For modules that provide API surfaces in addition to the standard
current, test and system it is useful to be able to specify the
directory containing the api's .txt files to make it easy to create
multiple API surfaces from within the same Android.bp file. e.g. This
is useful for conscrypt, icu and libcore to manage their intra core
and core platform APIs.
Bug: 145998881
Test: m checkbuild
Change-Id: I753631d9b6993fbf30019fef5c052a9429e519de
If the library does not provide system and test APIs then do not
generate/require corresponding .txt files.
Bug: 145998881
Test: m checkbuild
Change-Id: I21cfdb0b63fd575e8c8c63ea2b436e0c4aa8f3fc
Some non-interpretable error messages has been shown in case of missing
current api files. Instead of that messy errors, This clearly tells
users what is the problem and how to fix it.
Bug: 126259114
Test: 1) try to build a sysprop_library and a java_sdk_library without
creating txt files under api/, and see it fails.
Test: 2) Copy and paste the emitted command, and try to build again.
Change-Id: I986781cc710475647c2b996b0f1c51a6f50c0ba2
