{"id":23313,"url":"https://patchwork.libcamera.org/api/patches/23313/?format=json","web_url":"https://patchwork.libcamera.org/patch/23313/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20250430121449.39910-6-mzamazal@redhat.com>","date":"2025-04-30T12:14:38","name":"[v8,05/15] config: Look up log file in configuration file","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"76c90e7ed6fffbfdee588d8629eb593723402b55","submitter":{"id":177,"url":"https://patchwork.libcamera.org/api/people/177/?format=json","name":"Milan Zamazal","email":"mzamazal@redhat.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/23313/mbox/","series":[{"id":5156,"url":"https://patchwork.libcamera.org/api/series/5156/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5156","date":"2025-04-30T12:14:33","name":"Add global configuration file","version":8,"mbox":"https://patchwork.libcamera.org/series/5156/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/23313/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/23313/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 6AC9BBE08B\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 30 Apr 2025 12:15:18 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id BF98668B2F;\n\tWed, 30 Apr 2025 14:15:17 +0200 (CEST)","from us-smtp-delivery-124.mimecast.com\n\t(us-smtp-delivery-124.mimecast.com [170.10.129.124])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 0F4C568B28\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 30 Apr 2025 14:15:12 +0200 (CEST)","from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com\n\t(ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63])\n\tby relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n\tcipher=TLS_AES_256_GCM_SHA384) id us-mta-455-qZLJRIKtM8O-V6LNn1RAsg-1;\n\tWed, 30 Apr 2025 08:15:10 -0400","from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n\t(mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n\t[10.30.177.111])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\tkey-exchange X25519 server-signature RSA-PSS (2048 bits)\n\tserver-digest SHA256) (No client certificate requested)\n\tby mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTPS id 7B5521955E79; Wed, 30 Apr 2025 12:15:09 +0000 (UTC)","from mzamazal-thinkpadp1gen7.tpbc.com (unknown [10.44.32.120])\n\tby mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTP id 7626818001DA; Wed, 30 Apr 2025 12:15:07 +0000 (UTC)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=redhat.com header.i=@redhat.com\n\theader.b=\"BAtKO/IL\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1746015312;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\tto:to:cc:cc:mime-version:mime-version:content-type:content-type:\n\tcontent-transfer-encoding:content-transfer-encoding:\n\tin-reply-to:in-reply-to:references:references;\n\tbh=x0cfFdTQyu63X5WoQ6TH5TRwtGKd63Yf8qz/8DXGMsk=;\n\tb=BAtKO/ILXo7CTKJPoEdyK8dJoJpFLcrNZkBxamejGlKnkz+k/0Zg4bk9MOOMQb6Ywyp9dL\n\tyqIYlkKavT/6Wc2ThUbVg5VYBsGY1iAGztDoFRag+FWYKE3wmodcbx+eZvSktA71ll6sGu\n\t6qkych1ma4bVY0GVjaSCuJmWJK6CcgU=","X-MC-Unique":"qZLJRIKtM8O-V6LNn1RAsg-1","X-Mimecast-MFC-AGG-ID":"qZLJRIKtM8O-V6LNn1RAsg_1746015309","From":"Milan Zamazal <mzamazal@redhat.com>","To":"libcamera-devel@lists.libcamera.org","Cc":"Milan Zamazal <mzamazal@redhat.com>, Kieran Bingham\n\t<kieran.bingham@ideasonboard.com>, =?utf-8?q?Barnab=C3=A1s_P=C5=91cze?