author | Augie Fackler <augie@google.com> |
Tue, 11 Feb 2020 00:44:59 -0500 | |
changeset 44477 | ad718271a9eb |
parent 44452 | 9d2b2df2c2ba |
child 44570 | 9e63108123a4 |
permissions | -rw-r--r-- |
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# remotefilelog.py - filelog implementation where filelog history is stored |
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# remotely |
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# |
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# Copyright 2013 Facebook, Inc. |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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from __future__ import absolute_import |
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import collections |
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import os |
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from mercurial.node import ( |
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bin, |
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nullid, |
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wdirfilenodeids, |
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wdirid, |
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) |
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from mercurial.i18n import _ |
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from mercurial import ( |
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ancestor, |
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error, |
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mdiff, |
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pycompat, |
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revlog, |
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util, |
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) |
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from mercurial.utils import storageutil |
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from mercurial.revlogutils import flagutil |
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from . import ( |
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constants, |
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fileserverclient, |
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shallowutil, |
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class remotefilelognodemap(object): |
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def __init__(self, filename, store): |
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self._filename = filename |
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self._store = store |
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def __contains__(self, node): |
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missing = self._store.getmissing([(self._filename, node)]) |
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return not bool(missing) |
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def __get__(self, node): |
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if node not in self: |
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raise KeyError(node) |
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return node |
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class remotefilelog(object): |
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_generaldelta = True |
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_flagserrorclass = error.RevlogError |
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def __init__(self, opener, path, repo): |
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self.opener = opener |
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self.filename = path |
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self.repo = repo |
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self.nodemap = remotefilelognodemap(self.filename, repo.contentstore) |
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self.version = 1 |
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self._flagprocessors = dict(flagutil.flagprocessors) |
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def read(self, node): |
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"""returns the file contents at this node""" |
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t = self.revision(node) |
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if not t.startswith(b'\1\n'): |
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return t |
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s = t.index(b'\1\n', 2) |
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return t[s + 2 :] |
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def add(self, text, meta, transaction, linknode, p1=None, p2=None): |
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# hash with the metadata, like in vanilla filelogs |
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hashtext = shallowutil.createrevlogtext( |
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text, meta.get(b'copy'), meta.get(b'copyrev') |
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) |
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node = storageutil.hashrevisionsha1(hashtext, p1, p2) |
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return self.addrevision( |
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hashtext, transaction, linknode, p1, p2, node=node |
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) |
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def _createfileblob(self, text, meta, flags, p1, p2, node, linknode): |
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# text passed to "_createfileblob" does not include filelog metadata |
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header = shallowutil.buildfileblobheader(len(text), flags) |
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data = b"%s\0%s" % (header, text) |
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realp1 = p1 |
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copyfrom = b"" |
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if meta and b'copy' in meta: |
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copyfrom = meta[b'copy'] |
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realp1 = bin(meta[b'copyrev']) |
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data += b"%s%s%s%s%s\0" % (node, realp1, p2, linknode, copyfrom) |
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visited = set() |
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pancestors = {} |
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queue = [] |
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if realp1 != nullid: |
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p1flog = self |
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if copyfrom: |
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p1flog = remotefilelog(self.opener, copyfrom, self.repo) |
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107 |
|
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108 |
pancestors.update(p1flog.ancestormap(realp1)) |
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109 |
queue.append(realp1) |
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110 |
visited.add(realp1) |
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111 |
if p2 != nullid: |
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112 |
pancestors.update(self.ancestormap(p2)) |
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113 |
queue.append(p2) |
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114 |
visited.add(p2) |
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115 |
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116 |
ancestortext = b"" |
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117 |
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118 |
# add the ancestors in topological order |
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119 |
while queue: |
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120 |
c = queue.pop(0) |
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121 |
pa1, pa2, ancestorlinknode, pacopyfrom = pancestors[c] |
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122 |
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pacopyfrom = pacopyfrom or b'' |
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ancestortext += b"%s%s%s%s%s\0" % ( |
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125 |
