[FL-2832] fbt: more fixes & improvements (#1854)

* github: bundling debug folder with scripts; docs: fixes & updates; fbt: added FAP_EXAMPLES variable to enable building example apps. Disabled by default. fbt: added TERM to list of proxied environment variables
* fbt: better help output; disabled implicit_deps_unchanged; added color to import validator reports
* fbt: moved debug configuration to separate tool
* fbt: proper dependency tracker for SDK source file; renamed linker script for external apps
* fbt: fixed debug elf path
* fbt: packaging sdk archive
* scripts: fixed sconsdist.py
* fbt: reworked sdk packing; docs: updates
* docs: info on cli target; linter fixes
* fbt: moved main code to scripts folder
* scripts: packing update into .tgz
* fbt, scripts: reworked copro_dist to build .tgz
* scripts: fixed naming for archived updater package
* Scripts: fix ぐるぐる回る

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

scripts/fbt_tools/fbt_apps.py

@@ -0,0 +1,85 @@
+from SCons.Builder import Builder
+from SCons.Action import Action
+from SCons.Warnings import warn, WarningOnByDefault
+import SCons
+import os.path
+
+from fbt.appmanifest import (
+    FlipperAppType,
+    AppManager,
+    ApplicationsCGenerator,
+    FlipperManifestException,
+)
+
+# Adding objects for application management to env
+#  AppManager env["APPMGR"] - loads all manifests; manages list of known apps
+#  AppBuildset env["APPBUILD"] - contains subset of apps, filtered for current config
+
+
+def LoadApplicationManifests(env):
+    appmgr = env["APPMGR"] = AppManager()
+    for app_dir, _ in env["APPDIRS"]:
+        app_dir_node = env.Dir("#").Dir(app_dir)
+
+        for entry in app_dir_node.glob("*", ondisk=True, source=True):
+            if isinstance(entry, SCons.Node.FS.Dir) and not str(entry).startswith("."):
+                try:
+                    app_manifest_file_path = os.path.join(
+                        entry.abspath, "application.fam"
+                    )
+                    appmgr.load_manifest(app_manifest_file_path, entry)
+                    env.Append(PY_LINT_SOURCES=[app_manifest_file_path])
+                except FlipperManifestException as e:
+                    warn(WarningOnByDefault, str(e))
+
+
+def PrepareApplicationsBuild(env):
+    appbuild = env["APPBUILD"] = env["APPMGR"].filter_apps(env["APPS"])
+    env.Append(
+        SDK_HEADERS=appbuild.get_sdk_headers(),
+    )
+    env["APPBUILD_DUMP"] = env.Action(
+        DumpApplicationConfig,
+        "\tINFO\t",
+    )
+
+
+def DumpApplicationConfig(target, source, env):
+    print(f"Loaded {len(env['APPMGR'].known_apps)} app definitions.")
+    print("Firmware modules configuration:")
+    for apptype in FlipperAppType:
+        app_sublist = env["APPBUILD"].get_apps_of_type(apptype)
+        if app_sublist:
+            print(
+                f"{apptype.value}:\n\t",
+                ", ".join(app.appid for app in app_sublist),
+            )
+
+
+def build_apps_c(target, source, env):
+    target_file_name = target[0].path
+
+    gen = ApplicationsCGenerator(env["APPBUILD"], env.subst("$LOADER_AUTOSTART"))
+    with open(target_file_name, "w") as file:
+        file.write(gen.generate())
+
+
+def generate(env):
+    env.AddMethod(LoadApplicationManifests)
+    env.AddMethod(PrepareApplicationsBuild)
+
+    env.Append(
+        BUILDERS={
+            "ApplicationsC": Builder(
+                action=Action(
+                    build_apps_c,
+                    "${APPSCOMSTR}",
+                ),
+                suffix=".c",
+            ),
+        }
+    )
+
+
+def exists(env):
+    return True