3 # Sccs2rcs is a script to convert an existing SCCS
4 # history into an RCS history without losing any of
5 # the information contained therein.
6 # It has been tested under the following OS's:
7 # SunOS 3.5, 4.0.3, 4.1
11 # + It will NOT delete or alter your ./SCCS history under any circumstances.
13 # + Run in a directory where ./SCCS exists and where you can
16 # + /usr/local/bin is put in front of the default path.
17 # (SCCS under Ultrix is set-uid sccs, bad bad bad, so
18 # /usr/local/bin/sccs here fixes that)
20 # + Date, time, author, comments, branches, are all preserved.
22 # + If a command fails somewhere in the middle, it bombs with
23 # a message -- remove what it's done so far and try again.
24 # "rm -rf RCS; sccs unedit `sccs tell`; sccs clean"
25 # There is no recovery and exit is far from graceful.
26 # If a particular module is hanging you up, consider
27 # doing it separately; move it from the current area so that
28 # the next run will have a better chance or working.
29 # Also (for the brave only) you might consider hacking
30 # the s-file for simpler problems: I've successfully changed
31 # the date of a delta to be in sync, then run "sccs admin -z"
34 # + After everything finishes, ./SCCS will be moved to ./old-SCCS.
36 # This file may be copied, processed, hacked, mutilated, and
37 # even destroyed as long as you don't tell anyone you wrote it.
40 # Viewlogic Systems, Inc.
41 # kenstir@viewlogic.com
42 # ...!harvard!cg-atla!viewlog!kenstir
44 # Various hacks made by Brian Berliner before inclusion in CVS contrib area.
46 # Modified to detect SCCS binary files. If binary, skip the keyword
47 # substitution and flag the RCS file as binary (using rcs -i -kb).
48 # -Allan G. Schrum schrum@ofsoptics.com agschrum@mindspring.com
49 # Fri Sep 26 10:40:40 EDT 2003
53 #we'll assume the user set up the path correctly
54 # for the Pmax, /usr/ucb/sccs is suid sccs, what a pain
55 # /usr/local/bin/sccs should override /usr/ucb/sccs there
56 set path = (/usr/local/bin $path)
59 ############################################################
63 echo "Error: ./ not writeable by you."
67 echo "Error: ./SCCS directory not found."
70 set edits = (`sccs tell`)
72 echo "Error: $#edits file(s) out for edit...clean up before converting."
76 echo "Warning: RCS directory exists"
77 if (`ls -a RCS | wc -l` > 2) then
78 echo "Error: RCS directory not empty"
87 set logfile = /tmp/sccs2rcs_$$_log
89 set tmpfile = /tmp/sccs2rcs_$$_tmp
91 set emptyfile = /tmp/sccs2rcs_$$_empty
92 echo -n "" > $emptyfile
93 set initialfile = /tmp/sccs2rcs_$$_init
94 echo "Initial revision" > $initialfile
95 set sedfile = /tmp/sccs2rcs_$$_sed
97 set revfile = /tmp/sccs2rcs_$$_rev
100 # the quotes surround the dollar signs to fool RCS when I check in this script
101 set sccs_keywords = (\
105 '%Z%%M%[ ]*%I%[ ]*%G%'\
106 '%Z%%M%[ ]*%I%[ ]*%E%'\
114 set rcs_keywords = (\
129 ############################################################
130 # Get some answers from user
133 echo "Do you want to be prompted for a description of each"
134 echo "file as it is checked in to RCS initially?"
135 echo -n "(y=prompt for description, n=null description) [y] ?"
137 if ((_$ans == _) || (_$ans == _y) || (_$ans == _Y)) then
143 echo "The default keyword substitutions are as follows and are"
144 echo "applied in the order specified:"
146 while ($i <= $#sccs_keywords)
147 # echo ' '\"$sccs_keywords[$i]\"' ==> '\"$rcs_keywords[$i]\"
148 echo " $sccs_keywords[$i] ==> $rcs_keywords[$i]"
152 echo -n "Do you want to change them [n] ?"
154 if ((_$ans != _) && (_$ans != _n) && (_$ans != _N)) then
155 echo "You can't always get what you want."
