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emacs/lib-src/rcs2log
Paul Eggert 942bbf2b2b Change GNU Emacs' to this program' in the comment referring the reader
to the file COPYING, since rcs2log is distributed as part of programs
other than GNU Emacs.
1996-08-26 21:20:48 +00:00

610 lines
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#! /bin/sh
# RCS to ChangeLog generator
# Generate a change log prefix from RCS files and the ChangeLog (if any).
# Output the new prefix to standard output.
# You can edit this prefix by hand, and then prepend it to ChangeLog.
# Ignore log entries that start with `#'.
# Clump together log entries that start with `{topic} ',
# where `topic' contains neither white space nor `}'.
# Author: Paul Eggert <eggert@twinsun.com>
# $Id: rcs2log,v 1.29 1996/08/24 21:11:14 erik Exp eggert $
# Copyright 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
tab=' '
nl='
'
# Parse options.
# defaults
: ${AWK=awk}
: ${TMPDIR=/tmp}
changelog=ChangeLog # change log file name
datearg= # rlog date option
hostname= # name of local host (if empty, will deduce it later)
indent=8 # indent of log line
length=79 # suggested max width of log line
logins= # login names for people we know fullnames and mailaddrs of
loginFullnameMailaddrs= # login<tab>fullname<tab>mailaddr triplets
logTZ= # time zone for log dates (if empty, use local time)
recursive= # t if we want recursive rlog
revision= # t if we want revision numbers
rlog_options= # options to pass to rlog
tabwidth=8 # width of horizontal tab
while :
do
case $1 in
-c) changelog=${2?}; shift;;
-i) indent=${2?}; shift;;
-h) hostname=${2?}; shift;;
-l) length=${2?}; shift;;
-[nu]) # -n is obsolescent; it is replaced by -u.
case $1 in
-n) case ${2?}${3?}${4?} in
*"$tab"* | *"$nl"*)
echo >&2 "$0: -n '$2' '$3' '$4': tabs, newlines not allowed"
exit 1
esac
loginFullnameMailaddrs=$loginFullnameMailaddrs$nl$2$tab$3$tab$4
shift; shift; shift;;
-u)
# If $2 is not tab-separated, use colon for separator.
case ${2?} in
*"$nl"*)
echo >&2 "$0: -u '$2': newlines not allowed"
exit 1;;
*"$tab"*)
t=$tab;;
*)
t=:
esac
case $2 in
*"$t"*"$t"*"$t"*)
echo >&2 "$0: -u '$2': too many fields"
exit 1;;
*"$t"*"$t"*)
;;
*)
echo >&2 "$0: -u '$2': not enough fields"
exit 1
esac
loginFullnameMailaddrs=$loginFullnameMailaddrs$nl$2
shift
esac
logins=$logins$nl$login
;;
-r) rlog_options=$rlog_options$nl${2?}; shift;;
-R) recursive=t;;
-t) tabwidth=${2?}; shift;;
-v) revision=t;;
-*) echo >&2 "$0: usage: $0 [options] [file ...]
Options:
[-c changelog] [-h hostname] [-i indent] [-l length] [-R]
[-r rlog_option] [-t tabwidth] [-v]
[-u 'login<TAB>fullname<TAB>mailaddr']..."
exit 1;;
*) break
esac
shift
done
month_data='
m[0]="Jan"; m[1]="Feb"; m[2]="Mar"
m[3]="Apr"; m[4]="May"; m[5]="Jun"
m[6]="Jul"; m[7]="Aug"; m[8]="Sep"
m[9]="Oct"; m[10]="Nov"; m[11]="Dec"
'
# Put rlog output into $rlogout.
# If no rlog options are given,
# log the revisions checked in since the first ChangeLog entry.
# Since ChangeLog is only by date, some of these revisions may be duplicates of
# what's already in ChangeLog; it's the user's responsibility to remove them.
case $rlog_options in
'')
date=1970
if test -s "$changelog"
then
e='
/^[0-9]+-[0-9][0-9]-[0-9][0-9]/{
# ISO 8601 date
print $1
exit
}
/^... ... [ 0-9][0-9] [ 0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9]+ /{
# old-fashioned date and time (Emacs 19.31 and earlier)
'"$month_data"'
year = $5
for (i=0; i<=11; i++) if (m[i] == $2) break
dd = $3
printf "%d-%02d-%02d\n", year, i+1, dd
exit
}
'
d=`$AWK "$e" <"$changelog"` || exit
case $d in
?*) date=$d
esac
fi
datearg="-d>$date"
