Show More
@@ -1,463 +1,463 b'' | |||||
1 | # blobstore.py - local and remote (speaking Git-LFS protocol) blob storages |
|
1 | # blobstore.py - local and remote (speaking Git-LFS protocol) blob storages | |
2 | # |
|
2 | # | |
3 | # Copyright 2017 Facebook, Inc. |
|
3 | # Copyright 2017 Facebook, Inc. | |
4 | # |
|
4 | # | |
5 | # This software may be used and distributed according to the terms of the |
|
5 | # This software may be used and distributed according to the terms of the | |
6 | # GNU General Public License version 2 or any later version. |
|
6 | # GNU General Public License version 2 or any later version. | |
7 |
|
7 | |||
8 | from __future__ import absolute_import |
|
8 | from __future__ import absolute_import | |
9 |
|
9 | |||
10 | import hashlib |
|
10 | import hashlib | |
11 | import json |
|
11 | import json | |
12 | import os |
|
12 | import os | |
13 | import re |
|
13 | import re | |
14 | import socket |
|
14 | import socket | |
15 |
|
15 | |||
16 | from mercurial.i18n import _ |
|
16 | from mercurial.i18n import _ | |
17 |
|
17 | |||
18 | from mercurial import ( |
|
18 | from mercurial import ( | |
19 | error, |
|
19 | error, | |
20 | pathutil, |
|
20 | pathutil, | |
21 | url as urlmod, |
|
21 | url as urlmod, | |
22 | util, |
|
22 | util, | |
23 | vfs as vfsmod, |
|
23 | vfs as vfsmod, | |
24 | worker, |
|
24 | worker, | |
25 | ) |
|
25 | ) | |
26 |
|
26 | |||
27 | from ..largefiles import lfutil |
|
27 | from ..largefiles import lfutil | |
28 |
|
28 | |||
29 | # 64 bytes for SHA256 |
|
29 | # 64 bytes for SHA256 | |
30 | _lfsre = re.compile(r'\A[a-f0-9]{64}\Z') |
|
30 | _lfsre = re.compile(r'\A[a-f0-9]{64}\Z') | |
31 |
|
31 | |||
32 | class lfsvfs(vfsmod.vfs): |
|
32 | class lfsvfs(vfsmod.vfs): | |
33 | def join(self, path): |
|
33 | def join(self, path): | |
34 | """split the path at first two characters, like: XX/XXXXX...""" |
|
34 | """split the path at first two characters, like: XX/XXXXX...""" | |
35 | if not _lfsre.match(path): |
|
35 | if not _lfsre.match(path): | |
36 | raise error.ProgrammingError('unexpected lfs path: %s' % path) |
|
36 | raise error.ProgrammingError('unexpected lfs path: %s' % path) | |
37 | return super(lfsvfs, self).join(path[0:2], path[2:]) |
|
37 | return super(lfsvfs, self).join(path[0:2], path[2:]) | |
38 |
|
38 | |||
39 | def walk(self, path=None, onerror=None): |
|
39 | def walk(self, path=None, onerror=None): | |
40 | """Yield (dirpath, [], oids) tuple for blobs under path |
|
40 | """Yield (dirpath, [], oids) tuple for blobs under path | |
41 |
|
41 | |||
42 | Oids only exist in the root of this vfs, so dirpath is always ''. |
|
42 | Oids only exist in the root of this vfs, so dirpath is always ''. | |
43 | """ |
|
43 | """ | |
44 | root = os.path.normpath(self.base) |
|
44 | root = os.path.normpath(self.base) | |
45 | # when dirpath == root, dirpath[prefixlen:] becomes empty |
|
45 | # when dirpath == root, dirpath[prefixlen:] becomes empty | |
46 | # because len(dirpath) < prefixlen. |
|
46 | # because len(dirpath) < prefixlen. | |
47 | prefixlen = len(pathutil.normasprefix(root)) |
|
47 | prefixlen = len(pathutil.normasprefix(root)) | |
48 | oids = [] |
|
48 | oids = [] | |
49 |
|
49 | |||
50 | for dirpath, dirs, files in os.walk(self.reljoin(self.base, path or ''), |
|
50 | for dirpath, dirs, files in os.walk(self.reljoin(self.base, path or ''), | |
51 | onerror=onerror): |
|
51 | onerror=onerror): | |
52 | dirpath = dirpath[prefixlen:] |
|
52 | dirpath = dirpath[prefixlen:] | |
53 |
|
53 | |||
54 | # Silently skip unexpected files and directories |
|
54 | # Silently skip unexpected files and directories | |
55 | if len(dirpath) == 2: |
|
55 | if len(dirpath) == 2: | |
56 | oids.extend([dirpath + f for f in files |
|
56 | oids.extend([dirpath + f for f in files | |
57 | if _lfsre.match(dirpath + f)]) |
|
57 | if _lfsre.match(dirpath + f)]) | |
58 |
|
58 | |||
59 | yield ('', [], oids) |
|
59 | yield ('', [], oids) | |
60 |
|
60 | |||
61 | class filewithprogress(object): |
|
61 | class filewithprogress(object): | |
62 | """a file-like object that supports __len__ and read. |
|
62 | """a file-like object that supports __len__ and read. | |
63 |
|
63 | |||
64 | Useful to provide progress information for how many bytes are read. |
|
64 | Useful to provide progress information for how many bytes are read. | |
65 | """ |
|
65 | """ | |
66 |
|
66 | |||
67 | def __init__(self, fp, callback): |
|
67 | def __init__(self, fp, callback): | |
