Add bin and edit workflow

bin/gems/jekyll_plugin_logger-2.1.2/lib/jekyll_plugin_logger.rb

@@ -0,0 +1,152 @@
+require 'colorator'
+require 'logger'
+require 'yaml'
+require_relative 'jekyll_plugin_logger/version'
+require_relative 'jekyll_plugin_meta_logger'
+
+module JekyllPluginLoggerName
+  PLUGIN_NAME = 'jekyll_plugin_logger'.freeze
+end
+
+# Once the meta-logger is made (see `PluginMetaLogger`, below) new instances of `PluginLogger` can be created with log levels set
+# by `config` entries.
+# @example Create new `PluginLogger`s like this:
+#   @logger = PluginMetaLogger.instance.new_logger(self, PluginMetaLogger.instance.config)
+#
+# self can be a module, a class, a string, or a symbol.
+#
+# Best practice is to invoke `info`, `warn, `debug` and `error` methods by passing blocks that contain the message.
+# The blocks will only be evaluated if output for that level is enabled.
+# @example Use `PluginLogger`s like this:
+#   @logger.info { "This is only evaluated if info level debugging is enabled" }
+#
+# For more information about the logging feature in the Ruby standard library,
+# @see https://ruby-doc.org/stdlib-2.7.1/libdoc/logger/rdoc/Logger.html
+class PluginLogger
+  # This method should only be called by PluginMetaLogger
+  # @param log_level [String, Symbol, Integer] can be specified as $stderr or $stdout,
+  #   or an integer from 0..3 (inclusive),
+  #   or as a case-insensitive string
+  #   (`debug`, `info`, `warn`, `error`, or `DEBUG`, `INFO`, `WARN`, `ERROR`),
+  #   or as a symbol (`:debug`, `:info`, `:warn`, `:error` ).
+  #
+  # 0: debug
+  # 1: info
+  # 2: warn
+  # 3: error
+  # 4: fatal
+  # 5: unknown (displays as ANY)
+  #
+  # @param config [YAML] is normally created by reading a YAML file such as Jekyll's `_config.yml`.
+  #   When invoking from a Jekyll plugin, provide `site.config`,
+  #   which is available from all types of Jekyll plugins as `Jekyll.configuration({})`.
+  #
+  # @example  If `progname` has value `abc`, then the YAML to override the programmatically set log_level to `debug` is:
+  #   logger_factory:
+  #     abc: debug
+  def initialize(klass, config = nil, stream_name = $stdout)
+    @config = config
+    plugin_loggers = config&.[] 'plugin_loggers'
+
+    @logger = Logger.new stream_name
+    @logger.progname = derive_progname klass
+    @logger.level = :info
+    @logger.level = plugin_loggers[@logger.progname] if plugin_loggers&.[] @logger.progname
+    # puts "PluginLogger.initialize: @logger.progname=#{@logger.progname} set to #{@logger.level}".red
+    @logger.formatter = proc { |severity, _datetime, progname, msg|
+      "#{severity} #{progname}: #{msg}\n"
+    }
+  end
+
+  def debug(progname = nil, &block)
+    if block
+      @logger.debug(@logger.progname) { (yield block).to_s.magenta }
+    else
+      @logger.debug(@logger.progname) { progname.to_s.magenta }
+    end
+  end
+
+  def info(progname = nil, &block)
+    if block
+      @logger.info(@logger.progname) { (yield block).to_s.cyan }
+    else
+      @logger.info(@logger.progname) { progname.to_s.cyan }
+    end
+  end
+
+  def level=(value)
+    @logger.level = value
+  end
+
+  # @return the log level specified in _config.yml, or :info (1) if not specified
+  def level
+    @logger.level
+  end
+
+  def progname=(value)
+    @logger.progname = value
+  end
+
+  def progname
+    @logger.progname
+  end
+
+  def warn(progname = nil, &block)
+    if block
+      @logger.warn(@logger.progname) { (yield block).to_s.yellow }
+    else
+      @logger.warn(@logger.progname) { progname.to_s.yellow }
+    end
+  end
+
+  def error(progname = nil, &block)
+    if block
+      @logger.error(@logger.progname) { (yield block).to_s.red }
+    else
+      @logger.error(@logger.progname) { progname.to_s.red }
+    end
+  end
+
+  def fatal(progname = nil, &block)
+    if block
+      @logger.fatal(@logger.progname) { (yield block).to_s.red.bold }
+    else
+      @logger.fatal(@logger.progname) { progname.to_s.red.bold }
+    end
+  end
+
+  # @return the log level specified in _config.yml, or :info (1) if not specified
+  # Available colors are: :black, :red, :green, :yellow, :blue, :magenta, :cyan, :white, and the modifier :bold
+  def level_as_sym
+    return :unknown if @logger.level.negative? || level > 4
+
+    %i[debug info warn error fatal unknown][@logger.level]
+  end
+
+  def unknown(progname = nil, &block)
+    if block
+      @logger.unknown(@logger.progname) { (yield block).to_s.green }
+    else
+      @logger.unknown(@logger.progname) { progname.to_s.green }
+    end
+  end
+
+  private
+
+  def derive_progname(klass)
+    class_name = klass.class.to_s
+    case class_name
+    when 'Class', 'Module', 'Symbol', 'String'
+      klass.to_s.split('::').last
+    else
+      class_name
+    end
+  end
+end
+
+Jekyll::Hooks.register(:site, :after_reset, priority: :high) do |site|
+  instance = PluginMetaLogger.instance
+  logger = instance.new_logger(PluginMetaLogger, site.config)
+  logger.info { "Loaded #{JekyllPluginLoggerName::PLUGIN_NAME} v#{JekyllPluginLoggerVersion::VERSION} plugin." }
+  logger.debug { "Logger for #{instance.logger.progname} created at level #{instance.level_as_sym}" }
+end