esac
# Use rlog's -zLT option, if rlog supports it.
case `rlog -zLT 2>&1` in
*'unknown option'*) ;;
*) rlog_options=-zLT$nl$rlog_options
esac
# Use TZ specified by ChangeLog local variable, if any.
if test -s "$changelog"
then
extractTZ='
/^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*"\([^"]*\)".*/{
s//\1/; p; q
}
/^.*change-log-time-zone-rule['"$tab"' ]*:['"$tab"' ]*t.*/{
s//UTC0/; p; q
}
'
logTZ=`tail "$changelog" | sed -n "$extractTZ"`
case $logTZ in
?*) TZ=$logTZ; export TZ
esac
fi
# If CVS is in use, examine its repository, not the normal RCS files.
if test ! -f CVS/Repository
then
rlog=rlog
repository=
else
rlog='cvs log'
repository=`sed 1q <CVS/Repository` || exit
test ! -f CVS/Root || CVSROOT=`cat <CVS/Root` || exit
case $CVSROOT in
*:/*)
# remote repository
;;
*)
# local repository
case $repository in
/*) ;;
*) repository=${CVSROOT?}/$repository
esac
if test ! -d "$repository"
then
echo >&2 "$0: $repository: bad repository (see CVS/Repository)"
exit 1
fi
esac
fi
# With no arguments, examine all files under the RCS directory.
case $# in
0)
case $repository in
'')
oldIFS=$IFS
IFS=$nl
case $recursive in
t)
RCSdirs=`find . -name RCS -type d -print`
filesFromRCSfiles='s|,v$||; s|/RCS/|/|; s|^\./||'
files=`
{
case $RCSdirs in
?*) find $RCSdirs -type f -print
esac
find . -name '*,v' -print
} |
sort -u |
sed "$filesFromRCSfiles"
`;;
*)
files=
for file in RCS/.* RCS/* .*,v *,v
do
case $file in
RCS/. | RCS/..) continue;;
RCS/.\* | RCS/\* | .\*,v | \*,v) test -f "$file" || continue
esac
files=$files$nl$file
done
case $files in
'') exit 0
esac
esac
set x $files
shift
IFS=$oldIFS
esac
esac
llogout=$TMPDIR/rcs2log$$l
rlogout=$TMPDIR/rcs2log$$r
trap exit 1 2 13 15
trap "rm -f $llogout $rlogout; exit 1" 0
case $datearg in
?*) $rlog $rlog_options "$datearg" ${1+"$@"} >$rlogout;;
'') $rlog $rlog_options ${1+"$@"} >$rlogout
esac || exit
# Get the full name of each author the logs mention, and set initialize_fullname
# to awk code that initializes the `fullname' awk associative array.
# Warning: foreign authors (i.e. not known in the passwd file) are mishandled;
# you have to fix the resulting output by hand.
initialize_fullname=
initialize_mailaddr=
case $loginFullnameMailaddrs in
?*)
case $loginFullnameMailaddrs in
*\"* | *\\*)
sed 's/["\\]/\\&/g' >$llogout <<EOF || exit
$loginFullnameMailaddrs
EOF
loginFullnameMailaddrs=`cat $llogout`
esac
oldIFS=$IFS
IFS=$nl
for loginFullnameMailaddr in $loginFullnameMailaddrs
do
case $loginFullnameMailaddr in
*"$tab"*) IFS=$tab;;
*) IFS=:
esac
set x $loginFullnameMailaddr
login=$2
fullname=$3
mailaddr=$4
initialize_fullname="$initialize_fullname
fullname[\"$login\"] = \"$fullname\""
initialize_mailaddr="$initialize_mailaddr
mailaddr[\"$login\"] = \"$mailaddr\""
done
IFS=$oldIFS
esac
case $llogout in
?*) sort -u -o $llogout <<EOF || exit
$logins
EOF
esac
output_authors='/^date: / {
if ($2 ~ /^[0-9]*[-\/][0-9][0-9][-\/][0-9][0-9]$/ && $3 ~ /^[0-9][0-9]:[0-9][0-9]:[0-9][0-9][-+0-9:]*;$/ && $4 == "author:" && $5 ~ /^[^;]*;$/) {
print substr($5, 1, length($5)-1)
}
}'
authors=`
$AWK "$output_authors" <$rlogout |
case $llogout in
'') sort -u;;
?*) sort -u | comm -23 - $llogout
esac
`
case $authors in
?*)
cat >$llogout <<EOF || exit
$authors
EOF
initialize_author_script='s/["\\]/\\&/g; s/.*/author[\"&\"] = 1/'
initialize_author=`sed -e "$initialize_author_script" <$llogout`
awkscript='
BEGIN {
alphabet = "abcdefghijklmnopqrstuvwxyz"
ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
'"$initialize_author"'
