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Fix code coverage for apps 

When building apps with EMMA_INSTRUMENT=true, we must ensure that
jacoco is at least on the classpath (or even embedded for unbundled
branches) and that proguard will ignore jacoco classes. Otherwise
the Jack compilation would fail.

For unbundled build, we include the proguard configuration file
build/core/proguard.jacoco.flags to ignore jacoco classes.

For full build, we ensure jacoco is on the classpath during the
jack compilation.

Bug: 27607712

(cherry picked from commit d9641e01f3)

Change-Id: Ib46c91d03721f2418b15c17546d4f322f2f90a28
This commit is contained in:
Sebastien Hertz 2016-03-31 16:48:26 +02:00
parent 5d4d1d8ebb
commit 2319e56366
1 changed files with 13 additions and 0 deletions
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13
core/package_internal.mk
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@ -191,8 +191,21 @@ LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
else # ! EMMA_INSTRUMENT_STATIC
ifdef LOCAL_SDK_VERSION
ifdef TARGET_BUILD_APPS
# In unbundled build, merge the coverage library into the apk.
# Jack supports coverage with Jacoco
LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
# Exclude jacoco classes from proguard
LOCAL_PROGUARD_FLAGS += -include $(BUILD_SYSTEM)/proguard.jacoco.flags
LOCAL_JACK_PROGUARD_FLAGS += -include $(BUILD_SYSTEM)/proguard.jacoco.flags
else # ! TARGET_BUILD_APPS
# If build against the SDK in full build, core.jar is not used
# so coverage classes are not present.
# Jack needs jacoco on the classpath but we do not want it to be in
# the final apk. While it is a static library, we add it to the
# LOCAL_JAVA_LIBRARIES which are only present on the classpath.
# Note: we have nothing to do for proguard since jacoco will be
# on the classpath only, thus not modified during the compilation.
LOCAL_JAVA_LIBRARIES += jacocoagent
endif # TARGET_BUILD_APPS
endif # LOCAL_SDK_VERSION
endif # ! EMMA_INSTRUMENT_STATIC