From b1e4cff75df54ab6d49c3b1a67e4fef806de571d Mon Sep 17 00:00:00 2001 From: Ross Burton Date: Wed, 26 Jan 2022 15:25:38 +0000 Subject: [PATCH] scripts/machine-summary: improve layer_path As this can get called lots but the data doesn't change, cache the responses. Also return a pathlib.Path, as this is 2022. Signed-off-by: Ross Burton Signed-off-by: Jon Mason --- scripts/machine-summary.py | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/scripts/machine-summary.py b/scripts/machine-summary.py index 4888a007..c07c2d15 100755 --- a/scripts/machine-summary.py +++ b/scripts/machine-summary.py @@ -30,16 +30,23 @@ def safe_patches(patches): return False return True -def layer_path(layername, d): +def layer_path(layername: str, d) -> pathlib.Path: """ Return the path to the specified layer, or None if the layer isn't present. """ - import re + if not hasattr(layer_path, "cache"): + # Don't use functools.lru_cache as we don't want d changing to invalidate the cache + layer_path.cache = {} + + if layername in layer_path.cache: + return layer_path.cache[layername] + bbpath = d.getVar("BBPATH").split(":") pattern = d.getVar('BBFILE_PATTERN_' + layername) for path in reversed(sorted(bbpath)): if re.match(pattern, path + "/"): - return path + layer_path.cache[layername] = pathlib.Path(path) + return layer_path.cache[layername] return None def extract_patch_info(src_uri, d):