[RFC,05/11] config: Look up log file in configuration file
diff mbox series

Message ID 20240326112419.503286-6-mzamazal@redhat.com
State New
Headers show
Series
  • Add global configuration file
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Commit Message

Milan Zamazal March 26, 2024, 11:24 a.m. UTC 
This requires change in LIBCAMERA_LOG_FILE interpretation so that we can disable
the log file in isolated processes.  If LIBCAMERA_LOG_FILE is defined but empty,
it means there is no log file, even if defined in the configuration file.  This
should cause no compatibility trouble since opening a file with an empty name
makes little sense.

The configuration snippet:

  configuration:
    log:
      file: FILENAME

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
---
 src/libcamera/base/log.cpp | 13 +++++++++----
 src/libcamera/process.cpp  | 11 ++++++++---
 2 files changed, 17 insertions(+), 7 deletions(-)

Patch
diff mbox series 

diff --git a/src/libcamera/base/log.cpp b/src/libcamera/base/log.cpp
index 7e58e4f9..a373d38b 100644
--- a/src/libcamera/base/log.cpp
+++ b/src/libcamera/base/log.cpp
@@ -607,16 +607,21 @@  Logger::Logger()
  */
 void Logger::parseLogFile()
 {
-	const char *file = utils::secure_getenv("LIBCAMERA_LOG_FILE");
-	if (!file)
+	std::optional<std::string> file =
+		GlobalConfiguration::envOption("LIBCAMERA_LOG_FILE", "log.file");
+	if (!file.has_value())
 		return;
 
-	if (!strcmp(file, "syslog")) {
+	auto fileValue = file.value();
+	if (fileValue == "")
+		return;
+
+	if (fileValue != "syslog") {
 		logSetTarget(LoggingTargetSyslog);
 		return;
 	}
 
-	logSetFile(file, false);
+	logSetFile(fileValue.c_str(), false);
 }
 
 /**
diff --git a/src/libcamera/process.cpp b/src/libcamera/process.cpp
index 86a382fb..4bfce285 100644
--- a/src/libcamera/process.cpp
+++ b/src/libcamera/process.cpp
@@ -12,7 +12,9 @@ 
 #include <fcntl.h>
 #include <iostream>
 #include <list>
+#include <optional>
 #include <signal.h>
+#include <stdlib.h>
 #include <string.h>
 #include <sys/socket.h>
 #include <sys/types.h>
@@ -24,6 +26,8 @@ 
 #include <libcamera/base/log.h>
 #include <libcamera/base/utils.h>
 
+#include "libcamera/internal/global_configuration.h"
+
 /**
  * \file process.h
  * \brief Process object
@@ -263,9 +267,10 @@  int Process::start(const std::string &path,
 
 		closeAllFdsExcept(fds);
 
-		const char *file = utils::secure_getenv("LIBCAMERA_LOG_FILE");
-		if (file && strcmp(file, "syslog"))
-			unsetenv("LIBCAMERA_LOG_FILE");
+		std::optional<std::string> file =
+			GlobalConfiguration::envOption("LIBCAMERA_LOG_FILE", "log.file");
+		if (file.has_value() && file.value() != "syslog")
+			setenv("LIBCAMERA_LOG_FILE", "", 1);
 
 		const char **argv = new const char *[args.size() + 2];
 		unsigned int len = args.size();