git-format-patch-script

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 . git-sh-setup-script || die "Not a git archive."
   7
   8 usage () {
   9     echo >&2 "usage: $0"' [-n] [-o dir] [--mbox] [--check] [-<diff options>...] upstream [ our-head ]
  10
  11 Prepare each commit with its patch since our-head forked from upstream,
  12 one file per patch, for e-mail submission.  Each output file is
  13 numbered sequentially from 1, and uses the first line of the commit
  14 message (massaged for pathname safety) as the filename.
  15
  16 When -o is specified, output files are created in that directory; otherwise in
  17 the current working directory.
  18
  19 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
  20 as "[PATCH N/M] Subject", unless you have only one patch.
  21
  22 When --mbox is specified, the output is formatted to resemble
  23 UNIX mailbox format, and can be concatenated together for processing
  24 with applymbox.
  25 '
  26     exit 1
  27 }
  28
  29 diff_opts=
  30 IFS='
  31 '
  32 LF='
  33 '
  34
  35 outdir=./
  36 while case "$#" in 0) break;; esac
  37 do
  38     case "$1" in
  39     -a|--a|--au|--aut|--auth|--autho|--author)
  40     author=t ;;
  41     -c|--c|--ch|--che|--chec|--check)
  42     check=t ;;
  43     -d|--d|--da|--dat|--date)
  44     date=t ;;
  45     -m|--m|--mb|--mbo|--mbox)
  46     date=t author=t mbox=t ;;
  47     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  48     numbered=t ;;
  49     -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
  50     --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
  51     --output-direc=*|--output-direct=*|--output-directo=*|\
  52     --output-director=*|--output-directory=*)
  53     outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  54     -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
  55     --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
  56     --output-directo|--output-director|--output-directory)
  57     case "$#" in 1) usage ;; esac; shift
  58     outdir="$1" ;;
  59     -*) diff_opts="$diff_opts$LF$1" ;;
  60     *) break ;;
  61     esac
  62     shift
  63 done
  64
  65 revpair=
  66 case "$#" in
  67 2)
  68     revpair="$1..$2" ;;
  69 1)
  70     case "$1" in
  71     *..*)
  72         revpair="$1";;
  73     *)
  74         revpair="$1..HEAD";;
  75     esac ;;
  76 *)
  77     usage ;;
  78 esac
  79
  80 me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
  81
  82 case "$outdir" in
  83 */) ;;
  84 *) outdir="$outdir/" ;;
  85 esac
  86 test -d "$outdir" || mkdir -p "$outdir" || exit
  87
  88 tmp=.tmp-series$$
  89 trap 'rm -f $tmp-*' 0 1 2 3 15
  90
  91 series=$tmp-series
  92 commsg=$tmp-commsg
  93 filelist=$tmp-files
  94
  95 titleScript='
  96         /./d
  97         /^$/n
  98         s/^\[PATCH[^]]*\] *//
  99         s/[^-a-z.A-Z_0-9]/-/g
 100         s/\.\.\.*/\./g
 101         s/\.*$//
 102         s/--*/-/g
 103         s/^-//
 104         s/-$//
 105         s/$/./
 106         p
 107         q
 108 '
 109
 110 whosepatchScript='
 111 /^author /{
 112         s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
 113         q
 114 }'
 115
 116 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 117 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
 118 stripCommitHead='/^'"$_x40"' (from '"$_x40"')$/d'
 119
 120 git-rev-list --no-merges --merge-order \
 121         $(git-rev-parse --revs-only "$revpair") >$series
 122 total=`wc -l <$series | tr -dc "[0-9]"`
 123 i=$total
 124 while read commit
 125 do
 126     git-cat-file commit "$commit" | git-stripspace >$commsg
 127     title=`sed -ne "$titleScript" <$commsg`
 128     case "$numbered" in
 129     '') num= ;;
 130     *)
 131         case $total in
 132         1) num= ;;
 133         *) num=' '`printf "%d/%d" $i $total` ;;
 134         esac
 135     esac
 136
 137     file=`printf '%04d-%stxt' $i "$title"`
 138     i=`expr "$i" - 1`
 139     echo >&2 "* $file"
 140     {
 141         mailScript='
 142         /./d
 143         /^$/n
 144         s|^\[PATCH[^]]*\] *||'
 145
 146         case "$mbox" in
 147         t)
 148             echo 'From nobody Mon Sep 17 00:00:00 2001' ;# UNIX "From" line
 149             mailScript="$mailScript"'
 150             s|^|Subject: [PATCH'"$num"'] |'
 151             ;;
 152         *)
 153             mailScript="$mailScript"'
 154             s|^|[PATCH'"$num"'] |'
 155             ;;
 156         esac
 157
 158         eval "$(sed -ne "$whosepatchScript" $commsg)"
 159         test "$author,$au" = ",$me" || {
 160                 mailScript="$mailScript"'
 161         a\
 162 From: '"$au"
 163         }
 164         test "$date,$au" = ",$me" || {
 165                 mailScript="$mailScript"'
 166         a\
 167 Date: '"$ad"
 168         }
 169
 170         mailScript="$mailScript"'
 171         : body
 172         p
 173         n
 174         b body'
 175
 176         sed -ne "$mailScript" <$commsg
 177         echo '---'
 178         echo
 179         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 180         echo
 181         git-diff-tree -p $diff_opts "$commit" | sed -e "$stripCommitHead"
 182
 183         case "$mbox" in
 184         t)
 185                 echo
 186                 ;;
 187         esac
 188     } >"$outdir$file"
 189     case "$check" in
 190     t)
 191         # This is slightly modified from Andrew Morton's Perfect Patch.
 192         # Lines you introduce should not have trailing whitespace.
 193         # Also check for an indentation that has SP before a TAB.
 194         grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 195
 196         : do not exit with non-zero because we saw no problem in the last one.
 197     esac
 198 done <$series