Commit | Line | Data |
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8e54701e AK |
1 | #!/bin/bash |
2 | # Manipulate options in a .config file from the command line | |
3 | ||
73877785 CC |
4 | myname=${0##*/} |
5 | ||
f5ef2f7b YM |
6 | # If no prefix forced, use the default CONFIG_ |
7 | CONFIG_="${CONFIG_-CONFIG_}" | |
8 | ||
8e54701e AK |
9 | usage() { |
10 | cat >&2 <<EOL | |
11 | Manipulate options in a .config file from the command line. | |
12 | Usage: | |
73877785 | 13 | $myname options command ... |
8e54701e AK |
14 | commands: |
15 | --enable|-e option Enable option | |
16 | --disable|-d option Disable option | |
1f990cf9 | 17 | --module|-m option Turn option into a module |
f0a6332c JA |
18 | --set-str option string |
19 | Set option to "string" | |
20 | --set-val option value | |
21 | Set option to value | |
d5bfb6b3 | 22 | --undefine|-u option Undefine option |
1f990cf9 | 23 | --state|-s option Print state of option (n,y,m,undef) |
8e54701e AK |
24 | |
25 | --enable-after|-E beforeopt option | |
26 | Enable option directly after other option | |
27 | --disable-after|-D beforeopt option | |
28 | Disable option directly after other option | |
29 | --module-after|-M beforeopt option | |
30 | Turn option into module directly after other option | |
31 | ||
32 | commands can be repeated multiple times | |
33 | ||
34 | options: | |
4edc7e32 YM |
35 | --file config-file .config file to change (default .config) |
36 | --keep-case|-k Keep next symbols' case (dont' upper-case it) | |
8e54701e | 37 | |
73877785 | 38 | $myname doesn't check the validity of the .config file. This is done at next |
4edc7e32 YM |
39 | make time. |
40 | ||
73877785 | 41 | By default, $myname will upper-case the given symbol. Use --keep-case to keep |
4edc7e32 | 42 | the case of all following symbols unchanged. |
f5ef2f7b | 43 | |
73877785 CC |
44 | $myname uses 'CONFIG_' as the default symbol prefix. Set the environment |
45 | variable CONFIG_ to the prefix to use. Eg.: CONFIG_="FOO_" $myname ... | |
8e54701e AK |
46 | EOL |
47 | exit 1 | |
48 | } | |
49 | ||
50 | checkarg() { | |
51 | ARG="$1" | |
52 | if [ "$ARG" = "" ] ; then | |
53 | usage | |
54 | fi | |
55 | case "$ARG" in | |
f5ef2f7b YM |
56 | ${CONFIG_}*) |
57 | ARG="${ARG/${CONFIG_}/}" | |
8e54701e AK |
58 | ;; |
59 | esac | |
4edc7e32 YM |
60 | if [ "$MUNGE_CASE" = "yes" ] ; then |
61 | ARG="`echo $ARG | tr a-z A-Z`" | |
62 | fi | |
8e54701e AK |
63 | } |
64 | ||
56643222 MM |
65 | set_var() { |
66 | local name=$1 new=$2 before=$3 | |
67 | ||
68 | name_re="^($name=|# $name is not set)" | |
69 | before_re="^($before=|# $before is not set)" | |
70 | if test -n "$before" && grep -Eq "$before_re" "$FN"; then | |
71 | sed -ri "/$before_re/a $new" "$FN" | |
72 | elif grep -Eq "$name_re" "$FN"; then | |
73 | sed -ri "s:$name_re.*:$new:" "$FN" | |
74 | else | |
75 | echo "$new" >>"$FN" | |
76 | fi | |
8e54701e AK |
77 | } |
78 | ||
d5bfb6b3 YM |
79 | undef_var() { |
80 | local name=$1 | |
81 | ||
82 | sed -ri "/^($name=|# $name is not set)/d" "$FN" | |
