Class: SolidErrors::BacktraceLine

Inherits:
Object
  • Object
show all
Defined in:
app/models/solid_errors/backtrace_line.rb

Overview

adapted from: github.com/honeybadger-io/honeybadger-ruby/blob/master/lib/honeybadger/backtrace.rb

Constant Summary collapse

INPUT_FORMAT =

Backtrace line regexp (optionally allowing leading X: for windows support).

%r{^((?:[a-zA-Z]:)?[^:]+):(\d+)(?::in [`']([^']+)')?$}
STRING_EMPTY = 
"".freeze
GEM_ROOT = 
"[GEM_ROOT]".freeze
PROJECT_ROOT = 
"[PROJECT_ROOT]".freeze
PROJECT_ROOT_CACHE = 
{}
GEM_ROOT_CACHE = 
{}
RELATIVE_ROOT = 
Regexp.new('^\.\/').freeze
RAILS_ROOT = 
::Rails.root.to_s.dup.freeze
ROOT_REGEXP = 
Regexp.new("^#{Regexp.escape(RAILS_ROOT)}").freeze
BACKTRACE_FILTERS = 
[
  lambda { |line|
    return line unless defined?(Gem)
    GEM_ROOT_CACHE[line] ||= Gem.path.reduce(line) do |line, path|
      line.sub(path, GEM_ROOT)
    end
  },
  lambda { |line|
    c = (PROJECT_ROOT_CACHE[RAILS_ROOT] ||= {})
    return c[line] if c.has_key?(line)
    c[line] ||= line.sub(ROOT_REGEXP, PROJECT_ROOT)
  },
  lambda { |line| line.sub(RELATIVE_ROOT, STRING_EMPTY) }
].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(unparsed_line, file, number, method, filtered_file = file, filtered_number = number, filtered_method = method, source_radius = 2) ⇒ BacktraceLine

Returns a new instance of BacktraceLine.



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# File 'app/models/solid_errors/backtrace_line.rb', line 54

def initialize(unparsed_line, file, number, method, filtered_file = file,
  filtered_number = number, filtered_method = method,
  source_radius = 2)
  self.unparsed_line = unparsed_line
  self.filtered_file = filtered_file
  self.filtered_number = filtered_number
  self.filtered_method = filtered_method
  self.file = file
  self.number = number
  self.method = method
  self.source_radius = source_radius
end

Instance Attribute Details

#file ⇒ Object

Returns the value of attribute file.



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# File 'app/models/solid_errors/backtrace_line.rb', line 29

def file
  @file
end

#filtered_file ⇒ Object

Returns the value of attribute filtered_file.



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# File 'app/models/solid_errors/backtrace_line.rb', line 32

def filtered_file
  @filtered_file
end

#filtered_method ⇒ Object

Returns the value of attribute filtered_method.



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# File 'app/models/solid_errors/backtrace_line.rb', line 32

def filtered_method
  @filtered_method
end

#filtered_number ⇒ Object

Returns the value of attribute filtered_number.



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# File 'app/models/solid_errors/backtrace_line.rb', line 32

def filtered_number
  @filtered_number
end

#method ⇒ Object

Returns the value of attribute method.



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# File 'app/models/solid_errors/backtrace_line.rb', line 31

def method
  @method
end

#number ⇒ Object

Returns the value of attribute number.



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# File 'app/models/solid_errors/backtrace_line.rb', line 30

def number
  @number
end

#unparsed_line ⇒ Object

Returns the value of attribute unparsed_line.



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# File 'app/models/solid_errors/backtrace_line.rb', line 32

def unparsed_line
  @unparsed_line
end

Class Method Details

.parse(unparsed_line, opts = {}) ⇒ Object

Parses a single line of a given backtrace

Parameters:

  • unparsed_line (String) —

    The raw line from caller or some backtrace.

Returns:

  • The parsed backtrace line.



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# File 'app/models/solid_errors/backtrace_line.rb', line 39

def self.parse(unparsed_line, opts = {})
  filtered_line = BACKTRACE_FILTERS.reduce(unparsed_line) do |line, proc|
    proc.call(line)
  end

  if filtered_line
    match = unparsed_line.match(INPUT_FORMAT) || [].freeze
    fmatch = filtered_line.match(INPUT_FORMAT) || [].freeze

    file, number, method = match[1], match[2], match[3]
    filtered_args = [fmatch[1], fmatch[2], fmatch[3]]
    new(unparsed_line, file, number, method, *filtered_args, opts.fetch(:source_radius, 2))
  end
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'app/models/solid_errors/backtrace_line.rb', line 72

def ==(other)
  to_s == other.to_s
end

#application? ⇒ Boolean

Determines if this line is part of the application trace or not.

Returns:

  • (Boolean) 


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# File 'app/models/solid_errors/backtrace_line.rb', line 81

def application?
  (filtered_file =~ /^\[PROJECT_ROOT\]/i) && !(filtered_file =~ /^\[PROJECT_ROOT\]\/vendor/i)
end

#inspect ⇒ Object 



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# File 'app/models/solid_errors/backtrace_line.rb', line 76

def inspect
  "<Line:#{self}>"
end

#source ⇒ Object 



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# File 'app/models/solid_errors/backtrace_line.rb', line 85

def source
  @source ||= get_source(file, number, source_radius)
end

#to_s ⇒ Object

Reconstructs the line in a readable fashion.



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# File 'app/models/solid_errors/backtrace_line.rb', line 68

def to_s
  "#{filtered_file}:#{filtered_number}:in `#{filtered_method}'"
end