Add Forgejo to dietpi-software

[jcnils]

It works similar to Gitea. The docs can be reused.
#6133

1 - I need to confirm if jq comes with dietpi. It was on mine, but my installation is ancient, and I do not remember.

I used it to get the release url from the codeberg repo, as the returning json is different from github used by gitea. Line [10662]

2 - I wonder if there are any tags for ssh server dependencies like 'browser' show in
https://github.com/MichaIng/DietPi/wiki/How-to-add-a-new-software-title#asoftware_depssoftware_id

I noticed that there is also Dropbear besides OpenSSH.

[MichaIng]

Many thanks. Linking the request discussion: #6133

I need to confirm if jq comes with dietpi

It does not.

2 - I wonder if there are any tags for ssh server dependencies like 'browser'

Nope, but I think it is not required. While common it is (should be) optional, an SSH server is pre-installed on DietPi, and in the dietpi-software, you have a prominent menu entry for it.

[MichaIng]

As an alternative to jg, mawk could loop through all fields, until it finds one which matches the URL pattern. I can write that, if needed.

[jcnils]

I am not familiar with awk, but I found a manual, I am looking into it. https://www.gnu.org/software/gawk/manual/gawk.html

I could not use the gitea awk command because the json from github is readable https://api.github.com/repos/go-gitea/gitea/releases/latest, while the codeberg/forgejo api returns a single string. https://codeberg.org/api/v1/repos/forgejo/forgejo/releases/latest

https://codeberg.org/api/swagger#/repository/repoGetLatestRelease

I can find the fields I need with
curl -sSfL 'https://codeberg.org/api/v1/repos/forgejo/forgejo/releases/latest' | mawk -F: -v RS=, '$1~/"browser_download_url"/'
but there are some tweaks to do.

[jcnils]

Got it

curl -sSfL 'https://codeberg.org/api/v1/repos/forgejo/forgejo/releases/latest' | mawk -F:\" -v RS=, '/"browser_download_url":".*\/forgejo-[^\"\/]*-linux-arm64\.xz"/{gsub("\"|}| ]","",$2);print $2}'

I will update the file and test it, please let me know if I can improve the regex.

[jcnils]

It seems to be working now.

I also added a line to start Forgejo after the installation is done. systemctl status was showing it as inactive before.

[MichaIng]

With the "loop through fields" I actually meant something like this:

curl -sSfL 'https://codeberg.org/api/v1/repos/forgejo/forgejo/releases/latest' | mawk -F\" "{for(i=NF;i>0;i--) if(\$i~/^https:.*linux-$arch\.xz$/) {print \$i;exit}}"

But changing the record delimiter isn't a bad idea either. Running some tests, it seems to perform slightly faster. Can be simplified a little:

curl -sSfL 'https://codeberg.org/api/v1/repos/forgejo/forgejo/releases/latest' | mawk -v RS=, -F\" "/^\"browser_download_url\":\".*-linux-$arch\.xz\"/{print \$4;exit}"

Since every key: value pair must be separated by comma, no need to worry about additional ". And no need to separate fields by " as well as :, then removing all " to effectively use : as field separator only. Just use " only 😉.

[jcnils]

That is brilliant, it also solves the problem with the closing brackets.
It is also faster, I guess removing the gsub and adding the exit statement helps with that.

Thanks for the guidance.

I tested it here and updated the code.