Commit | Line | Data |
---|---|---|
8e54701e AK |
1 | #!/bin/bash |
2 | # Manipulate options in a .config file from the command line | |
3 | ||
f5ef2f7b YM |
4 | # If no prefix forced, use the default CONFIG_ |
5 | CONFIG_="${CONFIG_-CONFIG_}" | |
6 | ||
8e54701e AK |
7 | usage() { |
8 | cat >&2 <<EOL | |
9 | Manipulate options in a .config file from the command line. | |
10 | Usage: | |
11 | config options command ... | |
12 | commands: | |
13 | --enable|-e option Enable option | |
14 | --disable|-d option Disable option | |
1f990cf9 | 15 | --module|-m option Turn option into a module |
f0a6332c JA |
16 | --set-str option string |
17 | Set option to "string" | |
18 | --set-val option value | |
19 | Set option to value | |
1f990cf9 | 20 | --state|-s option Print state of option (n,y,m,undef) |
8e54701e AK |
21 | |
22 | --enable-after|-E beforeopt option | |
23 | Enable option directly after other option | |
24 | --disable-after|-D beforeopt option | |
25 | Disable option directly after other option | |
26 | --module-after|-M beforeopt option | |
27 | Turn option into module directly after other option | |
28 | ||
29 | commands can be repeated multiple times | |
30 | ||
31 | options: | |
4edc7e32 YM |
32 | --file config-file .config file to change (default .config) |
33 | --keep-case|-k Keep next symbols' case (dont' upper-case it) | |
8e54701e AK |
34 | |
35 | config doesn't check the validity of the .config file. This is done at next | |
4edc7e32 YM |
36 | make time. |
37 | ||
38 | By default, config will upper-case the given symbol. Use --keep-case to keep | |
39 | the case of all following symbols unchanged. | |
f5ef2f7b YM |
40 | |
41 | config uses 'CONFIG_' as the default symbol prefix. Set the environment | |
42 | variable CONFIG_ to the prefix to use. Eg.: CONFIG_="FOO_" config ... | |
8e54701e AK |
43 | EOL |
44 | exit 1 | |
45 | } | |
46 | ||
47 | checkarg() { | |
48 | ARG="$1" | |
49 | if [ "$ARG" = "" ] ; then | |
50 | usage | |
51 | fi | |
52 | case "$ARG" in | |
f5ef2f7b YM |
53 | ${CONFIG_}*) |
54 | ARG="${ARG/${CONFIG_}/}" | |
8e54701e AK |
55 | ;; |
56 | esac | |
4edc7e32 YM |
57 | if [ "$MUNGE_CASE" = "yes" ] ; then |
58 | ARG="`echo $ARG | tr a-z A-Z`" | |
59 | fi | |
8e54701e AK |
60 | } |
61 | ||
56643222 MM |
62 | set_var() { |
63 | local name=$1 new=$2 before=$3 | |
64 | ||
65 | name_re="^($name=|# $name is not set)" | |
66 | before_re="^($before=|# $before is not set)" | |
67 | if test -n "$before" && grep -Eq "$before_re" "$FN"; then | |
68 | sed -ri "/$before_re/a $new" "$FN" | |
69 | elif grep -Eq "$name_re" "$FN"; then | |
70 | sed -ri "s:$name_re.*:$new:" "$FN" | |
71 | else | |
72 | echo "$new" >>"$FN" | |
73 | fi | |
8e54701e AK |
74 | } |
75 | ||
76 | if [ "$1" = "--file" ]; then | |
77 | FN="$2" | |
78 | if [ "$FN" = "" ] ; then | |
79 | usage | |
80 | fi | |
47312d2c | 81 | shift 2 |
8e54701e AK |
82 | else |
83 | FN=.config | |
84 | fi | |
85 | ||
2302e873 AK |
86 | if [ "$1" = "" ] ; then |
87 | usage | |
88 | fi | |
89 | ||
4edc7e32 | 90 | MUNGE_CASE=yes |
8e54701e AK |
91 | while [ "$1" != "" ] ; do |
92 | CMD="$1" | |
93 | shift | |
94 | case "$CMD" in | |
4edc7e32 YM |
95 | --keep-case|-k) |
96 | MUNGE_CASE=no | |
97 | shift | |
98 | continue | |
99 | ;; | |
47312d2c MM |
100 | --refresh) |
101 | ;; | |
102 | --*-after) | |
103 | checkarg "$1" | |
104 | A=$ARG | |
105 | checkarg "$2" | |
106 | B=$ARG | |
107 | shift 2 | |
108 | ;; | |
45f53cc9 | 109 | -*) |
8e54701e | 110 | checkarg "$1" |
8e54701e AK |
111 | shift |
112 | ;; | |
47312d2c MM |
113 | esac |
114 | case "$CMD" in | |
115 | --enable|-e) | |
f5ef2f7b | 116 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=y" |
47312d2c | 117 | ;; |
8e54701e AK |
118 | |
119 | --disable|-d) | |
f5ef2f7b | 120 | set_var "${CONFIG_}$ARG" "# ${CONFIG_}$ARG is not set" |
8e54701e AK |
121 | ;; |
122 | ||
123 | --module|-m) | |
f5ef2f7b | 124 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=m" |
8e54701e AK |
125 | ;; |
126 | ||
1f990cf9 | 127 | --set-str) |
d6686da8 | 128 | # sed swallows one level of escaping, so we need double-escaping |
f5ef2f7b | 129 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=\"${1//\"/\\\\\"}\"" |
1f990cf9 MM |
130 | shift |
131 | ;; | |
132 | ||
f0a6332c | 133 | --set-val) |
f5ef2f7b | 134 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=$1" |
f0a6332c JA |
135 | shift |
136 | ;; | |
137 | ||
8e54701e | 138 | --state|-s) |
f5ef2f7b | 139 | if grep -q "# ${CONFIG_}$ARG is not set" $FN ; then |
8e54701e AK |
140 | echo n |
141 | else | |
f5ef2f7b | 142 | V="$(grep "^${CONFIG_}$ARG=" $FN)" |
8e54701e AK |
143 | if [ $? != 0 ] ; then |
144 | echo undef | |
145 | else | |
f5ef2f7b | 146 | V="${V/#${CONFIG_}$ARG=/}" |
d6686da8 YM |
147 | V="${V/#\"/}" |
148 | V="${V/%\"/}" | |
149 | V="${V/\\\"/\"}" | |
150 | echo "${V}" | |
8e54701e AK |
151 | fi |
152 | fi | |
8e54701e AK |
153 | ;; |
154 | ||
155 | --enable-after|-E) | |
f5ef2f7b | 156 | set_var "${CONFIG_}$B" "${CONFIG_}$B=y" "${CONFIG_}$A" |
8e54701e AK |
157 | ;; |
158 | ||
159 | --disable-after|-D) | |
f5ef2f7b | 160 | set_var "${CONFIG_}$B" "# ${CONFIG_}$B is not set" "${CONFIG_}$A" |
8e54701e AK |
161 | ;; |
162 | ||
163 | --module-after|-M) | |
f5ef2f7b | 164 | set_var "${CONFIG_}$B" "${CONFIG_}$B=m" "${CONFIG_}$A" |
8e54701e AK |
165 | ;; |
166 | ||
167 | # undocumented because it ignores --file (fixme) | |
168 | --refresh) | |
169 | yes "" | make oldconfig | |
170 | ;; | |
171 | ||
172 | *) | |
173 | usage | |
174 | ;; | |
175 | esac | |
176 | done | |
177 |