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require "active_support/log_subscriber"
module Dotenv
# Logs instrumented events
#
# Usage:
# require "active_support/notifications"
# require "dotenv/log_subscriber"
# Dotenv.instrumenter = ActiveSupport::Notifications
#
class LogSubscriber < ActiveSupport::LogSubscriber
attach_to :dotenv
def logger
Dotenv::Rails.logger
end
def load(event)
env = event.payload[:env]
info "Loaded #{color_filename(env.filename)}"
end
def update(event)
diff = event.payload[:diff]
changed = diff.env.keys.map { |key| color_var(key) }
debug "Set #{changed.to_sentence}" if diff.any?
end
def save(event)
info "Saved a snapshot of #{color_env_constant}"
end
def restore(event)
diff = event.payload[:diff]
removed = diff.removed.keys.map { |key| color(key, :RED) }
restored = (diff.changed.keys + diff.added.keys).map { |key| color_var(key) }
if removed.any? || restored.any?
info "Restored snapshot of #{color_env_constant}"
debug "Unset #{removed.to_sentence}" if removed.any?
debug "Restored #{restored.to_sentence}" if restored.any?
end
end
private
def color_filename(filename)
color(Pathname.new(filename).relative_path_from(Dotenv::Rails.root.to_s).to_s, :YELLOW)
end
def color_var(name)
color(name, :CYAN)
end
def color_env_constant
color("ENV", :GREEN)
end
end
end
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