=\n\t<pobrn@protonmail.com>, Laurent Pinchart\n\t<laurent.pinchart@ideasonboard.com>","Subject":"[PATCH v8 05/15] config: Look up log file in configuration file","Date":"Wed, 30 Apr 2025 14:14:38 +0200","Message-ID":"<20250430121449.39910-6-mzamazal@redhat.com>","In-Reply-To":"<20250430121449.39910-1-mzamazal@redhat.com>","References":"<20250430121449.39910-1-mzamazal@redhat.com>","MIME-Version":"1.0","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.111","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"ru1kjWb-Ein8PV4H5Xv5luMyoAVNSpoMMIHQrWn2NDI_1746015309","X-Mimecast-Originator":"redhat.com","Content-Transfer-Encoding":"8bit","content-type":"text/plain; charset=\"US-ASCII\"; x-default=true","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":"Let's allow specifying the log file in the configuration file.  This\nrequires change in LIBCAMERA_LOG_FILE interpretation so that we can\ndisable the log file in isolated processes.  If LIBCAMERA_LOG_FILE is\ndefined but empty, it means there is no log file, even if defined in the\nconfiguration file.  This should cause no compatibility trouble since\nopening a file with an empty name makes little sense.\n\nThe configuration snippet:\n\n  configuration:\n    log:\n      file: FILENAME\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\n---\n src/libcamera/base/global_configuration.cpp |  1 +\n src/libcamera/base/log.cpp                  | 13 +++++++++----\n src/libcamera/process.cpp                   | 11 ++++++++---\n 3 files changed, 18 insertions(+), 7 deletions(-)","diff":"diff --git a/src/libcamera/base/global_configuration.cpp b/src/libcamera/base/global_configuration.cpp\nindex 84821f26..073096b5 100644\n--- a/src/libcamera/base/global_configuration.cpp\n+++ b/src/libcamera/base/global_configuration.cpp\n@@ -120,6 +120,7 @@ void initialize()\n  * \\code{.yaml}\n  * configuration:\n  *   log:\n+ *     file: syslog\n  *     levels: 'IPAManager:DEBUG'\n  * \\endcode\n  *\ndiff --git a/src/libcamera/base/log.cpp b/src/libcamera/base/log.cpp\nindex 3cda7c57..c702b825 100644\n--- a/src/libcamera/base/log.cpp\n+++ b/src/libcamera/base/log.cpp\n@@ -603,16 +603,21 @@ Logger::Logger()\n  */\n void Logger::parseLogFile()\n {\n-\tconst char *file = utils::secure_getenv(\"LIBCAMERA_LOG_FILE\");\n-\tif (!file)\n+\tstd::optional<std::string> file =\n+\t\tGlobalConfiguration::envOption(\"LIBCAMERA_LOG_FILE\", \"log.file\");\n+\tif (!file.has_value())\n \t\treturn;\n \n-\tif (!strcmp(file, \"syslog\")) {\n+\tauto fileValue = file.value();\n+\tif (fileValue == \"\")\n+\t\treturn;\n+\n+\tif (fileValue == \"syslog\") {\n \t\tlogSetTarget(LoggingTargetSyslog);\n \t\treturn;\n \t}\n \n-\tlogSetFile(file, false);\n+\tlogSetFile(fileValue.c_str(), false);\n }\n \n /**\ndiff --git a/src/libcamera/process.cpp b/src/libcamera/process.cpp\nindex 68fad327..c606164a 100644\n--- a/src/libcamera/process.cpp\n+++ b/src/libcamera/process.cpp\n@@ -11,7 +11,9 @@\n #include <dirent.h>\n #include <fcntl.h>\n #include <list>\n+#include <optional>\n #include <signal.h>\n+#include <stdlib.h>\n #include <string.h>\n #include <sys/socket.h>\n #include <sys/types.h>\n@@ -23,6 +25,8 @@\n #include <libcamera/base/log.h>\n #include <libcamera/base/utils.h>\n \n+#include \"libcamera/internal/global_configuration.h\"\n+\n /**\n  * \\file process.h\n  * \\brief Process object\n@@ -261,9 +265,10 @@ int Process::start(const std::string &path,\n \n \t\tcloseAllFdsExcept(fds);\n \n-\t\tconst char *file = utils::secure_getenv(\"LIBCAMERA_LOG_FILE\");\n-\t\tif (file && strcmp(file, \"syslog\"))\n-\t\t\tunsetenv(\"LIBCAMERA_LOG_FILE\");\n+\t\tstd::optional<std::string> file =\n+\t\t\tGlobalConfiguration::envOption(\"LIBCAMERA_LOG_FILE\", \"log.file\");\n+\t\tif (file.has_value() && file.value() != \"syslog\")\n+\t\t\tsetenv(\"LIBCAMERA_LOG_FILE\", \"\", 1);\n \n \t\tconst char **argv = new const char *[args.size() + 2];\n \t\tunsigned int len = args.size();\n","prefixes":["v8","05/15"]}