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authorRichard Purdie <richard.purdie@linuxfoundation.org>2021-10-03 20:12:26 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2021-10-04 13:57:14 +0100
commit44dc97cd1223e4d2b635669627ec5f796838d42d (patch)
tree6cbe8f6048e34efaeda73d9593d6d0232f898615
parentbe32692c627a14509de5eb3834e7321c3c5faf25 (diff)
downloadopenembedded-core-contrib-44dc97cd1223e4d2b635669627ec5f796838d42d.tar.gz
reproducible_build: Work around caching issues
SOURCE_DATE_EPOCH can be expanded early in the parsing process before the class extensions are applied. This can mean the directory pointed to for the SDE can be incorrect until later in parsing. Cache the file name in the cached value and allow it to dynamically update. This isn't ideal but avoding expansion of the variable likely isn't possible and I'm not sure how else to handle this. This works around the issue until a better solution can be found. Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/classes/reproducible_build.bbclass11
1 files changed, 7 insertions, 4 deletions
diff --git a/meta/classes/reproducible_build.bbclass b/meta/classes/reproducible_build.bbclass
index 89f645b858..7571c116c8 100644
--- a/meta/classes/reproducible_build.bbclass
+++ b/meta/classes/reproducible_build.bbclass
@@ -115,11 +115,14 @@ EPOCHTASK = "do_deploy_source_date_epoch"
do_unpack[postfuncs] += "create_source_date_epoch_stamp"
def get_source_date_epoch_value(d):
- cached = d.getVar('__CACHED_SOURCE_DATE_EPOCH')
- if cached:
+ epochfile = d.getVar('SDE_FILE')
+ cached, efile = d.getVar('__CACHED_SOURCE_DATE_EPOCH') or (None, None)
+ if cached and efile == epochfile:
return cached
- epochfile = d.getVar('SDE_FILE')
+ if cached and epochfile != efile:
+ bb.debug(1, "Epoch file changed from %s to %s" % (efile, epochfile))
+
source_date_epoch = int(d.getVar('SOURCE_DATE_EPOCH_FALLBACK'))
try:
with open(epochfile, 'r') as f:
@@ -137,7 +140,7 @@ def get_source_date_epoch_value(d):
except FileNotFoundError:
bb.debug(1, "Cannot find %s. SOURCE_DATE_EPOCH will default to %d" % (epochfile, source_date_epoch))
- d.setVar('__CACHED_SOURCE_DATE_EPOCH', str(source_date_epoch))
+ d.setVar('__CACHED_SOURCE_DATE_EPOCH', (str(source_date_epoch), epochfile))
return str(source_date_epoch)
export SOURCE_DATE_EPOCH ?= "${@get_source_date_epoch_value(d)}"