2 def __init__(self, args, redirects):
4 self.redirects = list(redirects)
7 return 'Command(%r, %r)' % (self.args, self.redirects)
9 def __cmp__(self, other):
10 if not isinstance(other, Command):
13 return cmp((self.args, self.redirects),
14 (other.args, other.redirects))
16 def toShell(self, file):
20 elif '"' not in arg and '$' not in arg:
23 raise NotImplementedError,'Unable to quote %r' % arg
26 # For debugging / validation.
28 dequoted = list(ShUtil.ShLexer(quoted).lex())
30 raise NotImplementedError,'Unable to quote %r' % arg
32 for r in self.redirects:
34 print >>file, "%s '%s'" % (r[0][0], r[1]),
36 print >>file, "%s%s '%s'" % (r[0][1], r[0][0], r[1]),
39 def __init__(self, commands, negate=False, pipe_err=False):
40 self.commands = commands
42 self.pipe_err = pipe_err
45 return 'Pipeline(%r, %r, %r)' % (self.commands, self.negate,
48 def __cmp__(self, other):
49 if not isinstance(other, Pipeline):
52 return cmp((self.commands, self.negate, self.pipe_err),
53 (other.commands, other.negate, self.pipe_err))
55 def toShell(self, file, pipefail=False):
56 if pipefail != self.pipe_err:
57 raise ValueError,'Inconsistent "pipefail" attribute!'
60 for cmd in self.commands:
62 if cmd is not self.commands[-1]:
66 def __init__(self, lhs, op, rhs):
67 assert op in (';', '&', '||', '&&')
73 return 'Seq(%r, %r, %r)' % (self.lhs, self.op, self.rhs)
75 def __cmp__(self, other):
76 if not isinstance(other, Seq):
79 return cmp((self.lhs, self.op, self.rhs),
80 (other.lhs, other.op, other.rhs))
82 def toShell(self, file, pipefail=False):
83 self.lhs.toShell(file, pipefail)
84 print >>file, ' %s\n' % self.op
85 self.rhs.toShell(file, pipefail)