This directory contains patch files for rust-openssl for it to build successfully with --features=unstable_boringssl.

After running prepare-rust-openssl, the rust-openssl git repo is cloned to beto-rust/boringssl-build/rust-openssl/openssl, and the patches in this directory will be applied.

If you make further changes, or update the “base commit” in prepare-rust-openssl, you can regenerate the patch files by following these steps:

1. Run cargo run -- prepare-rust-openssl
2. cd boringssl-build/rust-openssl/ and make the necessary changes
3. Commit the changes
4. git format-patch BASE_COMMIT. (Note: BASE_COMMIT is set by prepare-rust-openssl)
5. The patch files will be generated in the current working directory. Move them here in nearby/scripts/openssl-patches.

Regenerate patches based on AOSP changes

In the “make the necessary changes” part in Step 2 above, follow these steps:

1. Download the patch files in https://googleplex-android.googlesource.com/platform/external/rust/crates/openssl/+/master/patches
2. cd into the openssl directory since the AOSP project starts at that root:

   $ cd openssl
   

3. Reset your branch to BASE_COMMIT to ensure the AOSP patches apply cleanly.

   $ git co BASE_COMMIT
   $ git co -b create-patch
   

4. Apply the patches from AOSP

   for i in /path/to/android/external/rust/crates/openssl/patches/*; do patch -p1 < $i; done
   

5. Remove unneeded files (like .orig). Commit the changes.
6. Patches locally in scripts/openssl-patches but not in AOSP are lost in this process. Reapply the appropriate ones at this point, using git apply or git am.
7. Continue with git format-patch described in step 4 in the previous section.