discourse/lib/plugin.rb

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# frozen_string_literal: true
module Plugin
def self.initialization_guard(&block)
begin
block.call
rescue => error
plugins_directory = Rails.root + "plugins"
if error.backtrace && error.backtrace_locations
plugin_path =
error
.backtrace_locations
.lazy
.map do |location|
Pathname
.new(location.absolute_path)
.ascend
.lazy
.find { |path| path.parent == plugins_directory }
end
.next
raise unless plugin_path
stack_trace =
error
.backtrace
.each_with_index
.inject([]) do |messages, (line, index)|
if index == 0
messages << "#{line}: #{error} (#{error.class})"
else
messages << "\t#{index}: from #{line}"
end
end
.reverse
.join("\n")
STDERR.puts <<~TEXT
#{stack_trace}
** INCOMPATIBLE PLUGIN **
You are unable to build Discourse due to errors in the plugin at
#{plugin_path}
Please try removing this plugin and rebuilding again!
TEXT
else
STDERR.puts <<~TEXT
** PLUGIN FAILURE **
You are unable to build Discourse due to this error during plugin
initialization:
#{error}
#{error.backtrace.join("\n")}
TEXT
end
exit 1
end
end
end