[FL-2859,2838] fbt: improvements for FAPs (#1813)

* fbt: assets builder for apps WIP
* fbt: automatically building private fap assets
* docs: details on how to use image assets
* fbt: renamed fap_assets -> fap_icons
* fbt: support for fap_extbuild field
* docs: info on fap_extbuild
* fbt: added --proxy-env parame ter
* fbt: made firmware_cdb & updater_cdb targets always available
* fbt: renamed fap_icons -> fap_icon_assets
* fbt: deprecated firmware_* target names for faps; new alias is "fap_APPID"
* fbt: changed intermediate file locations for external apps
* fbt: support for fap_private_libs; docs: updates
* restored mbedtls as global lib
* scripts: lint.py: skip "lib" subfolder
* fbt: Sanity checks for building advanced faps as part of fw
* docs: info on fap_private_libs; fbt: optimized *.fam indexing
* fbt: cleanup; samples: added sample_icons app
* fbt: moved example app to applications/examples
* linter fix
* docs: readme fixes
* added applications/examples/application.fam stub
* docs: more info on private libs

Co-authored-by: あく <alleteam@gmail.com>

scripts/assets.py

@@ -14,7 +14,7 @@ ICONS_TEMPLATE_H_HEADER = """#pragma once
 """
 ICONS_TEMPLATE_H_ICON_NAME = "extern const Icon {name};\n"
 
-ICONS_TEMPLATE_C_HEADER = """#include \"assets_icons.h\"
+ICONS_TEMPLATE_C_HEADER = """#include "{assets_filename}.h"
 
 #include <gui/icon_i.h>
 
@@ -33,6 +33,13 @@ class Main(App):
         )
         self.parser_icons.add_argument("input_directory", help="Source directory")
         self.parser_icons.add_argument("output_directory", help="Output directory")
+        self.parser_icons.add_argument(
+            "--filename",
+            help="Base filename for file with icon data",
+            required=False,
+            default="assets_icons",
+        )
+
         self.parser_icons.set_defaults(func=self.icons)
 
         self.parser_manifest = self.subparsers.add_parser(
@@ -102,13 +109,15 @@ class Main(App):
         return extension in ICONS_SUPPORTED_FORMATS
 
     def icons(self):
-        self.logger.debug(f"Converting icons")
+        self.logger.debug("Converting icons")
         icons_c = open(
-            os.path.join(self.args.output_directory, "assets_icons.c"),
+            os.path.join(self.args.output_directory, f"{self.args.filename}.c"),
             "w",
             newline="\n",
         )
-        icons_c.write(ICONS_TEMPLATE_C_HEADER)
+        icons_c.write(
+            ICONS_TEMPLATE_C_HEADER.format(assets_filename=self.args.filename)
+        )
         icons = []
         # Traverse icons tree, append image data to source file
         for dirpath, dirnames, filenames in os.walk(self.args.input_directory):
@@ -194,7 +203,7 @@ class Main(App):
         # Create Public Header
         self.logger.debug(f"Creating header")
         icons_h = open(
-            os.path.join(self.args.output_directory, "assets_icons.h"),
+            os.path.join(self.args.output_directory, f"{self.args.filename}.h"),
             "w",
             newline="\n",
         )

scripts/lint.py

@@ -54,6 +54,10 @@ class Main(App):
         output = []
         for folder in folders:
             for dirpath, dirnames, filenames in os.walk(folder):
+                # Skipping 3rd-party code - usually resides in subfolder "lib"
+                if "lib" in dirnames:
+                    dirnames.remove("lib")
+
                 for filename in filenames:
                     ext = os.path.splitext(filename.lower())[1]
                     if not ext in SOURCE_CODE_FILE_EXTENSIONS: