1 #!/usr/bin/env bash !! 1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0 <<
3 # Manipulate options in a .config file from th 2 # Manipulate options in a .config file from the command line
4 3
5 myname=${0##*/} <<
6 <<
7 # If no prefix forced, use the default CONFIG_ <<
8 CONFIG_="${CONFIG_-CONFIG_}" <<
9 <<
10 # We use an uncommon delimiter for sed substit <<
11 SED_DELIM=$(echo -en "\001") <<
12 <<
13 usage() { 4 usage() {
14 cat >&2 <<EOL 5 cat >&2 <<EOL
15 Manipulate options in a .config file from the 6 Manipulate options in a .config file from the command line.
16 Usage: 7 Usage:
17 $myname options command ... !! 8 config options command ...
18 commands: 9 commands:
19 --enable|-e option Enable option 10 --enable|-e option Enable option
20 --disable|-d option Disable option 11 --disable|-d option Disable option
21 --module|-m option Turn option into 12 --module|-m option Turn option into a module
22 --set-str option string !! 13 --set-str option value
23 Set option to "st !! 14 Set option to "value"
24 --set-val option value <<
25 Set option to val <<
26 --undefine|-u option Undefine option <<
27 --state|-s option Print state of op 15 --state|-s option Print state of option (n,y,m,undef)
28 16
29 --enable-after|-E beforeopt option 17 --enable-after|-E beforeopt option
30 Enable option dir 18 Enable option directly after other option
31 --disable-after|-D beforeopt option 19 --disable-after|-D beforeopt option
32 Disable option di 20 Disable option directly after other option
33 --module-after|-M beforeopt option 21 --module-after|-M beforeopt option
34 Turn option into 22 Turn option into module directly after other option
35 23
36 commands can be repeated multiple time 24 commands can be repeated multiple times
37 25
38 options: 26 options:
39 --file config-file .config file to c !! 27 --file .config file to change (default .config)
40 --keep-case|-k Keep next symbols <<
41 28
42 $myname doesn't check the validity of the .con !! 29 config doesn't check the validity of the .config file. This is done at next
43 make time. !! 30 make time.
44 <<
45 By default, $myname will upper-case the given <<
46 the case of all following symbols unchanged. <<
47 <<
48 $myname uses 'CONFIG_' as the default symbol p <<
49 variable CONFIG_ to the prefix to use. Eg.: CO <<
50 EOL 31 EOL
51 exit 1 32 exit 1
52 } 33 }
53 34
54 checkarg() { 35 checkarg() {
55 ARG="$1" 36 ARG="$1"
56 if [ "$ARG" = "" ] ; then 37 if [ "$ARG" = "" ] ; then
57 usage 38 usage
58 fi 39 fi
59 case "$ARG" in 40 case "$ARG" in
60 ${CONFIG_}*) !! 41 CONFIG_*)
61 ARG="${ARG/${CONFIG_}/}" !! 42 ARG="${ARG/CONFIG_/}"
62 ;; 43 ;;
63 esac 44 esac
64 if [ "$MUNGE_CASE" = "yes" ] ; then !! 45 ARG="`echo $ARG | tr a-z A-Z`"
65 ARG="`echo $ARG | tr a-z A-Z`" <<
66 fi <<
67 } <<
68 <<
69 txt_append() { <<
70 local anchor="$1" <<
71 local insert="$2" <<
72 local infile="$3" <<
73 local tmpfile="$infile.swp" <<
74 <<
75 # sed append cmd: 'a\' + newline + tex <<
76 cmd="$(printf "a\\%b$insert" "\n")" <<
77 <<
78 sed -e "/$anchor/$cmd" "$infile" >"$tm <<
79 # replace original file with the edite <<
80 mv "$tmpfile" "$infile" <<
81 } <<
82 <<
83 txt_subst() { <<
84 local before="$1" <<
85 local after="$2" <<
86 local infile="$3" <<
87 local tmpfile="$infile.swp" <<
88 <<
89 sed -e "s$SED_DELIM$before$SED_DELIM$a <<
90 # replace original file with the edite <<
91 mv "$tmpfile" "$infile" <<
92 } <<
93 <<
94 txt_delete() { <<
95 local text="$1" <<
96 local infile="$2" <<
97 local tmpfile="$infile.swp" <<
98 <<
99 sed -e "/$text/d" "$infile" >"$tmpfile <<
100 # replace original file with the edite <<
101 mv "$tmpfile" "$infile" <<
102 } 46 }
103 47
104 set_var() { 48 set_var() {
105 local name=$1 new=$2 before=$3 49 local name=$1 new=$2 before=$3
106 50
107 name_re="^($name=|# $name is not set)" 51 name_re="^($name=|# $name is not set)"
