Class: Skylight::Core::Config
- Inherits:
-
Object
- Object
- Skylight::Core::Config
show all
- Includes:
- Util::Logging
- Defined in:
- lib/skylight/core/config.rb
Constant Summary
collapse
- MUTEX =
This constant is part of a private API.
You should avoid using this constant if possible, as it may be removed or be changed in the future.
Mutex.new
Instance Attribute Summary collapse
Class Method Summary
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Instance Method Summary
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#config_for_logging, #debug, #error, #fmt, #info, #log, #log_context, #log_env_prefix, #raise_on_error?, #t, #trace, #trace?, #warn
Constructor Details
#initialize(*args) ⇒ Config
This method is part of a private API.
You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns a new instance of Config.
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# File 'lib/skylight/core/config.rb', line 94
def initialize(*args)
attrs = {}
if Hash === args.last
attrs = args.pop.dup
end
@values = {}
@priority = {}
@regexp = nil
@alert_logger = nil
@logger = nil
p = attrs.delete(:priority)
if @environment = args[0]
@regexp = /^#{Regexp.escape(@environment)}\.(.+)$/
end
attrs.each do |k, v|
self[k] = v
end
if p
p.each do |k, v|
@priority[self.class.remap_key(k)] = v
end
end
end
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Instance Attribute Details
#environment ⇒ Object
This method is part of a private API.
You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/skylight/core/config.rb', line 91
def environment
@environment
end
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Class Method Details
.default_values ⇒ Object
Default values for Skylight configuration keys
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# File 'lib/skylight/core/config.rb', line 48
def self.default_values
{
:log_file => '-'.freeze,
:log_level => 'INFO'.freeze,
:alert_log_file => '-'.freeze,
:log_sql_parse_errors => true,
:enable_segments => true,
:enable_sidekiq => false,
:'heroku.dyno_info_path' => '/etc/heroku/dyno'
}
end
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.env_matcher ⇒ Object
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# File 'lib/skylight/core/config.rb', line 20
def self.env_matcher; /^(?:SK|SKYLIGHT)_(.+)$/ end
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.env_prefix ⇒ Object
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# File 'lib/skylight/core/config.rb', line 21
def self.env_prefix; "SKYLIGHT_" end
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.env_to_key ⇒ Object
Map environment variable keys with Skylight configuration keys
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# File 'lib/skylight/core/config.rb', line 24
def self.env_to_key
{
'LOG_FILE' => :log_file,
'LOG_LEVEL' => :log_level,
'ALERT_LOG_FILE' => :alert_log_file,
'LOG_SQL_PARSE_ERRORS' => :log_sql_parse_errors,
'PROXY_URL' => :proxy_url,
"ENABLE_SEGMENTS" => :enable_segments,
"ENABLE_SIDEKIQ" => :enable_sidekiq,
"USER_CONFIG_PATH" => :'user_config_path',
"HEROKU_DYNO_INFO_PATH" => :'heroku.dyno_info_path'
}
end
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.legacy_keys ⇒ Object
Maps legacy config keys to new config keys
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# File 'lib/skylight/core/config.rb', line 80
def self.legacy_keys
{}
end
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.load(opts = {}, env = ENV) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 124
def self.load(opts = {}, env = ENV)
attrs = {}
version = nil
path = opts.delete(:file)
environment = opts.delete(:environment)
if path
error = nil
begin
attrs = YAML.load(ERB.new(File.read(path)).result)
error = "empty file" unless attrs
error = "invalid format" if attrs && !attrs.is_a?(Hash)
rescue Exception => e
error = e.message
end
raise ConfigError, "could not load config file; msg=#{error}" if error
version = File.mtime(path).to_i
end
if env
attrs[:priority] = remap_env(env)
end
config = new(environment, attrs)
opts.each do |k, v|
config[k] = v
end
config
end
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.log_name ⇒ Object
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# File 'lib/skylight/core/config.rb', line 17
def self.log_name; "Skylight" end
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.native_env_keys ⇒ Object
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# File 'lib/skylight/core/config.rb', line 71
def self.native_env_keys
[
:version,
:root,
:proxy_url
]
end
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.remap_env(env) ⇒ Object
This method is part of a private API.
