git-format-patch.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 . git-sh-setup
   7
   8 # Force diff to run in C locale.
   9 LANG=C LC_ALL=C
  10 export LANG LC_ALL
  11
  12 usage () {
  13     echo >&2 "usage: $0"' [-n] [-o dir | --stdout] [--keep-subject] [--mbox]
  14     [--check] [--signoff] [-<diff options>...]
  15     [--help]
  16     ( from..to ... | upstream [ our-head ] )
  17
  18 Prepare each commit with its patch since our-head forked from upstream,
  19 one file per patch, for e-mail submission.  Each output file is
  20 numbered sequentially from 1, and uses the first line of the commit
  21 message (massaged for pathname safety) as the filename.
  22
  23 When -o is specified, output files are created in that directory; otherwise in
  24 the current working directory.
  25
  26 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
  27 as "[PATCH N/M] Subject", unless you have only one patch.
  28
  29 When --mbox is specified, the output is formatted to resemble
  30 UNIX mailbox format, and can be concatenated together for processing
  31 with applymbox.
  32 '
  33     exit 1
  34 }
  35
  36 diff_opts=
  37 LF='
  38 '
  39
  40 outdir=./
  41 while case "$#" in 0) break;; esac
  42 do
  43     case "$1" in
  44     -a|--a|--au|--aut|--auth|--autho|--author)
  45     author=t ;;
  46     -c|--c|--ch|--che|--chec|--check)
  47     check=t ;;
  48     -d|--d|--da|--dat|--date)
  49     date=t ;;
  50     -m|--m|--mb|--mbo|--mbox)
  51     date=t author=t mbox=t ;;
  52     -k|--k|--ke|--kee|--keep|--keep-|--keep-s|--keep-su|--keep-sub|\
  53     --keep-subj|--keep-subje|--keep-subjec|--keep-subject)
  54     keep_subject=t ;;
  55     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  56     numbered=t ;;
  57     -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
  58     signoff=t ;;
  59     --st|--std|--stdo|--stdou|--stdout)
  60     stdout=t mbox=t date=t author=t ;;
  61     -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
  62     --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
  63     --output-direc=*|--output-direct=*|--output-directo=*|\
  64     --output-director=*|--output-directory=*)
  65     outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  66     -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
  67     --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
  68     --output-directo|--output-director|--output-directory)
  69     case "$#" in 1) usage ;; esac; shift
  70     outdir="$1" ;;
  71     -h|--h|--he|--hel|--help)
  72         usage
  73         ;;
  74     -*' '* | -*"$LF"* | -*'     '*)
  75         # Ignore diff option that has whitespace for now.
  76         ;;
  77     -*) diff_opts="$diff_opts$1 " ;;
  78     *) break ;;
  79     esac
  80     shift
  81 done
  82
  83 case "$keep_subject$numbered" in
  84 tt)
  85         die '--keep-subject and --numbered are incompatible.' ;;
  86 esac
  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 # Backward compatible argument parsing hack.
  96 #
  97 # Historically, we supported:
  98 # 1. "rev1"             is equivalent to "rev1..HEAD"
  99 # 2. "rev1..rev2"
 100 # 3. "rev1" "rev2       is equivalent to "rev1..rev2"
 101 #
 102 # We want to take a sequence of "rev1..rev2" in general.
 103 # Also, "rev1.." should mean "rev1..HEAD"; git-diff users are
 104 # familiar with that syntax.
 105
 106 case "$#,$1$2" in
 107 1,?*..?*)
 108         # single "rev1..rev2"
 109         ;;
 110 1,?*..)
