git-format-patch-script

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 usage () {
   7     echo >&2 "usage: $0"' [-n] [-o dir] [--mbox] [--check] [-<diff options>...] upstream [ our-head ]
   8
   9 Prepare each commit with its patch since our-head forked from upstream,
  10 one file per patch, for e-mail submission.  Each output file is
  11 numbered sequentially from 1, and uses the first line of the commit
  12 message (massaged for pathname safety) as the filename.
  13
  14 When -o is specified, output files are created in that directory; otherwise in
  15 the current working directory.
  16
  17 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
  18 as "[PATCH N/M] Subject", unless you have only one patch.
  19
  20 When --mbox is specified, the output is formatted to resemble
  21 UNIX mailbox format, and can be concatenated together for processing
  22 with applymbox.
  23 '
  24     exit 1
  25 }
  26
  27 diff_opts=
  28 IFS='
  29 '
  30 LF='
  31 '
  32
  33 outdir=./
  34 while case "$#" in 0) break;; esac
  35 do
  36     case "$1" in
  37     -a|--a|--au|--aut|--auth|--autho|--author)
  38     author=t ;;
  39     -c|--c|--ch|--che|--chec|--check)
  40     check=t ;;
  41     -d|--d|--da|--dat|--date)
  42     date=t ;;
  43     -m|--m|--mb|--mbo|--mbox)
  44     date=t author=t mbox=t ;;
  45     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  46     numbered=t ;;
  47     -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
  48     --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
  49     --output-direc=*|--output-direct=*|--output-directo=*|\
  50     --output-director=*|--output-directory=*)
  51     outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  52     -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
  53     --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
  54     --output-directo|--output-director|--output-directory)
  55     case "$#" in 1) usage ;; esac; shift
  56     outdir="$1" ;;
  57     -*) diff_opts="$diff_opts$LF$1" ;;
  58     *) break ;;
  59     esac
  60     shift
  61 done
  62
  63 case "$#" in
  64 2)    linus="$1" junio="$2" ;;
  65 1)    linus="$1" junio=HEAD ;;
  66 *)    usage ;;
  67 esac
  68 junio=`git-rev-parse --verify "$junio"`
  69 linus=`git-rev-parse --verify "$linus"`
  70
  71 me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
  72
  73 case "$outdir" in
  74 */) ;;
  75 *) outdir="$outdir/" ;;
  76 esac
  77 test -d "$outdir" || mkdir -p "$outdir" || exit
  78
  79 tmp=.tmp-series$$
  80 trap 'rm -f $tmp-*' 0 1 2 3 15
  81
  82 series=$tmp-series
  83 commsg=$tmp-commsg
  84 filelist=$tmp-files
  85
  86 titleScript='
  87         /./d
  88         /^$/n
  89         s/^\[PATCH[^]]*\] *//
  90         s/[^-a-z.A-Z_0-9]/-/g
  91         s/\.\.\.*/\./g
  92         s/\.*$//
  93         s/--*/-/g
  94         s/^-//
  95         s/-$//
  96         s/$/./
  97         p
  98         q
  99 '
 100
 101 whosepatchScript='
 102 /^author /{
 103         s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
 104         q
 105 }'
 106
 107 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 108 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
 109 stripCommitHead='/^'"$_x40"' (from '"$_x40"')$/d'
 110
 111 git-rev-list --merge-order "$junio" "^$linus" >$series
 112 total=`wc -l <$series | tr -dc "[0-9]"`
 113 i=$total
 114 while read commit
 115 do
 116     git-cat-file commit "$commit" | git-stripspace >$commsg
 117     title=`sed -ne "$titleScript" <$commsg`
 118     case "$numbered" in
 119     '') num= ;;
 120     *)
 121         case $total in
 122         1) num= ;;
 123         *) num=' '`printf "%d/%d" $i $total` ;;
 124         esac
 125     esac
 126
 127     file=`printf '%04d-%stxt' $i "$title"`
 128     i=`expr "$i" - 1`
 129     echo >&2 "* $file"
 130     {
 131         mailScript='
 132         /./d
 133         /^$/n
 134         s|^\[PATCH[^]]*\] *||'
 135
 136         case "$mbox" in
 137         t)
 138             echo 'From nobody Mon Sep 17 00:00:00 2001' ;# UNIX "From" line
 139             mailScript="$mailScript"'
 140             s|^|Subject: [PATCH'"$num"'] |'
 141             ;;
 142         *)
 143             mailScript="$mailScript"'
 144             s|^|[PATCH'"$num"'] |'
 145             ;;
 146         esac
 147
 148         eval "$(sed -ne "$whosepatchScript" $commsg)"
 149         test "$author,$au" = ",$me" || {
 150                 mailScript="$mailScript"'
 151         a\
 152 From: '"$au"
 153         }
 154         test "$date,$au" = ",$me" || {
 155                 mailScript="$mailScript"'
 156         a\
 157 Date: '"$ad"
 158         }
 159
 160         mailScript="$mailScript"'
 161         : body
 162         p
 163         n
 164         b body'
 165
 166         sed -ne "$mailScript" <$commsg
 167         echo '---'
 168         echo
 169         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 170         echo
 171         git-diff-tree -p $diff_opts "$commit" | sed -e "$stripCommitHead"
 172
 173         case "$mbox" in
 174         t)
 175                 echo
 176                 ;;
 177         esac
 178     } >"$outdir$file"
 179     case "$check" in
 180     t)
 181         # This is slightly modified from Andrew Morton's Perfect Patch.
 182         # Lines you introduce should not have trailing whitespace.
 183         # Also check for an indentation that has SP before a TAB.
 184         grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 185
 186         : do not exit with non-zero because we saw no problem in the last one.
 187     esac
 188 done <$series