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Versions: 9
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Contents
# frozen_string_literal: true
module Datadog
module Profiling
module Tasks
# Wraps command with Datadog profiling
class Exec
attr_reader :args
def initialize(args)
@args = args
end
def run
set_rubyopt!
exec_with_error_handling(args)
end
def rubyopts
[
"-rdatadog/profiling/preload"
]
end
private
def set_rubyopt!
existing_rubyopt = ENV["RUBYOPT"]
ENV["RUBYOPT"] = existing_rubyopt ? "#{existing_rubyopt} #{rubyopts.join(" ")}" : rubyopts.join(" ")
end
# If there's an error here, rather than throwing a cryptic stack trace, let's instead have clearer messages, and
# follow the same status codes as the shell uses
# See also:
# * https://www.gnu.org/software/bash/manual/html_node/Exit-Status.html
# * https://github.com/rubygems/rubygems/blob/dd93966cac224532035deda533cba2685dfa30cc/bundler/lib/bundler/cli/exec.rb#L45
def exec_with_error_handling(args)
Kernel.exec(*args)
rescue Errno::ENOENT => e
Kernel.warn "ddprofrb exec failed: #{e.class.name} #{e.message} (command was '#{args.join(" ")}')"
Kernel.exit 127
rescue Errno::EACCES, Errno::ENOEXEC => e
Kernel.warn "ddprofrb exec failed: #{e.class.name} #{e.message} (command was '#{args.join(" ")}')"
Kernel.exit 126
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems