Class: Dev::SystemCall

Inherits:
Object
  • Object
show all
Defined in:
lib/dev/SystemCall.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cmd) ⇒ SystemCall

Returns a new instance of SystemCall.



12
13
14
15
16
17
18
19
20
21
 
# File 'lib/dev/SystemCall.rb', line 12

def initialize(cmd)
  if(cmd.kind_of?(Hash))
    set_hash(cmd)
  else
    hash=Dev::Environment.s_to_hash(cmd)
    set_hash(hash) unless hash.nil?
    @command=cmd if hash.nil?
  end
  execute(@command);
end

Instance Attribute Details

#cache ⇒ Object

Returns the value of attribute cache.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def cache
  @cache
end

#capture_error ⇒ Object

Returns the value of attribute capture_error.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def capture_error
  @capture_error
end

#capture_output ⇒ Object

Returns the value of attribute capture_output.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def capture_output
  @capture_output
end

#command ⇒ Object

Returns the value of attribute command.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def command
  @command
end

#dir ⇒ Object

Returns the value of attribute dir.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def dir
  @dir
end

#end_time ⇒ Object

Returns the value of attribute end_time.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def end_time
  @end_time
end

#error ⇒ Object

Returns the value of attribute error.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def error
  @error
end

#output ⇒ Object

Returns the value of attribute output.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def output
  @output
end

#start_time ⇒ Object

Returns the value of attribute start_time.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def start_time
  @start_time
end

#status ⇒ Object

Returns the value of attribute status.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def status
  @status
end

#timed_out ⇒ Object

Returns the value of attribute timed_out.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def timed_out
  @timed_out
end

#timeout ⇒ Object

Returns the value of attribute timeout.



10
11
12
 
# File 'lib/dev/SystemCall.rb', line 10

def timeout
  @timeout
end

Class Method Details

.clean_tmp_files ⇒ Object 



172
173
174
175
176
177
178
179
180
181
 
# File 'lib/dev/SystemCall.rb', line 172

def self.clean_tmp_files
  puts "clean temporary files in #{Dir.tmpdir}"
  Dir.glob("#{Dir.tmpdir}/*.{out,err}").each{ |f|
 begin
   FileUtils.rm(f)
 rescue
   warn "unable to remove file #{f}.err"
 end
  }
end

.puts_hash_summary(h) ⇒ Object 



203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
 
# File 'lib/dev/SystemCall.rb', line 203

def self.puts_hash_summary(h)
  if(h[:status] != 0 && h[:status] != "0")
    summary =  "  [".foreground(:cyan) + "X".foreground(:red).bright + "]".foreground(:cyan) + " " + h[:cmd].foreground(:green) + " has exit status of " + h[:status].to_s
    summary += " dir: " + h[:dir] unless h[:dir].nil?
    puts summary
    puts h[:output] if !h[:output].nil?
    warn h[:error] if !h[:error].nil?
    throw "exit status was " + h[:status].to_s
  else
    elapsed_str="[" + "%.0f" %(h[:elapsed]) + "s]"
    summary = "  [".foreground(:cyan) + "+".foreground(:green) + "]".foreground(:cyan) + " " + h[:cmd].foreground(:green) + " " + elapsed_str.foreground(:cyan) 
    summary += " dir: " + h[:dir] unless h[:dir].nil?
    puts summary
  end
end

Instance Method Details

#cache_name ⇒ Object 



25
26
27
28
29
 
# File 'lib/dev/SystemCall.rb', line 25

def cache_name
  name = @dir+"/" + @command.gsub(" ","_").gsub("\\","-").gsub("/","-") unless @dir.nil?
  name = @command.gsub(" ","_").gsub("\\","-").gsub("/","-") if @dir.nil?
  return name
end

#elapsed ⇒ Object 



23
 
# File 'lib/dev/SystemCall.rb', line 23

def elapsed; @end_time-@start_time; end

#execute(cmd) ⇒ Object 



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
 
# File 'lib/dev/SystemCall.rb', line 82

def execute(cmd) 
  if !@cache.nil? && has_cache
    load_cache
    return
  end

  pwd=Dir.pwd
  @start_time=Time.now
  begin
      capture_output=true if capture_output.nil?
      capture_output=false if capture_output == "false"
      capture_error=true if capture_error.nil?
      capture_error=false unless capture_output
      capture_error=false if capture_error == "false"
puts_debug "system2('#{@dir}','#{@command}',#{@capture_output.to_s},#{@capture_error.to_s})  (in SystemCall.execute)"
      @status,@output,@error=system2(@dir,@command,@capture_output,@capture_error)
#puts_debug "system2 call complete"

      @end_time=Time.now
  rescue Exception=>e
      puts "error executing ruby code: #{@command}" 
warn "exception:"
warn e.to_s
      @status="1"
      @end_time=Time.now
  ensure
      Dir.chdir(pwd) if Dir.pwd != pwd
      write_cache if !@cache.nil?
  end
end

