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
54 #we'll assume the user set up the path correctly
55 # for the Pmax, /usr/ucb/sccs is suid sccs, what a pain
56 # /usr/local/bin/sccs should override /usr/ucb/sccs there
57 set path = (/usr/local/bin $path)
60 ############################################################
64 echo "Error: ./ not writeable by you."
68 echo "Error: ./SCCS directory not found."
71 set edits = (`sccs tell`)
73 echo "Error: $#edits file(s) out for edit...clean up before converting."
77 echo "Warning: RCS directory exists"
78 if (`ls -a RCS | wc -l` > 2) then
79 echo "Error: RCS directory not empty"
88 set logfile = /tmp/sccs2rcs_$$_log
90 set tmpfile = /tmp/sccs2rcs_$$_tmp
92 set emptyfile = /tmp/sccs2rcs_$$_empty
93 echo -n "" > $emptyfile
94 set initialfile = /tmp/sccs2rcs_$$_init
95 echo "Initial revision" > $initialfile
96 set sedfile = /tmp/sccs2rcs_$$_sed
98 set revfile = /tmp/sccs2rcs_$$_rev
101 # the quotes surround the dollar signs to fool RCS when I check in this script
102 set sccs_keywords = (\
106 '%Z%%M%[ ]*%I%[ ]*%G%'\
107 '%Z%%M%[ ]*%I%[ ]*%E%'\
115 set rcs_keywords = (\
130 ############################################################
131 # Get some answers from user
134 echo "Do you want to be prompted for a description of each"
135 echo "file as it is checked in to RCS initially?"
136 echo -n "(y=prompt for description, n=null description) [y] ?"
138 if ((_$ans == _) || (_$ans == _y) || (_$ans == _Y)) then
144 echo "The default keyword substitutions are as follows and are"
145 echo "applied in the order specified:"
147 while ($i <= $#sccs_keywords)
148 # echo ' '\"$sccs_keywords[$i]\"' ==> '\"$rcs_keywords[$i]\"
149 echo " $sccs_keywords[$i] ==> $rcs_keywords[$i]"
153 echo -n "Do you want to change them [n] ?"
155 if ((_$ans != _) && (_$ans != _n) && (_$ans != _N)) then
156 echo "You can't always get what you want."
157 echo "Edit this script file and change the variables:"
158 echo ' $sccs_keywords'
159 echo ' $rcs_keywords'
164 # create the sed script
166 while ($i <= $#sccs_keywords)
167 echo "s,$sccs_keywords[$i],$rcs_keywords[$i],g" >> $sedfile
173 sort -k 1,1 /dev/null >& /dev/null
174 if ($status == 0) then
175 set sort_each_field = '-k 1 -k 2 -k 3 -k 4 -k 5 -k 6 -k 7 -k 8 -k 9'
177 set sort_each_field = '+0 +1 +2 +3 +4 +5 +6 +7 +8'
180 ############################################################
181 # Loop over every s-file in SCCS dir
183 foreach sfile (SCCS/s.*)
184 # get rid of the "s." at the beginning of the name
185 set file = `echo $sfile:t | sed -e "s/^..//"`
187 # work on each rev of that file in ascending order
190 # Only scan the file up to the "I" keyword, then see if
191 # the "f" keyword is set to binary. The SCCS file has
192 # <ctrl>-aI denoting the start of the file (or end of header).
193 set binary = (`sed -e '/^.I/,$d' < $sfile | grep '^.f e 1$'`)
195 # echo This is a binary file
197 # echo This is not a binary file
200 sccs prs $file | grep "^D " | @AWK@ '{print $2}' | sed -e 's/\./ /g' | sort -n -u $sort_each_field | sed -e 's/ /./g' > $revfile
201 foreach rev (`cat $revfile`)
202 if ($status != 0) goto ERROR
204 # get file into current dir and get stats
206 # Is the substr stuff and the +0 in the following awk script really
207 # necessary? It seems to me that if we didn't find the date format
208 # we expected in the output we have other problems.
209 # Note: Solaris awk does not like the following line. Use gawk
210 # mawk, or nawk instead.
211 set date = `sccs prs -r$rev $file | @AWK@ '/^D / {print (substr($3,0,2)+0<70?20:19) $3, $4; exit}'`
212 set author = `sccs prs -r$rev $file | @AWK@ '/^D / {print $5; exit}'`
214 echo "==> file $file, rev=$rev, date=$date, author=$author"
215 sccs edit -r$rev $file >>& $logfile
216 if ($status != 0) goto ERROR
217 echo checked out of SCCS
219 # add RCS keywords in place of SCCS keywords (only if not binary)
220 if ($#binary == 0) then
221 sed -f $sedfile $file > $tmpfile
222 if ($status != 0) goto ERROR
223 echo performed keyword substitutions
227 # check file into RCS
232 echo this is a binary file
233 # Mark initial, empty file as binary
234 rcs -i -kb -t$emptyfile $file
239 echo ci -f -r$rev -d"$date" -w$author -t$emptyfile $file
240 ci -f -r$rev -d"$date" -w$author -t$emptyfile $file < $initialfile >>& $logfile
241 if ($status != 0) goto ERROR
242 echo initial rev checked into RCS without description
245 echo Enter a brief description of the file $file \(end w/ Ctrl-D\):
247 ci -f -r$rev -d"$date" -w$author -t$tmpfile $file < $initialfile >>& $logfile
248 if ($status != 0) goto ERROR
249 echo initial rev checked into RCS
253 set lckrev = `echo $rev | sed -e 's/\.[0-9]*$//'`
254 if ("$lckrev" =~ [0-9]*.*) then
255 # need to lock the brach -- it is OK if the lock fails
256 rcs -l$lckrev $file >>& $logfile
258 # need to lock the trunk -- must succeed
259 rcs -l $file >>& $logfile
260 if ($status != 0) goto ERROR
263 sccs prs -r$rev $file | grep "." > $tmpfile
264 # it's OK if grep fails here and gives status == 1
265 # put the delta message in $tmpfile
266 ed $tmpfile >>& $logfile <<EOF
272 ci -f -r$rev -d"$date" -w$author $file < $tmpfile >>& $logfile
273 if ($status != 0) goto ERROR
274 echo checked into RCS
276 sccs unedit $file >>& $logfile
277 if ($status != 0) goto ERROR
283 ############################################################
288 rm -f $tmpfile $emptyfile $initialfile $sedfile
289 echo ===================================================
290 echo " Conversion Completed Successfully"
292 echo " SCCS history now in old-SCCS/"
293 echo ===================================================
298 foreach f (`sccs tell`)
303 echo Danger\! Danger\!
304 echo Some command exited with a non-zero exit status.
305 echo Log file exists in $logfile.
307 echo Incomplete history in ./RCS -- remove it
308 echo Original unchanged history in ./SCCS
313 rm -f $tmpfile $emptyfile $initialfile $sedfile $revfile