# Multi-Target Static Rust Project from Git Repo

Using this [Dockerfile](../docker/multi-target-static-git) one can build a statically
linked Rust project from a Git repo (provided it has minimal external dependencies)
in an Ubuntu (latest) container targeting both ARMv7 and i686.

### Container Build

`$ podman build -t crossbuild-multi -f multi-target-static-git`

### Build Example

This assumes `PROJECT_DIR` is set to the path to which this repo was cloned.

The project built in this example is my [`connchk` crate](https://git.staart.one/ajmartinez/connchk).

```bash
$ mkdir ~/build_dir
$ cp ${PROJECT_DIR}/examples/multi-target-static-git.sh ~/build_dir/
$ podman run --rm -it -e GIT_REPO="https://git.staart.one/ajmartinez/connchk.git" \
	-e BIN_NAME="connchk" \
	-v "${HOME}/build_dir:/opt/build:z \
	crossbuild-multi:latest \
	/opt/build/multi-target-static-git.sh

# Build output redacted

$ file build_dir/*_connchk
build_dir/armv7-unknown-linux-gnueabihf_connchk: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), statically linked, BuildID[sha1]=f4c5af4314c56d6d2a6d4a1743ca3e3ccd0f955d, for GNU/Linux 3.2.0, stripped
build_dir/i686-unknown-linux-gnu_connchk:        ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, BuildID[sha1]=e9937cbc4f944b66aedd393ef270be9ab85002da, for GNU/Linux 3.2.0, stripped
```