Mercurial > hg
view contrib/debugcmdserver.py @ 39857:8dab7c8a93eb
upgrade: report size of backing files, not internal storage size
upgrade.py is the only consumer of filelog.index, which I'd like
to eliminate from the file storage interface.
This commit changes the upgrade code to report the storage size
of files by looking at the size of the files backing its storage
instead of looking at the index.
I'm not convinced the approach in this patch will live very long
because it is relying on low-level attributes like "opener" and
"files," which may behave very differently on non-revlog storage.
But the data is only used for reporting purposes and it does get
us one step closer to eliminating "index."
A side-effect of this change is we now report the size of the revlog
index data - not just the revision data. I think this is more
accurate.
Differential Revision: https://phab.mercurial-scm.org/D4717
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 24 Sep 2018 09:37:19 -0700 |
parents | cd03fbd5ab57 |
children | 2372284d9457 |
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#!/usr/bin/env python # # Dumps output generated by Mercurial's command server in a formatted style to a # given file or stderr if '-' is specified. Output is also written in its raw # format to stdout. # # $ ./hg serve --cmds pipe | ./contrib/debugcmdserver.py - # o, 52 -> 'capabilities: getencoding runcommand\nencoding: UTF-8' from __future__ import absolute_import, print_function import struct import sys if len(sys.argv) != 2: print('usage: debugcmdserver.py FILE') sys.exit(1) outputfmt = '>cI' outputfmtsize = struct.calcsize(outputfmt) if sys.argv[1] == '-': log = sys.stderr else: log = open(sys.argv[1], 'a') def read(size): data = sys.stdin.read(size) if not data: raise EOFError sys.stdout.write(data) sys.stdout.flush() return data try: while True: header = read(outputfmtsize) channel, length = struct.unpack(outputfmt, header) log.write('%s, %-4d' % (channel, length)) if channel in 'IL': log.write(' -> waiting for input\n') else: data = read(length) log.write(' -> %r\n' % data) log.flush() except EOFError: pass finally: if log != sys.stderr: log.close()