c, |
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126 |
pa1, |
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127 |
pa2, |
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128 |
ancestorlinknode, |
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129 |
pacopyfrom, |
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130 |
) |
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131 |
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132 |
if pa1 != nullid and pa1 not in visited: |
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133 |
queue.append(pa1) |
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134 |
visited.add(pa1) |
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135 |
if pa2 != nullid and pa2 not in visited: |
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136 |
queue.append(pa2) |
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137 |
visited.add(pa2) |
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138 |
|
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139 |
data += ancestortext |
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140 |
|
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141 |
return data |
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142 |
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143 |
def addrevision( |
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self, |
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text, |
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transaction, |
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linknode, |
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148 |
p1, |
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149 |
p2, |
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cachedelta=None, |
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node=None, |
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flags=revlog.REVIDX_DEFAULT_FLAGS, |
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sidedata=None, |
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154 |
): |
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155 |
# text passed to "addrevision" includes hg filelog metadata header |
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156 |
if node is None: |
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157 |
node = storageutil.hashrevisionsha1(text, p1, p2) |
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if sidedata is None: |
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159 |
sidedata = {} |
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160 |
|
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161 |
meta, metaoffset = storageutil.parsemeta(text) |
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rawtext, validatehash = flagutil.processflagswrite( |
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163 |
self, text, flags, sidedata=sidedata |
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164 |
) |
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165 |
return self.addrawrevision( |
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rawtext, |
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transaction, |
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168 |
linknode, |
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169 |
p1, |
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170 |
p2, |
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171 |
node, |
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flags, |
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173 |
cachedelta, |
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174 |
_metatuple=(meta, metaoffset), |
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175 |
) |
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176 |
|
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177 |
def addrawrevision( |
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178 |
self, |
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179 |
rawtext, |
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180 |
transaction, |
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181 |
linknode, |
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182 |
p1, |
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183 |
p2, |
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184 |
node, |
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185 |
flags, |
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186 |
cachedelta=None, |
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187 |
_metatuple=None, |
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188 |
): |
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189 |
if _metatuple: |
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190 |
# _metatuple: used by "addrevision" internally by remotefilelog |
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191 |
# meta was parsed confidently |
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192 |
meta, metaoffset = _metatuple |
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193 |
else: |
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194 |
# not from self.addrevision, but something else (repo._filecommit) |
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195 |
# calls addrawrevision directly. remotefilelog needs to get and |
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196 |
# strip filelog metadata. |
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197 |
# we don't have confidence about whether rawtext contains filelog |
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198 |
# metadata or not (flag processor could replace it), so we just |
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199 |
# parse it as best-effort. |
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200 |
# in LFS (flags != 0)'s case, the best way is to call LFS code to |
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201 |
# get the meta information, instead of storageutil.parsemeta. |
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202 |
meta, metaoffset = storageutil.parsemeta(rawtext) |
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203 |
if flags != 0: |
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204 |
# when flags != 0, be conservative and do not mangle rawtext, since |
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205 |
# a read flag processor expects the text not being mangled at all. |
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206 |
metaoffset = 0 |
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207 |
if metaoffset: |
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208 |
# remotefilelog fileblob stores copy metadata in its ancestortext, |
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209 |
# not its main blob. so we need to remove filelog metadata |
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210 |
# (containing copy information) from text. |
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211 |
blobtext = rawtext[metaoffset:] |
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212 |
else: |
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blobtext = rawtext |
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data = self._createfileblob( |
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blobtext, meta, flags, p1, p2, node, linknode |
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216 |
) |
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217 |
self.repo.contentstore.addremotefilelognode(self.filename, node, data) |
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return node |
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def renamed(self, node): |
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ancestors = self.repo.metadatastore.getancestors(self.filename, node) |
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p1, p2, linknode, copyfrom = ancestors[node] |
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if copyfrom: |
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return (copyfrom, p1) |
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return False |
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def size(self, node): |
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"""return the size of a given revision""" |
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return len(self.read(node)) |
