summaryrefslogtreecommitdiffstats
path: root/Demo/pdist/rcvs.py
blob: 8b8bae63b930599c7a1898effde4c757d0948f9e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
#! /usr/bin/env python

"""Remote CVS -- command line interface"""

# XXX To do:
#
# Bugs:
# - if the remote file is deleted, "rcvs update" will fail
#
# Functionality:
# - cvs rm
# - descend into directories (alraedy done for update)
# - conflict resolution
# - other relevant commands?
# - branches
#
# - Finesses:
# - retain file mode's x bits
# - complain when "nothing known about filename"
# - edit log message the way CVS lets you edit it
# - cvs diff -rREVA -rREVB
# - send mail the way CVS sends it
#
# Performance:
# - cache remote checksums (for every revision ever seen!)
# - translate symbolic revisions to numeric revisions
#
# Reliability:
# - remote locking
#
# Security:
# - Authenticated RPC?


from cvslib import CVS, File
import md5
import os
import string
import sys
from cmdfw import CommandFrameWork


DEF_LOCAL = 1                           # Default -l


class MyFile(File):

    def action(self):
        """Return a code indicating the update status of this file.

        The possible return values are:

        '=' -- everything's fine
        '0' -- file doesn't exist anywhere
        '?' -- exists locally only
        'A' -- new locally
        'R' -- deleted locally
        'U' -- changed remotely, no changes locally
               (includes new remotely or deleted remotely)
        'M' -- changed locally, no changes remotely
        'C' -- conflict: changed locally as well as remotely
               (includes cases where the file has been added
               or removed locally and remotely)
        'D' -- deleted remotely
        'N' -- new remotely
        'r' -- get rid of entry
        'c' -- create entry
        'u' -- update entry

        (and probably others :-)
        """
        if not self.lseen:
            self.getlocal()
        if not self.rseen:
            self.getremote()
        if not self.eseen:
            if not self.lsum:
                if not self.rsum: return '0' # Never heard of
                else:
                    return 'N' # New remotely
            else: # self.lsum
                if not self.rsum: return '?' # Local only
                # Local and remote, but no entry
                if self.lsum == self.rsum:
                    return 'c' # Restore entry only
                else: return 'C' # Real conflict
        else: # self.eseen
            if not self.lsum:
                if self.edeleted:
                    if self.rsum: return 'R' # Removed
                    else: return 'r' # Get rid of entry
                else: # not self.edeleted
                    if self.rsum:
                        print "warning:",
                        print self.file,
                        print "was lost"
                        return 'U'
                    else: return 'r' # Get rid of entry
            else: # self.lsum
                if not self.rsum:
                    if self.enew: return 'A' # New locally
                    else: return 'D' # Deleted remotely
                else: # self.rsum
                    if self.enew:
                        if self.lsum == self.rsum:
                            return 'u'
                        else:
                            return 'C'
                    if self.lsum == self.esum:
                        if self.esum == self.rsum:
                            return '='
                        else:
                            return 'U'
                    elif self.esum == self.rsum:
                        return 'M'
                    elif self.lsum == self.rsum:
                        return 'u'
                    else:
                        return 'C'

    def update(self):
        code = self.action()
        if code == '=': return
        print code, self.file
        if code in ('U', 'N'):
            self.get()
        elif code == 'C':
            print "%s: conflict resolution not yet implemented" % \
                  self.file
        elif code == 'D':
            remove(self.file)
            self.eseen = 0
        elif code == 'r':
            self.eseen = 0
        elif code in ('c', 'u'):
            self.eseen = 1
            self.erev = self.rrev
            self.enew = 0
            self.edeleted = 0
            self.esum = self.rsum
            self.emtime, self.ectime = os.stat(self.file)[-2:]
            self.extra = ''

    def commit(self, message = ""):
        code = self.action()
        if code in ('A', 'M'):
            self.put(message)
            return 1
        elif code == 'R':
            print "%s: committing removes not yet implemented" % \
                  self.file
        elif code == 'C':
            print "%s: conflict resolution not yet implemented" % \
                  self.file

