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{
    "id": 12986,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/12986/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/12986/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20210715211459.19373-15-laurent.pinchart@ideasonboard.com>",
    "date": "2021-07-15T21:14:40",
    "name": "[libcamera-devel,v3,14/33] cam: options: Fail parsing when non-option arguments are found",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "28d9ac522c406fac6b0d1f77b637b9ecae0ad9a2",
    "submitter": {
        "id": 2,
        "url": "https://patchwork.libcamera.org/api/1.1/people/2/?format=api",
        "name": "Laurent Pinchart",
        "email": "laurent.pinchart@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/12986/mbox/",
    "series": [
        {
            "id": 2242,
            "url": "https://patchwork.libcamera.org/api/1.1/series/2242/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=2242",
            "date": "2021-07-15T21:14:26",
            "name": "Multi-camera support in the cam application",
            "version": 3,
            "mbox": "https://patchwork.libcamera.org/series/2242/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/12986/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/12986/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
        "Delivered-To": "parsemail@patchwork.libcamera.org",
        "Received": [
            "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 369FAC3227\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 15 Jul 2021 21:15:23 +0000 (UTC)",
            "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 4434A6059F;\n\tThu, 15 Jul 2021 23:15:20 +0200 (CEST)",
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        ],
        "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"UaL6Jkas\"; dkim-atps=neutral",
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1626383709;\n\tbh=d/GKM8jX8FccS5quAQcvimkG/BOL4gq1kNDBoypOx4E=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=UaL6JkasM2xf0Of6W1EClrqRi3jLr2bG2YIF9JyMJukk0hir8KDUhOq/3/kmi5EDP\n\tRLrQprccLEPEQ+E4yw8OivQShkiPnzW3xKI9oJLIFUKHmox6Bp0j5jB+rmCwu31Zv2\n\tdCMzcwHz8kAsTV2tKprnpEoQSl+SbyBHDvlMXrxg=",
        "From": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Fri, 16 Jul 2021 00:14:40 +0300",
        "Message-Id": "<20210715211459.19373-15-laurent.pinchart@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.31.1",
        "In-Reply-To": "<20210715211459.19373-1-laurent.pinchart@ideasonboard.com>",
        "References": "<20210715211459.19373-1-laurent.pinchart@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v3 14/33] cam: options: Fail parsing when\n\tnon-option arguments are found",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
        "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>",
        "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>",
        "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>",
        "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>",
        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "The options parser currently ignores non-option arguments silently,\nwhich is confusing. It's a common error to run 'cam -c1 -C 10' and\nexpect only 10 frames to be captured. As the -C option takes an optional\nargument, the number 10 is interpreted as a non-option argument instead\nof the argument to the -C option.\n\nFail parsing with an appropriate message and print usage information\nwhen a non-option argument is found. The parser may be extended later to\naccept non-option arguments when the application has a use for them.\n\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n src/cam/options.cpp | 7 +++++++\n 1 file changed, 7 insertions(+)",
    "diff": "diff --git a/src/cam/options.cpp b/src/cam/options.cpp\nindex 6e0d802cb986..33bc512e6571 100644\n--- a/src/cam/options.cpp\n+++ b/src/cam/options.cpp\n@@ -945,6 +945,13 @@ OptionsParser::Options OptionsParser::parse(int argc, char **argv)\n \t\t}\n \t}\n \n+\tif (optind < argc) {\n+\t\tstd::cerr << \"Invalid non-option argument '\" << argv[optind]\n+\t\t\t  << \"'\" << std::endl;\n+\t\tusage();\n+\t\treturn options;\n+\t}\n+\n \toptions.valid_ = true;\n \treturn options;\n }\n",
    "prefixes": [
        "libcamera-devel",
        "v3",
        "14/33"
    ]
}