* When --features is specified,
pass --no-default-features to cargo.
* When a dependent Rust package is imported to AOSP,
if not all "default" features are needed, run
cargo2android.py with empty or a list of specific features.
Test: cargo2android.py --run # use default features
Test: cargo2android.py --run --features='' # no default
Test: cargo2android.py --run --features='default,std'
Change-Id: I854f1ecb7d7466490ff34e229ec14a07c1273c6d
* Usage note and help for command flags in the script.
* Run cargo -v multiple times and collect output in cargo.out.
* Use target.tmp as temporary working directory.
* Generate multiple Android.bp files into subdirectories.
* Simplified package names, without version number.
* Merged Android.bp modules.
* Use --device flag to generate both host and device build targets
in a combined module.
* Use --tests flag to generate rust_test modules, with auto_gen_config,
and multiple unit tests merged in one module.
* Generate cc_library_static modules for rust packages that call
'cc' and 'ar' to build static C/C++ libraries.
* Use the --vv flag to call cargo with -vv.
* Limitations:
* Cargo.toml and its build scripts might need fix for Android first.
* Depending on user given cargo parameters.
* TODOs:
* Handle multiple crate types in one rustc command line.
* Smart merge of host and device rust_test modules,
to handle device tests that depend on dynamic libraries.
* Handle special Rust packages that use only build scripts
and C/C++ compilers to generate included files.
Bug: 142209566
Test: In rust project directories: cargo2android.py --run
Change-Id: Id54652b1e0a6e5fc16619cd05f5b057eee79d610