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] [--diff-options] [--attach] <his> [<mine>]'
   7 LONG_USAGE='Prepare each commit with its patch since <mine> head forked from
   8 <his> head, one file per patch formatted to resemble UNIX mailbox
   9 format, for e-mail submission or use with git-am.
  10
  11 Each output file is numbered sequentially from 1, and uses the
  12 first line of the commit message (massaged for pathname safety)
  13 as the filename.
  14
  15 When -o is specified, output files are created in <dir>; otherwise
  16 they are created in the current working directory.  This option
  17 is ignored if --stdout is specified.
  18
  19 When -n is specified, instead of "[PATCH] Subject", the first
  20 line is formatted as "[PATCH N/M] Subject", unless you have only
  21 one patch.
  22
  23 When --attach is specified, patches are attached, not inlined.'
  24
  25 . git-sh-setup
  26
  27 # Force diff to run in C locale.
  28 LANG=C LC_ALL=C
  29 export LANG LC_ALL
  30
  31 diff_opts=
  32 LF='
  33 '
  34
  35 outdir=./
  36 while case "$#" in 0) break;; esac
  37 do
  38     case "$1" in
  39     -c|--c|--ch|--che|--chec|--check)
  40     check=t ;;
  41     -a|--a|--au|--aut|--auth|--autho|--author|\
  42     -d|--d|--da|--dat|--date|\
  43     -m|--m|--mb|--mbo|--mbox) # now noop
  44     ;;
  45     --at|--att|--atta|--attac|--attach)
  46     attach=t ;;
  47     -k|--k|--ke|--kee|--keep|--keep-|--keep-s|--keep-su|--keep-sub|\
  48     --keep-subj|--keep-subje|--keep-subjec|--keep-subject)
  49     keep_subject=t ;;
  50     -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
  51     numbered=t ;;
  52     -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
  53     signoff=t ;;
  54     --st|--std|--stdo|--stdou|--stdout)
  55     stdout=t ;;
  56     -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
  57     --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
  58     --output-direc=*|--output-direct=*|--output-directo=*|\
  59     --output-director=*|--output-directory=*)
  60     outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
  61     -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
  62     --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
  63     --output-directo|--output-director|--output-directory)
  64     case "$#" in 1) usage ;; esac; shift
  65     outdir="$1" ;;
  66     -h|--h|--he|--hel|--help)
  67         usage
  68         ;;
  69     -*' '* | -*"$LF"* | -*'     '*)
  70         # Ignore diff option that has whitespace for now.
  71         ;;
  72     -*) diff_opts="$diff_opts$1 " ;;
  73     *) break ;;
  74     esac
  75     shift
  76 done
  77
  78 case "$keep_subject$numbered" in
  79 tt)
  80         die '--keep-subject and --numbered are incompatible.' ;;
  81 esac
  82
  83 tmp=.tmp-series$$
  84 trap 'rm -f $tmp-*' 0 1 2 3 15
  85
  86 series=$tmp-series
  87 commsg=$tmp-commsg
  88 filelist=$tmp-files
  89
  90 # Backward compatible argument parsing hack.
  91 #
  92 # Historically, we supported:
  93 # 1. "rev1"             is equivalent to "rev1..HEAD"
  94 # 2. "rev1..rev2"
  95 # 3. "rev1" "rev2       is equivalent to "rev1..rev2"
  96 #
  97 # We want to take a sequence of "rev1..rev2" in general.
  98 # Also, "rev1.." should mean "rev1..HEAD"; git-diff users are
  99 # familiar with that syntax.
 100
 101 case "$#,$1$2" in
 102 1,?*..?*)
 103         # single "rev1..rev2"
 104         ;;
 105 1,?*..)
 106         # single "rev1.." should mean "rev1..HEAD"
 107         set x "$1"HEAD
 108         shift
 109         ;;
 110 1,*)
 111         # single rev1
 112         set x "$1..HEAD"
 113         shift
 114         ;;
 115 2,?*..?*)
 116         # not traditional "rev1" "rev2"
 117         ;;
 118 2,*)
 119         set x "$1..$2"
 120         shift
 121         ;;
 122 esac
 123
 124 # Now we have what we want in $@
 125 for revpair
 126 do
 127         case "$revpair" in
 128         ?*..?*)
 129                 rev1=`expr "$revpair" : '\(.*\)\.\.'`
 130                 rev2=`expr "$revpair" : '.*\.\.\(.*\)'`
 131                 ;;
 132         *)
 133                 rev1="$revpair^"
 134                 rev2="$revpair"
 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 headers=`git-repo-config --get format.headers`
 157 case "$attach" in
 158 "") ;;
 159 *)
 160         mimemagic="050802040500080604070107"
 161 esac
 162
 163 case "$outdir" in
 164 */) ;;
 165 *) outdir="$outdir/" ;;
 166 esac
 167 test -d "$outdir" || mkdir -p "$outdir" || exit
 168
 169 titleScript='
 170         /./d
 171         /^$/n
 172         s/^\[PATCH[^]]*\] *//
 173         s/[^-a-z.A-Z_0-9]/-/g
 174         s/\.\.\.*/\./g
 175         s/\.*$//
 176         s/--*/-/g
 177         s/^-//
 178         s/-$//
 179         s/$/./
 180         p
 181         q
 182 '
 183
 184 process_one () {
 185         perl -w -e '
 186 my ($keep_subject, $num, $signoff, $headers, $mimemagic, $commsg) = @ARGV;
 187 my ($signoff_pattern, $done_header, $done_subject, $done_separator, $signoff_seen,
 188     $last_was_signoff);
 189
 190 if ($signoff) {
 191         $signoff = "Signed-off-by: " . `git-var GIT_COMMITTER_IDENT`;
