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comparison hgext/lfs/wrapper.py @ 39883:3e896b51aa5d

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storageutil: move metadata parsing and packing from revlog (API) Parsing and writing of revision text metadata is likely identical across storage backends. Let's move the code out of revlog so we don't need to import the revlog module in order to use it. Differential Revision: https://phab.mercurial-scm.org/D4754
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 24 Sep 2018 14:31:31 -0700
parents 96838b620b9c
children e1f97179a3f5
comparison
equal deleted inserted replaced
39882:f8eb71f9e3bd 39883:3e896b51aa5d
18 revlog, 18 revlog,
19 util, 19 util,
20 ) 20 )
21 21
22 from mercurial.utils import ( 22 from mercurial.utils import (
23 storageutil,
23 stringutil, 24 stringutil,
24 ) 25 )
25 26
26 from ..largefiles import lfutil 27 from ..largefiles import lfutil
27 28
74 for k in p.keys(): 75 for k in p.keys():
75 if k.startswith('x-hg-'): 76 if k.startswith('x-hg-'):
76 name = k[len('x-hg-'):] 77 name = k[len('x-hg-'):]
77 hgmeta[name] = p[k] 78 hgmeta[name] = p[k]
78 if hgmeta or text.startswith('\1\n'): 79 if hgmeta or text.startswith('\1\n'):
79 text = revlog.packmeta(hgmeta, text) 80 text = storageutil.packmeta(hgmeta, text)
80 81
81 return (text, True) 82 return (text, True)
82 83
83 def writetostore(self, text): 84 def writetostore(self, text):
84 # hg filelog metadata (includes rename, etc) 85 # hg filelog metadata (includes rename, etc)
85 hgmeta, offset = revlog.parsemeta(text) 86 hgmeta, offset = storageutil.parsemeta(text)
86 if offset and offset > 0: 87 if offset and offset > 0:
87 # lfs blob does not contain hg filelog metadata 88 # lfs blob does not contain hg filelog metadata
88 text = text[offset:] 89 text = text[offset:]
89 90
90 # git-lfs only supports sha256 91 # git-lfs only supports sha256
130 lfstrack = self._revlog.opener.options.get('lfstrack') 131 lfstrack = self._revlog.opener.options.get('lfstrack')
131 132
132 if lfstrack: 133 if lfstrack:
133 textlen = len(text) 134 textlen = len(text)
134 # exclude hg rename meta from file size 135 # exclude hg rename meta from file size
135 meta, offset = revlog.parsemeta(text) 136 meta, offset = storageutil.parsemeta(text)
136 if offset: 137 if offset:
137 textlen -= offset 138 textlen -= offset
138 139
139 if lfstrack(self._revlog.filename, textlen): 140 if lfstrack(self._revlog.filename, textlen):
140 flags |= revlog.REVIDX_EXTSTORED 141 flags |= revlog.REVIDX_EXTSTORED