68 | self._fp = fp |
|
68 | self._fp = fp | |
69 | self._callback = callback # func(readsize) |
|
69 | self._callback = callback # func(readsize) | |
70 | fp.seek(0, os.SEEK_END) |
|
70 | fp.seek(0, os.SEEK_END) | |
71 | self._len = fp.tell() |
|
71 | self._len = fp.tell() | |
72 | fp.seek(0) |
|
72 | fp.seek(0) | |
73 |
|
73 | |||
74 | def __len__(self): |
|
74 | def __len__(self): | |
75 | return self._len |
|
75 | return self._len | |
76 |
|
76 | |||
77 | def read(self, size): |
|
77 | def read(self, size): | |
78 | if self._fp is None: |
|
78 | if self._fp is None: | |
79 | return b'' |
|
79 | return b'' | |
80 | data = self._fp.read(size) |
|
80 | data = self._fp.read(size) | |
81 | if data: |
|
81 | if data: | |
82 | if self._callback: |
|
82 | if self._callback: | |
83 | self._callback(len(data)) |
|
83 | self._callback(len(data)) | |
84 | else: |
|
84 | else: | |
85 | self._fp.close() |
|
85 | self._fp.close() | |
86 | self._fp = None |
|
86 | self._fp = None | |
87 | return data |
|
87 | return data | |
88 |
|
88 | |||
89 | class local(object): |
|
89 | class local(object): | |
90 | """Local blobstore for large file contents. |
|
90 | """Local blobstore for large file contents. | |
91 |
|
91 | |||
92 | This blobstore is used both as a cache and as a staging area for large blobs |
|
92 | This blobstore is used both as a cache and as a staging area for large blobs | |
93 | to be uploaded to the remote blobstore. |
|
93 | to be uploaded to the remote blobstore. | |
94 | """ |
|
94 | """ | |
95 |
|
95 | |||
96 | def __init__(self, repo): |
|
96 | def __init__(self, repo): | |
97 | fullpath = repo.svfs.join('lfs/objects') |
|
97 | fullpath = repo.svfs.join('lfs/objects') | |
98 | self.vfs = lfsvfs(fullpath) |
|
98 | self.vfs = lfsvfs(fullpath) | |
99 | usercache = lfutil._usercachedir(repo.ui, 'lfs') |
|
99 | usercache = lfutil._usercachedir(repo.ui, 'lfs') | |
100 | self.cachevfs = lfsvfs(usercache) |
|
100 | self.cachevfs = lfsvfs(usercache) | |
101 | self.ui = repo.ui |
|
101 | self.ui = repo.ui | |
102 |
|
102 | |||
103 | def open(self, oid): |
|
103 | def open(self, oid): | |
104 | """Open a read-only file descriptor to the named blob, in either the |
|
104 | """Open a read-only file descriptor to the named blob, in either the | |
105 | usercache or the local store.""" |
|
105 | usercache or the local store.""" | |
106 | # The usercache is the most likely place to hold the file. Commit will |
|
106 | # The usercache is the most likely place to hold the file. Commit will | |
107 | # write to both it and the local store, as will anything that downloads |
|
107 | # write to both it and the local store, as will anything that downloads | |
108 | # the blobs. However, things like clone without an update won't |
|
108 | # the blobs. However, things like clone without an update won't | |
109 | # populate the local store. For an init + push of a local clone, |
|
109 | # populate the local store. For an init + push of a local clone, | |
110 | # the usercache is the only place it _could_ be. If not present, the |
|
110 | # the usercache is the only place it _could_ be. If not present, the | |
111 | # missing file msg here will indicate the local repo, not the usercache. |
|
111 | # missing file msg here will indicate the local repo, not the usercache. | |
112 | if self.cachevfs.exists(oid): |
|
112 | if self.cachevfs.exists(oid): | |
113 | return self.cachevfs(oid, 'rb') |
|
113 | return self.cachevfs(oid, 'rb') | |
114 |
|
114 | |||
115 | return self.vfs(oid, 'rb') |
|
115 | return self.vfs(oid, 'rb') | |
116 |
|
116 | |||
117 | def download(self, oid, src): |
|
117 | def download(self, oid, src): | |
118 | """Read the blob from the remote source in chunks, verify the content, |
|
118 | """Read the blob from the remote source in chunks, verify the content, | |
119 | and write to this local blobstore.""" |
|
119 | and write to this local blobstore.""" | |
120 | sha256 = hashlib.sha256() |
|
120 | sha256 = hashlib.sha256() | |
121 |
|
121 | |||
122 | with self.vfs(oid, 'wb', atomictemp=True) as fp: |
|
122 | with self.vfs(oid, 'wb', atomictemp=True) as fp: | |
123 | for chunk in util.filechunkiter(src, size=1048576): |
|
123 | for chunk in util.filechunkiter(src, size=1048576): | |
124 | fp.write(chunk) |
|
124 | fp.write(chunk) | |
125 | sha256.update(chunk) |
|
125 | sha256.update(chunk) | |
126 |
|
126 | |||
127 | realoid = sha256.hexdigest() |
|
127 | realoid = sha256.hexdigest() | |
128 | if realoid != oid: |
