Using Buck to save iOS project build time

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● ● Cmd + Shift + K ● ● ⏲ ● ● $ rm -rf ~/Library/Developer/Xcode/DerivedData ● ● ⏲ ●

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● ● ● //Pods:AppDevKit ● // ● // : ● :

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● ● BUCK

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● ● ● ● $ buck build --config cache.mode=dir //project/somewhere

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● ○ /artifacts/key/{key} ○ /artifacts/key ☁ PUT GET GET

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● .buckconfig ● BUCK

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● [cxx] [swift] [apple]

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[cxx] default_platform = iphonesimulator-x86_64 cflags = -g -fmodules -fobjc-arc cxxflags = -fobjc-arc -std=c++14 combind_preprecess_and_compile = true pch_enabled = false [swift] compiler_flags = -whole-module-optimization use_filelist = true

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[apple] use_swift_delegate = false use_header_maps_in_xcode = false generate_missing_umbrella_headers = true iphonesimulator_target_sdk_version = 11.0 iphoneos_target_sdk_version = 11.0 provisioning_profile_read_command = security cms -Di xctool_default_destination_specifier = platform=iOS Simulator,OS=latest xctool_path = tools/xctool/bin/xctool

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● apple_package apple_bundle apple_binary apple_library apple_resource apple_asset_catalog apple_resource apple_asset_catalog

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● ● ● ● ○ //App: $project_root/App apple_asset_catelog( name = “QCourseAssets”, visibility = [ “//App:”, ], app_icon = “AppIcon”, dirs = [ “Assets.xcassets” ] )

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● ● glob apple_resource( name = “QCourseResource”, visibility = [“ “//App:”, ”], files = glob([“**/*.storyboard”]) )

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● ● srcs ● ● ● apple_binary( name = “QCourseAppBinary”, visibility: [ “//App:”, “//App/...” ], swift_version = “5”, configs = app_binary_config(“QCourse”), srcs = [ “AppDelegate.swift”, “ViewController.swift”, ], deps: [ “:QCourseAppResource”, “:QCourseAssets” ] )

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● ○ IPHONEOS_DEPLOYMENT_TARGET ○ SDKROOT ○ GCC_OPTIMIZATION_LEVEL ○ DEVELOPMENT_LANGUAGE ○ PRODUCT_BUNDLE_IDENTIFIER ○ ...

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● def app_binary_config(name): conifg = { IPHONEOS_DEPLOYMENT_TARGET : “11.0”, PRODUCT_BUNDLE_IDENTIFIER: bundle_identifier(name), ... } # do something return { “Debug”: config, “Profile”: config, “Release”: config }

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● BUCK load(‘utils.bzl’, ‘app_binary_config’) apple_binary( ... conifg = app_binary_config(“QCourse”), ... )

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● srcs ● headers ● bridging_header apple_binary( ... srcs = [ "GeoUtils.m", ], bridging_header = "QCourse-Bridging-Header.h", headers = [ "GeoUtils.h" ], ... )

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● ● info.plist apple_bundle( name = "QCourse", visibility = ["//App:"], extension = "app", binary = ":QCourseAppBinary", product_name = "QCourseApp", info_plist = "Info.plist", info_plist_substitutions = info_plist_substitutions("QCourseApp"), )

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● ● apple_bundle ● apple_package( name = "QCoursePackage", bundle = ":QCourse" )

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BUCK

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● $ buck build //App:QCourse ● $ buck build //App:QCoursePackage ● $ buck install //App:QCourse --run --simulator-name ‘iPhone Xs’ ● /buck-out

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● cache .buckconfig [cache] mode = http http_url = http://buck-cache.i0S.app:9527 cache_mode = readwrite ●

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● ● integerate_targets false ● BUCK platform :ios, '11.0' install! 'cocoapods', integrate_targets: false target 'QCourse' do pod 'AppDevKit/AppDevCommonKit' end

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● apple_libiary() ● modular True ● exported_headers ● srcs ● apple_library( name = “AppDevKit”, visibility = [“PUBLIC”], modular = True, exported_headers = glob([“AppDevKit/**/*.h”]), srcs = glob([“AppDevKit/**/*.m”]), configs = library_configs(), )

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● prebuilt_apple_framework( name = "AFNetworking", framework = "Build/iOS/AFNetworking.framework", preferred_linkage = "shared", visibility = ["PUBLIC"], )

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● BCUK ● BUCK apple_binary( name = “QCourseAppBinary”, deps: [ “:QCourseAppResource”, “:QCourseAssets”, # Pods “//Pods:AppDevKit”, ] )

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● ● apple_bundle( ... test: [ “:QCourseUnitTest”, ]. ) apple_test( name = “QCourseUnitTest”, visibility = [“PUBLIC”], info_plist = “UnitTests/Info.plist”, info_plist_substitutions = { … }, is_ui_test = False, frameworks = [ “$PLATFORM_DIR/Developer/Library/Fram eworks/XCTest.framework" ], srcs = [“UnitTests/QCourseTests.swift”] )

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● ● src_target $ buck project //App:QCourseWorkspace xcode_workspace_config( name = "QCourseWorkspace", workspace_name = "QCourse", src_target = ":QCourse", )