From patchwork Wed Sep 4 10:38:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13790404 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EC84FCA0ED3 for ; Wed, 4 Sep 2024 10:41:42 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1slnQv-0002JA-9p; Wed, 04 Sep 2024 06:40:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1slnQt-0002Co-Er for qemu-devel@nongnu.org; Wed, 04 Sep 2024 06:40:15 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1slnQr-0000Gw-RR for qemu-devel@nongnu.org; Wed, 04 Sep 2024 06:40:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1725446412; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UpU2+/M58mm5T33rWo0QnRPqyX8ullh5Ml7wF7nd7NI=; b=N9U9dYVbTYwuS6caND3bLwglSBMDz2JPO9Oex+2ACA3LSsnXLS7Et6JrB6RnjlohaO1Ddq b9rXWwlBOVzv5DWNa+NKHYplmnc4/TUYW3HMCkPHZw6Jg1rEWCQ1XYONp4NFlbjPZuwNnA p59iCt60nT/Y6gSLREoXlfKT88Vy0Es= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-601-CaEDuh2tMiqUQdM4w2gfog-1; Wed, 04 Sep 2024 06:40:11 -0400 X-MC-Unique: CaEDuh2tMiqUQdM4w2gfog-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id B20BD19560A5; Wed, 4 Sep 2024 10:40:10 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.194.48]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 3F66B195605A; Wed, 4 Sep 2024 10:40:08 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org Cc: Richard Henderson , Stefan Hajnoczi , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , =?utf-8?q?Phil?= =?utf-8?q?ippe_Mathieu-Daud=C3=A9?= Subject: [PULL 14/42] tests/functional: add a module for handling asset download & caching Date: Wed, 4 Sep 2024 12:38:49 +0200 Message-ID: <20240904103923.451847-15-thuth@redhat.com> In-Reply-To: <20240904103923.451847-1-thuth@redhat.com> References: <20240904103923.451847-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 11 X-Spam_score: 1.1 X-Spam_bar: + X-Spam_report: (1.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.142, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Daniel P. Berrangé The 'Asset' class is a simple module that declares a downloadable asset that can be cached locally. Downloads are stored in the user's home dir at ~/.cache/qemu/download, using a sha256 sum of the URL. [thuth: Drop sha1 support, use hash on file content for naming instead of URL, add the possibility to specify the cache dir via environment variable] Signed-off-by: Daniel P. Berrangé Reviewed-by: Philippe Mathieu-Daudé Tested-by: Philippe Mathieu-Daudé Message-ID: <20240830133841.142644-15-thuth@redhat.com> Signed-off-by: Thomas Huth --- tests/functional/qemu_test/__init__.py | 1 + tests/functional/qemu_test/asset.py | 97 ++++++++++++++++++++++++++ 2 files changed, 98 insertions(+) create mode 100644 tests/functional/qemu_test/asset.py diff --git a/tests/functional/qemu_test/__init__.py b/tests/functional/qemu_test/__init__.py index 2f1e0bc70d..db05c8f412 100644 --- a/tests/functional/qemu_test/__init__.py +++ b/tests/functional/qemu_test/__init__.py @@ -6,6 +6,7 @@ # later. See the COPYING file in the top-level directory. +from .asset import Asset from .config import BUILD_DIR from .cmd import has_cmd, has_cmds, run_cmd, is_readable_executable_file, \ interrupt_interactive_console_until_pattern, wait_for_console_pattern, \ diff --git a/tests/functional/qemu_test/asset.py b/tests/functional/qemu_test/asset.py new file mode 100644 index 0000000000..c0e675d847 --- /dev/null +++ b/tests/functional/qemu_test/asset.py @@ -0,0 +1,97 @@ +# Test utilities for fetching & caching assets +# +# Copyright 2024 Red Hat, Inc. +# +# This work is licensed under the terms of the GNU GPL, version 2 or +# later. See the COPYING file in the top-level directory. + +import hashlib +import logging +import os +import subprocess +import urllib.request +from pathlib import Path +from shutil import copyfileobj + + +# Instances of this class must be declared as class level variables +# starting with a name "ASSET_". This enables the pre-caching logic +# to easily find all referenced assets and download them prior to +# execution of the tests. +class Asset: + + def __init__(self, url, hashsum): + self.url = url + self.hash = hashsum + cache_dir_env = os.getenv('QEMU_TEST_CACHE_DIR') + if cache_dir_env: + self.cache_dir = Path(cache_dir_env, "download") + else: + self.cache_dir = Path(Path("~").expanduser(), + ".cache", "qemu", "download") + self.cache_file = Path(self.cache_dir, hashsum) + self.log = logging.getLogger('qemu-test') + + def __repr__(self): + return "Asset: url=%s hash=%s cache=%s" % ( + self.url, self.hash, self.cache_file) + + def _check(self, cache_file): + if self.hash is None: + return True + if len(self.hash) == 64: + sum_prog = 'sha256sum' + elif len(self.hash) == 128: + sum_prog = 'sha512sum' + else: + raise Exception("unknown hash type") + + checksum = subprocess.check_output( + [sum_prog, str(cache_file)]).split()[0] + return self.hash == checksum.decode("utf-8") + + def valid(self): + return self.cache_file.exists() and self._check(self.cache_file) + + def fetch(self): + if not self.cache_dir.exists(): + self.cache_dir.mkdir(parents=True, exist_ok=True) + + if self.valid(): + self.log.debug("Using cached asset %s for %s", + self.cache_file, self.url) + return str(self.cache_file) + + self.log.info("Downloading %s to %s...", self.url, self.cache_file) + tmp_cache_file = self.cache_file.with_suffix(".download") + + try: + resp = urllib.request.urlopen(self.url) + except Exception as e: + self.log.error("Unable to download %s: %s", self.url, e) + raise + + try: + with tmp_cache_file.open("wb+") as dst: + copyfileobj(resp, dst) + except: + tmp_cache_file.unlink() + raise + try: + # Set these just for informational purposes + os.setxattr(str(tmp_cache_file), "user.qemu-asset-url", + self.url.encode('utf8')) + os.setxattr(str(tmp_cache_file), "user.qemu-asset-hash", + self.hash.encode('utf8')) + except Exception as e: + self.log.debug("Unable to set xattr on %s: %s", tmp_cache_file, e) + pass + + if not self._check(tmp_cache_file): + tmp_cache_file.unlink() + raise Exception("Hash of %s does not match %s" % + (self.url, self.hash)) + tmp_cache_file.replace(self.cache_file) + + self.log.info("Cached %s at %s" % (self.url, self.cache_file)) + return str(self.cache_file)