#!/bin/sh # RCS to ChangeLog generator # $Id: rcs2log,v 1.2 1992/09/27 01:55:21 roland Exp $ # 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 `}'. # 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 # 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. # It's a good thing `rlog' doesn't mind a time ending in `:60'. e=' /^... ... [ 0-9][0-9] [ 0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9]+ /{ printf "%s%02d %s\n", substr($0,1,17), substr($0,18,2)+1, $5 exit } ' d=`awk "$e" $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, "\r")) 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, "\r")) != 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 \r", filename, $2, time, author next } if ($0 ~ /^(-----------*|===========*)$/) { print ""; next } printf "%s\r", $0 } ' | # Now each line is of the form # FILENAME YYYY/MM/DD HH:MM:SS AUTHOR \rLOG # where \r stands for a carriage return, # and each line of the log is terminated by \r instead of \n. # Sort the log entries, first by date+time (in reverse order), # then by author, then by log entry, and finally by file name (just in case). sort +1 -3r +3 +0 | # Finally, reformat the sorted log entries. awk ' BEGIN { # Initialize the fullname associative array. '"$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" 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 } { newlog = substr($0, 1 + index($0, "\r")) # 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