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comparison lib-src/rcs2log @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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children 929b76928fce
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-1:000000000000 0:376386a54a3c
1 #!/bin/sh
2
3 # RCS to ChangeLog generator
4
5 # Generate a change log prefix from RCS files and the ChangeLog (if any).
6 # Output the new prefix to standard output.
7 # You can edit this prefix by hand, and then prepend it to ChangeLog.
8
9 # Ignore log entries that start with `#'.
10 # Clump together log entries that start with `{topic} ',
11 # where `topic' contains neither white space nor `}'.
12
13 # Author: Paul Eggert <eggert@twinsun.com>
14
15 # !Id: rcs2log,v 1.18 1994/08/15 22:44:10 eggert Exp !
16
17 # Copyright 1992, 1993 Free Software Foundation, Inc.
18
19 # This program is free software; you can redistribute it and/or modify
20 # it under the terms of the GNU General Public License as published by
21 # the Free Software Foundation; either version 2, or (at your option)
22 # any later version.
23 #
24 # This program is distributed in the hope that it will be useful,
25 # but WITHOUT ANY WARRANTY; without even the implied warranty of
26 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 # GNU General Public License for more details.
28 #
29 # You should have received a copy of the GNU General Public License
30 # along with this program; see the file COPYING. If not, write to
31 # the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
32
33 nl='
34 '
35
36 # Parse options.
37
38 # defaults
39 : ${TMPDIR=/tmp}
40 hostname= # name of local host (if empty, will deduce it later)
41 indent=8 # indent of log line
42 initialize_fullname= # awk assignments to set up fullname array
43 initialize_mailaddr= # awk assignments to set up mailaddr array
44 length=79 # suggested max width of log line
45 logins= # login names for people we know fullnames and mailaddresses of
46 loginsout= # temporary file holding sorted logins
47 rlog_options= # options to pass to rlog
48 tabwidth=8 # width of horizontal tab
49
50 while :
51 do
52 case $1 in
53 -i) indent=${2?};;
54 -h) hostname=${2?};;
55 -l) length=${2?};;
56 -n) logins=$logins$nl${2?}
57 loginsout=$TMPDIR/rcs2log$$l
58 case $2${3?}${4?} in
59 *\"* | *\\* | *"$nl"*)
60 echo >&2 "$0: -n '$2' '$3' '$4': special characters not allowed"
61 exit 1
62 esac
63 initialize_fullname="$initialize_fullname
64 fullname[\"$2\"] = \"$3\""
65 initialize_mailaddr="$initialize_mailaddr
66 mailaddr[\"$2\"] = \"$4\""
67 shift; shift;;
68 -r) rlog_options=$rlog_options$nl${2?};;
69 -t) tabwidth=${2?};;
70 -*) echo >&2 "$0: usage: $0 [options] [file ...]
71 Options:
72 [-h hostname] [-i indent] [-l length] [-n login fullname mailaddr]...
73 [-r rlog_option]... [-t tabwidth]"
74 exit 1;;
75 *) break
76 esac
77 shift; shift
78 done
79
80 month_data='
81 m[0]="Jan"; m[1]="Feb"; m[2]="Mar"
82 m[3]="Apr"; m[4]="May"; m[5]="Jun"
83 m[6]="Jul"; m[7]="Aug"; m[8]="Sep"
84 m[9]="Oct"; m[10]="Nov"; m[11]="Dec"
85
86 # days in non-leap year thus far, indexed by month (0-12)
87 mo[0]=0; mo[1]=31; mo[2]=59; mo[3]=90
88 mo[4]=120; mo[5]=151; mo[6]=181; mo[7]=212
89 mo[8]=243; mo[9]=273; mo[10]=304; mo[11]=334
90 mo[12]=365
91 '
92
93
94 # Log into $rlogout the revisions checked in since the first ChangeLog entry.
95
96 date=1970
97 if test -s ChangeLog
98 then
99 # Add 1 to seconds to avoid duplicating most recent log.
