2 import sys, stat, time, math
3 from bup import hashsplit, git, options, index, client
4 from bup.helpers import *
8 bup save [-tc] [-n name] <filenames...>
10 r,remote= hostname:/path/to/repo of remote repository
11 t,tree output a tree id
12 c,commit output a commit id
13 n,name= name of backup set to update (if any)
14 d,date= date for the commit (seconds since the epoch)
15 v,verbose increase log output (can be used more than once)
16 q,quiet don't show progress meter
17 smaller= only back up files smaller than n bytes
18 bwlimit= maximum bytes/sec to transmit to server
19 f,indexfile= the name of the index file (normally BUP_DIR/bupindex)
20 strip strips the path to every filename given
21 strip-path= path-prefix to be stripped when saving
22 graft= a graft point *old_path*=*new_path* (can be used morethan once)
24 o = options.Options('bup save', optspec)
25 (opt, flags, extra) = o.parse(sys.argv[1:])
27 git.check_repo_or_die()
28 if not (opt.tree or opt.commit or opt.name):
29 o.fatal("use one or more of -t, -c, -n")
31 o.fatal("no filenames given")
33 opt.progress = (istty and not opt.quiet)
34 opt.smaller = parse_num(opt.smaller or 0)
36 client.bwlimit = parse_num(opt.bwlimit)
39 date = parse_date_or_fatal(opt.date, o.fatal)
43 if opt.strip and opt.strip_path:
44 o.fatal("--strip is incompatible with --strip-path")
49 o.fatal("--strip is incompatible with --graft")
52 o.fatal("--strip-path is incompatible with --graft")
54 for (option, parameter) in flags:
55 if option == "--graft":
56 splitted_parameter = parameter.split('=')
57 if len(splitted_parameter) != 2:
58 o.fatal("a graft point must be of the form old_path=new_path")
59 graft_points.append((realpath(splitted_parameter[0]),
60 realpath(splitted_parameter[1])))
62 is_reverse = os.environ.get('BUP_SERVER_REVERSE')
63 if is_reverse and opt.remote:
64 o.fatal("don't use -r in reverse mode; it's automatic")
66 if opt.name and opt.name.startswith('.'):
67 o.fatal("'%s' is not a valid branch name" % opt.name)
68 refname = opt.name and 'refs/heads/%s' % opt.name or None
69 if opt.remote or is_reverse:
70 cli = client.Client(opt.remote)
71 oldref = refname and cli.read_ref(refname) or None
72 w = cli.new_packwriter()
75 oldref = refname and git.read_ref(refname) or None
97 assert(len(parts) >= 1)
99 shalist = shalists.pop()
100 tree = force_tree or w.new_tree(shalist)
102 shalists[-1].append(('40000',
103 git.mangle_name(part, 040000, 40000),
105 else: # this was the toplevel, so put it back for sanity
106 shalists.append(shalist)
111 def progress_report(n):
112 global count, subcount, lastremain, lastprint
114 cc = count + subcount
115 pct = total and (cc*100.0/total) or 0
117 elapsed = now - tstart
118 kps = elapsed and int(cc/1024./elapsed)
119 kps_frac = 10 ** int(math.log(kps+1, 10) - 1)
120 kps = int(kps/kps_frac)*kps_frac
122 remain = elapsed*1.0/cc * (total-cc)
125 if (lastremain and (remain > lastremain)
126 and ((remain - lastremain)/lastremain < 0.05)):
130 hours = int(remain/60/60)
131 mins = int(remain/60 - hours*60)
132 secs = int(remain - hours*60*60 - mins*60)
137 kpsstr = '%dk/s' % kps
139 remainstr = '%dh%dm' % (hours, mins)
141 remainstr = '%dm%d' % (mins, secs)
143 remainstr = '%ds' % secs
144 if now - lastprint > 0.1:
145 progress('Saving: %.2f%% (%d/%dk, %d/%d files) %s %s\r'
146 % (pct, cc/1024, total/1024, fcount, ftotal,
157 indexfile = opt.indexfile or git.repo('bupindex')
158 r = index.Reader(indexfile)
160 def already_saved(ent):
161 return ent.is_valid() and w.exists(ent.sha) and ent.sha
