This supports the volume-based structure, and uses some nice optimizations to ensure that only the desired toolchain and cargo items are copied over. It also uses drops to ensure scoped deletion of resources, to avoid complex logic ensuring their cleanup. It also supports persistent data volumes, through `cross-util`. In order to setup a persistent data volume, use: ```bash cross-util volumes create ``` This will create a persistent data volume specific for your current toolchain, and will be shared by all targets. This volume is specific for the toolchain version and channel, so a new volume will be created for each toolchain. Make sure you provide your `DOCKER_HOST` or correct engine type to ensure these are being made on the remote host. Then, run your command as before: ```bash CROSS_REMOTE=1 cross build --target arm-unknown-linux-gnueabihf ``` Finally, you can clean up the generated volume using: ```bash cross-util volumes remove ``` A few other utilities are present in `cross-util`: - `volumes list`: list all volumes created by cross. - `volumes remove`: remove all volumes created by cross. - `volumes prune`: prune all volumes unassociated with a container. - `containers list`: list all active containers created by cross. - `containers remove`: remove all active containers created by cross. - `clean`: clean all temporary data (images, containers, volumes, temp data) created by cross. The initial implementation was done by Marc Schreiber, schrieveslaach. A few more environment variables exist to fine-tune performance, as well as handle private dependencies. - `CROSS_REMOTE_COPY_REGISTRY`: copy the cargo registry - `CROSS_REMOTE_COPY_CACHE`: copy cache directories, including the target directory. Both of these generally lead to substantial performance penalties, but can enable the use of private SSH dependencies. In either case, the use of persistent data volumes is highly recommended. Fixes cross-rs#248. Fixes cross-rs#273. Closes cross-rs#449.

Commits

Commits on Jun 22, 2022

Support temporary data directories and files.

Add comprehensive support for remote docker.

Add support for cargo clean on remote hosts.

Add file fingerprint to copy/remove only required files.

Add support for `cargo clean` on remote hosts.