[actions] ideas

[dimitre]

Some ideas for github actions.

• some msys2 changes - [test] - msys2 improvements #7976
• use wget2 in download scripts - actions were updated to install wget2 via apt (cached) so it is ready to go download_libs downloader using wget2 #7907
• actions can be tested as a great matrix of OS and parameters

Organizing terminal output

I've noticed some github actions use a special tag to collapse actions output so we can expand clicking on an arrow like this:
this tags are

##[group] arrow title goes here
##[endgroup]

• Github actions scripts with group / endgroup #7947
  we can use this in our build and install scripts, or even inside makefiles

Investigating slow steps

I'm sharing one quick script made in python to analyse logs and discover the most slow steps in actions
in this case it is set to only show entries that takes more than 3 seconds to execute

#!/usr/bin/env python3

from datetime import datetime
lasttime = 0
items = []
with open("job-logs3.txt") as file:
    for item in file:
        item = item.replace('\ufeff', '')
        ts = item[:19].replace('T', ' ')
        line = item[29:].strip()

        d = datetime.strptime(ts, '%Y-%m-%d %H:%M:%S')
        if lasttime != 0:
            delta = d - lasttime
            obj = (d, line, delta)
            items.append(obj)
        lasttime = d

for l in items:
    if (l[2].total_seconds() > 3):
        print(l[2], l[0], l[1])

[dimitre]

closed by #7947