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* [PATCH 1/3] scripts/machine-summary: improve layer_path
@ 2022-01-26 19:12 Ross Burton
  2022-01-26 19:12 ` [PATCH 2/3] scripts/machine-summary: link patches to cgit Ross Burton
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Ross Burton @ 2022-01-26 19:12 UTC (permalink / raw)
  To: meta-arm

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 <ross.burton@arm.com>
---
 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):
-- 
2.25.1



^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2022-01-27 14:53 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-26 19:12 [PATCH 1/3] scripts/machine-summary: improve layer_path Ross Burton
2022-01-26 19:12 ` [PATCH 2/3] scripts/machine-summary: link patches to cgit Ross Burton
2022-01-26 19:12 ` [PATCH 3/3] CI: enable memory-resident bitbake Ross Burton
2022-01-27 14:52 ` [PATCH 1/3] scripts/machine-summary: improve layer_path Jon Mason

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