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