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Diffstat (limited to 'contrib/fast-import/git-p4')
| -rwxr-xr-x | contrib/fast-import/git-p4 | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4 index e527734be5..d1f8d3b78d 100755 --- a/contrib/fast-import/git-p4 +++ b/contrib/fast-import/git-p4 @@ -711,9 +711,23 @@ class P4Sync(Command): if not files: return - filedata = p4CmdList('print %s' % ' '.join(['"%s#%s"' % (f['path'], - f['rev']) - for f in files])) + # We cannot put all the files on the command line + # OS have limitations on the max lenght of arguments + # POSIX says it's 4096 bytes, default for Linux seems to be 130 K. + # and all OS from the table below seems to be higher than POSIX. + # See http://www.in-ulm.de/~mascheck/various/argmax/ + argmax = min(4000, os.sysconf('SC_ARG_MAX')) + chunk = '' + filedata = [] + for i in xrange(len(files)): + f = files[i] + chunk += '"%s#%s" ' % (f['path'], f['rev']) + if len(chunk) > argmax or i == len(files)-1: + data = p4CmdList('print %s' % chunk) + if "p4ExitCode" in data[0]: + die("Problems executing p4. Error: [%d]." % (data[0]['p4ExitCode'])); + filedata.extend(data) + chunk = '' j = 0; contents = {} |