Add gradient benchmark CI #1

	name: Run gradient benchmarks

	on:
	pull_request:
	types: [labeled, opened, synchronize, reopened]

	# Only trigger the benchmark job when you add `run benchmark` label to the PR
	jobs:
	Benchmark:
	runs-on: ubuntu-latest
	if: contains(github.event.pull_request.labels.*.name, 'run gradient benchmark')
	steps:
	- uses: actions/checkout@v2
	- uses: julia-actions/setup-julia@latest
	with:
	version: 1
	- uses: julia-actions/julia-buildpkg@latest
	- name: Install dependencies
	run: julia -e 'using Pkg; pkg"add PkgBenchmark [email protected]"'
	- name: Run benchmarks
	run: julia -e 'using BenchmarkCI; BenchmarkCI.judge(;script = joinpath(pkgdir, "benchmark", "benchmarks_grad.jl"))'
	- name: Post results
	run: julia -e 'using BenchmarkCI; BenchmarkCI.postjudge()'
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	- name: Push results
	run: julia -e "using BenchmarkCI; BenchmarkCI.pushresult(;branch = "benchmark-gradients-results")"
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	SSH_KEY: ${{ secrets.DOCUMENTER_KEY }}

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