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