mirror of https://github.com/python/cpython
98 lines
4.0 KiB
Python
98 lines
4.0 KiB
Python
"""pyversioncheck - Module to help with checking versions"""
|
|
import urllib.request
|
|
import email
|
|
import sys
|
|
|
|
# Verbose options
|
|
VERBOSE_SILENT=0 # Single-line reports per package
|
|
VERBOSE_NORMAL=1 # Single-line reports per package, more info if outdated
|
|
VERBOSE_EACHFILE=2 # Report on each URL checked
|
|
VERBOSE_CHECKALL=3 # Check each URL for each package
|
|
|
|
# Test directory
|
|
## urllib bug: _TESTDIR="ftp://ftp.cwi.nl/pub/jack/python/versiontestdir/"
|
|
_TESTDIR="http://www.cwi.nl/~jack/versiontestdir/"
|
|
|
|
def versioncheck(package, url, version, verbose=0):
|
|
ok, newversion, fp = checkonly(package, url, version, verbose)
|
|
if verbose > VERBOSE_NORMAL:
|
|
return ok
|
|
if ok < 0:
|
|
print('%s: No correctly formatted current version file found'%(package))
|
|
elif ok == 1:
|
|
print('%s: up-to-date (version %s)'%(package, version))
|
|
else:
|
|
print('%s: version %s installed, version %s found:' % \
|
|
(package, version, newversion))
|
|
if verbose > VERBOSE_SILENT:
|
|
while 1:
|
|
line = fp.readline()
|
|
if not line: break
|
|
sys.stdout.write('\t'+line)
|
|
return ok
|
|
|
|
def checkonly(package, url, version, verbose=0):
|
|
if verbose >= VERBOSE_EACHFILE:
|
|
print('%s:'%package)
|
|
if isinstance(url, str):
|
|
ok, newversion, fp = _check1version(package, url, version, verbose)
|
|
else:
|
|
for u in url:
|
|
ok, newversion, fp = _check1version(package, u, version, verbose)
|
|
if ok >= 0 and verbose < VERBOSE_CHECKALL:
|
|
break
|
|
return ok, newversion, fp
|
|
|
|
def _check1version(package, url, version, verbose=0):
|
|
if verbose >= VERBOSE_EACHFILE:
|
|
print(' Checking %s'%url)
|
|
try:
|
|
fp = urllib.request.urlopen(url)
|
|
except IOError as arg:
|
|
if verbose >= VERBOSE_EACHFILE:
|
|
print(' Cannot open:', arg)
|
|
return -1, None, None
|
|
msg = email.message_from_file(fp)
|
|
newversion = msg.get('current-version')
|
|
if not newversion:
|
|
if verbose >= VERBOSE_EACHFILE:
|
|
print(' No "Current-Version:" header in URL or URL not found')
|
|
return -1, None, None
|
|
version = version.lower().strip()
|
|
newversion = newversion.lower().strip()
|
|
if version == newversion:
|
|
if verbose >= VERBOSE_EACHFILE:
|
|
print(' Version identical (%s)'%newversion)
|
|
return 1, version, fp
|
|
else:
|
|
if verbose >= VERBOSE_EACHFILE:
|
|
print(' Versions different (installed: %s, new: %s)'% \
|
|
(version, newversion))
|
|
return 0, newversion, fp
|
|
|
|
|
|
def _test():
|
|
print('--- TEST VERBOSE=1')
|
|
print('--- Testing existing and identical version file')
|
|
versioncheck('VersionTestPackage', _TESTDIR+'Version10.txt', '1.0', verbose=1)
|
|
print('--- Testing existing package with new version')
|
|
versioncheck('VersionTestPackage', _TESTDIR+'Version11.txt', '1.0', verbose=1)
|
|
print('--- Testing package with non-existing version file')
|
|
versioncheck('VersionTestPackage', _TESTDIR+'nonexistent.txt', '1.0', verbose=1)
|
|
print('--- Test package with 2 locations, first non-existing second ok')
|
|
versfiles = [_TESTDIR+'nonexistent.txt', _TESTDIR+'Version10.txt']
|
|
versioncheck('VersionTestPackage', versfiles, '1.0', verbose=1)
|
|
print('--- TEST VERBOSE=2')
|
|
print('--- Testing existing and identical version file')
|
|
versioncheck('VersionTestPackage', _TESTDIR+'Version10.txt', '1.0', verbose=2)
|
|
print('--- Testing existing package with new version')
|
|
versioncheck('VersionTestPackage', _TESTDIR+'Version11.txt', '1.0', verbose=2)
|
|
print('--- Testing package with non-existing version file')
|
|
versioncheck('VersionTestPackage', _TESTDIR+'nonexistent.txt', '1.0', verbose=2)
|
|
print('--- Test package with 2 locations, first non-existing second ok')
|
|
versfiles = [_TESTDIR+'nonexistent.txt', _TESTDIR+'Version10.txt']
|
|
versioncheck('VersionTestPackage', versfiles, '1.0', verbose=2)
|
|
|
|
if __name__ == '__main__':
|
|
_test()
|