Use regex to extract pinned commits from moonraker.conf and reset repo's to the correct commit hashes during build in respective modules.

[miklschmidt]

The following somewhat janky regex should work

\[update_manager\s(?<module>\w+)]((?!\[)|(?!\n\n)\X)+pinned_commit:\s(?<commit>[[:xdigit:]]+)

[CrashTestCharlie]

What's the context for this regex?

Specifically,

1. What environment does it run it?
2. Does whatever is doing the calling know which repo it's trying to rebuild? (I would assume so, but need to check.)
3. Could the caller call out to an external script with the repo name and path to the moonraker.conf file?

If 3, then a python script that reads the conf file and properly parses it could be a better solution.

Sample code would look something like this:

#! /usr/bin/env python3

import re
import configparser
from optparse import OptionParser

parser = OptionParser()
parser.add_option("-r", "--repo", dest="repo")

def extract_commit(repo, file_name):
    section_name = "update_manager" + " " + repo
    config = configparser.ConfigParser()
    config.read(file_name)

    if section_name not in config.sections():
        return None

    if "pinned_commit" not in config[section_name]:
        return None

    return config[section_name]["pinned_commit"]

if __name__ == "__main__":
    (opts, args) = parser.parse_args()
    pin = extract_commit(opts.repo, args[0])
    if pin is None:
        exit(1)

    print(pin)

Result:

$ /tmp/regex.py -r KlipperScreen moonraker.conf
71eef9ee1f23aa4fd6b68169cfe5dd7908e478b2

or

$ /tmp/regex.py -r foo moonraker.conf
$ echo $?
1