|
128 | if realoid != oid: | |
129 | raise error.Abort(_('corrupt remote lfs object: %s') % oid) |
|
129 | raise error.Abort(_('corrupt remote lfs object: %s') % oid) | |
130 |
|
130 | |||
131 | # XXX: should we verify the content of the cache, and hardlink back to |
|
131 | # XXX: should we verify the content of the cache, and hardlink back to | |
132 | # the local store on success, but truncate, write and link on failure? |
|
132 | # the local store on success, but truncate, write and link on failure? | |
133 | if not self.cachevfs.exists(oid): |
|
133 | if not self.cachevfs.exists(oid): | |
134 | self.ui.note(_('lfs: adding %s to the usercache\n') % oid) |
|
134 | self.ui.note(_('lfs: adding %s to the usercache\n') % oid) | |
135 | lfutil.link(self.vfs.join(oid), self.cachevfs.join(oid)) |
|
135 | lfutil.link(self.vfs.join(oid), self.cachevfs.join(oid)) | |
136 |
|
136 | |||
137 | def write(self, oid, data): |
|
137 | def write(self, oid, data): | |
138 | """Write blob to local blobstore. |
|
138 | """Write blob to local blobstore. | |
139 |
|
139 | |||
140 | This should only be called from the filelog during a commit or similar. |
|
140 | This should only be called from the filelog during a commit or similar. | |
141 | As such, there is no need to verify the data. Imports from a remote |
|
141 | As such, there is no need to verify the data. Imports from a remote | |
142 | store must use ``download()`` instead.""" |
|
142 | store must use ``download()`` instead.""" | |
143 | with self.vfs(oid, 'wb', atomictemp=True) as fp: |
|
143 | with self.vfs(oid, 'wb', atomictemp=True) as fp: | |
144 | fp.write(data) |
|
144 | fp.write(data) | |
145 |
|
145 | |||
146 | # XXX: should we verify the content of the cache, and hardlink back to |
|
146 | # XXX: should we verify the content of the cache, and hardlink back to | |
147 | # the local store on success, but truncate, write and link on failure? |
|
147 | # the local store on success, but truncate, write and link on failure? | |
148 | if not self.cachevfs.exists(oid): |
|
148 | if not self.cachevfs.exists(oid): | |
149 | self.ui.note(_('lfs: adding %s to the usercache\n') % oid) |
|
149 | self.ui.note(_('lfs: adding %s to the usercache\n') % oid) | |
150 | lfutil.link(self.vfs.join(oid), self.cachevfs.join(oid)) |
|
150 | lfutil.link(self.vfs.join(oid), self.cachevfs.join(oid)) | |
151 |
|
151 | |||
152 | def read(self, oid, verify=True): |
|
152 | def read(self, oid, verify=True): | |
153 | """Read blob from local blobstore.""" |
|
153 | """Read blob from local blobstore.""" | |
154 | if not self.vfs.exists(oid): |
|
154 | if not self.vfs.exists(oid): | |
155 | blob = self._read(self.cachevfs, oid, verify) |
|
155 | blob = self._read(self.cachevfs, oid, verify) | |
156 |
|
156 | |||
157 | # Even if revlog will verify the content, it needs to be verified |
|
157 | # Even if revlog will verify the content, it needs to be verified | |
158 | # now before making the hardlink to avoid propagating corrupt blobs. |
|
158 | # now before making the hardlink to avoid propagating corrupt blobs. | |
159 | # Don't abort if corruption is detected, because `hg verify` will |
|
159 | # Don't abort if corruption is detected, because `hg verify` will | |
160 | # give more useful info about the corruption- simply don't add the |
|
160 | # give more useful info about the corruption- simply don't add the | |
161 | # hardlink. |
|
161 | # hardlink. | |
162 | if verify or hashlib.sha256(blob).hexdigest() == oid: |
|
162 | if verify or hashlib.sha256(blob).hexdigest() == oid: | |
163 | self.ui.note(_('lfs: found %s in the usercache\n') % oid) |
|
163 | self.ui.note(_('lfs: found %s in the usercache\n') % oid) | |
164 | lfutil.link(self.cachevfs.join(oid), self.vfs.join(oid)) |
|
164 | lfutil.link(self.cachevfs.join(oid), self.vfs.join(oid)) | |
165 | else: |
|
165 | else: | |
166 | self.ui.note(_('lfs: found %s in the local lfs store\n') % oid) |
|
166 | self.ui.note(_('lfs: found %s in the local lfs store\n') % oid) | |
167 | blob = self._read(self.vfs, oid, verify) |
|
167 | blob = self._read(self.vfs, oid, verify) | |
168 | return blob |
|
168 | return blob | |
169 |
|
169 | |||
170 | def _read(self, vfs, oid, verify): |
|
170 | def _read(self, vfs, oid, verify): | |
171 | """Read blob (after verifying) from the given store""" |
|
171 | """Read blob (after verifying) from the given store""" | |
172 | blob = vfs.read(oid) |
|
172 | blob = vfs.read(oid) | |
173 | if verify: |
