source: tests/pybin/tools.py@ 3fc5f010

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr no_list persistent-indexer pthread-emulation qualifiedEnum
Last change on this file since 3fc5f010 was 575a6e5, checked in by Thierry Delisle <tdelisle@…>, 7 years ago

Cross compilation appears to be working

  • Property mode set to 100644
File size: 6.6 KB
Line 
1from __future__ import print_function
2
3import __main__
4import argparse
5import multiprocessing
6import os
7import re
8import signal
9import stat
10import sys
11import fileinput
12
13from pybin import settings
14from subprocess import Popen, PIPE, STDOUT
15
16################################################################################
17# shell helpers
18################################################################################
19
20# helper functions to run terminal commands
21def sh(cmd, print2stdout = True, input = None):
22 # add input redirection if needed
23 if input and os.path.isfile(input):
24 cmd += " < %s" % input
25
26 # if this is a dry_run, only print the commands that would be ran
27 if settings.dry_run :
28 print("cmd: %s" % cmd)
29 return 0, None
30
31 # otherwise create a pipe and run the desired command
32 else :
33 proc = Popen(cmd, stdout=None if print2stdout else PIPE, stderr=STDOUT, shell=True)
34 out, err = proc.communicate()
35 return proc.returncode, out
36
37def is_ascii(fname):
38 if not os.path.isfile(fname):
39 return False
40
41 code, out = sh("file %s" % fname, print2stdout = False)
42 if code != 0:
43 return False
44
45 match = re.search(".*: (.*)", out)
46
47 if not match:
48 return False
49
50 return match.group(1).startswith("ASCII text")
51
52# Remove 1 or more files silently
53def rm( files ):
54 if isinstance( files, basestring ):
55 sh("rm -f %s > /dev/null 2>&1" % files )
56 else:
57 for file in files:
58 sh("rm -f %s > /dev/null 2>&1" % file )
59
60# Create 1 or more directory
61def mkdir( files ):
62 if isinstance( files, basestring ):
63 sh("mkdir -p %s" % os.path.dirname(files) )
64 else:
65 for file in files:
66 sh("mkdir -p %s" % os.path.dirname(file) )
67
68
69def chdir( dest = __main__.__file__ ):
70 abspath = os.path.abspath(dest)
71 dname = os.path.dirname(abspath)
72 os.chdir(dname)
73
74# diff two files
75def diff( lhs, rhs ):
76 # diff the output of the files
77 diff_cmd = ("diff --ignore-all-space "
78 "--ignore-blank-lines "
79 "--old-group-format='\t\tmissing lines :\n"
80 "%%<' \\\n"
81 "--new-group-format='\t\tnew lines :\n"
82 "%%>' \\\n"
83 "--unchanged-group-format='%%=' \\"
84 "--changed-group-format='\t\texpected :\n"
85 "%%<"
86 "\t\tgot :\n"
87 "%%>\n' \\\n"
88 "--new-line-format='\t\t%%dn\t%%L' \\\n"
89 "--old-line-format='\t\t%%dn\t%%L' \\\n"
90 "--unchanged-line-format='' \\\n"
91 "%s %s")
92
93 # fetch return code and error from the diff command
94 return sh(diff_cmd % (lhs, rhs), False)
95
96# call make
97def make(target, flags = '', redirects = '', error_file = None, silent = False):
98 test_param = """test="%s" """ % (error_file) if error_file else ''
99 cmd = ' '.join([
100 settings.make,
101 '-s' if silent else '',
102 test_param,
103 settings.arch.flags,
104 settings.debug.flags,
105 settings.install.flags,
106 flags,
107 target,
108 redirects
109 ])
110 return sh(cmd)
111
112def which(program):
113 import os
114 def is_exe(fpath):
115 return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
116
117 fpath, fname = os.path.split(program)
118 if fpath:
119 if is_exe(program):
120 return program
121 else:
122 for path in os.environ["PATH"].split(os.pathsep):
123 exe_file = os.path.join(path, program)
124 if is_exe(exe_file):
125 return exe_file
126
127 return None
128################################################################################
129# file handling
