gentoo auto-resync : 26:02:2023 - 21:58:19

4 files changed, 79 insertions, 2 deletions

diff --git a/dev-python/pycparser/Manifest b/dev-python/pycparser/Manifest
index 39170fc4734b..56480d94d2ff 100644
--- a/dev-python/pycparser/Manifest
+++ b/dev-python/pycparser/Manifest
@@ -1,4 +1,5 @@
+AUX pycparser-2.21-lextab-cache.patch 2535 BLAKE2B b0455189f1d64a18655cc43b969e260291acc0812c219490f8592bfc96d7f0653dc9b439acc8fef24e49e560ca3fca28e5b8734ec48fe8a6d9e981e239feafb6 SHA512 d24d3db2dae05e9bc4c76bae0dc1070c0905af239b6585d93da0d026e02ba609df28577c47f88ee33cb6c26c59abc5cdb73f806360cc964e5e834c96b55cf423
 DIST pycparser-2.21.tar.gz 170877 BLAKE2B ae6bf42dfc552bf1e3bfb5430cdb0c15b5e011ec53cbd03e0e2507c08a1a78690cefce2de134bd984caccc5dbde90661cb4c18df5c289217967213aac4d52404 SHA512 e61fbdde484d1cf74d4b27bdde40cf2da4b7028ca8ecd37c83d77473dab707d457321aecaf97da3b114c1d58a4eb200290b76f9c958044b57e5fed949895b5f0
-EBUILD pycparser-2.21-r1.ebuild 1779 BLAKE2B fbdd2c5116a1426ddd942c29f0ddb391dfbbcbaa7a8fcf1475cf9a386fd4c919efc2120665a2cef46ba5d54d6cd4c204826d58c467e44b5c1ae289182ee117f0 SHA512 f0313b385d0fc9566ca5aff66e9a626ebd714ae170228988d6ff3fa729830be5d3d27953b148de90dfda8af954ce535ae682866937c317ea9f230d75be138ad0
-EBUILD pycparser-2.21-r2.ebuild 1899 BLAKE2B 66b26e6aff00ef9cda0ca26714784e838d2fb7104cfb9d803cbeb3e0f7ab44e7af7c2bb65b9b0cb24a09521c82f4ec3103f54c0e710f9f08f38704fb4c244c84 SHA512 8030001ab674a3cb5c11b429f6294f94d6f4ac80037247c8e83815ea282f6b2f606de10308fdf94ee3eecda496191a63cc4141b5e3c8fe9da4d7a2acb65fb65b
+EBUILD pycparser-2.21-r1.ebuild 1889 BLAKE2B a98b9d564648fe208ec6d6f9ce25667147021659e849a3e88dfc2f4eac26ed357d6ad64dc7ea6acdf895e9c78af2ee67f36279de69aa65a34d72047724b7d324 SHA512 5db1073d092d5f60fe081f43df09e00cbbdb879f69738479f632438b70f3385e745b8cfc1f33a1c1d50b1ef6491ee46aaa6bfc4c44406f1f9c169a21d864e6ca
+EBUILD pycparser-2.21-r2.ebuild 2009 BLAKE2B 18ca2a0aaa4f9dcedb4e2554c577332603ba74bba866eee31dc71e88e546528dbb3dd0f34e9cb5972cd08fadeecb8508b17f472535182b5ef18a91ab40aa25eb SHA512 f8bcc629e903fd2a10e4443b56f325063a51e2b5019705a4f263329e7c7f35148052a0de1a51b1f11fa0d5932809a2b63dfb449d49edfee3486546098bf32bde
 MISC metadata.xml 406 BLAKE2B 61cb250ac460c4ea05f47bd8d208e44706bc80965ca1982e490d759d3a63652e5e13bf357532afb599ecea491f3c9a4cd315b97250b115bb7e8fa769b2ef03ff SHA512 b2d4ffde31f97a98e4a74bdd70751519d1339bbf3384e9e671760506fc2dac9d92bf6f7a743973002b4ae6da1cd2bb11abbfe63cbb330a1c32702b3eef24a62b
diff --git a/dev-python/pycparser/files/pycparser-2.21-lextab-cache.patch b/dev-python/pycparser/files/pycparser-2.21-lextab-cache.patch
new file mode 100644
index 000000000000..d24999e7273a
--- /dev/null
+++ b/dev-python/pycparser/files/pycparser-2.21-lextab-cache.patch
@@ -0,0 +1,66 @@
+From 35a279ecb9af41a6f95ddbc6a0f1beaa2472d165 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
+Date: Sun, 26 Feb 2023 01:04:34 +0100
+Subject: [PATCH] _build_tables: Invalidate cache before importing generated
+ modules (#494)
+
+Make sure to invalidate finder caches before trying to import generated
+modules.  This is necessary according to the Python documentation:
+https://docs.python.org/3/library/importlib.html#importlib.invalidate_caches
+