    def diff(self, opts = []):
        self.action()           # To update lseen, rseen
        flags = ''
        rev = self.rrev
        # XXX should support two rev options too!
        for o, a in opts:
            if o == '-r':
                rev = a
            else:
                flags = flags + ' ' + o + a
        if rev == self.rrev and self.lsum == self.rsum:
            return
        flags = flags[1:]
        fn = self.file
        data = self.proxy.get((fn, rev))
        sum = md5.new(data).digest()
        if self.lsum == sum:
            return
        import tempfile
        tf = tempfile.NamedTemporaryFile()
        tf.write(data)
        tf.flush()
        print 'diff %s -r%s %s' % (flags, rev, fn)
        sts = os.system('diff %s %s %s' % (flags, tf.name, fn))
        if sts:
            print '='*70

    def commitcheck(self):
        return self.action() != 'C'

    def put(self, message = ""):
        print "Checking in", self.file, "..."
        data = open(self.file).read()
        if not self.enew:
            self.proxy.lock(self.file)
        messages = self.proxy.put(self.file, data, message)
        if messages:
            print messages
        self.setentry(self.proxy.head(self.file), self.lsum)

    def get(self):
        data = self.proxy.get(self.file)
        f = open(self.file, 'w')
        f.write(data)
        f.close()
        self.setentry(self.rrev, self.rsum)

    def log(self, otherflags):
        print self.proxy.log(self.file, otherflags)

    def add(self):
        self.eseen = 0          # While we're hacking...
        self.esum = self.lsum
        self.emtime, self.ectime = 0, 0
        self.erev = ''
        self.enew = 1
        self.edeleted = 0
        self.eseen = 1          # Done
        self.extra = ''

    def setentry(self, erev, esum):
        self.eseen = 0          # While we're hacking...
        self.esum = esum
        self.emtime, self.ectime = os.stat(self.file)[-2:]
        self.erev = erev
        self.enew = 0
        self.edeleted = 0
        self.eseen = 1          # Done
        self.extra = ''


SENDMAIL = "/usr/lib/sendmail -t"
MAILFORM = """To: %s
Subject: CVS changes: %s

...Message from rcvs...

Committed files:
        %s

Log message:
        %s
"""


class RCVS(CVS):

    FileClass = MyFile

    def __init__(self):
        CVS.__init__(self)

    def update(self, files):
        for e in self.whichentries(files, 1):
            e.update()

    def commit(self, files, message = ""):
        list = self.whichentries(files)
        if not list: return
        ok = 1
        for e in list:
            if not e.commitcheck():
                ok = 0
        if not ok:
            print "correct above errors first"
            return
        if not message:
            message = raw_input("One-liner: ")
        committed = []
        for e in list:
            if e.commit(message):
                committed.append(e.file)
        self.mailinfo(committed, message)

    def mailinfo(self, files, message = ""):
        towhom = "sjoerd@cwi.nl, jack@cwi.nl" # XXX
        mailtext = MAILFORM % (towhom, string.join(files),
                                string.join(files), message)
        print '-'*70
        print mailtext
        print '-'*70
        ok = raw_input("OK to mail to %s? " % towhom)
        if string.lower(string.strip(ok)) in ('y', 'ye', 'yes'):
            p = os.popen(SENDMAIL, "w")
            p.write(mailtext)
            sts = p.close()
            if sts:
                print "Sendmail exit status %s" % str(sts)
            else:
                print "Mail sent."
        else:
            print "No mail sent."

    def report(self, files):
        for e in self.whichentries(files):
            e.report()

    def diff(self, files, opts):
        for e in self.whichentries(files):
            e.diff(opts)

    def add(self, files):
        if not files:
            raise RuntimeError, "'cvs add' needs at least one file"
        list = []
        for e in self.whichentries(files, 1):
            e.add()

    def rm(self, files):
        if not files:
            raise RuntimeError, "'cvs rm' needs at least one file"
        raise RuntimeError, "'cvs rm' not yet imlemented"

    def log(self, files, opts):
        flags = ''
        for o, a in opts:
            flags = flags + ' ' + o + a
        for e in self.whichentries(files):
            e.log(flags)

