cli: make the CLI prompt configurable

Create a new cli_config.h.in file that contains the version and the
prompt information.

Rename the PROMPT macro to NC_CLI_PROMPT.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>

cli/CMakeLists.txt

@@ -8,7 +8,11 @@ project(netopeer2-cli C)
 
 # set version
 set(NP2CLI_VERSION 2.0.78)
-configure_file("${CMAKE_CURRENT_SOURCE_DIR}/cli_version.h.in" "${PROJECT_BINARY_DIR}/cli_version.h" ESCAPE_QUOTES @ONLY)
+
+# configure CLI prompt
+set(CLI_PROMPT ">" CACHE STRING "Set the CLI prompt (a space is automatically appended at the end)")
+
+configure_file("${CMAKE_CURRENT_SOURCE_DIR}/cli_config.h.in" "${PROJECT_BINARY_DIR}/cli_config.h" ESCAPE_QUOTES @ONLY)
 include_directories(${PROJECT_BINARY_DIR})
 
 # source files

cli/cli_version.h.in → cli/cli_config.h.in

@@ -4,6 +4,7 @@
  * @brief netopeer2-cli version
  *
  * @copyright
+ * Copyright (c) 2024 - Heiko Thiery <heiko dot thiery at gmail dot com>
  * Copyright (c) 2019 - 2021 Deutsche Telekom AG.
  * Copyright (c) 2017 - 2021 CESNET, z.s.p.o.
  *
@@ -15,3 +16,5 @@
  */
 
 #define CLI_VERSION "@NP2CLI_VERSION@"
+
+#define NC_CLI_PROMPT "@CLI_PROMPT@ "

cli/commands.h

@@ -17,16 +17,14 @@
 #ifndef COMMANDS_H_
 #define COMMANDS_H_
 
-#include "cli_version.h"
+#include "cli_config.h"
 
 #include <stdio.h>
 
 extern char some_msg[];
 #define INSTRUCTION(format, args ...) {snprintf(some_msg,4095,format,##args);printf("\n  %s",some_msg);}
 #define ERROR(function, format, args ...) {snprintf(some_msg,4095,format,##args);fprintf(stderr,"%s: %s\n",function,some_msg);}
 
-#define PROMPT "> "
-
 typedef struct {
     char *name; /* User printable name of the function. */
 

cli/main.c

@@ -144,7 +144,7 @@ main(void)
 
     while (!done) {
         /* get the command from user */
-        cmdline = linenoise(PROMPT);
+        cmdline = linenoise(NC_CLI_PROMPT);
 
         /* EOF -> exit */
         if (cmdline == NULL) {