|
173 | if verify: | |
174 | _verify(oid, blob) |
|
174 | _verify(oid, blob) | |
175 | return blob |
|
175 | return blob | |
176 |
|
176 | |||
177 | def has(self, oid): |
|
177 | def has(self, oid): | |
178 | """Returns True if the local blobstore contains the requested blob, |
|
178 | """Returns True if the local blobstore contains the requested blob, | |
179 | False otherwise.""" |
|
179 | False otherwise.""" | |
180 | return self.cachevfs.exists(oid) or self.vfs.exists(oid) |
|
180 | return self.cachevfs.exists(oid) or self.vfs.exists(oid) | |
181 |
|
181 | |||
182 | class _gitlfsremote(object): |
|
182 | class _gitlfsremote(object): | |
183 |
|
183 | |||
184 | def __init__(self, repo, url): |
|
184 | def __init__(self, repo, url): | |
185 | ui = repo.ui |
|
185 | ui = repo.ui | |
186 | self.ui = ui |
|
186 | self.ui = ui | |
187 | baseurl, authinfo = url.authinfo() |
|
187 | baseurl, authinfo = url.authinfo() | |
188 | self.baseurl = baseurl.rstrip('/') |
|
188 | self.baseurl = baseurl.rstrip('/') | |
189 | useragent = repo.ui.config('experimental', 'lfs.user-agent') |
|
189 | useragent = repo.ui.config('experimental', 'lfs.user-agent') | |
190 | if not useragent: |
|
190 | if not useragent: | |
191 | useragent = 'git-lfs/2.3.4 (Mercurial %s)' % util.version() |
|
191 | useragent = 'git-lfs/2.3.4 (Mercurial %s)' % util.version() | |
192 | self.urlopener = urlmod.opener(ui, authinfo, useragent) |
|
192 | self.urlopener = urlmod.opener(ui, authinfo, useragent) | |
193 | self.retry = ui.configint('lfs', 'retry') |
|
193 | self.retry = ui.configint('lfs', 'retry') | |
194 |
|
194 | |||
195 | def writebatch(self, pointers, fromstore): |
|
195 | def writebatch(self, pointers, fromstore): | |
196 | """Batch upload from local to remote blobstore.""" |
|
196 | """Batch upload from local to remote blobstore.""" | |
197 | self._batch(pointers, fromstore, 'upload') |
|
197 | self._batch(pointers, fromstore, 'upload') | |
198 |
|
198 | |||
199 | def readbatch(self, pointers, tostore): |
|
199 | def readbatch(self, pointers, tostore): | |
200 | """Batch download from remote to local blostore.""" |
|
200 | """Batch download from remote to local blostore.""" | |
201 | self._batch(pointers, tostore, 'download') |
|
201 | self._batch(pointers, tostore, 'download') | |
202 |
|
202 | |||
203 | def _batchrequest(self, pointers, action): |
|
203 | def _batchrequest(self, pointers, action): | |
204 | """Get metadata about objects pointed by pointers for given action |
|
204 | """Get metadata about objects pointed by pointers for given action | |
205 |
|
205 | |||
206 | Return decoded JSON object like {'objects': [{'oid': '', 'size': 1}]} |
|
206 | Return decoded JSON object like {'objects': [{'oid': '', 'size': 1}]} | |
207 | See https://github.com/git-lfs/git-lfs/blob/master/docs/api/batch.md |
|
207 | See https://github.com/git-lfs/git-lfs/blob/master/docs/api/batch.md | |
208 | """ |
|
208 | """ | |
209 | objects = [{'oid': p.oid(), 'size': p.size()} for p in pointers] |
|
209 | objects = [{'oid': p.oid(), 'size': p.size()} for p in pointers] | |
210 | requestdata = json.dumps({ |
|
210 | requestdata = json.dumps({ | |
211 | 'objects': objects, |
|
211 | 'objects': objects, | |
212 | 'operation': action, |
|
212 | 'operation': action, | |
213 | }) |
|
213 | }) | |
214 | batchreq = util.urlreq.request('%s/objects/batch' % self.baseurl, |
|
214 | batchreq = util.urlreq.request('%s/objects/batch' % self.baseurl, | |
215 | data=requestdata) |
|
215 | data=requestdata) | |
216 | batchreq.add_header('Accept', 'application/vnd.git-lfs+json') |
|
216 | batchreq.add_header('Accept', 'application/vnd.git-lfs+json') | |
217 | batchreq.add_header('Content-Type', 'application/vnd.git-lfs+json') |
|
217 | batchreq.add_header('Content-Type', 'application/vnd.git-lfs+json') | |
218 | try: |
|
218 | try: | |
219 | rawjson = self.urlopener.open(batchreq).read() |
|
219 | rawjson = self.urlopener.open(batchreq).read() | |
220 | except util.urlerr.httperror as ex: |
|
220 | except util.urlerr.httperror as ex: | |
221 | raise LfsRemoteError(_('LFS HTTP error: %s (action=%s)') |
|
221 | raise LfsRemoteError(_('LFS HTTP error: %s (action=%s)') | |
222 | % (ex, action)) |
|
222 | % (ex, action)) | |
223 | try: |
|
223 | try: | |
224 | response = json.loads(rawjson) |
|
224 | response = json.loads(rawjson) | |
225 | except ValueError: |
|
225 | except ValueError: | |
226 | raise LfsRemoteError(_('LFS server returns invalid JSON: %s') |
|