163 def wantrecurse_pre(ent):
164 return not already_saved(ent)
166 def wantrecurse_during(ent):
167 return not already_saved(ent) or ent.sha_missing()
171 for (transname,ent) in r.filter(extra, wantrecurse=wantrecurse_pre):
172 if not (ftotal % 10024):
173 progress('Reading index: %d\r' % ftotal)
174 exists = ent.exists()
175 hashvalid = already_saved(ent)
176 ent.set_sha_missing(not hashvalid)
177 if not opt.smaller or ent.size < opt.smaller:
178 if exists and not hashvalid:
181 progress('Reading index: %d, done.\n' % ftotal)
182 hashsplit.progress_callback = progress_report
185 count = subcount = fcount = 0
188 for (transname,ent) in r.filter(extra, wantrecurse=wantrecurse_during):
189 (dir, file) = os.path.split(ent.name)
190 exists = (ent.flags & index.IX_EXISTS)
191 hashvalid = already_saved(ent)
192 wasmissing = ent.sha_missing()
198 if ent.sha == index.EMPTY_SHA:
205 vlog('%s %-70s\n' % (status, ent.name))
206 elif not stat.S_ISDIR(ent.mode) and lastdir != dir:
207 if not lastdir.startswith(dir):
208 vlog('%s %-70s\n' % (status, os.path.join(dir, '')))
217 if opt.smaller and ent.size >= opt.smaller:
218 if exists and not hashvalid:
219 add_error('skipping large file "%s"' % ent.name)
220 lastskip_name = ent.name
223 assert(dir.startswith('/'))
225 stripped_base_path = strip_base_path(dir, extra)
226 dirp = stripped_base_path.split('/')
228 dirp = strip_path(opt.strip_path, dir).split('/')
230 grafted = graft_path(graft_points, dir)
231 dirp = grafted.split('/')
233 dirp = dir.split('/')
235 _pop(force_tree = None)
237 for part in dirp[len(parts):]:
241 # no filename portion means this is a subdir. But
242 # sub/parentdirectories already handled in the pop/push() part above.
243 oldtree = already_saved(ent) # may be None
244 newtree = _pop(force_tree = oldtree)
246 if lastskip_name and lastskip_name.startswith(ent.name):
249 ent.validate(040000, newtree)
251 if exists and wasmissing:
255 # it's not a directory
258 mode = '%o' % ent.gitmode
260 shalists[-1].append((mode,
261 git.mangle_name(file, ent.mode, ent.gitmode),
264 if stat.S_ISREG(ent.mode):
266 f = hashsplit.open_noatime(ent.name)
269 lastskip_name = ent.name
272 lastskip_name = ent.name
275 (mode, id) = hashsplit.split_to_blob_or_tree(w, [f],
276 keep_boundaries=False)
278 add_error('%s: %s' % (ent.name, e))
279 lastskip_name = ent.name
281 if stat.S_ISDIR(ent.mode):
282 assert(0) # handled above
283 elif stat.S_ISLNK(ent.mode):
285 rl = os.readlink(ent.name)
288 lastskip_name = ent.name
291 lastskip_name = ent.name
293 (mode, id) = ('120000', w.new_blob(rl))
295 add_error(Exception('skipping special file "%s"' % ent.name))
296 lastskip_name = ent.name
298 ent.validate(int(mode, 8), id)
300 shalists[-1].append((mode,
301 git.mangle_name(file, ent.mode, ent.gitmode),
303 if exists and wasmissing:
309 pct = total and count*100.0/total or 100
310 progress('Saving: %.2f%% (%d/%dk, %d/%d files), done. \n'
311 % (pct, count/1024, total/1024, fcount, ftotal))
313 while len(parts) > 1:
314 _pop(force_tree = None)
315 assert(len(shalists) == 1)
316 tree = w.new_tree(shalists[-1])
318 print tree.encode('hex')
319 if opt.commit or opt.name:
320 msg = 'bup save\n\nGenerated by command:\n%r' % sys.argv
321 commit = w.new_commit(oldref, tree, date, msg)
323 print commit.encode('hex')
325 w.close() # must close before we can update the ref
329 cli.update_ref(refname, commit, oldref)
331 git.update_ref(refname, commit, oldref)
337 log('WARNING: %d errors encountered while saving.\n' % len(saved_errors))