git-format-patch.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 USAGE='[-n | -k] [-o <dir> | --stdout] [--signoff] [--check] [--mbox] [--diff-options] <upstream> [<our-head>]'
   7 LONG_USAGE='Prepare each commit with its patch since our-head forked from upstream,
   8 one file per patch, for e-mail submission.  Each output file is
   9 numbered sequentially from 1, and uses the first line of the commit
  10 message (massaged for pathname safety) as the filename.
  11
  12 When -o is specified, output files are created in that directory; otherwise in
  13 the current working directory.
  14
  15 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
  16 as "[PATCH N/M] Subject", unless you have only one patch.
  17
  18 When --mbox is specified, the output is formatted to resemble
  19 UNIX mailbox format, and can be concatenated together for processing
  20 with applymbox.'
  21 . git-sh-setup
  22
  23 # Force diff to run in C locale.
  24 LANG=C LC_ALL=C
  25 export LANG LC_ALL
  26
  27 diff_opts=
  28 LF='
  29 '
  30
  31 outdir=./
  32 while case "$#" in 0) break;; esac
  33 do
  34     case "$1" in
  35     -a|--a|--au|--aut|--auth|--autho|--author)
  36     author=t ;;
  37     -c|--c|--ch|--che|--chec|--check)
  38     check=t ;;
  39     -d|--d|--da|--dat|--date)
  40     date=t ;;
  41     -m|--m|--mb|--mbo|--mbox)
  42     date=t author=t mbox=t ;;
  43     -k|--k|--ke|--kee|--keep|--keep-|--keep-s|--keep-su|--keep-sub|\
  44     --keep-subj|--keep-subje|--keep-subjec|--keep-subject)
  45     keep_subject=t ;;
  46     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  47     numbered=t ;;
  48     -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
  49     signoff=t ;;
  50     --st|--std|--stdo|--stdou|--stdout)
  51     stdout=t mbox=t date=t author=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="$1" ;;
  62     -h|--h|--he|--hel|--help)
  63         usage
  64         ;;
  65     -*' '* | -*"$LF"* | -*'     '*)
  66         # Ignore diff option that has whitespace for now.
  67         ;;
  68     -*) diff_opts="$diff_opts$1 " ;;
  69     *) break ;;
  70     esac
  71     shift
  72 done
  73
  74 case "$keep_subject$numbered" in
  75 tt)
  76         die '--keep-subject and --numbered are incompatible.' ;;
  77 esac
  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 # Backward compatible argument parsing hack.
  87 #
  88 # Historically, we supported:
  89 # 1. "rev1"             is equivalent to "rev1..HEAD"
  90 # 2. "rev1..rev2"
  91 # 3. "rev1" "rev2       is equivalent to "rev1..rev2"
  92 #
  93 # We want to take a sequence of "rev1..rev2" in general.
  94 # Also, "rev1.." should mean "rev1..HEAD"; git-diff users are
  95 # familiar with that syntax.
  96
  97 case "$#,$1$2" in
  98 1,?*..?*)
  99         # single "rev1..rev2"
 100         ;;
 101 1,?*..)
