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ci: Check and confirm Vim feature flags exist before testing

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Vim tests for features such as python3 relies on checking the feature
flag exists by doing `has('python3')`. However, if the feature itself is
broken and the flag returns 0, the relevant tests will simply silently
get ignored and CI will passed erroneously. As a preventive measure, as
basic checks to make sure certain feature flags are correct as a basic
smoke test.

Currently only checking two types of feature flags:

1. Features that depend on system packages being installed properly
   (e.g. sodium) and could be erroneously dropped if the CI environment
   changed or a bug exists in the configure script.
2. Scripting languages. When in dynamic mode, these feature flags (e.g.
   "ruby", "python3") will return 0 when the lib cannot be found or the
   code has an initialization bug. This happened in #16964 where CI
   still passed despite Python 3 being broken.

closes: #16998

Signed-off-by: Yee Cheng Chin <ychin.git@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Yee Cheng Chin
2025-03-30 14:48:29 +02:00
committed by Christian Brabandt
parent 1054b18291
commit bb8e5ddb97
5 changed files with 39 additions and 4 deletions
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6
ci/if_ver-2.vim
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@ -1,6 +1,8 @@
" Print py3 interface versions for Ubuntu. Part 2.
" Print py3 interface versions. Part 2.
" This is done separately from part 1 because Vim cannot concurrently load
" Python 2 and 3 together.
if 1
if 1 " This prevents it from being run in tiny versions
execute 'source' expand('<sfile>:h') .. '/if_ver-cmd.vim'
echo 'Python 3:'