rev |
line source |
bos@67
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1 #!/usr/bin/env python
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bos@4
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2 #
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bos@4
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3 # This program takes something that resembles a shell script and runs
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bos@4
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4 # it, spitting input (commands from the script) and output into text
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bos@4
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5 # files, for use in examples.
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bos@3
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6
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bos@3
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7 import cStringIO
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bos@73
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8 import errno
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bos@78
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9 import getopt
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bos@3
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10 import os
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bos@3
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11 import pty
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bos@3
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12 import re
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bos@79
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13 import select
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bos@4
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14 import shutil
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bos@6
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15 import signal
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bos@36
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16 import stat
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bos@3
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17 import sys
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bos@4
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18 import tempfile
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bos@4
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19 import time
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bos@3
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20
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bos@77
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21 tex_subs = {
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bos@77
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22 '\\': '\\textbackslash{}',
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bos@77
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23 '{': '\\{',
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bos@77
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24 '}': '\\}',
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bos@77
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25 }
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bos@77
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26
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bos@77
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27 def gensubs(s):
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bos@77
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28 start = 0
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bos@77
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29 for i, c in enumerate(s):
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bos@77
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30 sub = tex_subs.get(c)
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bos@77
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31 if sub:
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bos@77
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32 yield s[start:i]
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bos@77
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33 start = i + 1
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bos@77
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34 yield sub
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bos@77
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35 yield s[start:]
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bos@77
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36
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bos@4
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37 def tex_escape(s):
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bos@77
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38 return ''.join(gensubs(s))
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bos@4
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39
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bos@137
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40 def maybe_unlink(name):
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bos@137
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41 try:
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bos@137
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42 os.unlink(name)
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bos@137
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43 return True
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bos@137
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44 except OSError, err:
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bos@137
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45 if err.errno != errno.ENOENT:
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bos@137
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46 raise
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bos@137
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47 return False
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bos@137
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48
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bos@172
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49 def find_path_to(program):
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bos@172
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50 for p in os.environ.get('PATH', os.defpath).split(os.pathsep):
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bos@172
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51 name = os.path.join(p, program)
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bos@172
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52 if os.access(name, os.X_OK):
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bos@172
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53 return p
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bos@172
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54 return None
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bos@172
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55
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bos@3
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56 class example:
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bos@70
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57 shell = '/usr/bin/env bash'
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bos@103
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58 ps1 = '__run_example_ps1__ '
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bos@103
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59 ps2 = '__run_example_ps2__ '
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bos@168
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60 pi_re = re.compile(r'#\$\s*(name|ignore):\s*(.*)$')
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bos@4
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61
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bos@192
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62 timeout = 10
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bos@79
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63
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bos@78
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64 def __init__(self, name, verbose):
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bos@3
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65 self.name = name
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bos@78
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66 self.verbose = verbose
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bos@79
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67 self.poll = select.poll()
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bos@3
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68
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bos@3
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69 def parse(self):
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bos@4
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70 '''yield each hunk of input from the file.'''
