Top Level Namespace
Defined Under Namespace
Modules: ActiveSupport, Appsignal
Classes: AppsignalGenerator
Constant Summary
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- EXT_PATH =
File.expand_path('..', __FILE__)
- AGENT_CONFIG =
YAML.load(File.read(File.join(EXT_PATH, 'agent.yml')))
- ARCH =
"#{Gem::Platform.local.cpu}-#{Gem::Platform.local.os}"
Instance Method Summary
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Instance Method Details
#ext_path(path) ⇒ Object
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# File 'ext/extconf.rb', line 15
def ext_path(path)
File.join(EXT_PATH, path)
end
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#install ⇒ Object
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# File 'ext/extconf.rb', line 30
def install
logger.info "Installing appsignal agent #{Appsignal::VERSION} for Ruby #{RUBY_VERSION} on #{RUBY_PLATFORM}"
unless AGENT_CONFIG['triples'].keys.include?(ARCH)
installation_failed(
"AppSignal currently does not support your system architecture (#{ARCH})." \
"Please let us know at [email protected], we aim to support everything our customers run."
)
return
end
arch_config = AGENT_CONFIG['triples'][ARCH]
unless File.exists?(ext_path('appsignal-agent')) &&
File.exists?(ext_path(arch_config['lib_filename'])) &&
File.exists?(ext_path('appsignal_extension.h'))
logger.info "Downloading agent release from #{arch_config['download_url']}"
archive = open(arch_config['download_url'])
if Digest::SHA256.hexdigest(archive.read) == arch_config['checksum']
logger.info 'Checksum of downloaded archive verified, extracting archive'
else
installation_failed(
"Aborting installation, checksum of downloaded archive could not be verified: " \
"Expected '#{arch_config['checksum']}', got '#{checksum}'."
)
return
end
Gem::Package::TarReader.new(Zlib::GzipReader.open(archive)) do |tar|
tar.each do |entry|
if entry.file?
File.open(ext_path(entry.full_name), 'wb') do |f|
f.write(entry.read)
end
end
end
end
FileUtils.chmod(0755, ext_path('appsignal-agent'))
end
logger.info "Creating makefile"
if find_library('appsignal', 'appsignal_start', EXT_PATH) &&
find_executable('appsignal-agent', EXT_PATH) &&
('appsignal_extension.h', EXT_PATH)
create_makefile 'appsignal_extension'
logger.info 'Successfully installed appsignal extension'
else
installation_failed "Aborting installation, extension files were not present"
end
rescue => ex
installation_failed "Exception while installing: #{ex}"
end
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#installation_failed(reason) ⇒ Object
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# File 'ext/extconf.rb', line 23
def installation_failed(reason)
logger.error "Installation failed: #{reason}"
File.open(File.join(EXT_PATH, 'Makefile'), 'w') do |file|
file.write "default:\nclean:\ninstall:"
end
end
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#logger ⇒ Object
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# File 'ext/extconf.rb', line 19
def logger
@logger ||= Logger.new(File.join(EXT_PATH, 'install.log'))
end
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