226 | raise LfsRemoteError(_('LFS server returns invalid JSON: %s') | |
227 | % rawjson) |
|
227 | % rawjson) | |
228 | return response |
|
228 | return response | |
229 |
|
229 | |||
230 | def _checkforservererror(self, pointers, responses, action): |
|
230 | def _checkforservererror(self, pointers, responses, action): | |
231 | """Scans errors from objects |
|
231 | """Scans errors from objects | |
232 |
|
232 | |||
233 | Raises LfsRemoteError if any objects have an error""" |
|
233 | Raises LfsRemoteError if any objects have an error""" | |
234 | for response in responses: |
|
234 | for response in responses: | |
235 | # The server should return 404 when objects cannot be found. Some |
|
235 | # The server should return 404 when objects cannot be found. Some | |
236 | # server implementation (ex. lfs-test-server) does not set "error" |
|
236 | # server implementation (ex. lfs-test-server) does not set "error" | |
237 | # but just removes "download" from "actions". Treat that case |
|
237 | # but just removes "download" from "actions". Treat that case | |
238 | # as the same as 404 error. |
|
238 | # as the same as 404 error. | |
239 | notfound = (response.get('error', {}).get('code') == 404 |
|
239 | notfound = (response.get('error', {}).get('code') == 404 | |
240 | or (action == 'download' |
|
240 | or (action == 'download' | |
241 | and action not in response.get('actions', []))) |
|
241 | and action not in response.get('actions', []))) | |
242 | if notfound: |
|
242 | if notfound: | |
243 | ptrmap = {p.oid(): p for p in pointers} |
|
243 | ptrmap = {p.oid(): p for p in pointers} | |
244 | p = ptrmap.get(response['oid'], None) |
|
244 | p = ptrmap.get(response['oid'], None) | |
245 | if p: |
|
245 | if p: | |
246 | filename = getattr(p, 'filename', 'unknown') |
|
246 | filename = getattr(p, 'filename', 'unknown') | |
247 | raise LfsRemoteError( |
|
247 | raise LfsRemoteError( | |
248 | _(('LFS server error. Remote object ' |
|
248 | _(('LFS server error. Remote object ' | |
249 | 'for "%s" not found: %r')) % (filename, response)) |
|
249 | 'for "%s" not found: %r')) % (filename, response)) | |
250 | else: |
|
250 | else: | |
251 | raise LfsRemoteError( |
|
251 | raise LfsRemoteError( | |
252 | _('LFS server error. Unsolicited response for oid %s') |
|
252 | _('LFS server error. Unsolicited response for oid %s') | |
253 | % response['oid']) |
|
253 | % response['oid']) | |
254 | if 'error' in response: |
|
254 | if 'error' in response: | |
255 | raise LfsRemoteError(_('LFS server error: %r') % response) |
|
255 | raise LfsRemoteError(_('LFS server error: %r') % response) | |
256 |
|
256 | |||
257 | def _extractobjects(self, response, pointers, action): |
|
257 | def _extractobjects(self, response, pointers, action): | |
258 | """extract objects from response of the batch API |
|
258 | """extract objects from response of the batch API | |
259 |
|
259 | |||
260 | response: parsed JSON object returned by batch API |
|
260 | response: parsed JSON object returned by batch API | |
261 | return response['objects'] filtered by action |
|
261 | return response['objects'] filtered by action | |
262 | raise if any object has an error |
|
262 | raise if any object has an error | |
263 | """ |
|
263 | """ | |
264 | # Scan errors from objects - fail early |
|
264 | # Scan errors from objects - fail early | |
265 | objects = response.get('objects', []) |
|
265 | objects = response.get('objects', []) | |
266 | self._checkforservererror(pointers, objects, action) |
|
266 | self._checkforservererror(pointers, objects, action) | |
267 |
|
267 | |||
268 | # Filter objects with given action. Practically, this skips uploading |
|
268 | # Filter objects with given action. Practically, this skips uploading | |
269 | # objects which exist in the server. |
|
269 | # objects which exist in the server. | |
270 | filteredobjects = [o for o in objects if action in o.get('actions', [])] |
|
270 | filteredobjects = [o for o in objects if action in o.get('actions', [])] | |
271 |
|
271 | |||
272 | return filteredobjects |
|
272 | return filteredobjects | |
273 |
|
273 | |||
274 | def _basictransfer(self, obj, action, localstore): |
|
274 | def _basictransfer(self, obj, action, localstore): | |
275 | """Download or upload a single object using basic transfer protocol |
|
275 | """Download or upload a single object using basic transfer protocol | |
276 |
|
276 | |||
277 | obj: dict, an object description returned by batch API |
|