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233 |
rawsize = size |
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235 |
def cmp(self, node, text): |
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"""compare text with a given file revision |
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returns True if text is different than what is stored. |
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239 |
""" |
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if node == nullid: |
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return True |
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nodetext = self.read(node) |
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return nodetext != text |
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def __nonzero__(self): |
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return True |
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__bool__ = __nonzero__ |
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def __len__(self): |
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if self.filename == b'.hgtags': |
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254 |
# The length of .hgtags is used to fast path tag checking. |
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# remotefilelog doesn't support .hgtags since the entire .hgtags |
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256 |
# history is needed. Use the excludepattern setting to make |
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# .hgtags a normal filelog. |
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258 |
return 0 |
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raise RuntimeError(b"len not supported") |
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262 |
def empty(self): |
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263 |
return False |
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264 |
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265 |
def flags(self, node): |
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266 |
if isinstance(node, int): |
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267 |
raise error.ProgrammingError( |
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268 |
b'remotefilelog does not accept integer rev for flags' |
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269 |
) |
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270 |
store = self.repo.contentstore |
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271 |
return store.getmeta(self.filename, node).get(constants.METAKEYFLAG, 0) |
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273 |
def parents(self, node): |
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if node == nullid: |
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275 |
return nullid, nullid |
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277 |
ancestormap = self.repo.metadatastore.getancestors(self.filename, node) |
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278 |
p1, p2, linknode, copyfrom = ancestormap[node] |
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279 |
if copyfrom: |
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280 |
p1 = nullid |
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281 |
|
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282 |
return p1, p2 |
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283 |
|
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284 |
def parentrevs(self, rev): |
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285 |
# TODO(augie): this is a node and should be a rev, but for now |
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286 |
# nothing in core seems to actually break. |
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287 |
return self.parents(rev) |
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288 |
|
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289 |
def linknode(self, node): |
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290 |
ancestormap = self.repo.metadatastore.getancestors(self.filename, node) |
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291 |
p1, p2, linknode, copyfrom = ancestormap[node] |
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292 |
return linknode |
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293 |
|
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294 |
def linkrev(self, node): |
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295 |
return self.repo.unfiltered().changelog.rev(self.linknode(node)) |
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296 |
|
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297 |
def emitrevisions( |
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298 |
self, |
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299 |
nodes, |
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300 |
nodesorder=None, |
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301 |
revisiondata=False, |
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302 |
assumehaveparentrevisions=False, |
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303 |
deltaprevious=False, |
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304 |
deltamode=None, |
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305 |
): |
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306 |
# we don't use any of these parameters here |
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|
307 |
del nodesorder, revisiondata, assumehaveparentrevisions, deltaprevious |
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|
308 |
del deltamode |
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|
309 |
prevnode = None |
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310 |
for node in nodes: |
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311 |
p1, p2 = self.parents(node) |
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312 |
if prevnode is None: |
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|
313 |
basenode = prevnode = p1 |
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|
314 |
if basenode == node: |
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|
315 |
basenode = nullid |
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316 |
if basenode != nullid: |
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317 |
revision = None |
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318 |
delta = self.revdiff(basenode, node) |
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|
319 |
else: |
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320 |
revision = self.rawdata(node) |
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321 |
delta = None |
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|
322 |
yield revlog.revlogrevisiondelta( |
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|
323 |
node=node, |
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|
324 |
p1node=p1, |
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|
325 |
p2node=p2, |
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|
326 |
linknode=self.linknode(node), |
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|
327 |
basenode=basenode, |
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|
328 |
flags=self.flags(node), |
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|
329 |
baserevisionsize=None, |
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|
330 |
revision=revision, |
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|
331 |
delta=delta, |
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|
332 |
) |
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changeset
|
333 |
|
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|
334 |
def revdiff(self, node1, node2): |
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|
335 |
return mdiff.textdiff(self.rawdata(node1), self.rawdata(node2)) |
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|
336 |
|
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|
337 |
def lookup(self, node): |
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|
338 |
if len(node) == 40: |
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parents:
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changeset
|
339 |
node = bin(node) |
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parents:
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|
340 |
if len(node) != 20: |
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|
341 |
raise error.LookupError( |