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bos@3
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71 fp = open(self.name)
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bos@3
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72 cfp = cStringIO.StringIO()
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bos@3
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73 for line in fp:
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bos@3
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74 cfp.write(line)
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bos@3
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75 if not line.rstrip().endswith('\\'):
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bos@3
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76 yield cfp.getvalue()
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bos@3
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77 cfp.seek(0)
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bos@3
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78 cfp.truncate()
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bos@3
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79
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bos@3
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80 def status(self, s):
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bos@3
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81 sys.stdout.write(s)
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bos@3
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82 if not s.endswith('\n'):
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bos@3
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83 sys.stdout.flush()
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bos@3
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84
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bos@6
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85 def send(self, s):
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bos@78
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86 if self.verbose:
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bos@78
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87 print >> sys.stderr, '>', self.debugrepr(s)
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bos@73
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88 while s:
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bos@73
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89 count = os.write(self.cfd, s)
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bos@73
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90 s = s[count:]
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bos@6
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91
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bos@78
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92 def debugrepr(self, s):
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bos@78
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93 rs = repr(s)
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bos@78
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94 limit = 60
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bos@78
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95 if len(rs) > limit:
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bos@78
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96 return ('%s%s ... [%d bytes]' % (rs[:limit], rs[0], len(s)))
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bos@78
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97 else:
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bos@78
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98 return rs
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bos@78
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99
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bos@79
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100 timeout = 5
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bos@79
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101
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bos@173
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102 def read(self, hint):
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bos@79
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103 events = self.poll.poll(self.timeout * 1000)
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bos@79
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104 if not events:
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bos@173
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105 print >> sys.stderr, ('[%stimed out after %d seconds]' %
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bos@173
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106 (hint, self.timeout))
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bos@79
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107 os.kill(self.pid, signal.SIGHUP)
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bos@79
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108 return ''
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bos@79
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109 return os.read(self.cfd, 1024)
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bos@79
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110
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bos@173
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111 def receive(self, hint):
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bos@6
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112 out = cStringIO.StringIO()
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bos@4
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113 while True:
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bos@73
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114 try:
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bos@78
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115 if self.verbose:
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bos@78
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116 sys.stderr.write('< ')
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bos@173
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117 s = self.read(hint)
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bos@73
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118 except OSError, err:
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bos@73
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119 if err.errno == errno.EIO:
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bos@103
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120 return '', ''
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bos@73
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121 raise
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bos@78
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122 if self.verbose:
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bos@78
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123 print >> sys.stderr, self.debugrepr(s)
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bos@6
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124 out.write(s)
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bos@73
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125 s = out.getvalue()
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bos@103
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126 if s.endswith(self.ps1):
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bos@103
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127 return self.ps1, s.replace('\r\n', '\n')[:-len(self.ps1)]
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bos@103
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128 if s.endswith(self.ps2):
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bos@103
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129 return self.ps2, s.replace('\r\n', '\n')[:-len(self.ps2)]
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bos@4
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130
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bos@173
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131 def sendreceive(self, s, hint):
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bos@6
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132 self.send(s)
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bos@173
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133 ps, r = self.receive(hint)
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bos@6
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134 if r.startswith(s):
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bos@6
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135 r = r[len(s):]
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bos@103
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136 return ps, r
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bos@6
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137
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bos@3
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138 def run(self):
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bos@3
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139 ofp = None
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bos@4
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140 basename = os.path.basename(self.name)
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bos@4
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141 self.status('running %s ' % basename)
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bos@4
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142 tmpdir = tempfile.mkdtemp(prefix=basename)
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bos@78
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143
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bos@136
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144 # remove the marker file that we tell make to use to see if
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bos@136
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145 # this run succeeded
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bos@137
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146 maybe_unlink(self.name + '.run')
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bos@136
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147
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bos@78
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148 rcfile = os.path.join(tmpdir, '.hgrc')
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bos@78
