Add github run number to a file in github repo - github-actions

Question

I am trying to add the github run number to a file in the github repository. The file looks like the following:
import json
from importlib import reload
import hashlib
from logging import raiseExceptions
import os
import importlib
qwe = importlib.import_module("asd-64")
The 64 signifies the github run number. I have tried doing the following:
qwe = importlib.import_module("asd-${{ github.run_number }}")
This doesn't work and prints the string ${{ github.run_number }}. Is there a way to achieve this?

Answer 1

I've done it using a python script and placeholders. (It might not be the best solution, but at least it works!)
The file to update would look like this:
test.py
import json
from importlib import reload
import hashlib
from logging import raiseExceptions
import os
import importlib
#placeholder1
The script to update it would look like this:
update_file.py
import os
import re
print("START")
WORKSPACE = os.getenv("WORKSPACE")
GITHUB_RUN_NUMBER = os.getenv("GITHUB_RUN_NUMBER")
FILE = f"{WORKSPACE}/test.py"
with open(FILE, "r") as file:
content = file.read()
importlib = f'qwe = importlib.import_module("asd-{GITHUB_RUN_NUMBER}")'
content = re.sub(r"#placeholder1", importlib, content)
with open(FILE, "w") as file:
file.write(content)
print("END")
And the workflow file that would perform the operation would look like this:
workflow.yml
name: ...
on:
workflow_dispatch:
jobs:
job1:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout#v2.3.4
- uses: actions/setup-python#v4
with:
python-version: 3.8
- name: Execute Python script to update test.py file
run: python .github/scripts/update_file.py
env:
WORKSPACE: ${{ github.workspace }}
GITHUB_RUN_NUMBER: ${{ github.run_number }}
- run: cat test.py
Here is the related and successful workflow run.
(workflow file, update_file.py file, test.py file)