From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53196) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fVt31-00013q-2G for qemu-devel@nongnu.org; Thu, 21 Jun 2018 02:26:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fVt30-0000iQ-1b for qemu-devel@nongnu.org; Thu, 21 Jun 2018 02:26:23 -0400 Received: from mail-wm0-x234.google.com ([2a00:1450:400c:c09::234]:37071) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fVt2z-0000hr-RA for qemu-devel@nongnu.org; Thu, 21 Jun 2018 02:26:21 -0400 Received: by mail-wm0-x234.google.com with SMTP id r125-v6so3615564wmg.2 for ; Wed, 20 Jun 2018 23:26:21 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Thu, 21 Jun 2018 07:26:01 +0100 Message-Id: <20180621062605.941-54-alex.bennee@linaro.org> In-Reply-To: <20180621062605.941-1-alex.bennee@linaro.org> References: <20180621062605.941-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PULL v2 53/57] docker: docker.py add check sub-command List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: peter.maydell@linaro.org Cc: qemu-devel@nongnu.org, cota@braap.org, famz@redhat.com, berrange@redhat.com, f4bug@amsat.org, richard.henderson@linaro.org, balrogg@gmail.com, aurelien@aurel32.net, agraf@suse.de, =?UTF-8?q?Alex=20Benn=C3=A9e?= This command allows you to check if we need to re-build a docker image. If the image isn't in the repository or the checksums don't match then we return false and some text (for processing in makefiles). Signed-off-by: Alex Bennée diff --git a/tests/docker/docker.py b/tests/docker/docker.py index 6a9f2f224b..e4f37820e0 100755 --- a/tests/docker/docker.py +++ b/tests/docker/docker.py @@ -184,8 +184,14 @@ class Docker(object): stderr=subprocess.STDOUT, **kwargs) + def inspect_tag(self, tag): + try: + return self._output(["inspect", tag]) + except subprocess.CalledProcessError: + return None + def get_image_dockerfile_checksum(self, tag): - resp = self._output(["inspect", tag]) + resp = self.inspect_tag(tag) labels = json.loads(resp)[0]["Config"].get("Labels", {}) return labels.get("com.qemu.dockerfile-checksum", "") @@ -447,6 +453,36 @@ class CcCommand(SubCommand): return Docker().command("run", cmd, args.quiet) +class CheckCommand(SubCommand): + """Check if we need to re-build a docker image out of a dockerfile. + Arguments: """ + name = "check" + + def args(self, parser): + parser.add_argument("tag", + help="Image Tag") + parser.add_argument("dockerfile", + help="Dockerfile name") + + def run(self, args, argv): + dockerfile = open(args.dockerfile, "rb").read() + tag = args.tag + + dkr = Docker() + info = dkr.inspect_tag(tag) + if info is None: + print("Image does not exist") + return 1 + + if dkr.image_matches_dockerfile(tag, dockerfile): + if not args.quiet: + print("Image is up to date") + return 0 + else: + print("Image needs updating") + return 1 + + def main(): parser = argparse.ArgumentParser(description="A Docker helper", usage="%s ..." % os.path.basename(sys.argv[0])) -- 2.17.1