hghave
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r4881 | #!/usr/bin/env python | ||
"""Test the running system for features availability. Exit with zero | ||||
if all features are there, non-zero otherwise. | ||||
""" | ||||
import optparse | ||||
import os | ||||
import sys | ||||
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r5072 | import tempfile | ||
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r4881 | |||
def has_symlink(): | ||||
return hasattr(os, "symlink") | ||||
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r5070 | def has_fifo(): | ||
return hasattr(os, "mkfifo") | ||||
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r5072 | def has_executablebit(): | ||
fd, path = tempfile.mkstemp() | ||||
os.close(fd) | ||||
try: | ||||
s = os.lstat(path).st_mode | ||||
os.chmod(path, s | 0100) | ||||
return (os.lstat(path).st_mode & 0100 != 0) | ||||
finally: | ||||
os.remove(path) | ||||
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r5074 | def has_eol_in_paths(): | ||
try: | ||||
fd, path = tempfile.mkstemp(suffix='\n\r') | ||||
os.close(fd) | ||||
os.remove(path) | ||||
return True | ||||
except: | ||||
return False | ||||
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r4881 | checks = { | ||
"symlink": (has_symlink, "symbolic links"), | ||||
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r5070 | "fifo": (has_fifo, "named pipes"), | ||
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r5072 | "execbit": (has_executablebit, "executable bit"), | ||
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r5074 | "eol-in-paths": (has_eol_in_paths, "end-of-lines in paths"), | ||
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r4881 | } | ||
def list_features(): | ||||
for name, feature in checks.iteritems(): | ||||
desc = feature[1] | ||||
print name + ':', desc | ||||
parser = optparse.OptionParser("%prog [options] [features]") | ||||
parser.add_option("--list-features", action="store_true", | ||||
help="list available features") | ||||
parser.add_option("-q", "--quiet", action="store_true", | ||||
help="check features silently") | ||||
if __name__ == '__main__': | ||||
options, args = parser.parse_args() | ||||
if options.list_features: | ||||
list_features() | ||||
sys.exit(0) | ||||
quiet = options.quiet | ||||
failures = 0 | ||||
def error(msg): | ||||
global failures | ||||
if not quiet: | ||||
sys.stderr.write(msg + '\n') | ||||
failures += 1 | ||||
for feature in args: | ||||
if feature not in checks: | ||||
error('hghave: unknown feature: ' + feature) | ||||
continue | ||||
check, desc = checks[feature] | ||||
if not check(): | ||||
error('hghave: missing feature: ' + desc) | ||||
if failures != 0: | ||||
sys.exit(1) | ||||