108 before_re="^($before=|# $before is not 52 before_re="^($before=|# $before is not set)"
109 if test -n "$before" && grep -Eq "$bef 53 if test -n "$before" && grep -Eq "$before_re" "$FN"; then
110 txt_append "^$before=" "$new" !! 54 sed -ri "/$before_re/a $new" "$FN"
111 txt_append "^# $before is not <<
112 elif grep -Eq "$name_re" "$FN"; then 55 elif grep -Eq "$name_re" "$FN"; then
113 txt_subst "^$name=.*" "$new" " !! 56 sed -ri "s:$name_re.*:$new:" "$FN"
114 txt_subst "^# $name is not set <<
115 else 57 else
116 echo "$new" >>"$FN" 58 echo "$new" >>"$FN"
117 fi 59 fi
118 } 60 }
119 61
120 undef_var() { <<
121 local name=$1 <<
122 <<
123 txt_delete "^$name=" "$FN" <<
124 txt_delete "^# $name is not set" "$FN" <<
125 } <<
126 <<
127 if [ "$1" = "--file" ]; then 62 if [ "$1" = "--file" ]; then
128 FN="$2" 63 FN="$2"
129 if [ "$FN" = "" ] ; then 64 if [ "$FN" = "" ] ; then
130 usage 65 usage
131 fi 66 fi
132 shift 2 67 shift 2
133 else 68 else
134 FN=.config 69 FN=.config
135 fi 70 fi
136 71
137 if [ "$1" = "" ] ; then 72 if [ "$1" = "" ] ; then
138 usage 73 usage
139 fi 74 fi
140 75
141 MUNGE_CASE=yes <<
142 while [ "$1" != "" ] ; do 76 while [ "$1" != "" ] ; do
143 CMD="$1" 77 CMD="$1"
144 shift 78 shift
145 case "$CMD" in 79 case "$CMD" in
146 --keep-case|-k) <<
147 MUNGE_CASE=no <<
148 continue <<
149 ;; <<
150 --refresh) 80 --refresh)
151 ;; 81 ;;
152 --*-after|-E|-D|-M) !! 82 --*-after)
153 checkarg "$1" 83 checkarg "$1"
154 A=$ARG 84 A=$ARG
155 checkarg "$2" 85 checkarg "$2"
156 B=$ARG 86 B=$ARG
157 shift 2 87 shift 2
158 ;; 88 ;;
159 -*) !! 89 --*)
160 checkarg "$1" 90 checkarg "$1"
161 shift 91 shift
162 ;; 92 ;;
163 esac 93 esac
164 case "$CMD" in 94 case "$CMD" in
165 --enable|-e) 95 --enable|-e)
166 set_var "${CONFIG_}$ARG" "${CO !! 96 set_var "CONFIG_$ARG" "CONFIG_$ARG=y"
167 ;; 97 ;;
168 98
169 --disable|-d) 99 --disable|-d)
170 set_var "${CONFIG_}$ARG" "# ${ !! 100 set_var "CONFIG_$ARG" "# CONFIG_$ARG is not set"
171 ;; 101 ;;
172 102
173 --module|-m) 103 --module|-m)
174 set_var "${CONFIG_}$ARG" "${CO !! 104 set_var "CONFIG_$ARG" "CONFIG_$ARG=m"
175 ;; 105 ;;
176 106
177 --set-str) 107 --set-str)
178 # sed swallows one level of es !! 108 set_var "CONFIG_$ARG" "CONFIG_$ARG=\"$1\""
179 set_var "${CONFIG_}$ARG" "${CO <<
180 shift 109 shift
181 ;; 110 ;;
182 111
183 --set-val) <<
184 set_var "${CONFIG_}$ARG" "${CO <<
185 shift <<
186 ;; <<
187 --undefine|-u) <<
188 undef_var "${CONFIG_}$ARG" <<
189 ;; <<
190 <<
191 --state|-s) 112 --state|-s)
192 if grep -q "# ${CONFIG_}$ARG i !! 113 if grep -q "# CONFIG_$ARG is not set" $FN ; then
193 echo n 114 echo n
194 else 115 else
195 V="$(grep "^${CONFIG_} !! 116 V="$(grep "^CONFIG_$ARG=" $FN)"
196 if [ $? != 0 ] ; then 117 if [ $? != 0 ] ; then
197 echo undef 118 echo undef
198 else 119 else
199 V="${V/#${CONF !! 120 V="${V/CONFIG_$ARG=/}"
200 V="${V/#\"/}" !! 121 V="${V/\"/}"
201 V="${V/%\"/}" !! 122 echo "$V"
202 V="${V//\\\"/\ <<
203 echo "${V}" <<
204 fi 123 fi
205 fi 124 fi
206 ;; 125 ;;
207 126
208 --enable-after|-E) 127 --enable-after|-E)
209 set_var "${CONFIG_}$B" "${CONF !! 128 set_var "CONFIG_$B" "CONFIG_$B=y" "CONFIG_$A"
210 ;; 129 ;;
211 130
212 --disable-after|-D) 131 --disable-after|-D)
213 set_var "${CONFIG_}$B" "# ${CO !! 132 set_var "CONFIG_$B" "# CONFIG_$B is not set" "CONFIG_$A"
214 ;; 133 ;;
215 134
216 --module-after|-M) 135 --module-after|-M)
217 set_var "${CONFIG_}$B" "${CONF !! 136 set_var "CONFIG_$B" "CONFIG_$B=m" "CONFIG_$A"
218 ;; 137 ;;
219 138
220 # undocumented because it ignores --fi 139 # undocumented because it ignores --file (fixme)
221 --refresh) 140 --refresh)
222 yes "" | make oldconfig 141 yes "" | make oldconfig
223 ;; 142 ;;
224 143
225 *) 144 *)
226 echo "bad command: $CMD" >&2 <<
227 usage 145 usage
228 ;; 146 ;;
229 esac 147 esac
230 done 148 done
>> 149
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