mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-25 10:47:00 +00:00
566dd94e41
it to /[\/]/. This should work on all Posix-compliant awks. It's slightly wrong with traditional (Unix version 7) awk, since it also allows \, but that's a minor problem compared to awk syntax errors.
363 lines
9.5 KiB
Bash
Executable File
363 lines
9.5 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
# RCS to ChangeLog generator
|
|
|
|
# Generate a change log prefix from RCS/* and the existing 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 1.10 1993/03/16 22:49:00 eggert Exp eggert $
|
|
|
|
# Copyright 1992, 1993 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, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
|
|
# Parse options.
|
|
|
|
# defaults
|
|
indent=8 # indent of log line
|
|
length=79 # suggested max width of log line
|
|
tabwidth=8 # width of horizontal tab
|
|
|
|
while :
|
|
do
|
|
case $1 in
|
|
-i) indent=${2?};;
|
|
-l) length=${2?};;
|
|
-t) tabwidth=${2?};;
|
|
-*) echo >&2 "$0: usage: $0 [-i indent] [-l length] [-t tabwidth] [file ...]"
|
|
exit 1;;
|
|
*) break
|
|
esac
|
|
shift; 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"
|
|
|
|
# days in non-leap year thus far, indexed by month (0-12)
|
|
mo[0]=0; mo[1]=31; mo[2]=59; mo[3]=90
|
|
mo[4]=120; mo[5]=151; mo[6]=181; mo[7]=212
|
|
mo[8]=243; mo[9]=273; mo[10]=304; mo[11]=334
|
|
mo[12]=365
|
|
'
|
|
|
|
|
|
# Log into $rlogout the revisions checked in since the first ChangeLog entry.
|
|
|
|
date=1970
|
|
if test -s ChangeLog
|
|
then
|
|
# Add 1 to seconds to avoid duplicating most recent log.
|
|
e='
|
|
/^... ... [ 0-9][0-9] [ 0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9]+ /{
|
|
'"$month_data"'
|
|
year = $5
|
|
for (i=0; i<=11; i++) if (m[i] == $2) break
|
|
dd = $3
|
|
hh = substr($0,12,2)
|
|
mm = substr($0,15,2)
|
|
ss = substr($0,18,2)
|
|
ss++
|
|
if (ss == 60) {
|
|
ss = 0
|
|
mm++
|
|
if (mm == 60) {
|
|
mm = 0
|
|
hh++
|
|
if (hh == 24) {
|
|
hh = 0
|
|
dd++
|
|
monthdays = mo[i+1] - mo[i]
|
|
if (i == 1 && year%4 == 0 && (year%100 != 0 || year%400 == 0)) monthdays++
|
|
if (dd == monthdays + 1) {
|
|
dd = 1
|
|
i++
|
|
if (i == 12) {
|
|
i = 0
|
|
year++
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
printf "%d/%02d/%02d %02d:%02d:%02d\n", year, i+1, dd, hh, mm, ss
|
|
exit
|
|
}
|
|
'
|
|
d=`awk "$e" <ChangeLog` || exit
|
|
case $d in
|
|
?*) date=$d
|
|
esac
|
|
fi
|
|
datearg="-d>$date"
|
|
|
|
rlogout=/tmp/chg$$
|
|
trap exit 1 2 13 15
|
|
trap 'rm -f $rlogout; exit 1' 0
|
|
|
|
case $# in
|
|
0) set RCS/*
|
|
esac
|
|
|
|
rlog "$datearg" "$@" >$rlogout || 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=
|
|
authors=`
|
|
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]; *author: *\([^; ]*\).*|\1|p' <$rlogout |
|
|
sort -u
|
|
`
|
|
case $authors in
|
|
?*)
|
|
initialize_author=
|
|
for author in $authors
|
|
do
|
|
initialize_author="$initialize_author
|
|
author[\"$author\"] = 1
|
|
"
|
|
done
|
|
|
|
awkscript='
|
|
BEGIN {
|
|
alphabet = "abcdefghijklmnopqrstuvwxyz"
|
|
ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
'"$initialize_author"'
|
|
}
|
|
{
|
|
if (author[$1]) {
|
|
fullname = $5
|
|
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)
|
|
}
|
|
printf "fullname[\"%s\"] = \"%s\"\n", $1, fullname
|
|
author[$1] = 0
|
|
}
|
|
}
|
|
'
|
|
|
|
initialize_fullname=`
|
|
(cat /etc/passwd; ypmatch $authors passwd) 2>/dev/null |
|
|
awk -F: "$awkscript"
|
|
`
|
|
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) {
|
|
printf "%s%s\n", sep, substr(Log, 1, i-1)
|
|
sep = indent_string
|
|
Log = substr(Log, i+1)
|
|
}
|
|
}'
|
|
|
|
hostname=`(
|
|
hostname || cat /etc/whoami || uuname -l || uname -n
|
|
) 2>/dev/null` || {
|
|
echo >&2 "$0: cannot deduce hostname"