83 | } | |
84 | ||
8e54701e AK |
85 | if [ "$1" = "--file" ]; then |
86 | FN="$2" | |
87 | if [ "$FN" = "" ] ; then | |
88 | usage | |
89 | fi | |
47312d2c | 90 | shift 2 |
8e54701e AK |
91 | else |
92 | FN=.config | |
93 | fi | |
94 | ||
2302e873 AK |
95 | if [ "$1" = "" ] ; then |
96 | usage | |
97 | fi | |
98 | ||
4edc7e32 | 99 | MUNGE_CASE=yes |
8e54701e AK |
100 | while [ "$1" != "" ] ; do |
101 | CMD="$1" | |
102 | shift | |
103 | case "$CMD" in | |
4edc7e32 YM |
104 | --keep-case|-k) |
105 | MUNGE_CASE=no | |
4edc7e32 YM |
106 | continue |
107 | ;; | |
47312d2c MM |
108 | --refresh) |
109 | ;; | |
57a9c760 | 110 | --*-after|-E|-D|-M) |
47312d2c MM |
111 | checkarg "$1" |
112 | A=$ARG | |
113 | checkarg "$2" | |
114 | B=$ARG | |
115 | shift 2 | |
116 | ;; | |
45f53cc9 | 117 | -*) |
8e54701e | 118 | checkarg "$1" |
8e54701e AK |
119 | shift |
120 | ;; | |
47312d2c MM |
121 | esac |
122 | case "$CMD" in | |
123 | --enable|-e) | |
f5ef2f7b | 124 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=y" |
47312d2c | 125 | ;; |
8e54701e AK |
126 | |
127 | --disable|-d) | |
f5ef2f7b | 128 | set_var "${CONFIG_}$ARG" "# ${CONFIG_}$ARG is not set" |
8e54701e AK |
129 | ;; |
130 | ||
131 | --module|-m) | |
f5ef2f7b | 132 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=m" |
8e54701e AK |
133 | ;; |
134 | ||
1f990cf9 | 135 | --set-str) |
d6686da8 | 136 | # sed swallows one level of escaping, so we need double-escaping |
f5ef2f7b | 137 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=\"${1//\"/\\\\\"}\"" |
1f990cf9 MM |
138 | shift |
139 | ;; | |
140 | ||
f0a6332c | 141 | --set-val) |
f5ef2f7b | 142 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=$1" |
f0a6332c JA |
143 | shift |
144 | ;; | |
d5bfb6b3 YM |
145 | --undefine|-u) |
146 | undef_var "${CONFIG_}$ARG" | |
147 | ;; | |
f0a6332c | 148 | |
8e54701e | 149 | --state|-s) |
f5ef2f7b | 150 | if grep -q "# ${CONFIG_}$ARG is not set" $FN ; then |
8e54701e AK |
151 | echo n |
152 | else | |
f5ef2f7b | 153 | V="$(grep "^${CONFIG_}$ARG=" $FN)" |
8e54701e AK |
154 | if [ $? != 0 ] ; then |
155 | echo undef | |
156 | else | |
f5ef2f7b | 157 | V="${V/#${CONFIG_}$ARG=/}" |
d6686da8 YM |
158 | V="${V/#\"/}" |
159 | V="${V/%\"/}" | |
1925a276 | 160 | V="${V//\\\"/\"}" |
d6686da8 | 161 | echo "${V}" |
8e54701e AK |
162 | fi |
163 | fi | |
8e54701e AK |
164 | ;; |
165 | ||
166 | --enable-after|-E) | |
f5ef2f7b | 167 | set_var "${CONFIG_}$B" "${CONFIG_}$B=y" "${CONFIG_}$A" |
8e54701e AK |
168 | ;; |
169 | ||
170 | --disable-after|-D) | |
f5ef2f7b | 171 | set_var "${CONFIG_}$B" "# ${CONFIG_}$B is not set" "${CONFIG_}$A" |
8e54701e AK |
172 | ;; |
173 | ||
174 | --module-after|-M) | |
f5ef2f7b | 175 | set_var "${CONFIG_}$B" "${CONFIG_}$B=m" "${CONFIG_}$A" |
8e54701e AK |
176 | ;; |
177 | ||
178 | # undocumented because it ignores --file (fixme) | |
179 | --refresh) | |
180 | yes "" | make oldconfig | |
181 | ;; | |
182 | ||
183 | *) | |
184 | usage | |
185 | ;; | |
186 | esac | |
187 | done | |
188 |