Board ID as build flag

When using IDE or `arduino-cli board list`, show full board name and FQBN
```
$ arduino-cli.exe board list
Port          Protocol Type              Board Name                FQBN                       Core
xxx.xxx.x.xxx network  Network Port      LOLIN(WEMOS) D1 R2 & mini esp8266com:esp8266:d1_mini esp8266com:esp8266
```
Also add `description` field to the mDNS response containing the
original `{build.board}` string value.

resolve esp8266#7759

Author: mcspr

libraries/ESP8266mDNS/src/LEAmDNS.cpp

@@ -31,6 +31,15 @@
 #include <lwip/igmp.h>
 #include <lwip/prot/dns.h>
 
+// these should be defined at build time
+#ifndef ARDUINO_BOARD
+#define ARDUINO_BOARD "ESP8266_GENERIC"
+#endif
+
+#ifndef ARDUINO_BOARD_ID
+#define ARDUINO_BOARD_ID "generic"
+#endif
+
 namespace esp8266
 {
 
@@ -40,16 +49,6 @@ namespace esp8266
 namespace MDNSImplementation
 {
 
-/**
-    STRINGIZE
-*/
-#ifndef STRINGIZE
-#define STRINGIZE(x) #x
-#endif
-#ifndef STRINGIZE_VALUE_OF
-#define STRINGIZE_VALUE_OF(x) STRINGIZE(x)
-#endif
-
     /**
         INTERFACE
     */
@@ -1258,7 +1257,8 @@ namespace MDNSImplementation
         {
             if ((!addServiceTxt(hService, "tcp_check", "no"))
                 || (!addServiceTxt(hService, "ssh_upload", "no"))
-                || (!addServiceTxt(hService, "board", STRINGIZE_VALUE_OF(ARDUINO_BOARD)))
+                || (!addServiceTxt(hService, "board", ARDUINO_BOARD_ID))
+                || (!addServiceTxt(hService, "description", ARDUINO_BOARD))
                 || (!addServiceTxt(hService, "auth_upload", (p_bAuthUpload) ? "yes" : "no")))
             {
                 removeService(hService);

libraries/ESP8266mDNS/src/LEAmDNS.h

@@ -132,11 +132,6 @@ namespace esp8266
 namespace MDNSImplementation
 {
 
-// this should be defined at build time
-#ifndef ARDUINO_BOARD
-#define ARDUINO_BOARD "generic"
-#endif
-
 #define MDNS_IP4_SUPPORT
 #if LWIP_IPV6
 //#define MDNS_IP6_SUPPORT

platform.txt

@@ -128,13 +128,13 @@ recipe.hooks.linking.prelink.3.pattern="{compiler.path}{compiler.c.cmd}" -CC -E
 recipe.hooks.linking.prelink.4.pattern="{compiler.path}{compiler.c.cmd}" -CC -E -P {build.vtable_flags} {build.mmuflags} "{runtime.platform.path}/tools/sdk/ld/eagle.app.v6.common.ld.h" -o "{build.path}/local.eagle.app.v6.common.ld"
 
 ## Compile c files
-recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.cpreprocessor.flags} {compiler.c.flags} -D{build.sdk}=1 -DF_CPU={build.f_cpu} {build.lwip_flags} {build.debug_port} {build.debug_level} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" {build.led} {build.flash_flags} {compiler.c.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
+recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.cpreprocessor.flags} {compiler.c.flags} -D{build.sdk}=1 -DF_CPU={build.f_cpu} {build.lwip_flags} {build.debug_port} {build.debug_level} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_BOARD_ID="{_id}" {build.led} {build.flash_flags} {compiler.c.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
 
 ## Compile c++ files
-recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpreprocessor.flags} {compiler.cpp.flags} -D{build.sdk}=1 -DF_CPU={build.f_cpu} {build.lwip_flags} {build.debug_port} {build.debug_level} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" {build.led} {build.flash_flags} {compiler.cpp.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
+recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpreprocessor.flags} {compiler.cpp.flags} -D{build.sdk}=1 -DF_CPU={build.f_cpu} {build.lwip_flags} {build.debug_port} {build.debug_level} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_BOARD_ID="{_id}" {build.led} {build.flash_flags} {compiler.cpp.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
 
 ## Compile S files
-recipe.S.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.cpreprocessor.flags} {compiler.S.flags} -D{build.sdk}=1 -DF_CPU={build.f_cpu} {build.lwip_flags} {build.debug_port} {build.debug_level} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" {build.led} {build.flash_flags} {compiler.S.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
+recipe.S.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.cpreprocessor.flags} {compiler.S.flags} -D{build.sdk}=1 -DF_CPU={build.f_cpu} {build.lwip_flags} {build.debug_port} {build.debug_level} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_BOARD_ID="{_id}" {build.led} {build.flash_flags} {compiler.S.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
 
 ## Create archives
 recipe.ar.pattern="{compiler.path}{compiler.ar.cmd}" {compiler.ar.flags} {compiler.ar.extra_flags} "{archive_file_path}" "{object_file}"

tools/platformio-build.py

@@ -127,6 +127,7 @@ def scons_patched_match_splitext(path, suffixes=None):
         "_GNU_SOURCE",
         ("ARDUINO", 10805),
         ("ARDUINO_BOARD", '\\"PLATFORMIO_%s\\"' % env.BoardConfig().id.upper()),
+        ("ARDUINO_BOARD_ID", '\\"%s\\"' % env.BoardConfig().id),
         "FLASHMODE_${BOARD_FLASH_MODE.upper()}",
         "LWIP_OPEN_SRC"
     ],