100 e='
101 /^... ... [ 0-9][0-9] [ 0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9]+ /{
102 '"$month_data"'
103 year = $5
104 for (i=0; i<=11; i++) if (m[i] == $2) break
105 dd = $3
106 hh = substr($0,12,2)
107 mm = substr($0,15,2)
108 ss = substr($0,18,2)
109 ss++
110 if (ss == 60) {
111 ss = 0
112 mm++
113 if (mm == 60) {
114 mm = 0
115 hh++
116 if (hh == 24) {
117 hh = 0
118 dd++
119 monthdays = mo[i+1] - mo[i]
120 if (i == 1 && year%4 == 0 && (year%100 != 0 || year%400 == 0)) monthdays++
121 if (dd == monthdays + 1) {
122 dd = 1
123 i++
124 if (i == 12) {
125 i = 0
126 year++
127 }
128 }
129 }
130 }
131 }
132 printf "%d/%02d/%02d %02d:%02d:%02d\n", year, i+1, dd, hh, mm, ss
133 exit
134 }
135 '
136 d=`awk "$e" <ChangeLog` || exit
137 case $d in
138 ?*) date=$d
139 esac
140 fi
141 datearg="-d>$date"
142
143 repository=
144 rlog=rlog
145 case $CVSROOT in
146 ?*)
147 if test -d "$CVSROOT" && test -f CVS/Repository
148 then
149 r=`cat <CVS/Repository` || exit
150 if test -d "$CVSROOT/$r"
151 then
152 repository=$CVSROOT/$r
153 rlog='cvs log'
154 fi
155 fi
156 esac
157
158 # With no arguments, examine all files under the RCS directory.
159 case $# in
160 0)
161 case $repository in
162 '')
163 files=
164 for file in RCS/.* RCS/* .*,v *,v
165 do
166 case $file in
167 RCS/. | RCS/..) continue;;
168 RCS/.\* | RCS/\* | .\*,v | \*,v) test -f "$file" || continue
169 esac
170 files=$files$nl$file
171 done
172 case $files in
173 '') exit 0
174 esac
175 oldIFS=$IFS
176 IFS=$nl
177 set $files
178 IFS=$oldIFS
179 esac
180 esac
181
182 rlogout=$TMPDIR/rcs2log$$r
183 trap exit 1 2 13 15
184 trap "rm -f $loginsout $rlogout; exit 1" 0
185
186 $rlog "$datearg" $rlog_options ${1+"$@"} >$rlogout || exit
187
188
189 # Get the full name of each author the logs mention, and set initialize_fullname
190 # to awk code that initializes the `fullname' awk associative array.
191 # Warning: foreign authors (i.e. not known in the passwd file) are mishandled;
192 # you have to fix the resulting output by hand.
193
194 case $loginsout in
195 ?*) sort -u -o $loginsout <<EOF || exit
196 $logins
197 EOF
198 esac
199 authors=`
200 sed -n 's|^date: *[0-9]*[-/][0-9][0-9][-/][0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9][-+0-9]*; *author: *\([^; ]*\).*|\1|p' <$rlogout |
201 case $loginsout in
202 '') sort -u;;
203 ?*) sort -u | comm -23 - $loginsout
204 esac
205 `
206 case $authors in
207 ?*)
208 initialize_author=
209 for author in $authors
210 do
211 initialize_author="$initialize_author
212 author[\"$author\"] = 1
213 "
214 done
215 awkscript='
216 BEGIN {
217 alphabet = "abcdefghijklmnopqrstuvwxyz"
218 ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
219 '"$initialize_author"'
220 }
221 {
222 if (author[$1]) {
223 fullname = $5
224 if (fullname ~ /[0-9]+-[^(]*\([0-9]+\)$/) {
225 # Remove the junk from fullnames like "0000-Admin(0000)".
226 fullname = substr(fullname, index(fullname, "-") + 1)
227 fullname = substr(fullname, 1, index(fullname, "(") - 1)
228 }
229 if (fullname ~ /,[^ ]/) {
230 # Some sites put comma-separated junk after the fullname.
231 # Remove it, but leave "Bill Gates, Jr" alone.
