Python script not letting go of files

[Mike Dewhirst]

Stefan

Thank you. I should have said this has been working fine for years and 
years until Ubuntu 2022.04 on a new droplet running Apache/2.4.52

I will refactor it one day - especially if the script is implicated. But 
I think I have to learn how to use lsof first!

Cheers

Mike

On 30/11/2022 1:44 am, Stefan Ram wrote:
> "Weatherby,Gerard"<gweatherby at uchc.edu>  writes:
>> Do any of you Python folks see any blunders in the above code along the
>> lines of not letting go of py files or static assets?
>    No, sorry. But I had to refactor it.
>
>    *Warning* The following code is not intended to be executed,
>    it is just intended to be read by humans. It was not tested
>    and, therefore, it probably contains errors. If executed, it
>    may cause destruction such as deletions of files etc. Stefan
>    Ram (I) does not claim any copyright for his modifications.
>
> def attempt( task, command ):
>      if trycmd( command, log ):
>          print( f'task "{task}" failed.'  )
>          return False # failure
>      else:
>          return True # success
>
> def main():
>      with open( fetchlog, 'a' )as log_:
>          global log
>          log = log_
>          remove_site()
>          del log
>
> def remove_site():
>      log.write( f"\n\nFetching {tag}" )
>      if attempt( "remove site", f"sudo rm -Rf {site_root}", log ):
>          get_source()
>
> def get_source():
>      if attempt( "get source", f"sudo svn export --force --username {usr} --password {pw} {svn_repo} {site_root}" ):
>          install_requirements()
>
> def install_requirements():
>      if attempt( "install requirements", f"sudo -H pip install -r {reqfile}" ):
>          repo_migrations()
>
> def repo_migrations():
>      if attempt( "run any migrations shipped from the repo", f"sudo python3 {site_root}/manage.py migrate --noinput --settings={settings}" ):
>          makemigrations()
>
> def makemigrations():
>      # shouldn't find anything
>      if attempt( "makemigrations", f"sudo python3 {site_root}/manage.py makemigrations --noinput --settings={settings}" ):
>          migrate()
>
> def migrate():
>      # should already be done
>      if attempt( "migrate 2", f"sudo python3 {site_root}/manage.py migrate --noinput --settings={settings}" ):
>          remove_static()
>
> def remove_static():
>      if attempt( "remove all static files from their Apache dir", f"sudo rm -Rf {static_root}/*" ):
>          copy_static()
>
> def copy_static():
>      if attempt( "copy all static files to the Apache location", f"sudo python3 {site_root}/manage.py collectstatic --noinput --settings={settings}" ):
>          set_permissions()
>
> def set_permissions():
>      if attempt( "set all permissions", f"sudo {scripts}/perms_{host}.sh" ):
>          service_restart()
>
> def service_restart():
>      if attempt( "restart of Apache service", f"sudo service apache2 restart" ):
>          log_success()
>
> def log_success():
>      log.write( f"\nFinish {tag}\n\n" )
>
> # main()
> # sys.exit()
>
>


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