Draft: PoC: Add Gitlab::GlobSet for faster bulk glob matching
What does this MR do and why?
PoC: Add Gitlab::GlobSet for faster bulk glob matching
This is a PoC implementation of glob translation to RE2 regular expressions, that could help speed up CI pipeline creation for complex pipelines.
The benefit would most pronounced on pipelines for large changes, in
projects with many complex rules:changes patterns, where most
rules:changes patterns don't match any changed file.
Not much improvement is expected when the number of changes is small or
if most rules:changes are simple.
See #461460 (closed)
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