}
{
if (author[$1]) {
fullname = $5
if (fullname ~ /[0-9]+-[^(]*\([0-9]+\)$/) {
# Remove the junk from fullnames like "0000-Admin(0000)".
fullname = substr(fullname, index(fullname, "-") + 1)
fullname = substr(fullname, 1, index(fullname, "(") - 1)
}
if (fullname ~ /,[^ ]/) {
# Some sites put comma-separated junk after the fullname.
# Remove it, but leave "Bill Gates, Jr" alone.
fullname = substr(fullname, 1, index(fullname, ",") - 1)
}
abbr = index(fullname, "&")
if (abbr) {
a = substr($1, 1, 1)
A = a
i = index(alphabet, a)
if (i) A = substr(ALPHABET, i, 1)
fullname = substr(fullname, 1, abbr-1) A substr($1, 2) substr(fullname, abbr+1)
}
# Quote quotes and backslashes properly in full names.
# Do not use gsub; traditional awk lacks it.
quoted = ""
rest = fullname
for (;;) {
p = index(rest, "\\")
q = index(rest, "\"")
if (p) {
if (q && q<p) p = q
} else {
if (!q) break
p = q
}
quoted = quoted substr(rest, 1, p-1) "\\" substr(rest, p, 1)
rest = substr(rest, p+1)
}
printf "fullname[\"%s\"] = \"%s%s\"\n", $1, quoted, rest
author[$1] = 0
}
}
'
initialize_fullname=`
(
cat /etc/passwd
for author in $authors
do nismatch $author passwd.org_dir
done
ypmatch $authors passwd
) 2>/dev/null |
$AWK -F: "$awkscript"
`$initialize_fullname
esac
# Function to print a single log line.
# We don't use awk functions, to stay compatible with old awk versions.
# `Log' is the log message (with \n replaced by \r).
# `files' contains the affected files.
printlogline='{
# Following the GNU coding standards, rewrite
# * file: (function): comment
# to
# * file (function): comment
if (Log ~ /^\([^)]*\): /) {
i = index(Log, ")")
files = files " " substr(Log, 1, i)
Log = substr(Log, i+3)
}
# If "label: comment" is too long, break the line after the ":".
sep = " "
if ('"$length"' <= '"$indent"' + 1 + length(files) + index(Log, CR)) sep = "\n" indent_string
# Print the label.
printf "%s*%s:", indent_string, files
# Print each line of the log, transliterating \r to \n.
while ((i = index(Log, CR)) != 0) {
logline = substr(Log, 1, i-1)
if (logline ~ /[^'"$tab"' ]/) {
printf "%s%s\n", sep, logline
} else {
print ""
}
sep = indent_string
Log = substr(Log, i+1)
}
}'
# Pattern to match the `revision' line of rlog output.
rlog_revision_pattern='^revision [0-9]+\.[0-9]+(\.[0-9]+\.[0-9]+)*(['"$tab"' ]+locked by: [^'"$tab"' $,.0-9:;@]*[^'"$tab"' $,:;@][^'"$tab"' $,.0-9:;@]*;)?['"$tab"' ]*$'
case $hostname in
'')
hostname=`(
hostname || uname -n || uuname -l || cat /etc/whoami
) 2>/dev/null` || {
echo >&2 "$0: cannot deduce hostname"
exit 1
}
case $hostname in
*.*) ;;
*)
domainname=`(domainname) 2>/dev/null` &&
case $domainname in
*.*) hostname=$hostname.$domainname
esac
esac
esac
# Process the rlog output, generating ChangeLog style entries.
# First, reformat the rlog output so that each line contains one log entry.
# Transliterate \n to \r so that multiline entries fit on a single line.
# Discard irrelevant rlog output.
$AWK <$rlogout '
BEGIN { repository = "'"$repository"'" }
/^RCS file:/ {
if (repository != "") {
filename = $3
if (substr(filename, 1, length(repository) + 1) == repository "/") {
filename = substr(filename, length(repository) + 2)
}
if (filename ~ /,v$/) {
filename = substr(filename, 1, length(filename) - 2)
}
}
rev = "?"