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149 rcfp = open(rcfile, 'w')
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bos@78
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150 print >> rcfp, '[ui]'
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bos@78
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151 print >> rcfp, "username = Bryan O'Sullivan <bos@serpentine.com>"
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bos@78
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152
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bos@6
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153 rcfile = os.path.join(tmpdir, '.bashrc')
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bos@6
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154 rcfp = open(rcfile, 'w')
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bos@103
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155 print >> rcfp, 'PS1="%s"' % self.ps1
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bos@103
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156 print >> rcfp, 'PS2="%s"' % self.ps2
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bos@6
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157 print >> rcfp, 'unset HISTFILE'
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bos@172
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158 path = ['/usr/bin', '/bin']
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bos@172
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159 hg = find_path_to('hg')
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bos@172
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160 if hg and hg not in path:
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bos@172
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161 path.append(hg)
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bos@172
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162 def re_export(envar):
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bos@172
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163 v = os.getenv(envar)
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bos@172
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164 if v is not None:
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bos@172
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165 print >> rcfp, 'export ' + envar + '=' + v
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bos@172
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166 print >> rcfp, 'export PATH=' + ':'.join(path)
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bos@172
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167 re_export('PYTHONPATH')
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bos@19
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168 print >> rcfp, 'export EXAMPLE_DIR="%s"' % os.getcwd()
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bos@124
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169 print >> rcfp, 'export HGMERGE=merge'
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bos@6
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170 print >> rcfp, 'export LANG=C'
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bos@6
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171 print >> rcfp, 'export LC_ALL=C'
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bos@6
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172 print >> rcfp, 'export TZ=GMT'
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bos@6
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173 print >> rcfp, 'export HGRC="%s/.hgrc"' % tmpdir
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bos@6
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174 print >> rcfp, 'export HGRCPATH=$HGRC'
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bos@6
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175 print >> rcfp, 'cd %s' % tmpdir
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bos@6
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176 rcfp.close()
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bos@68
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177 sys.stdout.flush()
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bos@68
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178 sys.stderr.flush()
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bos@79
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179 self.pid, self.cfd = pty.fork()
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bos@79
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180 if self.pid == 0:
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bos@172
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181 cmdline = ['/usr/bin/env', '-i', 'bash', '--noediting',
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bos@172
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182 '--noprofile', '--norc']
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bos@68
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183 try:
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bos@68
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184 os.execv(cmdline[0], cmdline)
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bos@68
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185 except OSError, err:
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bos@68
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186 print >> sys.stderr, '%s: %s' % (cmdline[0], err.strerror)
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bos@68
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187 sys.stderr.flush()
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bos@68
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188 os._exit(0)
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bos@79
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189 self.poll.register(self.cfd, select.POLLIN | select.POLLERR |
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bos@79
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190 select.POLLHUP)
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bos@103
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191
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bos@103
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192 prompts = {
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bos@103
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193 '': '',
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bos@103
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194 self.ps1: '$',
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bos@103
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195 self.ps2: '>',
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bos@103
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196 }
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bos@103
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197
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bos@137
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198 ignore = [
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bos@137
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199 r'\d+:[0-9a-f]{12}', # changeset number:hash
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bos@141
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200 r'[0-9a-f]{40}', # long changeset hash
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bos@141
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201 r'[0-9a-f]{12}', # short changeset hash
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bos@137
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202 r'^(?:---|\+\+\+) .*', # diff header with dates
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bos@137
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203 r'^date:.*', # date
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bos@141
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204 #r'^diff -r.*', # "diff -r" is followed by hash
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bos@138
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205 r'^# Date \d+ \d+', # hg patch header
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bos@137
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206 ]
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bos@137
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207
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bos@138
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208 err = False
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bos@173
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209 read_hint = ''
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bos@138
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210
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bos@4
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211 try:
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bos@71
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212 try:
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bos@73
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213 # eat first prompt string from shell
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bos@173
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214 self.read(read_hint)
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bos@71
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215 # setup env and prompt
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bos@173
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216 ps, output = self.sendreceive('source %s\n' % rcfile,
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bos@173
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217 read_hint)
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bos@71
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218 for hunk in self.parse():
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bos@71
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219 # is this line a processing instruction?
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bos@71
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220 m = self.pi_re.match(hunk)
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bos@71
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221 if m:
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bos@71
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222 pi, rest = m.groups()
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bos@71
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223 if pi == 'name':
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bos@71
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224 self.status('.')