156 echo "Edit this script file and change the variables:"
157 echo ' $sccs_keywords'
158 echo ' $rcs_keywords'
163 # create the sed script
165 while ($i <= $#sccs_keywords)
166 echo "s,$sccs_keywords[$i],$rcs_keywords[$i],g" >> $sedfile
172 sort -k 1,1 /dev/null >& /dev/null
173 if ($status == 0) then
174 set sort_each_field = '-k 1 -k 2 -k 3 -k 4 -k 5 -k 6 -k 7 -k 8 -k 9'
176 set sort_each_field = '+0 +1 +2 +3 +4 +5 +6 +7 +8'
179 ############################################################
180 # Loop over every s-file in SCCS dir
182 foreach sfile (SCCS/s.*)
183 # get rid of the "s." at the beginning of the name
184 set file = `echo $sfile:t | sed -e "s/^..//"`
186 # work on each rev of that file in ascending order
189 # Only scan the file up to the "I" keyword, then see if
190 # the "f" keyword is set to binary. The SCCS file has
191 # <ctrl>-aI denoting the start of the file (or end of header).
192 set binary = (`sed -e '/^.I/,$d' < $sfile | grep '^.f e 1$'`)
194 # echo This is a binary file
196 # echo This is not a binary file
199 sccs prs $file | grep "^D " | @AWK@ '{print $2}' | sed -e 's/\./ /g' | sort -n -u $sort_each_field | sed -e 's/ /./g' > $revfile
200 foreach rev (`cat $revfile`)
201 if ($status != 0) goto ERROR
203 # get file into current dir and get stats
205 # Is the substr stuff and the +0 in the following awk script really
206 # necessary? It seems to me that if we didn't find the date format
207 # we expected in the output we have other problems.
208 # Note: Solaris awk does not like the following line. Use gawk
209 # mawk, or nawk instead.
210 set date = `sccs prs -r$rev $file | @AWK@ '/^D / {print (substr($3,0,2)+0<70?20:19) $3, $4; exit}'`
211 set author = `sccs prs -r$rev $file | @AWK@ '/^D / {print $5; exit}'`
213 echo "==> file $file, rev=$rev, date=$date, author=$author"
214 sccs edit -r$rev $file >>& $logfile
215 if ($status != 0) goto ERROR
216 echo checked out of SCCS
218 # add RCS keywords in place of SCCS keywords (only if not binary)
219 if ($#binary == 0) then
220 sed -f $sedfile $file > $tmpfile
221 if ($status != 0) goto ERROR
222 echo performed keyword substitutions
226 # check file into RCS
231 echo this is a binary file
232 # Mark initial, empty file as binary
233 rcs -i -kb -t$emptyfile $file
238 echo ci -f -r$rev -d"$date" -w$author -t$emptyfile $file
239 ci -f -r$rev -d"$date" -w$author -t$emptyfile $file < $initialfile >>& $logfile
240 if ($status != 0) goto ERROR
241 echo initial rev checked into RCS without description
244 echo Enter a brief description of the file $file \(end w/ Ctrl-D\):
246 ci -f -r$rev -d"$date" -w$author -t$tmpfile $file < $initialfile >>& $logfile
247 if ($status != 0) goto ERROR
248 echo initial rev checked into RCS
252 set lckrev = `echo $rev | sed -e 's/\.[0-9]*$//'`
253 if ("$lckrev" =~ [0-9]*.*) then
254 # need to lock the brach -- it is OK if the lock fails
255 rcs -l$lckrev $file >>& $logfile
257 # need to lock the trunk -- must succeed
258 rcs -l $file >>& $logfile
259 if ($status != 0) goto ERROR
262 sccs prs -r$rev $file | grep "." > $tmpfile
263 # it's OK if grep fails here and gives status == 1
264 # put the delta message in $tmpfile
265 ed $tmpfile >>& $logfile <<EOF
271 ci -f -r$rev -d"$date" -w$author $file < $tmpfile >>& $logfile
272 if ($status != 0) goto ERROR
273 echo checked into RCS
275 sccs unedit $file >>& $logfile
276 if ($status != 0) goto ERROR
282 ############################################################
287 rm -f $tmpfile $emptyfile $initialfile $sedfile
288 echo ===================================================
289 echo " Conversion Completed Successfully"
291 echo " SCCS history now in old-SCCS/"
292 echo ===================================================
297 foreach f (`sccs tell`)
302 echo Danger\! Danger\!
303 echo Some command exited with a non-zero exit status.
304 echo Log file exists in $logfile.
306 echo Incomplete history in ./RCS -- remove it
307 echo Original unchanged history in ./SCCS
312 rm -f $tmpfile $emptyfile $initialfile $sedfile $revfile