Class: NginxTail::Application
- Inherits:
-
Object
- Object
- NginxTail::Application
- Includes:
- Options
- Defined in:
- lib/ntail/application.rb
Constant Summary collapse
- DEFAULT_OPTIONS =
default application options…
{ :interrupted => false, :running => true, :pattern => :nginx, :output => :ansi, :exit => 0, }
Instance Method Summary collapse
-
#initialize(argv = []) ⇒ Application
constructor
A new instance of Application.
- #method_missing(methodId) ⇒ Object
- #respond_to?(symbol, include_private = false) ⇒ Boolean
- #run! ⇒ Object
Methods included from Options
Constructor Details
#initialize(argv = []) ⇒ Application
Returns a new instance of Application.
29 30 31 |
# File 'lib/ntail/application.rb', line 29 def initialize(argv = []) @options = (argv, DEFAULT_OPTIONS) end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(methodId) ⇒ Object
25 26 27 |
# File 'lib/ntail/application.rb', line 25 def method_missing(methodId) respond_to?(methodId) ? @options.send(methodId.to_sym) : super end |
Instance Method Details
#respond_to?(symbol, include_private = false) ⇒ Boolean
21 22 23 |
# File 'lib/ntail/application.rb', line 21 def respond_to?(symbol, include_private = false) @options.respond_to?(symbol) || super end |
#run! ⇒ Object
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 |
# File 'lib/ntail/application.rb', line 33 def run! LogLine.set_pattern(@options.pattern) LogLine.set_output(@options.output) ['TERM', 'INT'].each do |signal| Signal.trap(signal) do @options.running = false ; @options.interrupted = true $stdin.close if ARGF.file == $stdin # ie. reading from STDIN end end files_read = lines_read = lines_processed = lines_ignored = parsable_lines = unparsable_lines = 0 current_filename = nil ; current_line_number = 0 ; file_count = ARGV.count while @options.running and ARGF.gets if ARGF.file.lineno == 1 current_filename = ARGF.filename ; current_line_number = 0 files_read += 1 if @options.verbose $stderr.puts "[INFO] now processing file #{ARGF.filename}" end end raw_line = $_.chomp ; lines_read += 1 ; current_line_number += 1 unless @options.dry_run if !@options.line_number or @options.line_number == ARGF.lineno begin log_line = NginxTail::LogLine.new(raw_line, current_filename, current_line_number) if log_line.parsable parsable_lines += 1 unless @options.parse_only if !@options.filter || log_line.instance_eval(@options.filter) lines_processed += 1 if @options.code log_line.instance_eval(@options.code) elsif @options.raw $stdout.puts raw_line sleep @options.sleep if @options.sleep else puts log_line.to_s(:color => true) end else lines_ignored += 1 if @options.verbose $stderr.puts "[WARNING] ignoring line ##{lines_read}" end end end else unparsable_lines += 1 if @options.verbose $stderr.puts "[ERROR] cannot parse '#{raw_line}'" end end rescue $stderr.puts "[ERROR] processing line #{ARGF.file.lineno} of file #{ARGF.filename} resulted in #{$!.}" $stderr.puts "[ERROR] " + raw_line @options.exit = -1 @options.running = false raise $! # TODO if the "re-raise exceptions" option has been set... end end end if @options.progress progress_line = [ " Processing file ".inverse + (" %d/%d" % [files_read, file_count]), " Current filename ".inverse + " " + current_filename.to_s, " Line number ".inverse + " " + current_line_number.to_s, " Lines processed ".inverse + " " + lines_read.to_s ].join(" \342\200\242 ") max_length = [max_length || 0, progress_line.size].max $stderr.print progress_line $stderr.print " " * (max_length - progress_line.size) $stderr.print "\r" end end $stderr.puts if @options.progress if @options.verbose $stderr.puts if @options.interrupted $stderr.print "[INFO] read #{lines_read} line(s) in #{files_read} file(s)" $stderr.print " (interrupted)" if @options.interrupted ; $stderr.puts $stderr.puts "[INFO] #{parsable_lines} parsable lines, #{unparsable_lines} unparsable lines" $stderr.puts "[INFO] processed #{lines_processed} lines, ignored #{lines_ignored} lines" end return @options.exit end |