dnscrypt-proxy.toml`.
If dnscrypt-proxy is not run as root then, change `sudo chown root:root -R /opt/dnscrypt-proxy` to the user dnscrypt-proxy is run as.
## Configuration
Initially make sure all the above requirements are met.
Then to get this script to automatically run add this as a cron job under root using `sudo crontab -e` but, change the file path to the file path the script is saved.
`0 */12 * * * /path/dnscrypt-proxy-update.sh`
Also, this script needs to be run as root.
```sh
#!/bin/sh
INSTALL_DIR="/opt/dnscrypt-proxy"
LATEST_URL="https://api.github.com/repos/jedisct1/dnscrypt-proxy/releases/latest"
Update() {
cd /opt/dnscrypt-proxy
sudo mv dnscrypt-proxy.toml /opt/
cd /opt
sudo curl -L -O $( curl -s https://api.github.com/repos/jedisct1/dnscrypt-proxy/releases/latest | grep dnscrypt-proxy-linux_x86_64- | grep browser_download_url | head -1 | cut -d \" -f 4 )
sudo service dnscrypt-proxy stop
sudo rm -rf /opt/dnscrypt-proxy
sudo tar xvzf dnscrypt-proxy-linux_x86_64-*.tar.gz
cd linux-x86_64
sudo mkdir /opt/dnscrypt-proxy
sudo mv * /opt/dnscrypt-proxy
sudo mv -f /opt/dnscrypt-proxy.toml /opt/dnscrypt-proxy
sudo chown root:root -R /opt/dnscrypt-proxy
sudo chmod 775 /opt/dnscrypt-proxy
sudo cp -f /etc/resolv.conf /etc/resolv.conf.backup
cd /opt
sudo rm -rf dnscrypt-proxy-linux_x86_*
sudo rm -rf linux-x86_64
sudo service dnscrypt-proxy start
sudo service dnscrypt-proxy status
workdir="$(mktemp -d)"
curl -sL $(curl -sL ${LATEST_URL} |
grep dnscrypt-proxy-linux_x86_64- | grep browser_download_url | head -1 | cut -d \" -f 4) |
tar xz -C "$workdir" -f - linux-x86_64/dnscrypt-proxy &&
[ -x linux-x86_64/dnscrypt-proxy ] &&
mv -f "${INSTALL_DIR}/dnscrypt-proxy" "${INSTALL_DIR}/dnscrypt-proxy.old" || : &&
mv -f "${workdir}/linux-x86_64/dnscrypt-proxy" "${INSTALL_DIR}/" &&
cd "$INSTALL_DIR" && rm -fr "$workdir" &&
./dnscrypt-proxy -check && ./dnscrypt-proxy -service install 2>/dev/null || : &&
./dnscrypt-proxy -service restart || ./dnscrypt-proxy -service start
}
lversion=$(
cd /opt/dnscrypt-proxy
./dnscrypt-proxy -version
)
rmersion=$(
curl -s https://api.github.com/repos/jedisct1/dnscrypt-proxy/releases/latest | grep "tag_name" | head -1 | cut -d \" -f 4
)
lversion=$("${INSTALL_DIR}/dnscrypt-proxy" -version)
rmersion=$(curl -sL ${LATEST_URL} | grep "tag_name" | head -1 | cut -d \" -f 4)
[ -z "$lversion" || -z "$rmersion" ] && exit 1
echo locally installed
echo $lversion
echo "$lversion"
echo remote git version
echo $rmersion
echo "$rmersion"
if [[ "$rmersion" > "$lversion" ]]
then
if [ "$rmersion" != "$lversion" ]; then
echo Updating && Update
else
echo No Update Needed
fi
```
fi