1 #!/bin/sh
2 #
3 # Copyright (c) 2005 Junio C Hamano
4 #
6 usage () {
7 echo >&2 "usage: $0"' [-n] [-o dir] [-<diff options>...] upstream [ our-head ]
9 Prepare each commit with its patch since our-head forked from upstream,
10 one file per patch, for e-mail submission. Each output file is
11 numbered sequentially from 1, and uses the first line of the commit
12 message (massaged for pathname safety) as the filename.
14 When -o is specified, output files are created in that directory; otherwise in
15 the current working directory.
17 When -n is specified, instead of "[PATCH] Subject", the first line is formatted
18 as "[PATCH N/M] Subject", unless you have only one patch.
19 '
20 exit 1
21 }
23 diff_opts=
24 IFS='
25 '
26 LF='
27 '
28 outdir=./
30 while case "$#" in 0) break;; esac
31 do
32 case "$1" in
33 -d|--d|--da|--dat|--date)
34 date=t ;;
35 -n|--n|--nu|--num|--numb|--numbe|--number|--numbere|--numbered)
36 numbered=t ;;
37 -o=*|--o=*|--ou=*|--out=*|--outp=*|--outpu=*|--output=*|--output-=*|\
38 --output-d=*|--output-di=*|--output-dir=*|--output-dire=*|\
39 --output-direc=*|--output-direct=*|--output-directo=*|\
40 --output-director=*|--output-directory=*)
41 outdir=`expr "$1" : '-[^=]*=\(.*\)'` ;;
42 -o|--o|--ou|--out|--outp|--outpu|--output|--output-|--output-d|\
43 --output-di|--output-dir|--output-dire|--output-direc|--output-direct|\
44 --output-directo|--output-director|--output-directory)
45 case "$#" in 1) usage ;; esac; shift
46 outdir="$1" ;;
47 -*) diff_opts="$diff_opts$LF$1" ;;
48 *) break ;;
49 esac
50 shift
51 done
53 case "$#" in
54 2) linus="$1" junio="$2" ;;
55 1) linus="$1" junio=HEAD ;;
56 *) usage ;;
57 esac
58 junio=`git-rev-parse --verify "$junio"`
59 linus=`git-rev-parse --verify "$linus"`
61 me=`git-var GIT_AUTHOR_IDENT | sed -e 's/>.*/>/'`
63 case "$outdir" in
64 */) ;;
65 *) outdir="$outdir/" ;;
66 esac
67 test -d "$outdir" || mkdir -p "$outdir" || exit
69 tmp=.tmp-series$$
70 trap 'rm -f $tmp-*' 0 1 2 3 15
72 series=$tmp-series
73 commsg=$tmp-commsg
75 titleScript='
76 /./d
77 /^$/n
78 s/^\[PATCH[^]]*\] *//
79 s/[^-a-z.A-Z_0-9]/-/g
80 s/\.\.\.*/\./g
81 s/\.*$//
82 s/--*/-/g
83 s/^-//
84 s/-$//
85 s/$/./
86 p
87 q
88 '
90 whosepatchScript='
91 /^author /{
92 s/author \(.*>\) \(.*\)$/au='\''\1'\'' ad='\''\2'\''/p
93 q
94 }'
96 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
97 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
98 stripCommitHead='/^'"$_x40"' (from '"$_x40"')$/d'
100 git-rev-list --merge-order "$junio" "^$linus" >$series
101 total=`wc -l <$series`
102 i=$total
103 while read commit
104 do
105 git-cat-file commit "$commit" | git-stripspace >$commsg
106 title=`sed -ne "$titleScript" <$commsg`
107 case "$numbered" in
108 '') num= ;;
109 *)
110 case $total in
111 1) num= ;;
112 *) num=' '`printf "%d/%d" $i $total` ;;
113 esac
114 esac
116 file=`printf '%04d-%stxt' $i "$title"`
117 i=`expr "$i" - 1`
118 echo "$file"
119 {
120 mailScript='
121 /./d
122 /^$/n
123 s|^\[PATCH[^]]*\] *||
124 s|^|[PATCH'"$num"'] |'
126 eval "$(sed -ne "$whosepatchScript" $commsg)"
127 test "$au" = "$me" || {
128 mailScript="$mailScript"'
129 a\
130 From: '"$au"
131 }
132 test "$date,$au" = ",$me" || {
133 mailScript="$mailScript"'
134 a\
135 Date: '"$ad"
136 }
138 mailScript="$mailScript"'
139 : body
140 p
141 n
142 b body'
144 sed -ne "$mailScript" <$commsg
145 echo '---'
146 echo
147 git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
148 echo
149 git-diff-tree -p $diff_opts "$commit" | sed -e "$stripCommitHead"
150 } >"$outdir$file"
151 done <$series