Improve robustness of the spec.md section extraction

[dcermak]

cc @frostyx

[FrostyX]

@dcermak this is related to #148 or something else? Just to know what I should test.

[dcermak]

@dcermak this is related to #148 or something else? Just to know what I should test.

Yes, #148 and #30

[FrostyX]

Possibly I am testing this wrong but I think #148 still happens. But this time with different functions and line numbers:

Traceback (most recent call last):
  File "/usr/local/bin/rpm_lsp_server", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/usr/local/lib/python3.12/site-packages/rpm_spec_language_server/main.py", line 46, in main
    server = create_rpm_lang_server()
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/rpm_spec_language_server/server.py", line 126, in create_rpm_lang_server
    rpm_spec_server = RpmSpecLanguageServer()
                      ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/rpm_spec_language_server/server.py", line 77, in __init__
    retrieve_spec_md() or ""
    ^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/rpm_spec_language_server/extract_docs.py", line 198, in retrieve_spec_md
    with open(path) as spec_md_f:
         ^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/usr/share/doc/rpm/spec.md'

[dcermak]

Possibly I am testing this wrong but I think https://github.com/dcermak/rpm-spec-language-server/issues/148 still happens.

My bad! I've added a workaround for that and a regression test. It shouldn't happen now anymore.

[FrostyX]

Thank you for the update, I can confirm that it fixes #148 now.

[dcermak]

Thank you for the update, I can confirm that it fixes https://github.com/dcermak/rpm-spec-language-server/issues/148 now.

Awesome, thank you!