130################################################################################
131
132# helper function to replace patterns in a file
133def file_replace(fname, pat, s_after):
134 file = fileinput.FileInput(fname, inplace=True, backup='.bak')
135 for line in file:
136 print(line.replace(pat, s_after), end='')
137 file.close()
138
139# helper function to check if a files contains only a specific string
140def fileContainsOnly(file, text) :
141 with open(file) as f:
142 ff = f.read().strip()
143 result = ff == text.strip()
144
145 return result;
146
147# check whether or not a file is executable
148def fileIsExecutable(file) :
149 try :
150 fileinfo = os.stat(file)
151 return bool(fileinfo.st_mode & stat.S_IXUSR)
152 except Exception as inst:
153 print(type(inst)) # the exception instance
154 print(inst.args) # arguments stored in .args
155 print(inst)
156 return False
157
158# transform path to canonical form
159def canonicalPath(path):
160 abspath = os.path.abspath(__main__.__file__)
161 dname = os.path.dirname(abspath)
162 return os.path.join(dname, os.path.normpath(path) )
163
164# compare path even if form is different
165def pathCmp(lhs, rhs):
166 return canonicalPath( lhs ) == canonicalPath( rhs )
167
168# walk all files in a path
169def pathWalk( op ):
170 def step(_, dirname, names):
171 for name in names:
172 path = os.path.join(dirname, name)
173 op( path )
174
175 # Start the walk
176 dname = settings.SRCDIR
177 os.path.walk(dname, step, '')
178
179################################################################################
180# system
181################################################################################
182# count number of jobs to create
183def jobCount( options, tests ):
184 # check if the user already passed in a number of jobs for multi-threading
185 if not options.jobs:
186 make_flags = os.environ.get('MAKEFLAGS')
187 force = bool(make_flags)
188 make_jobs_fds = re.search("--jobserver-(auth|fds)=\s*([0-9]+),([0-9]+)", make_flags) if make_flags else None
189 if make_jobs_fds :
190 tokens = os.read(int(make_jobs_fds.group(2)), 1024)
191 options.jobs = len(tokens)
192 os.write(int(make_jobs_fds.group(3)), tokens)
193 else :
194 options.jobs = multiprocessing.cpu_count()
195 else :
196 force = True
197
198 # make sure we have a valid number of jobs that corresponds to user input
199 if options.jobs <= 0 :
200 print('ERROR: Invalid number of jobs', file=sys.stderr)
201 sys.exit(1)
202
203 return min( options.jobs, len(tests) ), force
204
205# setup a proper processor pool with correct signal handling
206def setupPool(jobs):
207 original_sigint_handler = signal.signal(signal.SIGINT, signal.SIG_IGN)
208 pool = multiprocessing.Pool(jobs)
209 signal.signal(signal.SIGINT, original_sigint_handler)
210
211 return pool
212
213# handle signals in scope
214class SignalHandling():
215 def __enter__(self):
216 # enable signal handling
217 signal.signal(signal.SIGINT, signal.SIG_DFL)
218
219 def __exit__(self, type, value, traceback):
220 # disable signal handling
221 signal.signal(signal.SIGINT, signal.SIG_IGN)
222
223################################################################################
224# misc
225################################################################################
226
227# check if arguments is yes or no
228def yes_no(string):
229 if string == "yes" :
230 return True
231 if string == "no" :
232 return False
233 raise argparse.ArgumentTypeError(msg)
234 return False
235
236def fancy_print(text):
237 column = which('column')
238 if column:
239 cmd = "%s 2> /dev/null" % column
240 print(cmd)
241 proc = Popen(cmd, stdin=PIPE, stderr=None, shell=True)
242 proc.communicate(input=text)
243 else:
244 print(text)
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