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bos@71
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225 out = rest
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bos@155
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226 if out in ('err', 'lxo', 'out', 'run', 'tmp'):
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bos@155
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227 print >> sys.stderr, ('%s: illegal section '
|
bos@155
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228 'name %r' %
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bos@155
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229 (self.name, out))
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bos@155
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230 return 1
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bos@71
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231 assert os.sep not in out
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bos@137
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232 if ofp is not None:
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bos@137
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233 ofp.close()
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bos@160
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234 err |= self.rename_output(ofp_basename, ignore)
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bos@71
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235 if out:
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bos@137
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236 ofp_basename = '%s.%s' % (self.name, out)
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bos@173
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237 read_hint = ofp_basename + ' '
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bos@137
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238 ofp = open(ofp_basename + '.tmp', 'w')
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bos@71
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239 else:
|
bos@71
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240 ofp = None
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bos@137
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241 elif pi == 'ignore':
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bos@137
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242 ignore.append(rest)
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bos@71
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243 elif hunk.strip():
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bos@71
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244 # it's something we should execute
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bos@173
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245 newps, output = self.sendreceive(hunk, read_hint)
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bos@168
|
246 if not ofp:
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bos@71
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247 continue
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bos@71
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248 # first, print the command we ran
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bos@71
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249 if not hunk.startswith('#'):
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bos@71
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250 nl = hunk.endswith('\n')
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bos@103
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251 hunk = ('%s \\textbf{%s}' %
|
bos@103
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252 (prompts[ps],
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bos@103
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253 tex_escape(hunk.rstrip('\n'))))
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bos@71
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254 if nl: hunk += '\n'
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bos@71
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255 ofp.write(hunk)
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bos@71
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256 # then its output
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bos@71
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257 ofp.write(tex_escape(output))
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bos@103
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258 ps = newps
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bos@71
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259 self.status('\n')
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bos@71
|
260 except:
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bos@72
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261 print >> sys.stderr, '(killed)'
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bos@79
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262 os.kill(self.pid, signal.SIGKILL)
|
bos@72
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263 pid, rc = os.wait()
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bos@71
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264 raise
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bos@72
|
265 else:
|
bos@71
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266 try:
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bos@173
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267 ps, output = self.sendreceive('exit\n', read_hint)
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bos@138
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268 if ofp is not None:
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bos@71
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269 ofp.write(output)
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bos@138
|
270 ofp.close()
|
bos@160
|
271 err |= self.rename_output(ofp_basename, ignore)
|
bos@73
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272 os.close(self.cfd)
|
bos@71
|
273 except IOError:
|
bos@71
|
274 pass
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bos@79
|
275 os.kill(self.pid, signal.SIGTERM)
|
bos@72
|
276 pid, rc = os.wait()
|
bos@160
|
277 err = err or rc
|
bos@160
|
278 if err:
|
bos@72
|
279 if os.WIFEXITED(rc):
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bos@72
|
280 print >> sys.stderr, '(exit %s)' % os.WEXITSTATUS(rc)
|
bos@72
|
281 elif os.WIFSIGNALED(rc):
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bos@72
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282 print >> sys.stderr, '(signal %s)' % os.WTERMSIG(rc)
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bos@136
|
283 else:
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bos@136
|
284 open(self.name + '.run', 'w')
|
bos@160
|
285 return err
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bos@72
|
286 finally:
|
bos@4
|
287 shutil.rmtree(tmpdir)
|
bos@3
|
288
|
bos@137
|
289 def rename_output(self, base, ignore):
|
bos@137
|
290 mangle_re = re.compile('(?:' + '|'.join(ignore) + ')')
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bos@137
|
291 def mangle(s):
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bos@137
|
292 return mangle_re.sub('', s)
|
bos@137
|
293 def matchfp(fp1, fp2):
|
bos@137
|
294 while True:
|
bos@137
|
295 s1 = mangle(fp1.readline())
|
bos@137
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296 s2 = mangle(fp2.readline())
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bos@137
|
297 if cmp(s1, s2):
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bos@137
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298 break
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bos@137
|
299 if not s1:
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bos@137
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300 return True
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bos@137
|
301 return False
|
bos@137
|
302
|
bos@137
|
303 oldname = base + '.out'
|
bos@137
|
304 tmpname = base + '.tmp'
|
bos@137
|
305 errname = base + '.err'
|
bos@137
|
306 errfp = open(errname, 'w+')
|
bos@137
|
307 for line in open(tmpname):
|
bos@137
|
308 errfp.write(mangle_re.sub('', line))
|
bos@146
|
309 os.rename(tmpname, base + '.lxo')
|
bos@137
|
310 errfp.seek(0)
|
bos@137
|
311 try:
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bos@137
|
312 oldfp = open(oldname)
|
bos@137
|
313 except IOError, err:
|
bos@137
|
314 if err.errno != errno.ENOENT:
|
bos@137
|
315 raise
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bos@137
|
316 os.rename(errname, oldname)
|
bos@160
|
317 return False
|
bos@137
|
318 if matchfp(oldfp, errfp):
|
bos@137
|
319 os.unlink(errname)
|
bos@160
|
320 return False
|
bos@137
|
321 else:
|
bos@137
|
322 print >> sys.stderr, '\nOutput of %s has changed!' % base
|
bos@137
|
323 os.system('diff -u %s %s 1>&2' % (oldname, errname))
|
bos@138
|
324 return True
|
bos@137
|
325
|
bos@258
|
326 def print_help(exit, msg=None):
|
bos@258
|
327 if msg:
|
bos@258
|
328 print >> sys.stderr, 'Error:', msg
|
bos@258
|
329 print >> sys.stderr, 'Usage: run-example [options] [test...]'