 192         $signoff =~ s/>.*/>/;
 193         $signoff_pattern = quotemeta($signoff);
 194 }
 195
 196 my @weekday_names = qw(Sun Mon Tue Wed Thu Fri Sat);
 197 my @month_names = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
 198
 199 sub show_date {
 200     my ($time, $tz) = @_;
 201     my $minutes = abs($tz);
 202     $minutes = int($minutes / 100) * 60 + ($minutes % 100);
 203     if ($tz < 0) {
 204         $minutes = -$minutes;
 205     }
 206     my $t = $time + $minutes * 60;
 207     my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday) = gmtime($t);
 208     return sprintf("%s %s %d %02d:%02d:%02d %d %+05d",
 209                    $weekday_names[$wday],
 210                    $month_names[$mon],
 211                    $mday, $hour, $min, $sec,
 212                    $year+1900, $tz);
 213 }
 214
 215 print "From nobody Mon Sep 17 00:00:00 2001\n";
 216 open FH, "git stripspace <$commsg |" or die "open $commsg pipe";
 217 while (<FH>) {
 218     unless ($done_header) {
 219         if (/^$/) {
 220             $done_header = 1;
 221         }
 222         elsif (/^author (.*>) (.*)$/) {
 223             my ($author_ident, $author_date) = ($1, $2);
 224             my ($utc, $off) = ($author_date =~ /^(\d+) ([-+]?\d+)$/);
 225             $author_date = show_date($utc, $off);
 226
 227             print "From: $author_ident\n";
 228             print "Date: $author_date\n";
 229         }
 230         next;
 231     }
 232     unless ($done_subject) {
 233         unless ($keep_subject) {
 234             s/^\[PATCH[^]]*\]\s*//;
 235             s/^/[PATCH$num] /;
 236         }
 237         if ($headers) {
 238             print "$headers\n";
 239         }
 240         print "Subject: $_";
 241         if ($mimemagic) {
 242             print "MIME-Version: 1.0\n";
 243             print "Content-Type: multipart/mixed;\n";
 244             print " boundary=\"------------$mimemagic\"\n";
 245             print "\n";
 246             print "This is a multi-part message in MIME format.\n";
 247             print "--------------$mimemagic\n";
 248             print "Content-Type: text/plain; charset=UTF-8; format=fixed\n";
 249             print "Content-Transfer-Encoding: 8bit\n";
 250         }
 251         $done_subject = 1;
 252         next;
 253     }
 254     unless ($done_separator) {
 255         print "\n";
 256         $done_separator = 1;
 257         next if (/^$/);
 258     }
 259
 260     $last_was_signoff = 0;
 261     if (/Signed-off-by:/i) {
 262         if ($signoff ne "" && /Signed-off-by:\s*$signoff_pattern$/i) {
 263             $signoff_seen = 1;
 264         }
 265     }
 266     print $_;
 267 }
 268 if (!$signoff_seen && $signoff ne "") {
 269     if (!$last_was_signoff) {
 270         print "\n";
 271     }
 272     print "$signoff\n";
 273 }
 274 print "\n---\n\n";
 275 close FH or die "close $commsg pipe";
 276 ' "$keep_subject" "$num" "$signoff" "$headers" "$mimemagic" $commsg
 277
 278         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 279         echo
 280         case "$mimemagic" in
 281         '');;
 282         *)
 283                 echo "--------------$mimemagic"
 284                 echo "Content-Type: text/x-patch;"
 285                 echo " name=\"$commit.diff\""
 286                 echo "Content-Transfer-Encoding: 8bit"
 287                 echo "Content-Disposition: inline;"
 288                 echo " filename=\"$commit.diff\""
 289                 echo
 290         esac
 291         git-diff-tree -p $diff_opts "$commit"
 292         case "$mimemagic" in
 293         '')
 294                 echo "-- "
 295                 echo "@@GIT_VERSION@@"
 296                 ;;
 297         *)
 298                 echo
 299                 echo "--------------$mimemagic--"
 300                 echo
 301                 ;;
 302         esac
 303         echo
 304 }
 305
 306 total=`wc -l <$series | tr -dc "[0-9]"`
 307 case "$total,$numbered" in
 308 1,*)
 309         numfmt='' ;;
 310 *,t)
 311         numfmt=`echo "$total" | wc -c`
 312         numfmt=$(($numfmt-1))
 313         numfmt=" %0${numfmt}d/$total"
 314 esac
 315
 316 i=1
 317 while read commit
 318 do
 319     git-cat-file commit "$commit" | git-stripspace >$commsg
 320     title=`sed -ne "$titleScript" <$commsg`
 321     case "$numbered" in
 322     '') num= ;;
 323     *)
 324         num=`printf "$numfmt" $i` ;;
 325     esac
 326
 327     file=`printf '%04d-%stxt' $i "$title"`
 328     if test '' = "$stdout"
 329     then
 330             echo "$file"
 331             process_one >"$outdir$file"
 332             if test t = "$check"
 333             then
 334                 # This is slightly modified from Andrew Morton's Perfect Patch.
 335                 # Lines you introduce should not have trailing whitespace.
 336                 # Also check for an indentation that has SP before a TAB.
 337                 grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 338                 :
 339             fi
 340     else
 341             echo >&2 "$file"
 342             process_one
 343     fi
 344     i=`expr "$i" + 1`
 345 done <$series