summaryrefslogtreecommitdiffstats
path: root/Demo/pdist/rcvs.py
blob: d9d1c55d6245359354c1bff33389fc44a40f59c8 (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
#! /usr/local/bin/python

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

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


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
		"""
		if not self.eseen:
			if not self.lseen:
				if not self.rseen: return '0' # Never heard of
				else:
					return 'N' # New remotely
			else: # self.lseen
				if not self.rseen: 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.lseen:
				if self.eremoved:
					if self.rseen: return 'R' # Removed
					else: return 'r' # Get rid of entry
				else: # not self.eremoved
					if self.rseen:
						print "warning:",
						print self.file,
						print "was lost"
						return 'U'
					else: return 'r' # Get rid of entry
			else: # self.lseen
				if not self.rseen:
					if self.enew: return 'A' # New locally
					else: return 'D' # Deleted remotely
				else: # self.rseen
					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()
		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)
		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 = []):
		if self.lsum == self.rsum:
			return
		import tempfile
		flags = ''
		for o, a in opts:
			flags = flags + ' ' + o + a
		flags = flags[1:]
		fn = self.file
		data = self.proxy.get(fn)
		tfn = tempfile.mktemp()
		try:
			tf = open(tfn, 'w')
			tf.write(data)
			tf.close()
			print 'diff %s -r%s %s' % (flags, self.rrev, fn)
			sts = os.system('diff %s %s %s' % (flags, tfn, fn))
			if sts:
				print '='*70
		finally:
			remove(tfn)

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

	def put(self, message = ""):
		print "Checking in", self.file, "..."
		data = open(self.file).read()
		messages = self.proxy.put(self.file, data, message)
		if messages:
			print messages
	
	def get(self):
		data = self.proxy.get(self.file)
		f = open(self.file, 'w')
		f.write(data)
		f.close()
		self.eseen = 1
		self.esum = self.rsum
		self.emtime, self.ectime = os.stat(self.file)[-2:]
		self.erev = self.rrev
		self.enew = 0
		self.edeleted = 0
		# XXX anything else?


class RCVS(CVS):

	FileClass = MyFile

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

	def checkfiles(self, files):
		if not files:
			def ok(file, self=self):
				e = self.entries[file]
				return e.eseen or e.rseen
			files[:] = filter(ok, self.entries.keys())
			files.sort()
			if not files:
				print "no files to be processed"
				return 1
			else:
				return None
		else:
			sts = None
			for file in files:
				if not self.entries.has_key(file):
					print "%s: nothing known" % file
					sts = 1
			return sts


class rcvs(CommandFrameWork):

	GlobalFlags = 'd:h:p:qv'
	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 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()
		self.cvs.getlocalfiles()
		self.cvs.getremotefiles(self.proxy)

	def default(self):
		files = []
		if self.cvs.checkfiles(files):
			return 1
		for file in files:
			print self.cvs.entries[file].action(), file

	def do_update(self, opts, files):
		"""update [file] ..."""
		if self.cvs.checkfiles(files):
			return 1
		for file in files:
			if not self.cvs.entries.has_key(file):
				print "%s: not found" % file
			else:
				self.cvs.entries[file].update()
		self.cvs.putentries()
	do_up = do_update

	def do_commit(self, opts, files):
		"""commit [file] ..."""
		if self.cvs.checkfiles(files):
			return 1
		sts = 0
		for file in files:
			if not self.cvs.entries[file].commitcheck():
				sts = 1
		if sts:
			return sts
		message = raw_input("One-liner: ")
		for file in files:
			self.cvs.entries[file].commit(message)
		self.cvs.putentries()
	do_com = do_commit

	def do_diff(self, opts, files):
		"""diff [difflags] [file] ..."""
		if self.cvs.checkfiles(files):
			return 1
		for file in files:
			self.cvs.entries[file].diff(opts)
	do_dif = do_diff
	flags_diff = 'cbitwcefhnlrsD:S:'



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


def main():
	rcvs().run()


if __name__ == "__main__":
	main()