277 | obj: dict, an object description returned by batch API | |
278 | action: string, one of ['upload', 'download'] |
|
278 | action: string, one of ['upload', 'download'] | |
279 | localstore: blobstore.local |
|
279 | localstore: blobstore.local | |
280 |
|
280 | |||
281 | See https://github.com/git-lfs/git-lfs/blob/master/docs/api/\ |
|
281 | See https://github.com/git-lfs/git-lfs/blob/master/docs/api/\ | |
282 | basic-transfers.md |
|
282 | basic-transfers.md | |
283 | """ |
|
283 | """ | |
284 | oid = str(obj['oid']) |
|
284 | oid = str(obj['oid']) | |
285 |
|
285 | |||
286 | href = str(obj['actions'][action].get('href')) |
|
286 | href = str(obj['actions'][action].get('href')) | |
287 | headers = obj['actions'][action].get('header', {}).items() |
|
287 | headers = obj['actions'][action].get('header', {}).items() | |
288 |
|
288 | |||
289 | request = util.urlreq.request(href) |
|
289 | request = util.urlreq.request(href) | |
290 | if action == 'upload': |
|
290 | if action == 'upload': | |
291 | # If uploading blobs, read data from local blobstore. |
|
291 | # If uploading blobs, read data from local blobstore. | |
292 | with localstore.open(oid) as fp: |
|
292 | with localstore.open(oid) as fp: | |
293 | _verifyfile(oid, fp) |
|
293 | _verifyfile(oid, fp) | |
294 | request.data = filewithprogress(localstore.open(oid), None) |
|
294 | request.data = filewithprogress(localstore.open(oid), None) | |
295 | request.get_method = lambda: 'PUT' |
|
295 | request.get_method = lambda: 'PUT' | |
296 |
|
296 | |||
297 | for k, v in headers: |
|
297 | for k, v in headers: | |
298 | request.add_header(k, v) |
|
298 | request.add_header(k, v) | |
299 |
|
299 | |||
300 | response = b'' |
|
300 | response = b'' | |
301 | try: |
|
301 | try: | |
302 | req = self.urlopener.open(request) |
|
302 | req = self.urlopener.open(request) | |
303 | if action == 'download': |
|
303 | if action == 'download': | |
304 | # If downloading blobs, store downloaded data to local blobstore |
|
304 | # If downloading blobs, store downloaded data to local blobstore | |
305 | localstore.download(oid, req) |
|
305 | localstore.download(oid, req) | |
306 | else: |
|
306 | else: | |
307 | while True: |
|
307 | while True: | |
308 | data = req.read(1048576) |
|
308 | data = req.read(1048576) | |
309 | if not data: |
|
309 | if not data: | |
310 | break |
|
310 | break | |
311 | response += data |
|
311 | response += data | |
312 | if response: |
|
312 | if response: | |
313 | self.ui.debug('lfs %s response: %s' % (action, response)) |
|
313 | self.ui.debug('lfs %s response: %s' % (action, response)) | |
314 | except util.urlerr.httperror as ex: |
|
314 | except util.urlerr.httperror as ex: | |
315 | if self.ui.debugflag: |
|
315 | if self.ui.debugflag: | |
316 | self.ui.debug('%s: %s' % (oid, ex.read())) |
|
316 | self.ui.debug('%s: %s\n' % (oid, ex.read())) | |
317 | raise LfsRemoteError(_('HTTP error: %s (oid=%s, action=%s)') |
|
317 | raise LfsRemoteError(_('HTTP error: %s (oid=%s, action=%s)') | |
318 | % (ex, oid, action)) |
|
318 | % (ex, oid, action)) | |
319 |
|
319 | |||
320 | def _batch(self, pointers, localstore, action): |
|
320 | def _batch(self, pointers, localstore, action): | |
321 | if action not in ['upload', 'download']: |
|
321 | if action not in ['upload', 'download']: | |
322 | raise error.ProgrammingError('invalid Git-LFS action: %s' % action) |
|
322 | raise error.ProgrammingError('invalid Git-LFS action: %s' % action) | |
323 |
|
323 | |||
324 | response = self._batchrequest(pointers, action) |
|
324 | response = self._batchrequest(pointers, action) | |
325 | objects = self._extractobjects(response, pointers, action) |
|
325 | objects = self._extractobjects(response, pointers, action) | |
326 | total = sum(x.get('size', 0) for x in objects) |
|
326 | total = sum(x.get('size', 0) for x in objects) | |
327 | sizes = {} |
|
327 | sizes = {} | |
328 | for obj in objects: |
|
328 | for obj in objects: | |
329 | sizes[obj.get('oid')] = obj.get('size', 0) |
|
329 | sizes[obj.get('oid')] = obj.get('size', 0) | |
330 | topic = {'upload': _('lfs uploading'), |
|
330 | topic = {'upload': _('lfs uploading'), | |
331 | 'download': _('lfs downloading')}[action] |
|
331 | 'download': _('lfs downloading')}[action] | |
332 | if len(objects) > 1: |
|
332 | if len(objects) > 1: | |
333 | self.ui.note(_('lfs: need to transfer %d objects (%s)\n') |
|
333 | self.ui.note(_('lfs: need to transfer %d objects (%s)\n') | |
