build-release

#!/bin/bash
#
# Usage: ./build-release <PROJECT>
#
# Called by CI to verify the source tree is ready for release, and to build
# release binaries. We use 'cross' where necessary for cross-platform builds.
#
# We keep all this logic in a separate script so we don't need to duplicate it
# in every CI file.

set -euo pipefail

# Command-line arguments.
PKG_NAME="$1"
BIN_NAME="$PKG_NAME"
TARGET="$2"
HOST="$3"
CARGO_COMMAND="$4"

# This is either a tag, or possibly something like refs/heads/feature-branch-1.
# The important thing is that we remove all slashes.
VERSION="$RELEASE_VERSION"

# Install 'cargo deny'.
echo "Installing cargo-deny"
cargo_deny_version=0.12.1
cargo_deny_basename=cargo-deny-$cargo_deny_version-$HOST
curl -fLO https://github.com/EmbarkStudios/cargo-deny/releases/download/$cargo_deny_version/$cargo_deny_basename.tar.gz
tar xf $cargo_deny_basename.tar.gz
mv $cargo_deny_basename/cargo-deny /usr/local/bin/
rm -rf $cargo_deny_basename $cargo_deny_basename.tar.gz

# Perform standard checks and tests.
echo "Verifying code is ready for release"
cargo deny check
cargo fmt -- --check
cargo clippy -- -D warnings
cargo test --package "$PKG_NAME"

# Install cross if needed.
if [ "$CARGO_COMMAND" = "cross" ]; then
    echo "Installing cross for cross-compilation"
    cross_version=v0.2.1
    cross_basename=cross-$cross_version-$HOST
    curl -fLO https://github.com/rust-embedded/cross/releases/download/$cross_version/$cross_basename.tar.gz
    tar xf $cross_basename.tar.gz
    mv cross /usr/local/bin/
    rm -rf $cross_basename.tar.gz
fi

# Build our binaries.
echo "Building binaries using $CARGO_COMMAND"
$CARGO_COMMAND build --package "$PKG_NAME" --release --target "$TARGET"

# Figure out whether binaries have a file extension.
case "$TARGET" in
    *windows*) bin_ext=.exe ;;
    *) bin_ext= ;;
esac

# Package binaries.
zip -j "$PKG_NAME"_"$VERSION"_"$TARGET".zip target/"$TARGET"/release/"$BIN_NAME"$bin_ext