gnss-sdr now accepts a --config_file flag for specifying the configuration file:

./gnss-sdr --config_file="my_receiver.conf" 

and another --signal_source flag that, if specified, overrides the file in the configuration:

./gnss-sdr --signal_source=/path/to/file.dat

Requires gflags 1.6 or later.

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@100 64b25241-fba3-4117-9849-534c7e92360d

src/algorithms/signal_source/adapters/file_signal_source.cc

@@ -40,7 +40,7 @@
 #include <iostream>
 #include <fstream>
 #include <iomanip>
-
+#include <gflags/gflags.h>
 #include <glog/log_severity.h>
 #include <glog/logging.h>
 
@@ -48,6 +48,10 @@
 
 using google::LogMessage;
 
+DEFINE_string(signal_source, "-",
+        "If defined, path to the file containing the signal samples (overrides the configuration file)");
+
+
 FileSignalSource::FileSignalSource(ConfigurationInterface* configuration,
         std::string role, unsigned int in_streams, unsigned int out_streams,
         gr_msg_queue_sptr queue) :
@@ -63,6 +67,9 @@ FileSignalSource::FileSignalSource(ConfigurationInterface* configuration,
     sampling_frequency_ = configuration->property(role
             + ".sampling_frequency", 0);
     filename_ = configuration->property(role + ".filename", default_filename);
+    // override value with commandline flag, if present
+    if (FLAGS_signal_source.compare("-") != 0) filename_= FLAGS_signal_source;
+
     item_type_ = configuration->property(role + ".item_type",
             default_item_type);
     repeat_ = configuration->property(role + ".repeat", false);