0805b8048f
Remove and create the kernel_blob.bin file in the flutter_assets directory:
When Flutter compiles the source code, it creates the kernel_blob.bin file,
a Dart Kernel Bytecode of the application.
If kernel_blob.bin exists inside the flutter_assets directory, then the
application source code can be extracted with nothing more than apktool.
Not only is this a security risk, it's also redundant and a waste of space.
Removing the kernel_blob.bin file generated for flutter-gallery saves 86M!
Because this package is a reference package, and some applications may check
if the kernel_blob.bin file exists, we also touch a blank kernel_blob.bin
file.
Do not use relative symlinks:
Users may install their applications in any arbitaryt location, not
necessarily in the /usr/share/flutter/${package_name} directory. Because
flutter-gallery is a reference application, using exact symlinks to
icudtl.dat and libflutter_engine.so is preferable.
Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
58 lines
2.1 KiB
Makefile
58 lines
2.1 KiB
Makefile
################################################################################
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#
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# flutter-gallery
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#
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################################################################################
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FLUTTER_GALLERY_VERSION = 2.10.2
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FLUTTER_GALLERY_SITE = $(call github,flutter,gallery,v$(FLUTTER_GALLERY_VERSION))
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FLUTTER_GALLERY_LICENSE = BSD-3-Clause
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FLUTTER_GALLERY_LICENSE_FILES = LICENSE
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FLUTTER_GALLERY_DEPENDENCIES = \
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host-flutter-sdk-bin \
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flutter-engine
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FLUTTER_GALLERY_INSTALL_DIR = $(TARGET_DIR)/usr/share/flutter/gallery/$(FLUTTER_ENGINE_RUNTIME_MODE)
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define FLUTTER_GALLERY_CONFIGURE_CMDS
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cd $(@D) && \
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FLUTTER_RUNTIME_MODES=$(FLUTTER_ENGINE_RUNTIME_MODE) \
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$(HOST_FLUTTER_SDK_BIN_FLUTTER) clean && \
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$(HOST_FLUTTER_SDK_BIN_FLUTTER) pub get && \
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$(HOST_FLUTTER_SDK_BIN_FLUTTER) build bundle
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endef
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define FLUTTER_GALLERY_BUILD_CMDS
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cd $(@D) && \
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FLUTTER_RUNTIME_MODES=$(FLUTTER_ENGINE_RUNTIME_MODE) \
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$(HOST_FLUTTER_SDK_BIN_DART_BIN) \
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-Dflutter.dart_plugin_registrant=file://$(@D)/.dart_tool/flutter_build/dart_plugin_registrant.dart \
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--source file://$(@D)/.dart_tool/flutter_build/dart_plugin_registrant.dart \
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--source package:flutter/src/dart_plugin_registrant.dart \
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--native-assets $(@D)/.dart_tool/flutter_build/*/native_assets.yaml \
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package:gallery/main.dart && \
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$(HOST_FLUTTER_SDK_BIN_ENV) $(FLUTTER_ENGINE_GEN_SNAPSHOT) \
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--deterministic \
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--obfuscate \
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--snapshot_kind=app-aot-elf \
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--elf=libapp.so \
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.dart_tool/flutter_build/*/app.dill
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endef
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define FLUTTER_GALLERY_INSTALL_TARGET_CMDS
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mkdir -p $(FLUTTER_GALLERY_INSTALL_DIR)/{data,lib}
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cp -dprf $(@D)/build/flutter_assets $(FLUTTER_GALLERY_INSTALL_DIR)/data/
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$(INSTALL) -D -m 0755 $(@D)/libapp.so \
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$(FLUTTER_GALLERY_INSTALL_DIR)/lib/libapp.so
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ln -sf /usr/share/flutter/$(FLUTTER_ENGINE_RUNTIME_MODE)/data/icudtl.dat \
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$(FLUTTER_GALLERY_INSTALL_DIR)/data/
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ln -sf /usr/lib/libflutter_engine.so $(FLUTTER_GALLERY_INSTALL_DIR)/lib/
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$(RM) $(FLUTTER_GALLERY_INSTALL_DIR)/data/flutter_assets/kernel_blob.bin
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touch $(FLUTTER_GALLERY_INSTALL_DIR)/data/flutter_assets/kernel_blob.bin
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endef
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$(eval $(generic-package))
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