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|
342 |
node, self.filename, _(b'invalid lookup input') |
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|
343 |
) |
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|
344 |
|
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|
345 |
return node |
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changeset
|
346 |
|
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parents:
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|
347 |
def rev(self, node): |
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|
348 |
# This is a hack to make TortoiseHG work. |
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|
349 |
return node |
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changeset
|
350 |
|
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|
351 |
def node(self, rev): |
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|
352 |
# This is a hack. |
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|
353 |
if isinstance(rev, int): |
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|
354 |
raise error.ProgrammingError( |
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|
355 |
b'remotefilelog does not convert integer rev to node' |
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|
356 |
) |
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|
357 |
return rev |
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parents:
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changeset
|
358 |
|
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flagprocessors: directly duplicate the deprecated layer back into revlog
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|
359 |
def _processflags(self, text, flags, operation, raw=False): |
01304095256c
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|
360 |
"""deprecated entry point to access flag processors""" |
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|
361 |
msg = b'_processflag(...) use the specialized variant' |
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|
362 |
util.nouideprecwarn(msg, b'5.2', stacklevel=2) |
42993
01304095256c
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changeset
|
363 |
if raw: |
01304095256c
flagprocessors: directly duplicate the deprecated layer back into revlog
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|
364 |
return text, flagutil.processflagsraw(self, text, flags) |
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|
365 |
elif operation == b'read': |
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|
366 |
return flagutil.processflagsread(self, text, flags) |
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|
367 |
else: # write operation |
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|
368 |
return flagutil.processflagswrite(self, text, flags) |
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|
369 |
|
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|
370 |
def revision(self, node, raw=False): |
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parents:
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changeset
|
371 |
"""returns the revlog contents at this node. |
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parents:
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|
372 |
this includes the meta data traditionally included in file revlogs. |
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parents:
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changeset
|
373 |
this is generally only used for bundling and communicating with vanilla |
3a333a582d7b
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parents:
diff
changeset
|
374 |
hg clients. |
3a333a582d7b
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parents:
diff
changeset
|
375 |
""" |
3a333a582d7b
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parents:
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changeset
|
376 |
if node == nullid: |
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|
377 |
return b"" |
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changeset
|
378 |
if len(node) != 20: |
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|
379 |
raise error.LookupError( |
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|
380 |
node, self.filename, _(b'invalid revision input') |
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changeset
|
381 |
) |
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864f9f63d3ed
remotefilelog: correctly reject wdir filenodes
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
382 |
if node == wdirid or node in wdirfilenodeids: |
864f9f63d3ed
remotefilelog: correctly reject wdir filenodes
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parents:
41365
diff
changeset
|
383 |
raise error.WdirUnsupported |
40495
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parents:
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changeset
|
384 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
385 |
store = self.repo.contentstore |
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parents:
diff
changeset
|
386 |
rawtext = store.get(self.filename, node) |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
387 |
if raw: |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
388 |
return rawtext |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
389 |
flags = store.getmeta(self.filename, node).get(constants.METAKEYFLAG, 0) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
390 |
if flags == 0: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
391 |
return rawtext |
42991
eb5048f8c533
flagprocessors: make `processflagsread` a module level function
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
42990
diff
changeset
|
392 |
return flagutil.processflagsread(self, rawtext, flags)[0] |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
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parents:
diff
changeset
|
393 |
|
42725
7492899c6fc6
rawdata: implement the method for `remotefilelog` too
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
42095
diff
changeset
|
394 |
def rawdata(self, node): |
7492899c6fc6
rawdata: implement the method for `remotefilelog` too
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parents:
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changeset
|
395 |
return self.revision(node, raw=False) |
7492899c6fc6
rawdata: implement the method for `remotefilelog` too
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parents:
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changeset
|
396 |
|
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parents:
diff
changeset
|
397 |
def _read(self, id): |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
398 |
"""reads the raw file blob from disk, cache, or server""" |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
399 |
fileservice = self.repo.fileservice |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
400 |
localcache = fileservice.localcache |
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changeset
|
401 |
cachekey = fileserverclient.getcachekey( |
2372284d9457
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changeset
|
402 |
self.repo.name, self.filename, id |
2372284d9457
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parents:
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changeset
|
403 |
) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
404 |
try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
405 |
return localcache.read(cachekey) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
406 |
except KeyError: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
407 |
pass |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
408 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
409 |
localkey = fileserverclient.getlocalkey(self.filename, id) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
410 |
localpath = os.path.join(self.localpath, localkey) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
411 |
try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
412 |
return shallowutil.readfile(localpath) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
413 |
except IOError: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
414 |
pass |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
415 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
416 |
fileservice.prefetch([(self.filename, id)]) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