+This fixes a hard-to-reproduce bug that Python would be unable to find
+just-generated `lextab.py` if mtime of the current directory did not
+change from the moment the script was started.  This could
+e.g. be the case if one has second-precision timestamps and removes
+the generated file just before starting the build, e.g.:
+
+    $ rm pycparser/lextab.py; python -m build -nw
+
+It could also be reproduced easier by doing something like:
+
+    $ cd pycparser
+    $ touch .; python -B _build_tables.py
+    Traceback (most recent call last):
+      File "/var/tmp/pycparser/pycparser/_build_tables.py", line 38, in <module>
+        import lextab
+    ModuleNotFoundError: No module named 'lextab'
+
+This is because the first command (`rm` or `touch`) updates the mtime
+of the directory to the current time.  If the script is run fast enough,
+it manages to scan the directory and then write the new `lextab.py`
+within the same second.  As a result, mtime of the directory after
+writing the new file is the same as when the script was started, finder
+does not invalidate the cache and assumes that `lextab.py` does not
+exist since it did not exist when the directory was scanned earlier.
+
+This potentially fixes #493.
+
+It was originally reported on https://bugs.gentoo.org/701878.
+Thanks to Gary E. Miller for patience in reproducing the problem
+and proxy-debugging it for me, as well as testing the final patch before
+submission.
+---
+ pycparser/_build_tables.py | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/pycparser/_build_tables.py b/pycparser/_build_tables.py
+index 958381ad..4f371079 100644
+--- a/pycparser/_build_tables.py
++++ b/pycparser/_build_tables.py
+@@ -13,6 +13,7 @@
+ # Insert '.' and '..' as first entries to the search path for modules.
+ # Restricted environments like embeddable python do not include the
+ # current working directory on startup.
++import importlib
+ import sys
+ sys.path[0:0] = ['.', '..']
+ 
+@@ -32,6 +33,8 @@
+ 
+ # Load to compile into .pyc
+ #
++importlib.invalidate_caches()
++
+ import lextab
+ import yacctab
+ import c_ast
diff --git a/dev-python/pycparser/pycparser-2.21-r1.ebuild b/dev-python/pycparser/pycparser-2.21-r1.ebuild
index 1b0d8e6f6901..3848eaeedd3a 100644
--- a/dev-python/pycparser/pycparser-2.21-r1.ebuild
+++ b/dev-python/pycparser/pycparser-2.21-r1.ebuild
@@ -30,6 +30,11 @@ BDEPEND="
 distutils_enable_tests unittest
 
 python_prepare_all() {
+	local PATCHES=(
+		# https://github.com/eliben/pycparser/pull/494
+		"${FILESDIR}"/${P}-lextab-cache.patch
+	)
+
 	# remove the original files to guarantee their regen
 	rm pycparser/{c_ast,lextab,yacctab}.py || die
 
diff --git a/dev-python/pycparser/pycparser-2.21-r2.ebuild b/dev-python/pycparser/pycparser-2.21-r2.ebuild
index edebc42725b5..08416104b7d4 100644
--- a/dev-python/pycparser/pycparser-2.21-r2.ebuild
+++ b/dev-python/pycparser/pycparser-2.21-r2.ebuild
@@ -29,6 +29,11 @@ BDEPEND="
 distutils_enable_tests unittest
 
 python_prepare_all() {
+	local PATCHES=(
+		# https://github.com/eliben/pycparser/pull/494
+		"${FILESDIR}"/${P}-lextab-cache.patch
+	)
+
 	# remove the original files to guarantee their regen
 	rm pycparser/{c_ast,lextab,yacctab}.py || die