tree 30ab7261519d7ffeebd222d7f34d8a25b76cf032
parent d9f1f984d46bc1128b304066fb40bc73cfc4e6f3
author Patrick Hiesel <hiesel@google.com> 1614271132 +0100
committer Patrick Hiesel <hiesel@google.com> 1614326711 +0100

ProjectLevelConfig: Cache parsed config and avoid reparsing

ProjectLevelConfig contained multiple inefficiencies:
1) In CachedProjectConfig we only cached a String that we parsed
   dynamically when asked for a project level config.
2) When resolving a ProjectLevelConfig with inheritance, we yet
   again made mutable copies by calling Config#toText/fromText.

This made it so that for a ProjectLevelConfig requested at level N
in the project hierarchy, we called Config#{to,from}Text 4*N times.

code-owners calls requests a ProjectLevelConfig quite frequently
while processing. This is something we can look at serparately,
but it exemplified the problem.

Change-Id: I58e3fed45cd2685cce47f2acc94f70de93b1845a