You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/skylight/core/config.rb', line 165
def self.remap_env(env)
ret = {}
return ret unless env
if proxy_url = Util::Proxy.detect_url(env)
ret[:proxy_url] = proxy_url
end
env.each do |k, val|
next unless k =~ env_matcher
if key = env_to_key[$1]
ret[key] =
case val
when /^false$/i then false
when /^true$/i then true
when /^(nil|null)$/i then nil
when /^\d+$/ then val.to_i
when /^\d+\.\d+$/ then val.to_f
else val
end
end
end
ret
end
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.remap_key(key) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 159
def self.remap_key(key)
key = key.to_sym
legacy_keys[key] || key
end
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.required_keys ⇒ Object
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# File 'lib/skylight/core/config.rb', line 60
def self.required_keys
{}
end
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.server_validated_keys ⇒ Object
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# File 'lib/skylight/core/config.rb', line 65
def self.server_validated_keys
[]
end
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.service_name ⇒ Object
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# File 'lib/skylight/core/config.rb', line 18
def self.service_name; log_name end
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.support_email ⇒ Object
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# File 'lib/skylight/core/config.rb', line 19
def self.support_email; "[email protected]" end
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.validators ⇒ Object
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# File 'lib/skylight/core/config.rb', line 85
def self.validators
{}
end
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Instance Method Details
#alert_logger ⇒ Object
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# File 'lib/skylight/core/config.rb', line 388
def alert_logger
@alert_logger ||= MUTEX.synchronize do
unless l = @alert_logger
out = get(:alert_log_file)
out = Util::AlertLogger.new(load_logger) if out == '-'
l = create_logger(out)
l.level = Logger::DEBUG
end
l
end
end
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#alert_logger=(logger) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 402
def alert_logger=(logger)
@alert_logger = logger
end
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#check_file_permissions(file, key) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 215
def check_file_permissions(file, key)
file_root = File.dirname(file)
FileUtils.mkdir_p file_root rescue nil
if File.exist?(file) && !FileTest.writable?(file)
raise ConfigError, "File `#{file}` is not writable. Please set #{key} in your config to a writable path"
end
unless FileTest.writable?(file_root)
raise ConfigError, "Directory `#{file_root}` is not writable. Please set #{key} in your config to a writable path"
end
end
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#check_logfile_permissions(log_file, key) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 230
def check_logfile_permissions(log_file, key)
return if log_file == '-' log_file = File.expand_path(log_file, root)
check_file_permissions(log_file, key)
end
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#duration_ms(key, default = nil) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 295
def duration_ms(key, default = nil)
if (v = self[key]) && v.to_s =~ /^\s*(\d+)(s|sec|ms|micros|nanos)?\s*$/
v = $1.to_i
case $2
when "ms"
v
when "micros"
v / 1_000
when "nanos"
v / 1_000_000
else v * 1000
end
else
default
end
end
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#enable_segments? ⇒ Boolean
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# File 'lib/skylight/core/config.rb', line 406
def enable_segments?
!!get(:enable_segments)
end
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#enable_sidekiq? ⇒ Boolean
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# File 'lib/skylight/core/config.rb', line 410
def enable_sidekiq?
!!get(:enable_sidekiq)
end
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#gc ⇒ Object
This method is part of a private API.
You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/skylight/core/config.rb', line 351
def gc
@gc ||= GC.new(self, get('gc.profiler', VM::GC.new))
end
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#get(key, default = nil, &blk) ⇒ Object
Also known as:
[]
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# File 'lib/skylight/core/config.rb', line 241
def get(key, default = nil, &blk)
key = self.class.remap_key(key)
return @priority[key] if @priority.key?(key)
return @values[key] if @values.key?(key)
return self.class.default_values[key] if self.class.default_values.key?(key)
if default
return default
elsif blk
return blk.call(key)
end
nil
end
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#ignored_endpoints ⇒ Object
This method is part of a private API.
