From 35a4aa60f90ef79cef9afbef0ba548a24d5ed487 Mon Sep 17 00:00:00 2001
From: Ben Hitchcock <ben@zensoft.com.au>
Date: Sat, 2 Aug 2014 13:59:46 +0800
Subject: [PATCH] Adding 'get' command to the CLI, to view a single variable.

This enables the user to type "get variablename" in the CLI, which then shows the value of that variable (or a message saying "Variable 'variablename' not found").
This is easier for the user when they just want to see a single variable, instead of typing 'dump' and then having to parse a big long list of data.  It is also more intuitive than typing 'set variablename', as this feels unsafe.
---
 src/main/io/serial_cli.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/main/io/serial_cli.c b/src/main/io/serial_cli.c
index 40134aa010..e2856876bf 100644
--- a/src/main/io/serial_cli.c
+++ b/src/main/io/serial_cli.c
@@ -81,6 +81,7 @@ static void cliMotor(char *cmdline);
 static void cliProfile(char *cmdline);
 static void cliSave(char *cmdline);
 static void cliSet(char *cmdline);
+static void cliGet(char *cmdline);
 static void cliStatus(char *cmdline);
 static void cliVersion(char *cmdline);
 
@@ -136,6 +137,7 @@ const clicmd_t cmdTable[] = {
     { "dump", "print configurable settings in a pastable form", cliDump },
     { "exit", "", cliExit },
     { "feature", "list or -val or val", cliFeature },
+    { "get", "get variable value", cliGet },
 #ifdef GPS
     { "gpspassthrough", "passthrough gps to serial", cliGpsPassthrough },
 #endif
@@ -974,6 +976,29 @@ static void cliSet(char *cmdline)
     }
 }
 
+static void cliGet(char *cmdline)
+{
+    uint32_t i;
+    uint32_t len;
+    const clivalue_t *val;
+  	
+    len = strlen(cmdline);
+	
+	// Find the matching variable
+	for (i = 0; i < VALUE_COUNT; i++) {
+		if ((strncasecmp(cmdline, valueTable[i].name, strlen(valueTable[i].name)) == 0) && (len == strlen(valueTable[i].name))) {
+			val = &valueTable[i];
+			printf("%s = ", valueTable[i].name);
+			cliPrintVar(val, 0);
+			printf("\r\n");
+			return;
+		}
+	}
+	
+	// If we get down here, then the variable was not found
+	printf("Variable '%s' not found.\r\n ", cmdline);
+}
+
 static void cliStatus(char *cmdline)
 {
     uint8_t i;