git-format-patch-script

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 usage () {
   7     echo >&2 "usage: $0"' [-n] [-o dir] [-<diff options>...] upstream [ our-head ]
   8
   9 Prepare each commit with its patch since our-head forked from upstream,
  10 one file per patch, for e-mail submission.  Each output file is
  11 numbered sequentially from 1, and uses the first line of the commit
  12 message (massaged for pathname safety) as the filename.
  13
  14 When -o is specified, output files are created in that directory; otherwise in
  15 the current working directory.
  16
  17 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
  18 as "[PATCH N/M] Subject", unless you have only one patch.
  19 '
  20     exit 1
  21 }
  22
  23 diff_opts=
  24 IFS='
  25 '
  26 LF='
  27 '
  28 outdir=./
  29
  30 while case "$#" in 0) break;; esac
  31 do
  32     case "$1" in
  33     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  34     numbered=t ;;
  35     -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
  36     --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
  37     --output-direc=*|--output-direct=*|--output-directo=*|\
  38     --output-director=*|--output-directory=*)
  39     outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  40     -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
  41     --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
  42     --output-directo|--output-director|--output-directory)
  43     case "$#" in 1) usage ;; esac; shift
  44     outdir="$1" ;;
  45     -*) diff_opts="$diff_opts$LF$1" ;;
  46     *) break ;;
  47     esac
  48     shift
  49 done
  50
  51 case "$#" in
  52 2)    linus="$1" junio="$2" ;;
  53 1)    linus="$1" junio=HEAD ;;
  54 *)    usage ;;
  55 esac
  56
  57 case "$outdir" in
  58 */) ;;
  59 *) outdir="$outdir/" ;;
  60 esac
  61 test -d "$outdir" || mkdir -p "$outdir" || exit
  62
  63 tmp=.tmp-series$$
  64 trap 'rm -f $tmp-*' 0 1 2 3 15
  65
  66 series=$tmp-series
  67
  68 titleScript='
  69         1,/^$/d
  70         : loop
  71         /^$/b loop
  72         s/[^-a-z.A-Z_0-9]/-/g
  73         s/\.\.\.*/\./g
  74         s/\.*$//
  75         s/--*/-/g
  76         s/^-//
  77         s/-$//
  78         s/$/./
  79         q
  80 '
  81
  82 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
  83 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
  84 stripCommitHead='/^'"$_x40"' (from '"$_x40"')$/d'
  85
  86 git-rev-list --merge-order "$junio" "^$linus" >$series
  87 total=`wc -l <$series`
  88 i=$total
  89 while read commit
  90 do
  91     title=`git-cat-file commit "$commit" | sed -e "$titleScript"`
  92     case "$numbered" in
  93     '') num= ;;
  94     *)
  95         case $total in
  96         1) num= ;;
  97         *) num=' '`printf "%d/%d" $i $total` ;;
  98         esac
  99     esac
 100     file=`printf '%04d-%stxt' $i "$title"`
 101     i=`expr "$i" - 1`
 102     echo "$file"
 103     {
 104         mailScript='
 105         1,/^$/d
 106         : loop
 107         /^$/b loop
 108         s|^|[PATCH'"$num"'] |
 109         : body
 110         p
 111         n
 112         b body'
 113
 114         git-cat-file commit "$commit" | sed -ne "$mailScript"
 115         echo '---'
 116         echo
 117         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 118         echo
 119         git-diff-tree -p $diff_opts "$commit" | sed -e "$stripCommitHead"
 120     } >"$outdir$file"
 121 done <$series