You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/skylight/core/config.rb', line 356
def ignored_endpoints
@ignored_endpoints ||=
begin
ignored_endpoints = get(:ignored_endpoints)
if ignored_endpoints.is_a?(String)
ignored_endpoints = ignored_endpoints.split(/\s*,\s*/)
end
val = Array(get(:ignored_endpoint))
val.concat(Array(ignored_endpoints))
val
end
end
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#key?(key) ⇒ Boolean
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# File 'lib/skylight/core/config.rb', line 236
def key?(key)
key = self.class.remap_key(key)
@priority.key?(key) || @values.key?(key)
end
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#logger ⇒ Object
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# File 'lib/skylight/core/config.rb', line 377
def logger
@logger ||=
MUTEX.synchronize do
load_logger
end
end
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#logger=(logger) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 384
def logger=(logger)
@logger = logger
end
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#on_heroku? ⇒ Boolean
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# File 'lib/skylight/core/config.rb', line 418
def on_heroku?
File.exist?(get(:'heroku.dyno_info_path'))
end
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#root ⇒ Object
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# File 'lib/skylight/core/config.rb', line 373
def root
self[:root] || Dir.pwd
end
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#send_or_get(v) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 291
def send_or_get(v)
respond_to?(v) ? send(v) : get(v)
end
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#set(key, val, scope = nil) ⇒ Object
Also known as:
[]=
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# File 'lib/skylight/core/config.rb', line 259
def set(key, val, scope = nil)
if scope
key = [scope, key].join('.')
end
if Hash === val
val.each do |k, v|
set(k, v, key)
end
else
k = self.class.remap_key(key)
if validator = self.class.validators[k]
blk, msg = validator
unless blk.call(val, self)
error_msg = "invalid value for #{k} (#{val})"
error_msg << ", #{msg}" if msg
raise ConfigError, error_msg
end
end
if @regexp && k =~ @regexp
@priority[$1.to_sym] = val
end
@values[k] = val
end
end
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#to_json ⇒ Object
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# File 'lib/skylight/core/config.rb', line 313
def to_json
JSON.generate(
config: {
priority: @priority,
values: @values
}
)
end
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#to_native_env ⇒ Object
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# File 'lib/skylight/core/config.rb', line 322
def to_native_env
ret = []
self.class.native_env_keys.each do |key|
value = send_or_get(key)
unless value.nil?
env_key = self.class.env_to_key.key(key) || key.upcase
ret << "#{self.class.env_prefix}#{env_key}" << cast_for_env(value)
end
end
ret
end
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#user_config ⇒ Object
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# File 'lib/skylight/core/config.rb', line 414
def user_config
@user_config ||= UserConfig.new(self)
end
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#validate! ⇒ Object
This method is part of a private API.
You should avoid using this method if possible, as it may be removed or be changed in the future.
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# File 'lib/skylight/core/config.rb', line 195
def validate!
self.class.required_keys.each do |k, v|
unless get(k)
raise ConfigError, "#{v} required"
end
end
log_file = self[:log_file]
alert_log_file = self[:alert_log_file]
check_logfile_permissions(log_file, "log_file")
check_logfile_permissions(alert_log_file, "alert_log_file")
true
end
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#validate_with_server ⇒ Object
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# File 'lib/skylight/core/config.rb', line 211
def validate_with_server
true
end
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#version ⇒ Object
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# File 'lib/skylight/core/config.rb', line 346
def version
VERSION
end
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#write(path) ⇒ Object
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# File 'lib/skylight/core/config.rb', line 336
def write(path)
raise "not implemented"
end
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