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] <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 . git-sh-setup
  24
  25 # Force diff to run in C locale.
  26 LANG=C LC_ALL=C
  27 export LANG LC_ALL
  28
  29 diff_opts=
  30 LF='
  31 '
  32
  33 outdir=./
  34 while case "$#" in 0) break;; esac
  35 do
  36     case "$1" in
  37     -c|--c|--ch|--che|--chec|--check)
  38     check=t ;;
  39     -a|--a|--au|--aut|--auth|--autho|--author|\
  40     -d|--d|--da|--dat|--date|\
  41     -m|--m|--mb|--mbo|--mbox) # now noop
  42     ;;
  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 ;;
  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/$/./
 170         p
 171         q
 172 '
 173
 174 process_one () {
 175         perl -w -e '
 176 my ($keep_subject, $num, $signoff, $commsg) = @ARGV;
 177 my ($signoff_pattern, $done_header, $done_subject, $signoff_seen,
 178     $last_was_signoff);
 179
 180 if ($signoff) {
 181         $signoff = "Signed-off-by: " . `git-var GIT_COMMITTER_IDENT`;
 182         $signoff =~ s/>.*/>/;
 183         $signoff_pattern = quotemeta($signoff);
 184 }
 185
 186 my @weekday_names = qw(Sun Mon Tue Wed Thu Fri Sat);
 187 my @month_names = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
 188
 189 sub show_date {
 190     my ($time, $tz) = @_;
 191     my $minutes = abs($tz);
 192     $minutes = int($minutes / 100) * 60 + ($minutes % 100);
 193     if ($tz < 0) {
 194         $minutes = -$minutes;
 195     }
 196     my $t = $time + $minutes * 60;
 197     my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday) = gmtime($t);
 198     return sprintf("%s %s %d %02d:%02d:%02d %d %+05d",
 199                    $weekday_names[$wday],
 200                    $month_names[$mon],
 201                    $mday, $hour, $min, $sec,
 202                    $year+1900, $tz);
 203 }
 204
 205 print "From nobody Mon Sep 17 00:00:00 2001\n";
 206 open FH, "git stripspace <$commsg |" or die "open $commsg pipe";
 207 while (<FH>) {
 208     unless ($done_header) {
 209         if (/^$/) {
 210             $done_header = 1;
 211         }
 212         elsif (/^author (.*>) (.*)$/) {
 213             my ($author_ident, $author_date) = ($1, $2);
 214             my ($utc, $off) = ($author_date =~ /^(\d+) ([-+]?\d+)$/);
 215             $author_date = show_date($utc, $off);
 216
 217             print "From: $author_ident\n";
 218             print "Date: $author_date\n";
 219         }
 220         next;
 221     }
 222     unless ($done_subject) {
 223         unless ($keep_subject) {
 224             s/^\[PATCH[^]]*\]\s*//;
 225             s/^/[PATCH$num] /;
 226         }
 227         print "Subject: $_";
 228         $done_subject = 1;
 229         next;
 230     }
 231
 232     $last_was_signoff = 0;
 233     if (/Signed-off-by:/i) {
 234         if ($signoff ne "" && /Signed-off-by:\s*$signoff_pattern$/i) {
 235             $signoff_seen = 1;
 236         }
 237     }
 238     print $_;
 239 }
 240 if (!$signoff_seen && $signoff ne "") {
 241     if (!$last_was_signoff) {
 242         print "\n";
 243     }
 244     print "$signoff\n";
 245 }
 246 print "\n---\n\n";
 247 close FH or die "close $commsg pipe";
 248 ' "$keep_subject" "$num" "$signoff" $commsg
 249
 250         git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
 251         echo
 252         git-diff-tree -p $diff_opts "$commit"
 253         echo "-- "
 254         echo "@@GIT_VERSION@@"
 255
 256         echo
 257 }
 258
 259 total=`wc -l <$series | tr -dc "[0-9]"`
 260 case "$total,$numbered" in
 261 1,*)
 262         numfmt='' ;;
 263 *,t)
 264         numfmt=`echo "$total" | wc -c`
 265         numfmt=$(($numfmt-1))
 266         numfmt=" %0${numfmt}d/$total"
 267 esac
 268
 269 i=1
 270 while read commit
 271 do
 272     git-cat-file commit "$commit" | git-stripspace >$commsg
 273     title=`sed -ne "$titleScript" <$commsg`
 274     case "$numbered" in
 275     '') num= ;;
 276     *)
 277         num=`printf "$numfmt" $i` ;;
 278     esac
 279
 280     file=`printf '%04d-%stxt' $i "$title"`
 281     if test '' = "$stdout"
 282     then
 283             echo "$file"
 284             process_one >"$outdir$file"
 285             if test t = "$check"
 286             then
 287                 # This is slightly modified from Andrew Morton's Perfect Patch.
 288                 # Lines you introduce should not have trailing whitespace.
 289                 # Also check for an indentation that has SP before a TAB.
 290                 grep -n '^+\([  ]*      .*\|.*[         ]\)$' "$outdir$file"
 291                 :
 292             fi
 293     else
 294             echo >&2 "$file"
 295             process_one
 296     fi
 297     i=`expr "$i" + 1`
 298 done <$series