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1 | #!/bin/bash |
2 | # Manipulate options in a .config file from the command line |
3 | |
4 | myname=${0##*/} |
5 | |
6 | # If no prefix forced, use the default CONFIG_ |
7 | CONFIG_="${CONFIG_-CONFIG_}" |
8 | |
9 | usage() { |
10 | cat >&2 <<EOL |
11 | Manipulate options in a .config file from the command line. |
12 | Usage: |
13 | $myname options command ... |
14 | commands: |
15 | --enable|-e option Enable option |
16 | --disable|-d option Disable option |
17 | --module|-m option Turn option into a module |
18 | --set-str option string |
19 | Set option to "string" |
20 | --set-val option value |
21 | Set option to value |
22 | --undefine|-u option Undefine option |
23 | --state|-s option Print state of option (n,y,m,undef) |
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: |
35 | --file config-file .config file to change (default .config) |
36 | --keep-case|-k Keep next symbols' case (dont' upper-case it) |
37 | |
38 | $myname doesn't check the validity of the .config file. This is done at next |
39 | make time. |
40 | |
41 | By default, $myname will upper-case the given symbol. Use --keep-case to keep |
42 | the case of all following symbols unchanged. |
43 | |
44 | $myname uses 'CONFIG_' as the default symbol prefix. Set the environment |
45 | variable CONFIG_ to the prefix to use. Eg.: CONFIG_="FOO_" $myname ... |
46 | EOL |
47 | exit 1 |
48 | } |
49 | |
50 | checkarg() { |
51 | ARG="$1" |
52 | if [ "$ARG" = "" ] ; then |
53 | usage |
54 | fi |
55 | case "$ARG" in |
56 | ${CONFIG_}*) |
57 | ARG="${ARG/${CONFIG_}/}" |
58 | ;; |
59 | esac |
60 | if [ "$MUNGE_CASE" = "yes" ] ; then |
61 | ARG="`echo $ARG | tr a-z A-Z`" |
62 | fi |
63 | } |
64 | |
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 |
77 | } |
78 | |
79 | undef_var() { |
80 | local name=$1 |
81 | |
82 | sed -ri "/^($name=|# $name is not set)/d" "$FN" |
83 | } |
84 | |
85 | if [ "$1" = "--file" ]; then |
86 | FN="$2" |
87 | if [ "$FN" = "" ] ; then |
88 | usage |
89 | fi |
90 | shift 2 |
91 | else |
92 | FN=.config |
93 | fi |
94 | |
95 | if [ "$1" = "" ] ; then |
96 | usage |
97 | fi |
98 | |
99 | MUNGE_CASE=yes |
100 | while [ "$1" != "" ] ; do |
101 | CMD="$1" |
102 | shift |
103 | case "$CMD" in |
104 | --keep-case|-k) |
105 | MUNGE_CASE=no |
106 | continue |
107 | ;; |
108 | --refresh) |
109 | ;; |
110 | --*-after|-E|-D|-M) |
111 | checkarg "$1" |
112 | A=$ARG |
113 | checkarg "$2" |
114 | B=$ARG |
115 | shift 2 |
116 | ;; |
117 | -*) |
118 | checkarg "$1" |
119 | shift |
120 | ;; |
121 | esac |
122 | case "$CMD" in |
123 | --enable|-e) |
124 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=y" |
125 | ;; |
126 | |
127 | --disable|-d) |
128 | set_var "${CONFIG_}$ARG" "# ${CONFIG_}$ARG is not set" |
129 | ;; |
130 | |
131 | --module|-m) |
132 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=m" |
133 | ;; |
134 | |
135 | --set-str) |
136 | # sed swallows one level of escaping, so we need double-escaping |
137 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=\"${1//\"/\\\\\"}\"" |
138 | shift |
139 | ;; |
140 | |
141 | --set-val) |
142 | set_var "${CONFIG_}$ARG" "${CONFIG_}$ARG=$1" |
143 | shift |
144 | ;; |
145 | --undefine|-u) |
146 | undef_var "${CONFIG_}$ARG" |
147 | ;; |
148 | |
149 | --state|-s) |
150 | if grep -q "# ${CONFIG_}$ARG is not set" $FN ; then |
151 | echo n |
152 | else |
153 | V="$(grep "^${CONFIG_}$ARG=" $FN)" |
154 | if [ $? != 0 ] ; then |
155 | echo undef |
156 | else |
157 | V="${V/#${CONFIG_}$ARG=/}" |
158 | V="${V/#\"/}" |
159 | V="${V/%\"/}" |
160 | V="${V//\\\"/\"}" |
161 | echo "${V}" |
162 | fi |
163 | fi |
164 | ;; |
165 | |
166 | --enable-after|-E) |
167 | set_var "${CONFIG_}$B" "${CONFIG_}$B=y" "${CONFIG_}$A" |
168 | ;; |
169 | |
170 | --disable-after|-D) |
171 | set_var "${CONFIG_}$B" "# ${CONFIG_}$B is not set" "${CONFIG_}$A" |
172 | ;; |
173 | |
174 | --module-after|-M) |
175 | set_var "${CONFIG_}$B" "${CONFIG_}$B=m" "${CONFIG_}$A" |
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 | |
189 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9