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1# This file controls Flutter-level build steps. It should not be edited.
2cmake_minimum_required(VERSION 3.10)
3
4set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
5
6# Configuration provided via flutter tool.
7include(${EPHEMERAL_DIR}/generated_config.cmake)
8
9# TODO: Move the rest of this into files in ephemeral. See
10# https://github.com/flutter/flutter/issues/57146.
11
12# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
13# which isn't available in 3.10.
14function(list_prepend LIST_NAME PREFIX)
15 set(NEW_LIST "")
16 foreach(element ${${LIST_NAME}})
17 list(APPEND NEW_LIST "${PREFIX}${element}")
18 endforeach(element)
19 set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
20endfunction()
21
22# === Flutter Library ===
23# System-level dependencies.
24find_package(PkgConfig REQUIRED)
25pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
26pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
27pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
28
29set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
30
31# Published to parent scope for install step.
32set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
33set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
34set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
35set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
36
37list(APPEND FLUTTER_LIBRARY_HEADERS
38 "fl_basic_message_channel.h"
39 "fl_binary_codec.h"
40 "fl_binary_messenger.h"
41 "fl_dart_project.h"
42 "fl_engine.h"
43 "fl_json_message_codec.h"
44 "fl_json_method_codec.h"
45 "fl_message_codec.h"
46 "fl_method_call.h"
47 "fl_method_channel.h"
48 "fl_method_codec.h"
49 "fl_method_response.h"
50 "fl_plugin_registrar.h"
51 "fl_plugin_registry.h"
52 "fl_standard_message_codec.h"
53 "fl_standard_method_codec.h"
54 "fl_string_codec.h"
55 "fl_value.h"
56 "fl_view.h"
57 "flutter_linux.h"
58)
59list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
60add_library(flutter INTERFACE)
61target_include_directories(flutter INTERFACE
62 "${EPHEMERAL_DIR}"
63)
64target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
65target_link_libraries(flutter INTERFACE
66 PkgConfig::GTK
67 PkgConfig::GLIB
68 PkgConfig::GIO
69)
70add_dependencies(flutter flutter_assemble)
71
72# === Flutter tool backend ===
73# _phony_ is a non-existent file to force this command to run every time,
74# since currently there's no way to get a full input/output list from the
75# flutter tool.
76add_custom_command(
77 OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
78 ${CMAKE_CURRENT_BINARY_DIR}/_phony_
79 COMMAND ${CMAKE_COMMAND} -E env
80 ${FLUTTER_TOOL_ENVIRONMENT}
81 "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
82 ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
83 VERBATIM
84)
85add_custom_target(flutter_assemble DEPENDS
86 "${FLUTTER_LIBRARY}"
87 ${FLUTTER_LIBRARY_HEADERS}
88)