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