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bitbake: Add a cache around PACKAGES_DYNAMIC regexps to help performance a bit 

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Richard Purdie 2009-07-23 15:59:17 +01:00
parent a6ca63d77a
commit d02379d2df
2 changed files with 26 additions and 12 deletions
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19
bitbake-dev/lib/bb/providers.py
View File

@ -280,6 +280,8 @@ def filterProvidersRunTime(providers, item, cfgData, dataCache):
return eligible, numberPreferred
regexp_cache = {}
def getRuntimeProviders(dataCache, rdepend):
"""
Return any providers of runtime dependency
@ -297,12 +299,17 @@ def getRuntimeProviders(dataCache, rdepend):
# Only search dynamic packages if we can't find anything in other variables
for pattern in dataCache.packages_dynamic:
pattern = pattern.replace('+', "\+")
try:
regexp = re.compile(pattern)
except:
bb.msg.error(bb.msg.domain.Provider, "Error parsing re expression: %s" % pattern)
raise
if pattern in regexp_cache:
regexp = regexp_cache[pattern]
else:
pattern = pattern.replace('+', "\+")
try:
regexp = re.compile(pattern)
except:
bb.msg.error(bb.msg.domain.Provider, "Error parsing re expression: %s" % pattern)
raise
regexp_cache[pattern] = regexp
if regexp.match(rdepend):
rproviders += dataCache.packages_dynamic[pattern]

19
bitbake/lib/bb/providers.py
View File

@ -280,6 +280,8 @@ def filterProvidersRunTime(providers, item, cfgData, dataCache):
return eligible, numberPreferred
regexp_cache = {}
def getRuntimeProviders(dataCache, rdepend):
"""
Return any providers of runtime dependency
@ -297,12 +299,17 @@ def getRuntimeProviders(dataCache, rdepend):
# Only search dynamic packages if we can't find anything in other variables
for pattern in dataCache.packages_dynamic:
pattern = pattern.replace('+', "\+")
try:
regexp = re.compile(pattern)
except:
bb.msg.error(bb.msg.domain.Provider, "Error parsing re expression: %s" % pattern)
raise
if pattern in regexp_cache:
regexp = regexp_cache[pattern]
else:
pattern = pattern.replace('+', "\+")
try:
regexp = re.compile(pattern)
except:
bb.msg.error(bb.msg.domain.Provider, "Error parsing re expression: %s" % pattern)
raise
regexp_cache[pattern] = regexp
if regexp.match(rdepend):
rproviders += dataCache.packages_dynamic[pattern]