#get_hash ⇒ Object 



35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/dev/SystemCall.rb', line 35

def get_hash
  hash = Hash.new()
  hash[:cmd]=@command
  hash[:dir]=@dir
  hash[:output]=@output
  hash[:error]=@error
  hash[:status]=@status
  hash[:start_time]=@start_time
  hash[:end_time]=@end_time
  hash[:elapsed]=elapsed.to_s
  hash[:time_out]=@time_out
  hash[:timeout]=@timeout
  hash[:cache]=@cache
  hash[:capture_output]=@capture_output
  hash[:capture_error]=@capture_error
  return hash
end

#has_cache ⇒ Object 



31
32
33
 
# File 'lib/dev/SystemCall.rb', line 31

def has_cache
  File.exist?(cache_name)
end

#load_cache ⇒ Object 



75
76
77
78
79
80
 
# File 'lib/dev/SystemCall.rb', line 75

def load_cache
  file=File.open(cache_name,'rb')
  hash = Marshal.load file.read
  file.close
  set_hash hash
end

#puts_summary ⇒ Object 



183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
 
# File 'lib/dev/SystemCall.rb', line 183

def puts_summary
  if(@status != 0)
    summary =  "  [".foreground(:cyan) + "X".foreground(:red).bright + "]".foreground(:cyan) + " " + @command.foreground(:green) + " has exit status of " + @status.to_s
    summary += " dir: " + @dir unless @dir.nil?
    summary += " cache: true" unless @cache.nil?
    summary += " capture_output: false" unless @capture_output.nil? || @capture_output
    puts summary
    puts @output if !@output.nil?
    warn @error if !@error.nil?
    throw "exit status was " + @status.to_s
  else
    elapsed_str="[" + "%.0f" %(elapsed) + "s]"
    summary = "  [".foreground(:cyan) + "+".foreground(:green) + "]".foreground(:cyan) + " " + @command.foreground(:green) + " " + elapsed_str.foreground(:cyan) 
    summary += " dir: " + @dir unless @dir.nil?
    summary += " cache: true" unless @cache.nil?
    summary += " capture_output: false" unless @capture_output.nil? || @capture_output
    puts summary
  end
end

#set_hash(hash) ⇒ Object 



53
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/dev/SystemCall.rb', line 53

def set_hash(hash)
  @command=hash[:cmd] unless hash[:cmd].nil?
  @dir=hash[:dir] unless hash[:dir].nil?
  @output=hash[:output] unless hash[:output].nil?
  @error=hash[:error] unless hash[:error].nil?
  @status=hash[:status] unless hash[:status].nil?
  @start_time=hash[:start_time] unless hash[:start_time].nil?
  @end_time=hash[:end_time] unless hash[:end_time].nil?
  @time_out=hash[:timeout] unless hash[:timeout].nil?
  @timed_out=hash[:timed_out] unless hash[:timed_out].nil?
  @cache=hash[:cache] unless hash[:cache].nil?
  @capture_output=hash[:capture_output] unless hash[:capture_output].nil?
  @capture_error=hash[:capture_error] unless hash[:capture_error].nil?
end

#system2(working_dir, command, capture_output, capture_error) ⇒ Object 



112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
 
# File 'lib/dev/SystemCall.rb', line 112

def system2(working_dir,command,capture_output,capture_error)
  capture_output=true if capture_output.nil?
  capture_output=false if capture_output == "false"
  capture_error=true if capture_error.nil?
  capture_error=false unless capture_output
  capture_error=false if capture_error == "false"
      
  filename=Dir.tmpdir + "/" + (0...2).map{65.+(rand(25)).chr}.join
  filename=Dir.tmpdir + "/" + (0...2).map{65.+(rand(25)).chr}.join if File.exist? "#{filename}.out"
  working_dir = Dir.pwd if working_dir.nil? || working_dir.empty?
  status=0
  output=""
  error=""

  FileUtils.rm("#{filename}.out") if File.exist? "#{filename}.out"
  FileUtils.rm("#{filename}.err") if File.exist? "#{filename}.err"

  Dir.chdir(working_dir) do
    if(capture_output)
      if(capture_error)
        system("#{@command} >#{filename}.out 2>#{filename}.err")
      else
        system("#{@command} >#{filename}.out")
      end
    else
      if(capture_error)
        system("#{@command} 2>#{filename}.err")
      else
        system(@command)
      end
    end
  end
    
  if(File.exist?("#{filename}.out"))
    File.open("#{filename}.out",'r') {|f|
   output = f.read
   f.close
    }
 begin
   FileUtils.rm("#{filename}.out")
 rescue
   warn "unable to remove file #{filename}.out"
 end
  end
  if(File.exist?("#{filename}.err"))
    File.open("#{filename}.err",'r') {|f|
   error = f.read
   f.close
    }
 begin
   FileUtils.rm("#{filename}.err")
 rescue
   warn "unable to remove file #{filename}.err"
 end
  end
  
  status=$?.exitstatus 
  return status,output,error
end

#write_cache ⇒ Object 



68
69
70
71
72
73
 
# File 'lib/dev/SystemCall.rb', line 68

def write_cache
  marshal_dump = Marshal.dump(get_hash)
  file=File.new(cache_name,'wb')
  file.write marshal_dump
  file.close
end