|
|
exit 1
|
|
}
|
|
|
|
|
|
# Process the rlog output, generating ChangeLog style entries.
|
|
|
|
# First, reformat the rlog output so that each line contains one log entry.
|
|
# Transliterate \n to \r so that multiline entries fit on a single line.
|
|
# Discard irrelevant rlog output.
|
|
awk <$rlogout '
|
|
/^Working file:/ { filename = $3 }
|
|
/^date: /, /^(-----------*|===========*)$/ {
|
|
if ($0 ~ /^branches: /) { next }
|
|
if ($0 ~ /^date: [0-9][ \/0-9:]*;/) {
|
|
time = substr($3, 1, length($3)-1)
|
|
author = substr($5, 1, length($5)-1)
|
|
printf "%s %s %s %s %c", filename, $2, time, author, 13
|
|
next
|
|
}
|
|
if ($0 ~ /^(-----------*|===========*)$/) { print ""; next }
|
|
printf "%s%c", $0, 13
|
|
}
|
|
' |
|
|
|
|
# Now each line is of the form
|
|
# FILENAME YYYY/MM/DD HH:MM:SS AUTHOR \rLOG
|
|
# where \r stands for a carriage return,
|
|
# and each line of the log is terminated by \r instead of \n.
|
|
# Sort the log entries, first by date+time (in reverse order),
|
|
# then by author, then by log entry, and finally by file name (just in case).
|
|
sort +1 -3r +3 +0 |
|
|
|
|
# Finally, reformat the sorted log entries.
|
|
awk '
|
|
BEGIN {
|
|
# Some awks do not understand "\r" or "\013", so we have to
|
|
# put a carriage return directly in the file.
|
|
CR="
|
|
" # <-- There is a single CR between the " chars here.
|
|
|
|
# Initialize the fullname associative array.
|
|
'"$initialize_fullname"'
|
|
|
|
# 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 " "
|
|
|
|
# Set up date conversion tables.
|
|
# RCS uses a nice, clean, sortable format,
|
|
# but ChangeLog wants the traditional, ugly ctime format.
|
|
|
|
# January 1, 0 AD (Gregorian) was Saturday = 6
|
|
EPOCH_WEEKDAY = 6
|
|
# Of course, there was no 0 AD, but the algorithm works anyway.
|
|
|
|
w[0]="Sun"; w[1]="Mon"; w[2]="Tue"; w[3]="Wed"
|
|
w[4]="Thu"; w[5]="Fri"; w[6]="Sat"
|
|
|
|
'"$month_data"'
|
|
}
|
|
|
|
{
|
|
newlog = substr($0, 1 + index($0, CR))
|
|
|
|
# Ignore log entries prefixed by "#".
|
|
if (newlog ~ /^#/) { next }
|
|
|
|
if (Log != newlog || date != $2 || author != $4) {
|
|
|
|
# The previous log and this log differ.
|
|
|
|
# Print the old log.
|
|
if (date != "") '"$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 ~ /^{[^ }]*}[ ]/) {
|
|
i = index(newlog, "}")
|
|
newclumpname = substr(newlog, 1, i)
|
|
while (substr(newlog, i+1) ~ /^[ ]/) 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 != $2 || author != $4) {
|
|
# The previous date+author and this date+author differ.
|
|
# Print the new one.
|
|
date = $2
|
|
author = $4
|
|
|
|
# Convert nice RCS date like "1992/01/03 00:03:44"
|
|
# into ugly ctime date like "Fri Jan 3 00:03:44 1992".
|
|
# Calculate day of week from Gregorian calendar.
|
|
i = index($2, "/")
|
|
year = substr($2, 1, i-1) + 0
|
|
monthday = substr($2, i+1)
|
|
i = index(monthday, "/")
|
|
month = substr(monthday, 1, i-1) + 0
|
|
day = substr(monthday, i+1) + 0
|
|
leap = 0
|
|
if (2 < month && year%4 == 0 && (year%100 != 0 || year%400 == 0)) leap = 1
|
|
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
|
|
|
|
# Print "date fullname (email address)" if the fullname is known;
|
|
# print "date author" otherwise.
|
|
# Get the fullname from the associative array.
|
|
# The email address is just author@thishostname.
|
|
printf "%s %s %2d %s %d ", w[days_since_Sunday_before_epoch%7], m[month-1], day, $3, year
|
|
if (fullname[author])
|
|
printf "%s (%s@%s)\n\n", fullname[author], author, "'"$hostname"'"
|
|
else
|
|
printf "%s\n\n", author
|
|
}
|
|
if (! filesknown[$1]) {
|
|
filesknown[$1] = 1
|
|
if (files == "") files = " " $1
|
|
else files = files ", " $1
|
|
}
|
|
}
|
|
END {
|
|
# Print the last log.
|
|
if (date != "") {
|
|
'"$printlogline"'
|
|
printf "\n"
|
|
}
|
|
}
|
|
' &&
|
|
|
|
|
|
# Exit successfully.
|
|
|
|
exec rm -f $rlogout
|