|
bos@258
|
330 print >> sys.stderr, 'Options:'
|
bos@258
|
331 print >> sys.stderr, ' -a --all run all tests in this directory'
|
bos@258
|
332 print >> sys.stderr, ' -h --help print this help message'
|
bos@258
|
333 print >> sys.stderr, ' -v --verbose display extra debug output'
|
bos@258
|
334 sys.exit(exit)
|
bos@258
|
335
|
bos@3
|
336 def main(path='.'):
|
bos@258
|
337 opts, args = getopt.getopt(sys.argv[1:], '?ahv',
|
bos@258
|
338 ['all', 'help', 'verbose'])
|
bos@78
|
339 verbose = False
|
bos@258
|
340 run_all = False
|
bos@78
|
341 for o, a in opts:
|
bos@258
|
342 if o in ('-h', '-?', '--help'):
|
bos@258
|
343 print_help(0)
|
bos@258
|
344 if o in ('-a', '--all'):
|
bos@258
|
345 run_all = True
|
bos@78
|
346 if o in ('-v', '--verbose'):
|
bos@78
|
347 verbose = True
|
bos@71
|
348 errs = 0
|
bos@3
|
349 if args:
|
bos@3
|
350 for a in args:
|
bos@75
|
351 try:
|
bos@75
|
352 st = os.lstat(a)
|
bos@75
|
353 except OSError, err:
|
bos@75
|
354 print >> sys.stderr, '%s: %s' % (a, err.strerror)
|
bos@75
|
355 errs += 1
|
bos@75
|
356 continue
|
bos@75
|
357 if stat.S_ISREG(st.st_mode) and st.st_mode & 0111:
|
bos@78
|
358 if example(a, verbose).run():
|
bos@75
|
359 errs += 1
|
bos@75
|
360 else:
|
bos@75
|
361 print >> sys.stderr, '%s: not a file, or not executable' % a
|
bos@71
|
362 errs += 1
|
bos@258
|
363 elif run_all:
|
bos@258
|
364 names = os.listdir(path)
|
bos@258
|
365 names.sort()
|
bos@258
|
366 for name in names:
|
bos@258
|
367 if name == 'run-example' or name.startswith('.'): continue
|
bos@258
|
368 if name.endswith('.out') or name.endswith('~'): continue
|
bos@258
|
369 if name.endswith('.run'): continue
|
bos@258
|
370 pathname = os.path.join(path, name)
|
bos@258
|
371 try:
|
bos@258
|
372 st = os.lstat(pathname)
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bos@258
|
373 except OSError, err:
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bos@258
|
374 # could be an output file that was removed while we ran
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bos@258
|
375 if err.errno != errno.ENOENT:
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bos@258
|
376 raise
|
bos@258
|
377 continue
|
bos@258
|
378 if stat.S_ISREG(st.st_mode) and st.st_mode & 0111:
|
bos@258
|
379 if example(pathname, verbose).run():
|
bos@258
|
380 errs += 1
|
bos@258
|
381 print >> open(os.path.join(path, '.run'), 'w'), time.asctime()
|
bos@258
|
382 else:
|
bos@258
|
383 print_help(1, msg='no test names given, and --all not provided')
|
bos@71
|
384 return errs
|
bos@3
|
385
|
bos@3
|
386 if __name__ == '__main__':
|
bos@258
|
387 try:
|
bos@258
|
388 sys.exit(main())
|
bos@258
|
389 except KeyboardInterrupt:
|
bos@258
|
390 print >> sys.stderr, 'interrupted!'
|
bos@258
|
391 sys.exit(1)
|