git-format-patch.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 . git-sh-setup || die "Not a git archive."
   7
   8 usage () {
   9     echo >&2 "usage: $0"' [-n] [-o dir] [--keep-subject] [--mbox] [--check] [--signoff] [-<diff options>...] upstream [ our-head ]
  10
  11 Prepare each commit with its patch since our-head forked from upstream,
  12 one file per patch, for e-mail submission.  Each output file is
  13 numbered sequentially from 1, and uses the first line of the commit
  14 message (massaged for pathname safety) as the filename.
  15
  16 When -o is specified, output files are created in that directory; otherwise in
  17 the current working directory.
  18
  19 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
  20 as "[PATCH N/M] Subject", unless you have only one patch.
  21
  22 When --mbox is specified, the output is formatted to resemble
  23 UNIX mailbox format, and can be concatenated together for processing
  24 with applymbox.
  25 '
  26     exit 1
  27 }
  28
  29 diff_opts=
  30 LF='
  31 '
  32
  33 outdir=./
  34 while case "$#" 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     -k|--k|--ke|--kee|--keep|--keep-|--keep-s|--keep-su|--keep-sub|\
  46     --keep-subj|--keep-subje|--keep-subjec|--keep-subject)
  47     keep_subject=t ;;
  48     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  49     numbered=t ;;
  50     -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
  51     signoff=t ;;
  52     -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
  53     --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
  54     --output-direc=*|--output-direct=*|--output-directo=*|\
  55     --output-director=*|--output-directory=*)
  56     outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  57     -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
  58     --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
  59     --output-directo|--output-director|--output-directory)
  60     case "$#" in 1) usage ;; esac; shift
  61     outdir="$1" ;;
  62     -*' '* | -*"$LF"* | -*'     '*)
  63         # Ignore diff option that has whitespace for now.
  64         ;;
  65     -*) diff_opts="$diff_opts$1 " ;;
  66     *) break ;;
  67     esac
  68     shift
  69 done
  70
  71 case "$keep_subject$numbered" in
  72 tt)
  73         die '--keep-subject and --numbered are incompatible.' ;;
  74 esac
  75
  76 rev1= rev2=
  77 case "$#" in
  78 2)
  79     rev1="$1" rev2="$2" ;;
  80 1)
  81     case "$1" in
  82     *..*)
  83         rev1=`expr "$1" : '\(.*\)\.\.'`
  84         rev2=`expr "$1" : '.*\.\.\(.*\)'`
  85         ;;
  86     *)
  87         rev1="$1"
  88         rev2="HEAD"
  89         ;;
  90     esac ;;
  91 *)
  92     usage ;;
  93 esac
  94
  95 me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
  96
  97 case "$outdir" in
  98 */) ;;
  99 *) outdir="$outdir/" ;;
 100 esac
 101 test -d "$outdir" || mkdir -p "$outdir" || exit
 102
 103 tmp=.tmp-series$$
 104 trap 'rm -f $tmp-*' 0 1 2 3 15
 105
 106 series=$tmp-series
 107 commsg=$tmp-commsg
 108 filelist=$tmp-files
 109
 110 titleScript='
 111         /./d
 112         /^$/n
 113         s/^\[PATCH[^]]*\] *//
 114         s/[^-a-z.A-Z_0-9]/-/g
 115         s/\.\.\.*/\./g
 116         s/\.*$//
 117         s/--*/-/g
 118         s/^-//
 119         s/-$//
 120         s/$/./
 121         p
 122         q
 123 '
 124
 125 whosepatchScript='
 126 /^author /{
 127         s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
 128         q
 129 }'
 130
 131 git-cherry -v "$rev1" "$rev2" |
 132 while read sign rev comment
 133 do
 134         case "$sign" in
 135         '-')
 136                 echo >&2 "Merged already: $comment"
 137                 ;;
 138         *)
 139                 echo $rev
 140                 ;;
 141         esac
 142 done >$series
 143
 144 total=`wc -l <$series | tr -dc "[0-9]"`
 145 i=1
 146 while read commit
 147 do
 148     git-cat-file commit "$commit" | git-stripspace >$commsg
 149     title=`sed -ne "$titleScript" <$commsg`
 150     case "$numbered" in
 151     '') num= ;;
 152     *)
 153         case $total in
 154         1) num= ;;
 155         *) num=' '`printf "%d/%d" $i $total` ;;
 156         esac
 157     esac
 158
 159     file=`printf '%04d-%stxt' $i "$title"`
 160     i=`expr "$i" + 1`
 161     echo "* $file"
 162     {
 163         mailScript='
 164         /./d
 165         /^$/n'
 166         case "$keep_subject" in
 167         t)  ;;
 168         *)
 169             mailScript="$mailScript"'
 170             s|^\[PATCH[^]]*\] *||
 171             s|^|[PATCH'"$num"'] |'
 172             ;;
 173         esac
 174         mailScript="$mailScript"'
 175         s|^|Subject: |'
 176         case "$mbox" in
 177         t)
 178             echo 'From nobody Mon Sep 17 00:00:00 2001' ;# UNIX "From" line
 179             ;;
 180         esac
 181         eval "$(sed -ne "$whosepatchScript" $commsg)"
 182         test "$author,$au" = ",$me" || {
 183                 mailScript="$mailScript"'
 184         a\
 185 From: '"$au"
 186         }
 187         test "$date,$au" = ",$me" || {
 188                 mailScript="$mailScript"'
 189         a\
 190 Date: '"$ad"
 191         }
 192
 193         mailScript="$mailScript"'
 194         : body
 195         p
 196         n
 197         b body'
 198
 199         sed -ne "$mailScript" <$commsg
 200
 201         test "$signoff" = "t" && {
 202                 offsigner=`git-var GIT_COMMITTER_IDENT | sed -e 's/>.*/>/'`
 203                 line="Signed-off-by: $offsigner"
 204                 grep -q "^$line\$" $commsg || {
 205                         echo
 206                         echo "$line"
 207                         echo
 208                 }
 209         }
 210         echo
 211         echo '---'
 212         echo
 213         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 214         echo
 215         git-diff-tree -p $diff_opts "$commit"
 216
 217         case "$mbox" in
 218         t)
 219                 echo
 220                 ;;
 221         esac
 222     } >"$outdir$file"
 223     case "$check" in
 224     t)
 225         # This is slightly modified from Andrew Morton's Perfect Patch.
 226         # Lines you introduce should not have trailing whitespace.
 227         # Also check for an indentation that has SP before a TAB.
 228         grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 229
 230         : do not exit with non-zero because we saw no problem in the last one.
 231     esac
 232 done <$series