boards v6x: save FLASH by removing param longDesc from parameters.json

Kconfig

@@ -100,6 +100,11 @@ menu "Toolchain"
         help
             flag to enable constrained memory options (eg limit maximum number of uORB publications)
 
+    config BOARD_PARAM_REMOVE_LONGDESC
+        bool "Remove parameter long description from JSON"
+        help
+            flag to remove parameter long descriptions from the JSON output
+
     config BOARD_EXTERNAL_METADATA
         bool "External metadata"
         help

boards/ark/fmu-v6x/default.px4board

@@ -1,6 +1,7 @@
 CONFIG_BOARD_TOOLCHAIN="arm-none-eabi"
 CONFIG_BOARD_ARCHITECTURE="cortex-m7"
 CONFIG_BOARD_ETHERNET=y
+CONFIG_BOARD_PARAM_REMOVE_LONGDESC=y
 CONFIG_BOARD_SERIAL_GPS1="/dev/ttyS0"
 CONFIG_BOARD_SERIAL_GPS2="/dev/ttyS7"
 CONFIG_BOARD_SERIAL_TEL1="/dev/ttyS6"

boards/px4/fmu-v6x/default.px4board

@@ -1,6 +1,7 @@
 CONFIG_BOARD_TOOLCHAIN="arm-none-eabi"
 CONFIG_BOARD_ARCHITECTURE="cortex-m7"
 CONFIG_BOARD_ETHERNET=y
+CONFIG_BOARD_PARAM_REMOVE_LONGDESC=y
 CONFIG_BOARD_SERIAL_GPS1="/dev/ttyS0"
 CONFIG_BOARD_SERIAL_GPS2="/dev/ttyS7"
 CONFIG_BOARD_SERIAL_TEL1="/dev/ttyS6"

boards/px4/fmu-v6xrt/default.px4board

@@ -1,6 +1,7 @@
 CONFIG_BOARD_TOOLCHAIN="arm-none-eabi"
 CONFIG_BOARD_ARCHITECTURE="cortex-m7"
 CONFIG_BOARD_ETHERNET=y
+CONFIG_BOARD_PARAM_REMOVE_LONGDESC=y
 CONFIG_BOARD_SERIAL_GPS1="/dev/ttyS1"
 CONFIG_BOARD_SERIAL_GPS2="/dev/ttyS3"
 CONFIG_BOARD_SERIAL_TEL1="/dev/ttyS2"

cmake/kconfig.cmake

@@ -368,6 +368,12 @@ if(EXISTS ${BOARD_DEFCONFIG})
 		add_definitions(-DCONSTRAINED_MEMORY)
 	endif()
 
+	set(config_process_params_extra_flags "" CACHE INTERNAL "process params command extra flags" FORCE)
+
+	if(PARAM_REMOVE_LONGDESC)
+		set(config_process_params_extra_flags "--no-long-desc" CACHE INTERNAL "process params command extra flags" FORCE)
+	endif()
+
 	if(TESTING)
 		set(PX4_TESTING "1" CACHE INTERNAL "testing enabled" FORCE)
 	endif()

cmake/metadata.cmake

@@ -78,7 +78,7 @@ add_custom_target(metadata_parameters
 		--src-path `find ${PX4_SOURCE_DIR}/src -maxdepth 4 -type d` ${generated_params_dir}
 		--inject-xml ${PX4_SOURCE_DIR}/src/lib/parameters/parameters_injected.xml
 		--json ${PX4_BINARY_DIR}/docs/parameters.json
-		--compress
+		--compress ${config_process_params_extra_flags}
 
 	COMMAND ${PYTHON_EXECUTABLE} ${PX4_SOURCE_DIR}/src/lib/parameters/px_process_params.py
 		--src-path `find ${PX4_SOURCE_DIR}/src -maxdepth 4 -type d` ${generated_params_dir}

src/lib/parameters/CMakeLists.txt

@@ -126,6 +126,7 @@ add_custom_command(OUTPUT ${parameters_xml} ${parameters_json} ${parameters_json
 		--inject-xml ${CMAKE_CURRENT_SOURCE_DIR}/parameters_injected.xml
 		--overrides ${PARAM_DEFAULT_OVERRIDES}
 		--board ${PX4_BOARD}
+		${config_process_params_extra_flags}
 		#--verbose
 	COMMAND ${PYTHON_EXECUTABLE} ${PX4_SOURCE_DIR}/Tools/validate_json.py
 		--schema-file ${PX4_SOURCE_DIR}/src/modules/mavlink/mavlink/component_information/parameter.schema.json

src/lib/parameters/px4params/jsonout.py

@@ -5,7 +5,7 @@ import sys
 
 
 class JsonOutput():
-    def __init__(self, groups, board, inject_xml_file_name):
+    def __init__(self, groups, board, ignored_codes=[]):
         all_json=dict()
         all_json['version']=1
         all_params=[]
@@ -38,19 +38,19 @@ class JsonOutput():
         }
 
         schema_map = {
-                        "short_desc": "shortDesc",
+            "short_desc": "shortDesc",
-			"long_desc": "longDesc",
+            "long_desc": "longDesc",
-			"unit": "units",
+            "unit": "units",
-			}
+            }
         schema_map_typed = {
-			"min": "min",
+            "min": "min",
-			"max": "max",
+            "max": "max",
-			"increment": "increment",
+            "increment": "increment",
-			}
+            }
         schema_map_fix_type = {
-			"reboot_required": ("rebootRequired", bool),
+            "reboot_required": ("rebootRequired", bool),
-			"decimal": ("decimalPlaces", int),
+            "decimal": ("decimalPlaces", int),
-			}
+            }
         allowed_types = { "Uint8", "Int8", "Uint16", "Int16", "Uint32", "Int32", "Float"}
 
         last_param_name = ""
@@ -86,6 +86,10 @@ class JsonOutput():
                     last_param_name = param.GetName()
                     for code in param.GetFieldCodes():
                         value = param.GetFieldValue(code)
+                        # skip ignored codes
+                        if code in ignored_codes:
+                            continue
+
                         if code == "board":
                             if value == board:
                                 board_specific_param_set = True

src/lib/parameters/px_process_params.py

@@ -108,6 +108,9 @@ def main():
                         default="{}",
                         metavar="OVERRIDES",
                         help="a dict of overrides in the form of a json string")
+    parser.add_argument("-nl", "--no-long-desc",
+                        action='store_true',
+                        help="remove long parameter descriptions from the JSON output")
 
     args = parser.parse_args()
 
@@ -171,11 +174,13 @@ def main():
 
     # Output to JSON file
     if args.json:
+        ignored_codes = []
         if args.verbose:
             print("Creating Json file " + args.json)
+        if args.no_long_desc:
+            ignored_codes.append('long_desc')
         cur_dir = os.path.dirname(os.path.realpath(__file__))
-        out = jsonout.JsonOutput(param_groups, args.board,
+        out = jsonout.JsonOutput(param_groups, args.board, ignored_codes)
-                               os.path.join(cur_dir, args.inject_xml))
         out.Save(args.json)
         output_files.append(args.json)