Let's build-subwasm job become a common action

[fewensa]

this is used by Darwinia and Darwinia Parachain projects

darwinia/.github/workflows/release.yml

Lines 65 to 147 in 2c79022

	##
	# Generate subwasm info
	##
	build-subwasm:
	name: Generate subwasm info
	runs-on: ubuntu-latest
	container:
	image: ubuntu:16.04
	strategy:
	matrix:
	runtime: [crab, darwinia]
	steps:
	- uses: actions/checkout@v2
	- name: Install dependencies
	run: |
	apt update -y
	apt install --no-install-recommends -y \
	git curl ca-certificates \
	make gcc g++ clang-4.0
	- name: Install subwasm
	env:
	# Currently, Same with srtool version v0.9.18
	# https://github.com/paritytech/srtool/blob/v0.9.18/Dockerfile#L19
	SUBWASM_VERSION: 0.15.0
	run: |
	curl -L https://github.com/chevdor/subwasm/releases/download/v${SUBWASM_VERSION}/subwasm_linux_amd64_v${SUBWASM_VERSION}.deb \
	--output subwasm.deb && \
	dpkg -i subwasm.deb && \
	subwasm --version
	- name: Install Rust toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	target: wasm32-unknown-unknown
	- name: Cache target
	uses: actions/cache@v2
	with:
	path: target
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	- name: Build darwinia
	run: |
	set -xe
	RUNTIME_DIR=runtime/${{ matrix.runtime }}
	cargo build \
	--manifest-path runtime/${{ matrix.runtime }}/Cargo.toml \
	--features on-chain-release-build \
	--release \
	--target x86_64-unknown-linux-gnu
	- name: Collect shared
	run: |
	mkdir -p shared/${{ matrix.runtime }}-runtime
	mv target/x86_64-unknown-linux-gnu/release/wbuild/${{ matrix.runtime }}-runtime/*.wasm \
	shared/${{ matrix.runtime }}-runtime
	- name: Generate subwasm info for ${{ matrix.runtime }}-runtime
	run: |
	set -xe
	Z_WASM=shared/${{ matrix.runtime }}-runtime/*.compact.compressed.wasm
	echo '${{ matrix.runtime }}-runtime compressed compact subwasm info'
	subwasm -j info $Z_WASM | tee shared/${{ matrix.runtime }}-runtime/${{ matrix.runtime }}-runtime.compact.compressed.json
	- name: Upload shared
	uses: actions/upload-artifact@v2.2.4
	with:
	name: darwinia-artifact
	path: shared
	- name: Optimize cache
	run: .github/optimize-cache.sh || exit 0
	- uses: vishnudxb/cancel-workflow@v1.2
	if: failure()
	with:
	repo: darwinia-network/bridger
	workflow_id: ${{ github.run_id }}
	access_token: ${{ github.token }}