Mercurial > hg > mercurial-crew-with-dirclash

comparison mercurial/sshrepo.py @ 2439:e8c4f3d3df8c

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extend network protocol to stop clients from locking servers now all repositories have capabilities slot, tuple with list of names. if 'unbundle' capability present, repo supports push where client does not need to lock server. repository classes that have unbundle capability also have unbundle method. implemented for ssh now, will be base for push over http. unbundle protocol acts this way. server tells client what heads it has during normal negotiate step. client starts unbundle by repeat server's heads back to it. if server has new heads, abort immediately. otherwise, transfer changes to server. once data transferred, server locks and checks heads again. if heads same, changes can be added. else someone else added heads, and server aborts. if client wants to force server to add heads, sends special heads list of 'force'.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Thu, 15 Jun 2006 16:37:23 -0700
parents a1cfe679192c
children cc1011a7ed09
comparison
equal deleted inserted replaced
2436:f910b91dd912 2439:e8c4f3d3df8c
139 def changegroup(self, nodes, kind): 139 def changegroup(self, nodes, kind):
140 n = " ".join(map(hex, nodes)) 140 n = " ".join(map(hex, nodes))
141 f = self.do_cmd("changegroup", roots=n) 141 f = self.do_cmd("changegroup", roots=n)
142 return self.pipei 142 return self.pipei
143 143
144 def unbundle(self, cg, heads, source):
145 d = self.call("unbundle", heads=' '.join(map(hex, heads)))
146 if d:
147 raise hg.RepoError(_("push refused: %s") % d)
148
149 while 1:
150 d = cg.read(4096)
151 if not d: break
152 self.pipeo.write(str(len(d)) + '\n')
153 self.pipeo.write(d)
154 self.readerr()
155
156 self.pipeo.write('0\n')
157 self.pipeo.flush()
158
159 self.readerr()
160 d = self.pipei.readline()
161 if d != '\n':
162 return 1
163
164 l = int(self.pipei.readline())
165 r = self.pipei.read(l)
166 if not r:
167 return 1
168 return int(r)
169
144 def addchangegroup(self, cg, source): 170 def addchangegroup(self, cg, source):
145 d = self.call("addchangegroup") 171 d = self.call("addchangegroup")
146 if d: 172 if d:
147 raise hg.RepoError(_("push refused: %s"), d) 173 raise hg.RepoError(_("push refused: %s") % d)
148
149 while 1: 174 while 1:
150 d = cg.read(4096) 175 d = cg.read(4096)
151 if not d: break 176 if not d: break
152 self.pipeo.write(d) 177 self.pipeo.write(d)
153 self.readerr() 178 self.readerr()