Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/byteyears.py @ 66978:aed2bbafa550 3.1

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Blocked revisions 87324 via svnmerge ........ r87324 | r.david.murray | 2010-12-16 14:08:51 -0500 (Thu, 16 Dec 2010) | 9 lines #10719: restore messages generated on invalid compileall args Before the introduction of filename arguments to compileall it gave semi useful messages about not being able to 'list' names that weren't valid directories. This fix restores that behavior. In addition to the test for this case, the patch also adds a test for the default behavior of compileall when no arguments are provided, and fixes a bug in one of the previously added tests. ........
author R. David Murray <rdmurray@bitdance.com>
date Thu, 16 Dec 2010 19:10:16 +0000
parents 46625e6122e9
children fcfe324663a6
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73758db2f464 /usr/local/bin/python -> /usr/bin/env python
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1 #! /usr/bin/env python
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2
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3 # Print the product of age and size of each file, in suitable units.
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4 #
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5 # Usage: byteyears [ -a | -m | -c ] file ...
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6 #
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7 # Options -[amc] select atime, mtime (default) or ctime as age.
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8
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9 import sys, os, time
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10 from stat import *
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11
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12 def main():
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13
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14 # Use lstat() to stat files if it exists, else stat()
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15 try:
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16 statfunc = os.lstat
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17 except AttributeError:
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18 statfunc = os.stat
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19
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20 # Parse options
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21 if sys.argv[1] == '-m':
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22 itime = ST_MTIME
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23 del sys.argv[1]
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24 elif sys.argv[1] == '-c':
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25 itime = ST_CTIME
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26 del sys.argv[1]
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27 elif sys.argv[1] == '-a':
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28 itime = ST_CTIME
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29 del sys.argv[1]
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30 else:
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31 itime = ST_MTIME
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33 secs_per_year = 365.0 * 24.0 * 3600.0 # Scale factor
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34 now = time.time() # Current time, for age computations
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35 status = 0 # Exit status, set to 1 on errors
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37 # Compute max file name length
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38 maxlen = 1
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39 for filename in sys.argv[1:]:
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40 maxlen = max(maxlen, len(filename))
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42 # Process each argument in turn
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43 for filename in sys.argv[1:]:
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44 try:
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45 st = statfunc(filename)
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46 except os.error as msg:
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47 sys.stderr.write("can't stat %r: %r\n" % (filename, msg))
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48 status = 1
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49 st = ()
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50 if st:
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51 anytime = st[itime]
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52 size = st[ST_SIZE]
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53 age = now - anytime
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54 byteyears = float(size) * float(age) / secs_per_year
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55 print(filename.ljust(maxlen), end=' ')
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56 print(repr(int(byteyears)).rjust(8))
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58 sys.exit(status)
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59
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60 if __name__ == '__main__':
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61 main()