417 |
try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
418 |
return localcache.read(cachekey) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
419 |
except KeyError: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
420 |
pass |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
421 |
|
43077
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formatting: byteify all mercurial/ and hgext/ string literals
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parents:
43076
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changeset
|
422 |
raise error.LookupError(id, self.filename, _(b'no node')) |
40495
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
423 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
424 |
def ancestormap(self, node): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
425 |
return self.repo.metadatastore.getancestors(self.filename, node) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
426 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
427 |
def ancestor(self, a, b): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
428 |
if a == nullid or b == nullid: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
429 |
return nullid |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
430 |
|
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remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
431 |
revmap, parentfunc = self._buildrevgraph(a, b) |
44452
9d2b2df2c2ba
cleanup: run pyupgrade on our source tree to clean up varying things
Augie Fackler <augie@google.com>
parents:
43105
diff
changeset
|
432 |
nodemap = {v: k for (k, v) in pycompat.iteritems(revmap)} |
40495
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
433 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
434 |
ancs = ancestor.ancestors(parentfunc, revmap[a], revmap[b]) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
435 |
if ancs: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
436 |
# choose a consistent winner when there's a tie |
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remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
437 |
return min(map(nodemap.__getitem__, ancs)) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
438 |
return nullid |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
439 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
440 |
def commonancestorsheads(self, a, b): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
441 |
"""calculate all the heads of the common ancestors of nodes a and b""" |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
442 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
443 |
if a == nullid or b == nullid: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
444 |
return nullid |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
445 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
446 |
revmap, parentfunc = self._buildrevgraph(a, b) |
44452
9d2b2df2c2ba
cleanup: run pyupgrade on our source tree to clean up varying things
Augie Fackler <augie@google.com>
parents:
43105
diff
changeset
|
447 |
nodemap = {v: k for (k, v) in pycompat.iteritems(revmap)} |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
448 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
449 |
ancs = ancestor.commonancestorsheads(parentfunc, revmap[a], revmap[b]) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
450 |
return map(nodemap.__getitem__, ancs) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
451 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
452 |
def _buildrevgraph(self, a, b): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
453 |
"""Builds a numeric revision graph for the given two nodes. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
454 |
Returns a node->rev map and a rev->[revs] parent function. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
455 |
""" |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
456 |
amap = self.ancestormap(a) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
457 |
bmap = self.ancestormap(b) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
458 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
459 |
# Union the two maps |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
460 |
parentsmap = collections.defaultdict(list) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
461 |
allparents = set() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
462 |
for mapping in (amap, bmap): |
43105
649d3ac37a12
py3: define and use pycompat.iteritems() for hgext/
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43077
diff
changeset
|
463 |
for node, pdata in pycompat.iteritems(mapping): |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
464 |
parents = parentsmap[node] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
465 |
p1, p2, linknode, copyfrom = pdata |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
466 |
# Don't follow renames (copyfrom). |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
467 |
# remotefilectx.ancestor does that. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
468 |
if p1 != nullid and not copyfrom: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
469 |
parents.append(p1) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
470 |
allparents.add(p1) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
471 |
if p2 != nullid: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
472 |
parents.append(p2) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
473 |
allparents.add(p2) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
474 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
475 |
# Breadth first traversal to build linkrev graph |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
476 |
parentrevs = collections.defaultdict(list) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
477 |
revmap = {} |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42995
diff
changeset
|
478 |
queue = collections.deque( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42995
diff
changeset
|
479 |
((None, n) for n in parentsmap if n not in allparents) |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42995
diff
changeset
|
480 |
) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
481 |
while queue: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
482 |
prevrev, current = queue.pop() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
483 |
if current in revmap: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
484 |
if prevrev: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
485 |
parentrevs[prevrev].append(revmap[current]) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
486 |
continue |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
487 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
488 |
# Assign linkrevs in reverse order, so start at |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
489 |
# len(parentsmap) and work backwards. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
490 |
currentrev = len(parentsmap) - len(revmap) - 1 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
491 |
revmap[current] = currentrev |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
492 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
493 |
if prevrev: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
494 |
parentrevs[prevrev].append(currentrev) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
495 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
496 |
for parent in parentsmap.get(current): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
497 |
queue.appendleft((currentrev, parent)) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
498 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
499 |
return revmap, parentrevs.__getitem__ |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
500 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
501 |
def strip(self, minlink, transaction): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
502 |
pass |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
503 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
504 |
# misc unused things |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
505 |
def files(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
506 |
return [] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
507 |
|
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
508 |
def checksize(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
509 |
return 0, 0 |