334 | % (len(objects), util.bytecount(total))) |
|
334 | % (len(objects), util.bytecount(total))) | |
335 | self.ui.progress(topic, 0, total=total) |
|
335 | self.ui.progress(topic, 0, total=total) | |
336 | def transfer(chunk): |
|
336 | def transfer(chunk): | |
337 | for obj in chunk: |
|
337 | for obj in chunk: | |
338 | objsize = obj.get('size', 0) |
|
338 | objsize = obj.get('size', 0) | |
339 | if self.ui.verbose: |
|
339 | if self.ui.verbose: | |
340 | if action == 'download': |
|
340 | if action == 'download': | |
341 | msg = _('lfs: downloading %s (%s)\n') |
|
341 | msg = _('lfs: downloading %s (%s)\n') | |
342 | elif action == 'upload': |
|
342 | elif action == 'upload': | |
343 | msg = _('lfs: uploading %s (%s)\n') |
|
343 | msg = _('lfs: uploading %s (%s)\n') | |
344 | self.ui.note(msg % (obj.get('oid'), |
|
344 | self.ui.note(msg % (obj.get('oid'), | |
345 | util.bytecount(objsize))) |
|
345 | util.bytecount(objsize))) | |
346 | retry = self.retry |
|
346 | retry = self.retry | |
347 | while True: |
|
347 | while True: | |
348 | try: |
|
348 | try: | |
349 | self._basictransfer(obj, action, localstore) |
|
349 | self._basictransfer(obj, action, localstore) | |
350 | yield 1, obj.get('oid') |
|
350 | yield 1, obj.get('oid') | |
351 | break |
|
351 | break | |
352 | except socket.error as ex: |
|
352 | except socket.error as ex: | |
353 | if retry > 0: |
|
353 | if retry > 0: | |
354 | self.ui.note( |
|
354 | self.ui.note( | |
355 | _('lfs: failed: %r (remaining retry %d)\n') |
|
355 | _('lfs: failed: %r (remaining retry %d)\n') | |
356 | % (ex, retry)) |
|
356 | % (ex, retry)) | |
357 | retry -= 1 |
|
357 | retry -= 1 | |
358 | continue |
|
358 | continue | |
359 | raise |
|
359 | raise | |
360 |
|
360 | |||
361 | # Until https multiplexing gets sorted out |
|
361 | # Until https multiplexing gets sorted out | |
362 | if self.ui.configbool('experimental', 'lfs.worker-enable'): |
|
362 | if self.ui.configbool('experimental', 'lfs.worker-enable'): | |
363 | oids = worker.worker(self.ui, 0.1, transfer, (), |
|
363 | oids = worker.worker(self.ui, 0.1, transfer, (), | |
364 | sorted(objects, key=lambda o: o.get('oid'))) |
|
364 | sorted(objects, key=lambda o: o.get('oid'))) | |
365 | else: |
|
365 | else: | |
366 | oids = transfer(sorted(objects, key=lambda o: o.get('oid'))) |
|
366 | oids = transfer(sorted(objects, key=lambda o: o.get('oid'))) | |
367 |
|
367 | |||
368 | processed = 0 |
|
368 | processed = 0 | |
369 | for _one, oid in oids: |
|
369 | for _one, oid in oids: | |
370 | processed += sizes[oid] |
|
370 | processed += sizes[oid] | |
371 | self.ui.progress(topic, processed, total=total) |
|
371 | self.ui.progress(topic, processed, total=total) | |
372 | self.ui.note(_('lfs: processed: %s\n') % oid) |
|
372 | self.ui.note(_('lfs: processed: %s\n') % oid) | |
373 | self.ui.progress(topic, pos=None, total=total) |
|
373 | self.ui.progress(topic, pos=None, total=total) | |
374 |
|
374 | |||
375 | def __del__(self): |
|
375 | def __del__(self): | |
376 | # copied from mercurial/httppeer.py |
|
376 | # copied from mercurial/httppeer.py | |
377 | urlopener = getattr(self, 'urlopener', None) |
|
377 | urlopener = getattr(self, 'urlopener', None) | |
378 | if urlopener: |
|
378 | if urlopener: | |
379 | for h in urlopener.handlers: |
|
379 | for h in urlopener.handlers: | |
380 | h.close() |
|
380 | h.close() | |
381 | getattr(h, "close_all", lambda : None)() |
|
381 | getattr(h, "close_all", lambda : None)() | |
382 |
|
382 | |||
383 | class _dummyremote(object): |
|
383 | class _dummyremote(object): | |
384 | """Dummy store storing blobs to temp directory.""" |
|
384 | """Dummy store storing blobs to temp directory.""" | |
385 |
|
385 | |||
386 | def __init__(self, repo, url): |
|
386 | def __init__(self, repo, url): | |
387 | fullpath = repo.vfs.join('lfs', url.path) |
|
387 | fullpath = repo.vfs.join('lfs', url.path) | |
388 | self.vfs = lfsvfs(fullpath) |
|
388 | self.vfs = lfsvfs(fullpath) | |
389 |
|
389 | |||
390 | def writebatch(self, pointers, fromstore): |
|
390 | def writebatch(self, pointers, fromstore): | |
391 | for p in pointers: |
|
391 | for p in pointers: | |
392 | content = fromstore.read(p.oid(), verify=True) |
|
392 | content = fromstore.read(p.oid(), verify=True) | |
393 | with self.vfs(p.oid(), 'wb', atomictemp=True) as fp: |
|
393 | with self.vfs(p.oid(), 'wb', atomictemp=True) as fp: | |
394 | fp.write(content) |
|
394 | fp.write(content) | |
395 |
|
395 | |||