232 fullname = substr(fullname, 1, index(fullname, ",") - 1)
233 }
234 abbr = index(fullname, "&")
235 if (abbr) {
236 a = substr($1, 1, 1)
237 A = a
238 i = index(alphabet, a)
239 if (i) A = substr(ALPHABET, i, 1)
240 fullname = substr(fullname, 1, abbr-1) A substr($1, 2) substr(fullname, abbr+1)
241 }
242 printf "fullname[\"%s\"] = \"%s\"\n", $1, fullname
243 author[$1] = 0
244 }
245 }
246 '
247
248 initialize_fullname=`
249 (cat /etc/passwd; ypmatch $authors passwd) 2>/dev/null |
250 awk -F: "$awkscript"
251 `$initialize_fullname
252 esac
253
254
255 # Function to print a single log line.
256 # We don't use awk functions, to stay compatible with old awk versions.
257 # `Log' is the log message (with \n replaced by \r).
258 # `files' contains the affected files.
259 printlogline='{
260
261 # Following the GNU coding standards, rewrite
262 # * file: (function): comment
263 # to
264 # * file (function): comment
265 if (Log ~ /^\([^)]*\): /) {
266 i = index(Log, ")")
267 files = files " " substr(Log, 1, i)
268 Log = substr(Log, i+3)
269 }
270
271 # If "label: comment" is too long, break the line after the ":".
272 sep = " "
273 if ('"$length"' <= '"$indent"' + 1 + length(files) + index(Log, CR)) sep = "\n" indent_string
274
275 # Print the label.
276 printf "%s*%s:", indent_string, files
277
278 # Print each line of the log, transliterating \r to \n.
279 while ((i = index(Log, CR)) != 0) {
280 logline = substr(Log, 1, i-1)
281 if (logline ~ /[^ ]/) {
282 printf "%s%s\n", sep, logline
283 } else {
284 print ""
285 }
286 sep = indent_string
287 Log = substr(Log, i+1)
288 }
289 }'
290
291 case $hostname in
292 '')
293 hostname=`(
294 hostname || uname -n || uuname -l || cat /etc/whoami
295 ) 2>/dev/null` || {
296 echo >&2 "$0: cannot deduce hostname"
297 exit 1
298 }
299 esac
300
301
302 # Process the rlog output, generating ChangeLog style entries.
303
304 # First, reformat the rlog output so that each line contains one log entry.
305 # Transliterate \n to \r so that multiline entries fit on a single line.
306 # Discard irrelevant rlog output.
307 awk <$rlogout '
308 /^Working file:/ { filename = $3 }
309 /^date: /, /^(-----------*|===========*)$/ {
310 if ($0 ~ /^branches: /) { next }
311 if ($0 ~ /^date: [0-9][- +\/0-9:]*;/) {
312 date = $2
313 if (date ~ /-/) {
314 # An ISO format date. Replace all "-"s with "/"s.
315 newdate = ""
316 while ((i = index(date, "-")) != 0) {
317 newdate = newdate substr(date, 1, i-1) "/"
318 date = substr(date, i+1)
319 }
320 date = newdate date
321 }
322 # Ignore any time zone; ChangeLog has no room for it.
323 time = substr($3, 1, 8)
324 author = substr($5, 1, length($5)-1)
325 printf "%s %s %s %s %c", filename, date, time, author, 13
326 next
327 }
328 if ($0 ~ /^(-----------*|===========*)$/) { print ""; next }
329 printf "%s%c", $0, 13
330 }
331 ' |
332
333 # Now each line is of the form
334 # FILENAME YYYY/MM/DD HH:MM:SS AUTHOR \rLOG
335 # where \r stands for a carriage return,
336 # and each line of the log is terminated by \r instead of \n.
337 # Sort the log entries, first by date+time (in reverse order),
338 # then by author, then by log entry, and finally by file name (just in case).
339 sort +1 -3r +3 +0 |
340
341 # Finally, reformat the sorted log entries.
342 awk '
343 BEGIN {
344 # Some awks do not understand "\r" or "\013", so we have to
345 # put a carriage return directly in the file.
346 CR="
347 " # <-- There is a single CR between the " chars here.
348
349 # Initialize the fullname and mailaddr associative arrays.