    def whichentries(self, files, localfilestoo = 0):
        if files:
            list = []
            for file in files:
                if self.entries.has_key(file):
                    e = self.entries[file]
                else:
                    e = self.FileClass(file)
                    self.entries[file] = e
                list.append(e)
        else:
            list = self.entries.values()
            for file in self.proxy.listfiles():
                if self.entries.has_key(file):
                    continue
                e = self.FileClass(file)
                self.entries[file] = e
                list.append(e)
            if localfilestoo:
                for file in os.listdir(os.curdir):
                    if not self.entries.has_key(file) \
                       and not self.ignored(file):
                        e = self.FileClass(file)
                        self.entries[file] = e
                        list.append(e)
            list.sort()
        if self.proxy:
            for e in list:
                if e.proxy is None:
                    e.proxy = self.proxy
        return list


class rcvs(CommandFrameWork):

    GlobalFlags = 'd:h:p:qvL'
    UsageMessage = \
"usage: rcvs [-d directory] [-h host] [-p port] [-q] [-v] [subcommand arg ...]"
    PostUsageMessage = \
            "If no subcommand is given, the status of all files is listed"

    def __init__(self):
        """Constructor."""
        CommandFrameWork.__init__(self)
        self.proxy = None
        self.cvs = RCVS()

    def close(self):
        if self.proxy:
            self.proxy._close()
        self.proxy = None

    def recurse(self):
        self.close()
        names = os.listdir(os.curdir)
        for name in names:
            if name == os.curdir or name == os.pardir:
                continue
            if name == "CVS":
                continue
            if not os.path.isdir(name):
                continue
            if os.path.islink(name):
                continue
            print "--- entering subdirectory", name, "---"
            os.chdir(name)
            try:
                if os.path.isdir("CVS"):
                    self.__class__().run()
                else:
                    self.recurse()
            finally:
                os.chdir(os.pardir)
                print "--- left subdirectory", name, "---"

    def options(self, opts):
        self.opts = opts

    def ready(self):
        import rcsclient
        self.proxy = rcsclient.openrcsclient(self.opts)
        self.cvs.setproxy(self.proxy)
        self.cvs.getentries()

    def default(self):
        self.cvs.report([])

    def do_report(self, opts, files):
        self.cvs.report(files)

    def do_update(self, opts, files):
        """update [-l] [-R] [file] ..."""
        local = DEF_LOCAL
        for o, a in opts:
            if o == '-l': local = 1
            if o == '-R': local = 0
        self.cvs.update(files)
        self.cvs.putentries()
        if not local and not files:
            self.recurse()
    flags_update = '-lR'
    do_up = do_update
    flags_up = flags_update

    def do_commit(self, opts, files):
        """commit [-m message] [file] ..."""
        message = ""
        for o, a in opts:
            if o == '-m': message = a
        self.cvs.commit(files, message)
        self.cvs.putentries()
    flags_commit = 'm:'
    do_com = do_commit
    flags_com = flags_commit

    def do_diff(self, opts, files):
        """diff [difflags] [file] ..."""
        self.cvs.diff(files, opts)
    flags_diff = 'cbitwcefhnlr:sD:S:'
    do_dif = do_diff
    flags_dif = flags_diff

    def do_add(self, opts, files):
        """add file ..."""
        if not files:
            print "'rcvs add' requires at least one file"
            return
        self.cvs.add(files)
        self.cvs.putentries()

    def do_remove(self, opts, files):
        """remove file ..."""
        if not files:
            print "'rcvs remove' requires at least one file"
            return
        self.cvs.remove(files)
        self.cvs.putentries()
    do_rm = do_remove

    def do_log(self, opts, files):
        """log [rlog-options] [file] ..."""
        self.cvs.log(files, opts)
    flags_log = 'bhLNRtd:s:V:r:'


def remove(fn):
    try:
        os.unlink(fn)
    except os.error:
        pass


def main():
    r = rcvs()
    try:
        r.run()
    finally:
        r.close()


if __name__ == "__main__":
    main()