contrib/gitfeedmaillist.sh

   1 #!/usr/bin/env bash
   2 #
   3 # Generate a mail feed for a commits list.
   4 #
   5 # Based on 'gitlog.sh' originally written by (c) Ross Vandegrift.
   6 # Adapted to his scripts set by (c) Petr Baudis, 2005.
   7 # Major optimizations by (c) Phillip Lougher.
   8 #
   9 # Takes an id resolving to a commit to start from (HEAD by default).
  10
  11 # regex for parent declarations
  12 PARENTS="^parent [A-Za-z0-9]{40}$"
  13
  14 TMPCL=$(mktemp -t gitmail.XXXXXX)
  15 TMPCM=$(mktemp -t gitmail.XXXXXX)
  16 TMPML=$(mktemp -t gitmail.XXXXXX)
  17 TMPMD=$(mktemp -td gitmail.XXXXXX)
  18
  19 FROM=`whoami`@`hostname`
  20 #SENDMAIL=/usr/lib/sendmail
  21 #MLIST=`whoami`@`hostname`
  22 # Unless configured otherwise, just cat it instead of mailing.
  23 SENDMAIL=tee --append
  24 MLIST=git-commits-mail.out
  25
  26 # takes an object and generates the object's parent(s)
  27 createmails () {
  28         local parents new_parent
  29         declare -a new_parent
  30
  31         new_parent=("$@")
  32         parents=$#
  33
  34         while [ $parents -gt 0 ]; do
  35                 parent=${new_parent[$(($parents-1))]}
  36
  37                 echo $parent >> $TMPCL
  38
  39                 parents=0
  40                 ignoredparents=0
  41                 lastparent=
  42                 SUBJECT=
  43
  44                 git-cat-file commit $parent > $TMPCM
  45
  46                 while read key rest; do
  47                     case "$key" in
  48                         "")
  49                             read SUBJECT
  50                             echo ""
  51                             echo "$SUBJECT"
  52                             cat
  53                             break;
  54                             ;;
  55
  56                         "parent")
  57                             echo "parent $rest"
  58                             if grep -q $rest $TMPCL; then
  59                                 ignoredparents=$(($ignoredparents+1))
  60                                 lastparent=$rest
  61                             else
  62                                 new_parent[$parents]=$rest
  63                                 parents=$(($parents+1))
  64                             fi
  65                             ;;
  66
  67                         "author"|"committer")
  68                             date=(${rest#*> })
  69                             sec=${date[0]}; tz=${date[1]}
  70                             dtz=${tz/+/+ }; dtz=${dtz/-/- }
  71                             pdate="$(date -Rud "1970-01-01 UTC + $sec sec $dtz" 2>/dev/null)"
  72                             if [ "$pdate" ]; then
  73                                 echo $key $rest | sed "s/>.*/> ${pdate/+0000/$tz}/"
  74                             else
  75                                 echo "$key $rest"
  76                             fi
  77                             ;;
  78
  79                         *)
  80                             echo "$key $rest"
  81                             ;;
  82                     esac
  83                 done > $TMPML < $TMPCM
  84
  85                 if [ $(($parents+$ignoredparents)) -eq 1 ]; then
  86                     [ -z "$lastparent" ] && lastparent=${new_parent[0]}
  87                     # Only one parent; not a merge. Mail this cset
  88                     ( cat <<EOF
  89 From: $FROM
  90 To: $MLIST
  91 Subject: $SUBJECT
  92 MIME-Version: 1.0
  93 Content-Type: text/plain; charset=UTF-8
  94 X-Git-Commit: $parent
  95 X-Git-Parent: $lastparent
  96
  97 EOF
  98                     cat $TMPML
  99                     echo
 100                     cg-diff -r $lastparent -r $parent > $TMPCM
 101                     diffstat -p1 $TMPCM 2>/dev/null
 102                     echo
 103                     cat $TMPCM
 104                         ) > $TMPMD/$parent
 105                     echo Mail: $SUBJECT
 106                 fi
 107
 108                 i=0
 109                 while [ $i -lt $(($parents-1)) ]; do
 110                         createmails ${new_parent[$i]}
 111                         i=$(($i+1))
 112                 done
 113         done
 114 }
 115
 116 base=$(cg-object-id -c $1)
 117
 118 if [ -z $2 ]; then
 119     lastmail=`cat .git/tags/MailDone`
 120 else
 121     lastmail=$(cg-object-id -c $2)
 122 fi
 123
 124 #if [ -z $3 ]; then
 125 #    tagname=`ls -rt .git/tags | grep -v MailDone | tail -1`
 126 #    release=`cat .git/tags/$tagname`
 127 #else
 128 #    release=$(gitXnormid.sh -c $3)
 129 #fi
 130
 131 base=$(cg-object-id -c $1) || exit 1
 132
 133
 134 if [ "$base" != "$lastmail" ]; then
 135     # List the commits at which we should stop following the tree, because
 136     # we've come back to commits which were already in $lastmail.
 137     git-rev-tree --edges $base $lastmail | cut -f2- -d\  |  sed 's/[a-z0-9]*:1//g' >> $TMPCL
 138
 139     createmails $base
 140     # No 'cg-tag -F' -- cheat.
 141     echo $base > .git/tags/MailDone
 142     tac $TMPCL | while read commit; do
 143         if [ -r "$TMPMD/$commit" ]; then
 144             $SENDMAIL $MLIST < $TMPMD/$commit
 145         fi
 146     done
 147 fi
 148 rm $TMPCL $TMPCM $TMPML
 149 rm -rf $TMPMD