git-commit-vandalism/git-format-patch-script
Junio C Hamano 44d2eb51b1 [PATCH] git-format-patch-script and mailinfo updates.
- avoid duplicating [PATCH] in the commit message body if the
   original commit has it already (happens for commits done from
   mails via applymbox).

 - check if the commit author is different from the one who is
   running the script, and emit an appropriate "From:" and
   "Date: " lines to the output.

 - with '--date', emit "Date: " line to preserve the original
   author date even for the user's own commit.

 - teach mailinfo to grok not just "From: " but "Date: ".

The patch e-mail output by format-patch starts with the first
line from the original commit message, prefixed with [PATCH],
and optionally a From: line if you are reformatting a patch
obtained from somebody else, a Date: line from the original
commit if (1) --date is specified or (2) for somebody else's
patch, and the rest of the commit message body.

Expected use of this is to move the title line from the commit
to Subject: when sending it via an e-mail, and leave the From:
and the Date: lines as the first lines of your message.

The mailinfo command has been changed to read Date: (in addition
to From: it already understands) and do sensible things when
running applymbox.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-22 16:29:28 -07:00

152 lines
3.2 KiB
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#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
usage () {
echo >&2 "usage: $0"' [-n] [-o dir] [-<diff options>...] upstream [ our-head ]
Prepare each commit with its patch since our-head forked from upstream,
one file per patch, for e-mail submission. Each output file is
numbered sequentially from 1, and uses the first line of the commit
message (massaged for pathname safety) as the filename.
When -o is specified, output files are created in that directory; otherwise in
the current working directory.
When -n is specified, instead of "[PATCH] Subject", the first line is formatted
as "[PATCH N/M] Subject", unless you have only one patch.
'
exit 1
}
diff_opts=
IFS='
'
LF='
'
outdir=./
while case "$#" in 0) break;; esac
do
case "$1" in
-d|--d|--da|--dat|--date)
date=t ;;
-n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
numbered=t ;;
-o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
--output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
--output-direc=*|--output-direct=*|--output-directo=*|\
--output-director=*|--output-directory=*)
outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
-o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
--output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
--output-directo|--output-director|--output-directory)
case "$#" in 1) usage ;; esac; shift
outdir="$1" ;;
-*) diff_opts="$diff_opts$LF$1" ;;
*) break ;;
esac
shift
done
case "$#" in
2) linus="$1" junio="$2" ;;
1) linus="$1" junio=HEAD ;;
*) usage ;;
esac
junio=`git-rev-parse --verify "$junio"`
linus=`git-rev-parse --verify "$linus"`
me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
case "$outdir" in
*/) ;;
*) outdir="$outdir/" ;;
esac
test -d "$outdir" || mkdir -p "$outdir" || exit
tmp=.tmp-series$$
trap 'rm -f $tmp-*' 0 1 2 3 15
series=$tmp-series
commsg=$tmp-commsg
titleScript='
/./d
/^$/n
s/^\[PATCH[^]]*\] *//
s/[^-a-z.A-Z_0-9]/-/g
s/\.\.\.*/\./g
s/\.*$//
s/--*/-/g
s/^-//
s/-$//
s/$/./
p
q
'
whosepatchScript='
/^author /{
s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
q
}'
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
stripCommitHead='/^'"$_x40"' (from '"$_x40"')$/d'
git-rev-list --merge-order "$junio" "^$linus" >$series
total=`wc -l <$series`
i=$total
while read commit
do
git-cat-file commit "$commit" | git-stripspace >$commsg
title=`sed -ne "$titleScript" <$commsg`
case "$numbered" in
'') num= ;;
*)
case $total in
1) num= ;;
*) num=' '`printf "%d/%d" $i $total` ;;
esac
esac
file=`printf '%04d-%stxt' $i "$title"`
i=`expr "$i" - 1`
echo "$file"
{
mailScript='
/./d
/^$/n
s|^\[PATCH[^]]*\] *||
s|^|[PATCH'"$num"'] |'
eval "$(sed -ne "$whosepatchScript" $commsg)"
test "$au" = "$me" || {
mailScript="$mailScript"'
a\
From: '"$au"
}
test "$date,$au" = ",$me" || {
mailScript="$mailScript"'
a\
Date: '"$ad"
}
mailScript="$mailScript"'
: body
p
n
b body'
sed -ne "$mailScript" <$commsg
echo '---'
echo
git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
echo
git-diff-tree -p $diff_opts "$commit" | sed -e "$stripCommitHead"
} >"$outdir$file"
done <$series