396 | def readbatch(self, pointers, tostore): |
|
396 | def readbatch(self, pointers, tostore): | |
397 | for p in pointers: |
|
397 | for p in pointers: | |
398 | with self.vfs(p.oid(), 'rb') as fp: |
|
398 | with self.vfs(p.oid(), 'rb') as fp: | |
399 | tostore.download(p.oid(), fp) |
|
399 | tostore.download(p.oid(), fp) | |
400 |
|
400 | |||
401 | class _nullremote(object): |
|
401 | class _nullremote(object): | |
402 | """Null store storing blobs to /dev/null.""" |
|
402 | """Null store storing blobs to /dev/null.""" | |
403 |
|
403 | |||
404 | def __init__(self, repo, url): |
|
404 | def __init__(self, repo, url): | |
405 | pass |
|
405 | pass | |
406 |
|
406 | |||
407 | def writebatch(self, pointers, fromstore): |
|
407 | def writebatch(self, pointers, fromstore): | |
408 | pass |
|
408 | pass | |
409 |
|
409 | |||
410 | def readbatch(self, pointers, tostore): |
|
410 | def readbatch(self, pointers, tostore): | |
411 | pass |
|
411 | pass | |
412 |
|
412 | |||
413 | class _promptremote(object): |
|
413 | class _promptremote(object): | |
414 | """Prompt user to set lfs.url when accessed.""" |
|
414 | """Prompt user to set lfs.url when accessed.""" | |
415 |
|
415 | |||
416 | def __init__(self, repo, url): |
|
416 | def __init__(self, repo, url): | |
417 | pass |
|
417 | pass | |
418 |
|
418 | |||
419 | def writebatch(self, pointers, fromstore, ui=None): |
|
419 | def writebatch(self, pointers, fromstore, ui=None): | |
420 | self._prompt() |
|
420 | self._prompt() | |
421 |
|
421 | |||
422 | def readbatch(self, pointers, tostore, ui=None): |
|
422 | def readbatch(self, pointers, tostore, ui=None): | |
423 | self._prompt() |
|
423 | self._prompt() | |
424 |
|
424 | |||
425 | def _prompt(self): |
|
425 | def _prompt(self): | |
426 | raise error.Abort(_('lfs.url needs to be configured')) |
|
426 | raise error.Abort(_('lfs.url needs to be configured')) | |
427 |
|
427 | |||
428 | _storemap = { |
|
428 | _storemap = { | |
429 | 'https': _gitlfsremote, |
|
429 | 'https': _gitlfsremote, | |
430 | 'http': _gitlfsremote, |
|
430 | 'http': _gitlfsremote, | |
431 | 'file': _dummyremote, |
|
431 | 'file': _dummyremote, | |
432 | 'null': _nullremote, |
|
432 | 'null': _nullremote, | |
433 | None: _promptremote, |
|
433 | None: _promptremote, | |
434 | } |
|
434 | } | |
435 |
|
435 | |||
436 | def _verify(oid, content): |
|
436 | def _verify(oid, content): | |
437 | realoid = hashlib.sha256(content).hexdigest() |
|
437 | realoid = hashlib.sha256(content).hexdigest() | |
438 | if realoid != oid: |
|
438 | if realoid != oid: | |
439 | raise error.Abort(_('detected corrupt lfs object: %s') % oid, |
|
439 | raise error.Abort(_('detected corrupt lfs object: %s') % oid, | |
440 | hint=_('run hg verify')) |
|
440 | hint=_('run hg verify')) | |
441 |
|
441 | |||
442 | def _verifyfile(oid, fp): |
|
442 | def _verifyfile(oid, fp): | |
443 | sha256 = hashlib.sha256() |
|
443 | sha256 = hashlib.sha256() | |
444 | while True: |
|
444 | while True: | |
445 | data = fp.read(1024 * 1024) |
|
445 | data = fp.read(1024 * 1024) | |
446 | if not data: |
|
446 | if not data: | |
447 | break |
|
447 | break | |
448 | sha256.update(data) |
|
448 | sha256.update(data) | |
449 | realoid = sha256.hexdigest() |
|
449 | realoid = sha256.hexdigest() | |
450 | if realoid != oid: |
|
450 | if realoid != oid: | |
451 | raise error.Abort(_('detected corrupt lfs object: %s') % oid, |
|
451 | raise error.Abort(_('detected corrupt lfs object: %s') % oid, | |
452 | hint=_('run hg verify')) |
|
452 | hint=_('run hg verify')) | |
453 |
|
453 | |||
454 | def remote(repo): |
|
454 | def remote(repo): | |
455 | """remotestore factory. return a store in _storemap depending on config""" |
|
455 | """remotestore factory. return a store in _storemap depending on config""" | |
456 | url = util.url(repo.ui.config('lfs', 'url') or '') |
|
456 | url = util.url(repo.ui.config('lfs', 'url') or '') | |
457 | scheme = url.scheme |
|
457 | scheme = url.scheme | |
458 | if scheme not in _storemap: |
|
458 | if scheme not in _storemap: | |
459 | raise error.Abort(_('lfs: unknown url scheme: %s') % scheme) |
|
459 | raise error.Abort(_('lfs: unknown url scheme: %s') % scheme) | |
460 | return _storemap[scheme](repo, url) |
|
460 | return _storemap[scheme](repo, url) | |
461 |
|
461 | |||
462 | class LfsRemoteError(error.RevlogError): |
|
462 | class LfsRemoteError(error.RevlogError): | |
463 | pass |
|
463 | pass |
General Comments 0
You need to be logged in to leave comments.
Login now