测量所有目标(包括相关目标)的xcodebuild持续时间

我最后写了一个习惯 ruby 修改我的每个目标的脚本 xcodeproj 和 Pods.xcodeproj . 此脚本添加了两个 build phase 将目标名称和当前时间戳记录到输出文件中的。一 构建阶段 首先执行,另一个最后执行。稍后,我只是在一个单独的脚本中从另一个时间戳中减去一个时间戳。

以下是脚本的结果:

输出文件如下所示(排序后)

Alamofire end: 1510929112.3409
Alamofire start: 1510929110.2161
AlamofireImage end: 1510929113.6925
AlamofireImage start: 1510929112.5205

输出文件的路径( /a/ci_automation/metrics/performance-metrics/a.txt 在屏幕截图上)无论如何都不是硬编码的。相反,您将其作为 红宝石 脚本如下:

$ruby prepare-for-target-build-time-profiling.rb ${PWD}/output.txt

注意,此脚本需要 cocoapods 1.3.1 (也许 1.3 ).

这是 红宝石 脚本: ruby prepare-for-target-build-time-profiling.rb

#!/usr/bin/env ruby

require 'xcodeproj'
require 'cocoapods'
require 'fileutils'

def inject_build_time_profiling_build_phases(project_path)
    project = Xcodeproj::Project.open(project_path)

    log_time_before_build_phase_name = '[Prefix placeholder] Log time before build'.freeze
    log_time_after_build_phase_name = '[Prefix placeholder] Log time after build'.freeze

    puts "Patching project at path: #{project_path}"
    puts
    project.targets.each do |target|
        puts "Target: #{target.name}"

        first_build_phase = create_leading_build_phase(target, log_time_before_build_phase_name)
        last_build_phase = create_trailing_build_phase(target, log_time_after_build_phase_name)

        puts
    end

    project.save

    puts "Finished patching project at path: #{project_path}"
    puts
end

def create_leading_build_phase(target, build_phase_name)
    remove_existing_build_phase(target, build_phase_name)

    build_phase = create_build_phase(target, build_phase_name)

    shift_build_phase_leftwards(target, build_phase)

    is_build_phase_leading = true

    inject_shell_code_into_build_phase(target, build_phase, is_build_phase_leading)

    return build_phase
end

def create_trailing_build_phase(target, build_phase_name)
    remove_existing_build_phase(target, build_phase_name)

    build_phase = create_build_phase(target, build_phase_name)

    is_build_phase_leading = false

    inject_shell_code_into_build_phase(target, build_phase, is_build_phase_leading)

    return build_phase
end

def remove_existing_build_phase(target, build_phase_name)
    existing_build_phase = target.shell_script_build_phases.find do |build_phase|
        build_phase.name.end_with?(build_phase_name)
        # We use `end_with` instead of `==`, because `cocoapods` adds its `[CP]` prefix to a `build_phase_name`
    end

    if !existing_build_phase.nil?
        puts "deleting build phase #{existing_build_phase.name}"

        target.build_phases.delete(existing_build_phase)
    end
end

def create_build_phase(target, build_phase_name)
    puts "creating build phase: #{build_phase_name}"

    build_phase = Pod::Installer::UserProjectIntegrator::TargetIntegrator
        .create_or_update_shell_script_build_phase(target, build_phase_name)

    return build_phase
end

def shift_build_phase_leftwards(target, build_phase)
    puts "moving build phase leftwards: #{build_phase.name}"

    target.build_phases.unshift(build_phase).uniq! unless target.build_phases.first == build_phase
end

def inject_shell_code_into_build_phase(target, build_phase, is_build_phase_leading)
    start_or_end = is_build_phase_leading ? "start" : "end"

    build_phase.shell_script = <<-SH.strip_heredoc
        timestamp=`echo "scale=4; $(gdate +%s%N/1000000000)" | bc`
        echo "#{target.name} #{start_or_end}: ${timestamp}" >> #{$build_time_logs_output_file}
    SH
end

def parse_arguments
    $build_time_logs_output_file = ARGV[0]

    if $build_time_logs_output_file.to_s.empty? || ! $build_time_logs_output_file.start_with?("/")
        puts "Error: you should pass a full path to a output file as an script's argument. Example:"
        puts "$ruby prepare-for-target-build-time-profiling.rb /path/to/script/output.txt"
        puts
        exit 1
    end
end

def print_arguments
    puts "Arguments:"
    puts "Output path: #{$build_time_logs_output_file}"
    puts
end

def clean_up_before_script
    if File.exist?($build_time_logs_output_file)
        FileUtils.rm($build_time_logs_output_file)
    end

    build_time_logs_output_folder = File.dirname($build_time_logs_output_file)
    unless File.directory?(build_time_logs_output_folder)
        FileUtils.mkdir_p(build_time_logs_output_folder)
    end
end

def main 
    parse_arguments
    print_arguments
    clean_up_before_script
    inject_build_time_profiling_build_phases("path/to/project.xcodeproj")
    inject_build_time_profiling_build_phases("path/to/pods/project.xcodeproj")
end

# arguments:
$build_time_logs_output_file

main