350 '"$initialize_fullname"'
351 '"$initialize_mailaddr"'
352
353 # Initialize indent string.
354 indent_string = ""
355 i = '"$indent"'
356 if (0 < '"$tabwidth"')
357 for (; '"$tabwidth"' <= i; i -= '"$tabwidth"')
358 indent_string = indent_string "\t"
359 while (1 <= i--)
360 indent_string = indent_string " "
361
362 # Set up date conversion tables.
363 # RCS uses a nice, clean, sortable format,
364 # but ChangeLog wants the traditional, ugly ctime format.
365
366 # January 1, 0 AD (Gregorian) was Saturday = 6
367 EPOCH_WEEKDAY = 6
368 # Of course, there was no 0 AD, but the algorithm works anyway.
369
370 w[0]="Sun"; w[1]="Mon"; w[2]="Tue"; w[3]="Wed"
371 w[4]="Thu"; w[5]="Fri"; w[6]="Sat"
372
373 '"$month_data"'
374 }
375
376 {
377 newlog = substr($0, 1 + index($0, CR))
378
379 # Ignore log entries prefixed by "#".
380 if (newlog ~ /^#/) { next }
381
382 if (Log != newlog || date != $2 || author != $4) {
383
384 # The previous log and this log differ.
385
386 # Print the old log.
387 if (date != "") '"$printlogline"'
388
389 # Logs that begin with "{clumpname} " should be grouped together,
390 # and the clumpname should be removed.
391 # Extract the new clumpname from the log header,
392 # and use it to decide whether to output a blank line.
393 newclumpname = ""
394 sep = "\n"
395 if (date == "") sep = ""
396 if (newlog ~ /^\{[^ }]*}[ ]/) {
397 i = index(newlog, "}")
398 newclumpname = substr(newlog, 1, i)
399 while (substr(newlog, i+1) ~ /^[ ]/) i++
400 newlog = substr(newlog, i+1)
401 if (clumpname == newclumpname) sep = ""
402 }
403 printf sep
404 clumpname = newclumpname
405
406 # Get ready for the next log.
407 Log = newlog
408 if (files != "")
409 for (i in filesknown)
410 filesknown[i] = 0
411 files = ""
412 }
413 if (date != $2 || author != $4) {
414 # The previous date+author and this date+author differ.
415 # Print the new one.
416 date = $2
417 author = $4
418
419 # Convert nice RCS date like "1992/01/03 00:03:44"
420 # into ugly ctime date like "Fri Jan 3 00:03:44 1992".
421 # Calculate day of week from Gregorian calendar.
422 i = index($2, "/")
423 year = substr($2, 1, i-1) + 0
424 monthday = substr($2, i+1)
425 i = index(monthday, "/")
426 month = substr(monthday, 1, i-1) + 0
427 day = substr(monthday, i+1) + 0
428 leap = 0
429 if (2 < month && year%4 == 0 && (year%100 != 0 || year%400 == 0)) leap = 1
430 days_since_Sunday_before_epoch = EPOCH_WEEKDAY + year * 365 + int((year + 3) / 4) - int((year + 99) / 100) + int((year + 399) / 400) + mo[month-1] + leap + day - 1
431
432 # Print "date fullname (email address)".
433 # Get fullname and email address from associative arrays;
434 # default to author and author@hostname if not in arrays.
435 if (fullname[author])
436 auth = fullname[author]
437 else
438 auth = author
439 printf "%s %s %2d %s %d %s ", w[days_since_Sunday_before_epoch%7], m[month-1], day, $3, year, auth
440 if (mailaddr[author])
441 printf "<%s>\n\n", mailaddr[author]
442 else
443 printf "<%s@%s>\n\n", author, "'"$hostname"'"
444 }
445 if (! filesknown[$1]) {
446 filesknown[$1] = 1
447 if (files == "") files = " " $1
448 else files = files ", " $1
449 }
450 }
451 END {
452 # Print the last log.
453 if (date != "") {
454 '"$printlogline"'
455 printf "\n"
456 }
457 }
458 ' &&
459
460
461 # Exit successfully.
462
463 exec rm -f $loginsout $rlogout