 102         # single "rev1.." should mean "rev1..HEAD"
 103         set x "$1"HEAD
 104         shift
 105         ;;
 106 1,*)
 107         # single rev1
 108         set x "$1..HEAD"
 109         shift
 110         ;;
 111 2,?*..?*)
 112         # not traditional "rev1" "rev2"
 113         ;;
 114 2,*)
 115         set x "$1..$2"
 116         shift
 117         ;;
 118 esac
 119
 120 # Now we have what we want in $@
 121 for revpair
 122 do
 123         case "$revpair" in
 124         ?*..?*)
 125                 rev1=`expr "$revpair" : '\(.*\)\.\.'`
 126                 rev2=`expr "$revpair" : '.*\.\.\(.*\)'`
 127                 ;;
 128         *)
 129                 rev1="$revpair^"
 130                 rev2="$revpair"
 131                 ;;
 132         esac
 133         git-rev-parse --verify "$rev1^0" >/dev/null 2>&1 ||
 134                 die "Not a valid rev $rev1 ($revpair)"
 135         git-rev-parse --verify "$rev2^0" >/dev/null 2>&1 ||
 136                 die "Not a valid rev $rev2 ($revpair)"
 137         git-cherry -v "$rev1" "$rev2" |
 138         while read sign rev comment
 139         do
 140                 case "$sign" in
 141                 '-')
 142                         echo >&2 "Merged already: $comment"
 143                         ;;
 144                 *)
 145                         echo $rev
 146                         ;;
 147                 esac
 148         done
 149 done >$series
 150
 151 me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
 152
 153 case "$outdir" in
 154 */) ;;
 155 *) outdir="$outdir/" ;;
 156 esac
 157 test -d "$outdir" || mkdir -p "$outdir" || exit
 158
 159 titleScript='
 160         /./d
 161         /^$/n
 162         s/^\[PATCH[^]]*\] *//
 163         s/[^-a-z.A-Z_0-9]/-/g
 164         s/\.\.\.*/\./g
 165         s/\.*$//
 166         s/--*/-/g
 167         s/^-//
 168         s/-$//
 169         s/$/./
 170         p
 171         q
 172 '
 173
 174 whosepatchScript='
 175 /^author /{
 176         s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
 177         q
 178 }'
 179
 180 process_one () {
 181         mailScript='
 182         /./d
 183         /^$/n'
 184         case "$keep_subject" in
 185         t)  ;;
 186         *)
 187             mailScript="$mailScript"'
 188             s|^\[PATCH[^]]*\] *||
 189             s|^|[PATCH'"$num"'] |'
 190             ;;
 191         esac
 192         mailScript="$mailScript"'
 193         s|^|Subject: |'
 194         case "$mbox" in
 195         t)
 196             echo 'From nobody Mon Sep 17 00:00:00 2001' ;# UNIX "From" line
 197             ;;
 198         esac
 199
 200         eval "$(sed -ne "$whosepatchScript" $commsg)"
 201         test "$author,$au" = ",$me" || {
 202                 mailScript="$mailScript"'
 203         a\
 204 From: '"$au"
 205         }
 206         test "$date,$au" = ",$me" || {
 207                 mailScript="$mailScript"'
 208         a\
 209 Date: '"$ad"
 210         }
 211
 212         mailScript="$mailScript"'
 213         a\
 214
 215         : body
 216         p
 217         n
 218         b body'
 219
 220         (cat $commsg ; echo; echo) |
 221         sed -ne "$mailScript" |
 222         git-stripspace
 223
 224         test "$signoff" = "t" && {
 225                 offsigner=`git-var GIT_COMMITTER_IDENT | sed -e 's/>.*/>/'`
 226                 line="Signed-off-by: $offsigner"
 227                 grep -q "^$line\$" $commsg || {
 228                         echo
 229                         echo "$line"
 230                         echo
 231                 }
 232         }
 233         echo
 234         echo '---'
 235         echo
 236         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 237         echo
 238         git-diff-tree -p $diff_opts "$commit"
 239         echo "-- "
 240         echo "@@GIT_VERSION@@"
 241
 242         case "$mbox" in
 243         t)
 244                 echo
 245                 ;;
 246         esac
 247 }
 248
 249 total=`wc -l <$series | tr -dc "[0-9]"`
 250 case "$total,$numbered" in
 251 1,*)
 252         numfmt='' ;;
 253 *,t)
 254         numfmt=`echo "$total" | wc -c`
 255         numfmt=$(($numfmt-1))
 256         numfmt=" %0${numfmt}d/$total"
 257 esac
 258
 259 i=1
 260 while read commit
 261 do
 262     git-cat-file commit "$commit" | git-stripspace >$commsg
 263     title=`sed -ne "$titleScript" <$commsg`
 264     case "$numbered" in
 265     '') num= ;;
 266     *)
 267         num=`printf "$numfmt" $i` ;;
 268     esac
 269
 270     file=`printf '%04d-%stxt' $i "$title"`
 271     if test '' = "$stdout"
 272     then
 273             echo "$file"
 274             process_one >"$outdir$file"
 275             if test t = "$check"
 276             then
 277                 # This is slightly modified from Andrew Morton's Perfect Patch.
 278                 # Lines you introduce should not have trailing whitespace.
 279                 # Also check for an indentation that has SP before a TAB.
 280                 grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 281                 :
 282             fi
 283     else
 284             echo >&2 "$file"
 285             process_one
 286     fi
 287     i=`expr "$i" + 1`
 288 done <$series