ci: add benchmark workflow #1

	name: Benchmarks

	on:
	pull_request:
	paths:
	- .github/workflows/benchmarks.yml
	- scripts/benchmark.py
	- bytecode/**
	- src/**

	jobs:
	benchmark:
	runs-on: ubuntu-latest

	steps:
	- name: Check out PR
	uses: actions/checkout@v4
	with:
	path: bytecode-dev

	- name: Check out base branch
	uses: actions/checkout@v4
	with:
	ref: ${{ github.event.pull_request.base.sha }}
	path: bytecode-base

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.13"

	- name: Install base version
	run: \|
	python -m venv .venv-base
	.venv-base/bin/pip install --upgrade pip
	.venv-base/bin/pip install -r bytecode-dev/scripts/requirements-bm.txt
	.venv-base/bin/pip install ./bytecode-base

	- name: Install dev version
	run: \|
	python -m venv .venv-dev
	.venv-dev/bin/pip install --upgrade pip
	.venv-dev/bin/pip install -r bytecode-dev/scripts/requirements-bm.txt
	.venv-dev/bin/pip install ./bytecode-dev

	- name: Run benchmark (base)
	run: \|
	.venv-base/bin/python bytecode-dev/scripts/benchmark.py \
	--version base \
	--output results-base.json

	- name: Run benchmark (dev)
	run: \|
	.venv-dev/bin/python bytecode-dev/scripts/benchmark.py \
	--version dev \
	--output results-dev.json

	- name: Render report
	run: \|
	.venv-dev/bin/python bytecode-dev/scripts/benchmark.py \
	--merge results-base.json results-dev.json \
	--format markdown \
	> comment.txt
	cat comment.txt

	- name: Post results on PR
	uses: marocchino/sticky-pull-request-comment@v2
	with:
	header: benchmarks
	path: comment.txt

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