stdin-killer: do not setpgrp if already leader #415

	name: dependencies

	on:
	pull_request:
	branches:
	- main
	workflow_dispatch:

	jobs:
	upgrade:
	name: Test dependencies
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	include:
	- os: ubuntu-20.04
	python: 3.7
	- os: ubuntu-20.04
	python: 3.8
	- os: ubuntu-20.04
	python: 3.9
	- os: ubuntu-22.04
	python: "3.10"
	steps:
	- name: Set up Python
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python }}
	- name: Checkout default branch
	uses: actions/checkout@v3
	with:
	ref: main
	path: teuthology
	- name: virtualenv
	run: \|
	pip install --user virtualenv
	virtualenv ./virtualenv
	cd ./virtualenv/lib/python*
	touch no-global-site-packages.txt
	working-directory: ./teuthology
	- name: Initial bootstrap
	run: ./bootstrap install
	working-directory: ./teuthology
	- name: Move initial repository
	run: mv teuthology teuthology.orig
	- name: Checkout desired ref
	uses: actions/checkout@v3
	with:
	path: teuthology
	- name: Move virtualenv to new checkout
	run: mv ./teuthology.orig/virtualenv ./teuthology/
	- name: Re-run bootstrap
	run: ./bootstrap install
	working-directory: ./teuthology

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