 111         # single "rev1.." should mean "rev1..HEAD"
 112         set x "$1"HEAD
 113         shift
 114         ;;
 115 1,*)
 116         # single rev1
 117         set x "$1..HEAD"
 118         shift
 119         ;;
 120 2,?*..?*)
 121         # not traditional "rev1" "rev2"
 122         ;;
 123 2,*)
 124         set x "$1..$2"
 125         shift
 126         ;;
 127 esac
 128
 129 # Now we have what we want in $@
 130 for revpair
 131 do
 132         case "$revpair" in
 133         ?*..?*)
 134                 rev1=`expr "$revpair" : '\(.*\)\.\.'`
 135                 rev2=`expr "$revpair" : '.*\.\.\(.*\)'`
 136                 ;;
 137         *)
 138                 rev1="$revpair^"
 139                 rev2="$revpair"
 140                 ;;
 141         esac
 142         git-rev-parse --verify "$rev1^0" >/dev/null 2>&1 ||
 143                 die "Not a valid rev $rev1 ($revpair)"
 144         git-rev-parse --verify "$rev2^0" >/dev/null 2>&1 ||
 145                 die "Not a valid rev $rev2 ($revpair)"
 146         git-cherry -v "$rev1" "$rev2" |
 147         while read sign rev comment
 148         do
 149                 case "$sign" in
 150                 '-')
 151                         echo >&2 "Merged already: $comment"
 152                         ;;
 153                 *)
 154                         echo $rev
 155                         ;;
 156                 esac
 157         done
 158 done >$series
 159
 160 me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
 161
 162 case "$outdir" in
 163 */) ;;
 164 *) outdir="$outdir/" ;;
 165 esac
 166 test -d "$outdir" || mkdir -p "$outdir" || exit
 167
 168 titleScript='
 169         /./d
 170         /^$/n
 171         s/^\[PATCH[^]]*\] *//
 172         s/[^-a-z.A-Z_0-9]/-/g
 173         s/\.\.\.*/\./g
 174         s/\.*$//
 175         s/--*/-/g
 176         s/^-//
 177         s/-$//
 178         s/$/./
 179         p
 180         q
 181 '
 182
 183 whosepatchScript='
 184 /^author /{
 185         s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
 186         q
 187 }'
 188
 189 process_one () {
 190         mailScript='
 191         /./d
 192         /^$/n'
 193         case "$keep_subject" in
 194         t)  ;;
 195         *)
 196             mailScript="$mailScript"'
 197             s|^\[PATCH[^]]*\] *||
 198             s|^|[PATCH'"$num"'] |'
 199             ;;
 200         esac
 201         mailScript="$mailScript"'
 202         s|^|Subject: |'
 203         case "$mbox" in
 204         t)
 205             echo 'From nobody Mon Sep 17 00:00:00 2001' ;# UNIX "From" line
 206             ;;
 207         esac
 208
 209         eval "$(sed -ne "$whosepatchScript" $commsg)"
 210         test "$author,$au" = ",$me" || {
 211                 mailScript="$mailScript"'
 212         a\
 213 From: '"$au"
 214         }
 215         test "$date,$au" = ",$me" || {
 216                 mailScript="$mailScript"'
 217         a\
 218 Date: '"$ad"
 219         }
 220
 221         mailScript="$mailScript"'
 222         : body
 223         p
 224         n
 225         b body'
 226
 227         (cat $commsg ; echo; echo) |
 228         sed -ne "$mailScript" |
 229         git-stripspace
 230
 231         test "$signoff" = "t" && {
 232                 offsigner=`git-var GIT_COMMITTER_IDENT | sed -e 's/>.*/>/'`
 233                 line="Signed-off-by: $offsigner"
 234                 grep -q "^$line\$" $commsg || {
 235                         echo
 236                         echo "$line"
 237                         echo
 238                 }
 239         }
 240         echo
 241         echo '---'
 242         echo
 243         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 244         echo
 245         git-diff-tree -p $diff_opts "$commit"
 246         echo "-- "
 247         echo "@@GIT_VERSION@@"
 248
 249         case "$mbox" in
 250         t)
 251                 echo
 252                 ;;
 253         esac
 254 }
 255
 256 total=`wc -l <$series | tr -dc "[0-9]"`
 257 i=1
 258 while read commit
 259 do
 260     git-cat-file commit "$commit" | git-stripspace >$commsg
 261     title=`sed -ne "$titleScript" <$commsg`
 262     case "$numbered" in
 263     '') num= ;;
 264     *)
 265         case $total in
 266         1) num= ;;
 267         *) num=' '`printf "%d/%d" $i $total` ;;
 268         esac
 269     esac
 270
 271     file=`printf '%04d-%stxt' $i "$title"`
 272     if test '' = "$stdout"
 273     then
 274             echo "$file"
 275             process_one >"$outdir$file"
 276             if test t = "$check"
 277             then
 278                 # This is slightly modified from Andrew Morton's Perfect Patch.
 279                 # Lines you introduce should not have trailing whitespace.
 280                 # Also check for an indentation that has SP before a TAB.
 281                 grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 282                 :
 283             fi
 284     else
 285             echo >&2 "$file"
 286             process_one
 287     fi
 288     i=`expr "$i" + 1`
 289 done <$series