29
30
31
32
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
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
|
# File 'lib/rbbt/util/cmd.rb', line 29
def self.cmd(cmd, options = {}, &block)
options = Misc.add_defaults options, :stderr => Log::DEBUG
in_content = options.delete(:in)
stderr = options.delete(:stderr)
pipe = options.delete(:pipe)
post = options.delete(:post)
log = options.delete(:log)
no_fail = options.delete(:no_fail)
no_wait = options.delete(:no_wait)
dont_close_in = options.delete(:dont_close_in)
log = true if log.nil?
if stderr == true
stderr = Log::HIGH
end
cmd_options = process_cmd_options options
if cmd =~ /'\{opt\}'/
cmd.sub!('\'{opt}\'', cmd_options)
else
cmd << " " << cmd_options
end
in_content = StringIO.new in_content if String === in_content
sout, serr, sin = Misc.pipe, Misc.pipe, Misc.pipe
pid = fork {
begin
Misc.purge_pipes(sin.last,sout.last,serr.last)
sin.last.close
sout.first.close
serr.first.close
if IO === in_content
in_content.close if in_content.respond_to?(:close) and not in_content.closed?
in_content.join if in_content.respond_to?(:join) and not in_content.joined?
end
STDERR.reopen serr.last
serr.last.close
STDIN.reopen sin.first
sin.first.close
STDOUT.reopen sout.last
sout.last.close
STDOUT.sync = STDERR.sync = true
exec(ENV, cmd)
exit(-1)
rescue Exception
Log.debug{ "ProcessFailed: #{$!.message}" } if log
Log.debug{ "Backtrace: \n" + $!.backtrace * "\n" } if log
raise ProcessFailed, $!.message
end
}
sin.first.close
sout.last.close
serr.last.close
sin = sin.last
sout = sout.first
serr = serr.first
Log.debug{"CMD: [#{pid}] #{cmd}" if log}
if in_content.respond_to?(:read)
in_thread = Thread.new(Thread.current) do |parent|
begin
begin
while c = in_content.readpartial(Misc::BLOCK_SIZE)
sin << c
end
rescue EOFError
end
sin.close unless sin.closed?
unless dont_close_in
in_content.close unless in_content.closed?
in_content.join if in_content.respond_to? :join
end
rescue
parent.raise $!
Process.kill "INT", pid
ensure
sin.close unless sin.closed?
end
end
else
in_thread = nil
sin.close
end
pids = [pid]
if pipe
err_thread = Thread.new do
while line = serr.gets
Log.log "STDERRĀ [#{pid}]: " + line, stderr if Integer === stderr and log
end
serr.close
end
ConcurrentStream.setup sout, :pids => pids, :threads => [in_thread, err_thread].compact, :autojoin => no_wait, :no_fail => no_fail
sout
else
err = ""
err_thread = Thread.new do
while not serr.eof?
err << serr.gets if Integer === stderr
end
serr.close
end
ConcurrentStream.setup sout, :pids => pids, :threads => [in_thread, err_thread].compact, :autojoin => no_wait, :no_fail => no_fail
out = StringIO.new sout.read
sout.close unless sout.closed?
Process.waitpid pid
if not $?.success? and not no_fail
raise ProcessFailed.new "Command [#{pid}] #{cmd} failed with error status #{$?.exitstatus}.\n#{err}"
else
Log.log err, stderr if Integer === stderr and log
end
out
end
end
|