Add automatic library configuration to build setup task

README.md

@@ -21,13 +21,6 @@ Run `bash ./build setup` from the command line at the root of this repository.
 ### IoT Device
  - Copy `settings.custom.cpp.example` to `settings.custom.cpp` and fill in the fields there
  - Review `settings.h` to make sure it matches your setup
- - Edit `iot/libraries/arduino-lmic/src/lmic/config.h`, and add the following to the bottom:
-
-```c++
-#define DISABLE_PING
-#define DISABLE_BEACONS
-```
-
  - Copy the folders in `iot/libraries` to your Arduino IDE libraries folder
 
 ## Useful Links

build

@@ -43,18 +43,60 @@ fi
 
 ###############################################################################
 
-task_setup() {
-	task_begin "Setting up";
+# Toggles commenting and uncommenting lines in a file that contain a specific 
+# substring. Checks for word boundaries either side of the substring.
+# From https://stackoverflow.com/a/24901636/1460422
+# $1 - Filename
+# $2 - Search string
+comment_toggle() {
+	filename="${1}";
+	search_string="${2}";
 	
+	awk -v commentId='//' -v word="${search_string}" '
+	  $0 ~ "(^|[[:punct:][:space:]])" word "($|[[:punct:][:space:]])" { 
+	    if (match($0, "^[[:space:]]*" commentId))
+	      $0 = substr($0, RSTART + RLENGTH)
+	    else
+	      $0 = commentId $0
+	  } 
+	  { print }' "${filename}" > tmpfile.$$ && mv tmpfile.$$ "${filename}"
+}
+
+task_setup() {
+	stage_begin "Setting up";
+	
+	task_begin "Checking Environment";
 	check_command git true;
+	check_command awk true;
 	check_command pdflatex true;
 	check_command bibtex true;
+	task_end $?;
 	
-	subtask_begin "Initialising submodules";
+	task_begin "Initialising submodules";
 	git submodule update --init;
-	subtask_end $?;
+	task_end $?;
 	
-	task_end 0;
+	task_begin "Preconfiguring libraries";
+	config_file_directory="./iot/libraries/arduino-lmic/src/lmic/";
+	config_file_name="config.h";
+	cd "${config_file_directory}";
+	git reset --hard;
+	# Disable OTAA
+	comment_toggle "${config_file_name}" "#define DISABLE_JOIN";
+	# Disable class b stuff
+	comment_toggle "${config_file_name}" "#define DISABLE_PING";
+	comment_toggle "${config_file_name}" "#define DISABLE_BEACONS";
+	# Disable other misc. stuff we're not likely to use
+	comment_toggle "${config_file_name}" "#define DISABLE_MCMD_DCAP_REQ"; # Duty cycle cap - won't  work anyway 'cause we're shutting down in between
+	comment_toggle "${config_file_name}" "#define DISABLE_MCMD_DN2P_SET"; # Receiving stuff
+	
+	# echo "#define DISABLE_JOIN" >>"${config_file_name}";
+	# echo "#define DISABLE_PING" >>"${config_file_name}";
+	# echo "#define DISABLE_BEACONS" >>"${config_file_name}";
+	cd -;
+	task_end $?;
+	
+	stage_end 0;
 }
 
 task_render() {