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68 lines
2.0 KiB
68 lines
2.0 KiB
#!/usr/bin/python |
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""" |
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Simulates svnrdump by replaying an existing dump from a file, taking care |
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of the specified revision range. |
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To simulate incremental imports the environment variable SVNRMAX can be set |
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to the highest revision that should be available. |
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""" |
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import sys |
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import os |
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if sys.hexversion < 0x02040000: |
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# The limiter is the ValueError() calls. This may be too conservative |
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sys.stderr.write("svnrdump-sim.py: requires Python 2.4 or later.\n") |
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sys.exit(1) |
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def getrevlimit(): |
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var = 'SVNRMAX' |
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if var in os.environ: |
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return os.environ[var] |
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return None |
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def writedump(url, lower, upper): |
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if url.startswith('sim://'): |
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filename = url[6:] |
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if filename[-1] == '/': |
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filename = filename[:-1] # remove terminating slash |
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else: |
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raise ValueError('sim:// url required') |
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f = open(filename, 'r') |
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state = 'header' |
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wroterev = False |
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while(True): |
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l = f.readline() |
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if l == '': |
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break |
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if state == 'header' and l.startswith('Revision-number: '): |
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state = 'prefix' |
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if state == 'prefix' and l == 'Revision-number: %s\n' % lower: |
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state = 'selection' |
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if not upper == 'HEAD' and state == 'selection' and \ |
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l == 'Revision-number: %s\n' % upper: |
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break |
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if state == 'header' or state == 'selection': |
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if state == 'selection': |
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wroterev = True |
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sys.stdout.write(l) |
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return wroterev |
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if __name__ == "__main__": |
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if not (len(sys.argv) in (3, 4, 5)): |
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print("usage: %s dump URL -rLOWER:UPPER") |
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sys.exit(1) |
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if not sys.argv[1] == 'dump': |
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raise NotImplementedError('only "dump" is suppported.') |
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url = sys.argv[2] |
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r = ('0', 'HEAD') |
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if len(sys.argv) == 4 and sys.argv[3][0:2] == '-r': |
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r = sys.argv[3][2:].lstrip().split(':') |
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if not getrevlimit() is None: |
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r[1] = getrevlimit() |
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if writedump(url, r[0], r[1]): |
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ret = 0 |
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else: |
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ret = 1 |
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sys.exit(ret)
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