}
/^Working file:/ { if (repository == "") filename = $3 }
/'"$rlog_revision_pattern"'/, /^(-----------*|===========*)$/ {
if ($0 ~ /'"$rlog_revision_pattern"'/) {
rev = $2
next
}
if ($0 ~ /^date: [0-9][- +\/0-9:]*;/) {
date = $2
if (date ~ /\//) {
# This is a traditional RCS format date YYYY/MM/DD.
# Replace "/"s with "-"s to get ISO format.
newdate = ""
while ((i = index(date, "/")) != 0) {
newdate = newdate substr(date, 1, i-1) "-"
date = substr(date, i+1)
}
date = newdate date
}
time = substr($3, 1, length($3) - 1)
author = substr($5, 1, length($5)-1)
printf "%s %s %s %s %s %c", filename, rev, date, time, author, 13
rev = "?"
next
}
if ($0 ~ /^branches: /) { next }
if ($0 ~ /^(-----------*|===========*)$/) { print ""; next }
printf "%s%c", $0, 13
}
' |
# Now each line is of the form
# FILENAME REVISION YYYY-MM-DD HH:MM:SS[+-TIMEZONE] AUTHOR \rLOG
# where \r stands for a carriage return,
# and each line of the log is terminated by \r instead of \n.
# Sort the log entries, first by date+time (in reverse order),
# then by author, then by log entry, and finally by file name and revision
# (just in case).
sort +2 -4r +4 +0 |
# Finally, reformat the sorted log entries.
$AWK '
BEGIN {
logTZ = "'"$logTZ"'"
revision = "'"$revision"'"
# Some awk variants do not understand "\r" or "\013", so we have to
# put a carriage return directly in the file.
CR="
" # <-- There is a single CR between the " chars here.
# Initialize the fullname and mailaddr associative arrays.
'"$initialize_fullname"'
'"$initialize_mailaddr"'
# Initialize indent string.
indent_string = ""
i = '"$indent"'
if (0 < '"$tabwidth"')
for (; '"$tabwidth"' <= i; i -= '"$tabwidth"')
indent_string = indent_string "\t"
while (1 <= i--)
indent_string = indent_string " "
}
{
newlog = substr($0, 1 + index($0, CR))
# Ignore log entries prefixed by "#".
if (newlog ~ /^#/) { next }
if (Log != newlog || date != $3 || author != $5) {
# The previous log and this log differ.
# Print the old log.
if (date != "") '"$printlogline"'
# Logs that begin with "{clumpname} " should be grouped together,
# and the clumpname should be removed.
# Extract the new clumpname from the log header,
# and use it to decide whether to output a blank line.
newclumpname = ""
sep = "\n"
if (date == "") sep = ""
if (newlog ~ /^\{[^'"$tab"' }]*}['"$tab"' ]/) {
i = index(newlog, "}")
newclumpname = substr(newlog, 1, i)
while (substr(newlog, i+1) ~ /^['"$tab"' ]/) i++
newlog = substr(newlog, i+1)
if (clumpname == newclumpname) sep = ""
}
printf sep
clumpname = newclumpname
# Get ready for the next log.
Log = newlog
if (files != "")
for (i in filesknown)
filesknown[i] = 0
files = ""
}
if (date != $3 || author != $5) {
# The previous date+author and this date+author differ.
# Print the new one.
date = $3
time = $4
author = $5
zone = ""
if (logTZ && ((i = index(time, "-")) || (i = index(time, "+"))))
zone = " " substr(time, i)
# Print "date[ timezone] fullname <email address>".
# Get fullname and email address from associative arrays;
# default to author and author@hostname if not in arrays.
if (fullname[author])
auth = fullname[author]
else
auth = author
printf "%s%s %s ", date, zone, auth
if (mailaddr[author])
printf "<%s>\n\n", mailaddr[author]
else
printf "<%s@%s>\n\n", author, "'"$hostname"'"
}
if (! filesknown[$1]) {
filesknown[$1] = 1
if (files == "") files = " " $1
else files = files ", " $1
if (revision && $2 != "?") files = files " " $2
}
}
END {
# Print the last log.
if (date != "") {
'"$printlogline"'
printf "\n"
}
}
' &&
# Exit successfully.
exec rm -f $llogout $rlogout
# Local Variables:
# tab-width:4
# End: