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: $0"' [-n] [-o dir | --stdout] [--keep-subject] [--mbox]
  10     [--check] [--signoff] [-<diff options>...]
  11     [--help]
  12     ( from..to ... | upstream [ our-head ] )
  13
  14 Prepare each commit with its patch since our-head forked from upstream,
  15 one file per patch, for e-mail submission.  Each output file is
  16 numbered sequentially from 1, and uses the first line of the commit
  17 message (massaged for pathname safety) as the filename.
  18
  19 When -o is specified, output files are created in that directory; otherwise in
  20 the current working directory.
  21
  22 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
  23 as "[PATCH N/M] Subject", unless you have only one patch.
  24
  25 When --mbox is specified, the output is formatted to resemble
  26 UNIX mailbox format, and can be concatenated together for processing
  27 with applymbox.
  28 '
  29     exit 1
  30 }
  31
  32 diff_opts=
  33 LF='
  34 '
  35
  36 outdir=./
  37 while case "$#" in 0) break;; esac
  38 do
  39     case "$1" in
  40     -a|--a|--au|--aut|--auth|--autho|--author)
  41     author=t ;;
  42     -c|--c|--ch|--che|--chec|--check)
  43     check=t ;;
  44     -d|--d|--da|--dat|--date)
  45     date=t ;;
  46     -m|--m|--mb|--mbo|--mbox)
  47     date=t author=t mbox=t ;;
  48     -k|--k|--ke|--kee|--keep|--keep-|--keep-s|--keep-su|--keep-sub|\
  49     --keep-subj|--keep-subje|--keep-subjec|--keep-subject)
  50     keep_subject=t ;;
  51     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  52     numbered=t ;;
  53     -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
  54     signoff=t ;;
  55     --st|--std|--stdo|--stdou|--stdout)
  56     stdout=t mbox=t date=t author=t ;;
  57     -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
  58     --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
  59     --output-direc=*|--output-direct=*|--output-directo=*|\
  60     --output-director=*|--output-directory=*)
  61     outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  62     -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
  63     --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
  64     --output-directo|--output-director|--output-directory)
  65     case "$#" in 1) usage ;; esac; shift
  66     outdir="$1" ;;
  67     -h|--h|--he|--hel|--help)
  68         usage
  69         ;;
  70     -*' '* | -*"$LF"* | -*'     '*)
  71         # Ignore diff option that has whitespace for now.
  72         ;;
  73     -*) diff_opts="$diff_opts$1 " ;;
  74     *) break ;;
  75     esac
  76     shift
  77 done
  78
  79 case "$keep_subject$numbered" in
  80 tt)
  81         die '--keep-subject and --numbered are incompatible.' ;;
  82 esac
  83
  84 tmp=.tmp-series$$
  85 trap 'rm -f $tmp-*' 0 1 2 3 15
  86
  87 series=$tmp-series
  88 commsg=$tmp-commsg
  89 filelist=$tmp-files
  90
  91 # Backward compatible argument parsing hack.
  92 #
  93 # Historically, we supported:
  94 # 1. "rev1"             is equivalent to "rev1..HEAD"
  95 # 2. "rev1..rev2"
  96 # 3. "rev1" "rev2       is equivalent to "rev1..rev2"
  97 #
  98 # We want to take a sequence of "rev1..rev2" in general.
  99 # Also, "rev1.." should mean "rev1..HEAD"; git-diff users are
 100 # familiar with that syntax.
 101
 102 case "$#,$1" in
 103 1,?*..?*)
 104         # single "rev1..rev2"
 105         ;;
 106 1,?*..)
 107         # single "rev1.." should mean "rev1..HEAD"
 108         set x "$1"HEAD
 109         shift
 110         ;;
 111 1,*)
 112         # single rev1
 113         set x "$1..HEAD"
 114         shift
 115         ;;
 116 2,?*..?*)
 117         # not traditional "rev1" "rev2"
 118         ;;
 119 2,*)
 120         set x "$1..$2"
 121         shift
 122         ;;
 123 esac
 124
 125 # Now we have what we want in $@
 126 for revpair
 127 do
 128         case "$revpair" in
 129         ?*..?*)
 130                 rev1=`expr "$revpair" : '\(.*\)\.\.'`
 131                 rev2=`expr "$revpair" : '.*\.\.\(.*\)'`
 132                 ;;
 133         *)
 134                 usage
 135                 ;;
 136         esac
 137         git-rev-parse --verify "$rev1^0" >/dev/null 2>&1 ||
 138                 die "Not a valid rev $rev1 ($revpair)"
 139         git-rev-parse --verify "$rev2^0" >/dev/null 2>&1 ||
 140                 die "Not a valid rev $rev2 ($revpair)"
 141         git-cherry -v "$rev1" "$rev2" |
 142         while read sign rev comment
 143         do
 144                 case "$sign" in
 145                 '-')
 146                         echo >&2 "Merged already: $comment"
 147                         ;;
 148                 *)
 149                         echo $rev
 150                         ;;
 151                 esac
 152         done
 153 done >$series
 154
 155 me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
 156
 157 case "$outdir" in
 158 */) ;;
 159 *) outdir="$outdir/" ;;
 160 esac
 161 test -d "$outdir" || mkdir -p "$outdir" || exit
 162
 163 titleScript='
 164         /./d
 165         /^$/n
 166         s/^\[PATCH[^]]*\] *//
 167         s/[^-a-z.A-Z_0-9]/-/g
 168         s/\.\.\.*/\./g
 169         s/\.*$//
 170         s/--*/-/g
 171         s/^-//
 172         s/-$//
 173         s/$/./
 174         p
 175         q
 176 '
 177
 178 whosepatchScript='
 179 /^author /{
 180         s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
 181         q
 182 }'
 183
 184 process_one () {
 185         mailScript='
 186         /./d
 187         /^$/n'
 188         case "$keep_subject" in
 189         t)  ;;
 190         *)
 191             mailScript="$mailScript"'
 192             s|^\[PATCH[^]]*\] *||
 193             s|^|[PATCH'"$num"'] |'
 194             ;;
 195         esac
 196         mailScript="$mailScript"'
 197         s|^|Subject: |'
 198         case "$mbox" in
 199         t)
 200             echo 'From nobody Mon Sep 17 00:00:00 2001' ;# UNIX "From" line
 201             ;;
 202         esac
 203
 204         eval "$(LANG=C LC_ALL=C sed -ne "$whosepatchScript" $commsg)"
 205         test "$author,$au" = ",$me" || {
 206                 mailScript="$mailScript"'
 207         a\
 208 From: '"$au"
 209         }
 210         test "$date,$au" = ",$me" || {
 211                 mailScript="$mailScript"'
 212         a\
 213 Date: '"$ad"
 214         }
 215
 216         mailScript="$mailScript"'
 217         : body
 218         p
 219         n
 220         b body'
 221
 222         (cat $commsg ; echo; echo) |
 223         sed -ne "$mailScript" |
 224         git-stripspace
 225
 226         test "$signoff" = "t" && {
 227                 offsigner=`git-var GIT_COMMITTER_IDENT | sed -e 's/>.*/>/'`
 228                 line="Signed-off-by: $offsigner"
 229                 grep -q "^$line\$" $commsg || {
 230                         echo
 231                         echo "$line"
 232                         echo
 233                 }
 234         }
 235         echo
 236         echo '---'
 237         echo
 238         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 239         echo
 240         git-cat-file commit "$commit^" | sed -e 's/^tree /applies-to: /' -e q
 241         git-diff-tree -p $diff_opts "$commit"
 242         echo "---"
 243         echo "@@GIT_VERSION@@"
 244
 245         case "$mbox" in
 246         t)
 247                 echo
 248                 ;;
 249         esac
 250 }
 251
 252 total=`wc -l <$series | tr -dc "[0-9]"`
 253 i=1
 254 while read commit
 255 do
 256     git-cat-file commit "$commit" | git-stripspace >$commsg
 257     title=`sed -ne "$titleScript" <$commsg`
 258     case "$numbered" in
 259     '') num= ;;
 260     *)
 261         case $total in
 262         1) num= ;;
 263         *) num=' '`printf "%d/%d" $i $total` ;;
 264         esac
 265     esac
 266
 267     file=`printf '%04d-%stxt' $i "$title"`
 268     if test '' = "$stdout"
 269     then
 270             echo "* $file"
 271             process_one >"$outdir$file"
 272             if test t = "$check"
 273             then
 274                 # This is slightly modified from Andrew Morton's Perfect Patch.
 275                 # Lines you introduce should not have trailing whitespace.
 276                 # Also check for an indentation that has SP before a TAB.
 277                 grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 278                 :
 279             fi
 280     else
 281             echo >&2 "* $file"
 282             process_one
 283     fi
 284     i=`expr "$i" + 1`
 285 done <$series