Script to download the latest Asuswrt-Merlin development snapshots from Github

[Fitz Mutch]

I never found an easy way to automatically name the downloaded "master.tar.gz" file, so I wrote this script. It will download the latest development snapshot from Github and automatically give it an appropriate filename. Example:

380.65-beta3-cf1bb54.tar.gz


/jffs/scripts/dl-merlin.sh

#!/bin/sh
VERSION_CONF=$(/usr/sbin/curl -L -s https://raw.githubusercontent.com/RMerl/asuswrt-merlin/master/release/src-rt/version.conf)
eval $(/bin/echo $VERSION_CONF | /bin/sed 's# #\n#g' | grep SERIALNO)
eval $(/bin/echo $VERSION_CONF | /bin/sed 's# #\n#g' | grep EXTENDNO)

LATEST_COMMIT=$(/usr/sbin/curl -L -s https://github.com/RMerl/asuswrt-merlin | # download HTML using curl
        /usr/bin/tr -d '\n'           | # remove carriage returns
        /bin/sed 's#</#\n</#g'        | # tokenize by HTML tag
        /bin/grep 'Latest commit'     | # locate lines with "Latest commit"
        /bin/sed 's#  *# #g'          | # convert all multispaces to single space
        /bin/sed 's# $##g'            | # remove trailing space
        /bin/sed 's# #\n#g'           | # tokenize by space
        /usr/bin/tail -n1)              # get the last token

FILENAME="$SERIALNO-$EXTENDNO-$LATEST_COMMIT.tar.gz"
/bin/echo
/bin/echo "Downloading $FILENAME ..."
/bin/echo

[ -n "$FILENAME" ] && /usr/sbin/curl -L -S --retry 90 --retry-delay 5 -o "$FILENAME" https://github.com/RMerl/asuswrt-merlin/archive/master.tar.gz

If you need to download through a proxy, just add "--socks5-hostname 192.168.1.1:9050" to the curl commands.

 

[sfx2000]

would't it just be easier to do a cron task with a git pull?

 

[Fitz Mutch]

would't it just be easier to do a cron task with a git pull?

If all I'm doing is downloading the latest master, applying a patch and compiling, this method is very reliable. However, you're correct that the git pull is faster because it only downloads the deltas.

 

[sfx2000]

Seen Jenkins?

https://jenkins.io/

 

[RMerlin]

Recommended workflow is to keep two copies of the code. One which you keep updating with "git pull" as needed, and the other is a copy of that repo on which you patch/compile/etc...

cd asuswrt-merlin
git pull
cd ..
rsync -a --del asuswrt-merlin/ asuswrt-merlin-work
cd asuswrt-merlin-work

 

[sfx2000]

Merlin's approach is a good one...

The other approach would be to do a private fork, using his repo as an upstream source, and then just keep private changes - then one can fast forward/rewind as needed.

Lot's of ways to do this, and git is extremely powerful - and it's already set up.