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1 | #!/bin/bash |
2 | # Manipulate options in a .config file from the command line |
3 | |
4 | usage() { |
5 | cat >&2 <<EOL |
6 | Manipulate options in a .config file from the command line. |
7 | Usage: |
8 | config options command ... |
9 | commands: |
10 | --enable|-e option Enable option |
11 | --disable|-d option Disable option |
12 | --module|-m option Turn option into a module |
13 | --set-str option string |
14 | Set option to "string" |
15 | --set-val option value |
16 | Set option to value |
17 | --state|-s option Print state of option (n,y,m,undef) |
18 | |
19 | --enable-after|-E beforeopt option |
20 | Enable option directly after other option |
21 | --disable-after|-D beforeopt option |
22 | Disable option directly after other option |
23 | --module-after|-M beforeopt option |
24 | Turn option into module directly after other option |
25 | |
26 | commands can be repeated multiple times |
27 | |
28 | options: |
29 | --file .config file to change (default .config) |
30 | |
31 | config doesn't check the validity of the .config file. This is done at next |
32 | make time. |
33 | EOL |
34 | exit 1 |
35 | } |
36 | |
37 | checkarg() { |
38 | ARG="$1" |
39 | if [ "$ARG" = "" ] ; then |
40 | usage |
41 | fi |
42 | case "$ARG" in |
43 | CONFIG_*) |
44 | ARG="${ARG/CONFIG_/}" |
45 | ;; |
46 | esac |
47 | ARG="`echo $ARG | tr a-z A-Z`" |
48 | } |
49 | |
50 | set_var() { |
51 | local name=$1 new=$2 before=$3 |
52 | |
53 | name_re="^($name=|# $name is not set)" |
54 | before_re="^($before=|# $before is not set)" |
55 | if test -n "$before" && grep -Eq "$before_re" "$FN"; then |
56 | sed -ri "/$before_re/a $new" "$FN" |
57 | elif grep -Eq "$name_re" "$FN"; then |
58 | sed -ri "s:$name_re.*:$new:" "$FN" |
59 | else |
60 | echo "$new" >>"$FN" |
61 | fi |
62 | } |
63 | |
64 | if [ "$1" = "--file" ]; then |
65 | FN="$2" |
66 | if [ "$FN" = "" ] ; then |
67 | usage |
68 | fi |
69 | shift 2 |
70 | else |
71 | FN=.config |
72 | fi |
73 | |
74 | if [ "$1" = "" ] ; then |
75 | usage |
76 | fi |
77 | |
78 | while [ "$1" != "" ] ; do |
79 | CMD="$1" |
80 | shift |
81 | case "$CMD" in |
82 | --refresh) |
83 | ;; |
84 | --*-after) |
85 | checkarg "$1" |
86 | A=$ARG |
87 | checkarg "$2" |
88 | B=$ARG |
89 | shift 2 |
90 | ;; |
91 | -*) |
92 | checkarg "$1" |
93 | shift |
94 | ;; |
95 | esac |
96 | case "$CMD" in |
97 | --enable|-e) |
98 | set_var "CONFIG_$ARG" "CONFIG_$ARG=y" |
99 | ;; |
100 | |
101 | --disable|-d) |
102 | set_var "CONFIG_$ARG" "# CONFIG_$ARG is not set" |
103 | ;; |
104 | |
105 | --module|-m) |
106 | set_var "CONFIG_$ARG" "CONFIG_$ARG=m" |
107 | ;; |
108 | |
109 | --set-str) |
110 | set_var "CONFIG_$ARG" "CONFIG_$ARG=\"$1\"" |
111 | shift |
112 | ;; |
113 | |
114 | --set-val) |
115 | set_var "CONFIG_$ARG" "CONFIG_$ARG=$1" |
116 | shift |
117 | ;; |
118 | |
119 | --state|-s) |
120 | if grep -q "# CONFIG_$ARG is not set" $FN ; then |
121 | echo n |
122 | else |
123 | V="$(grep "^CONFIG_$ARG=" $FN)" |
124 | if [ $? != 0 ] ; then |
125 | echo undef |
126 | else |
127 | V="${V/CONFIG_$ARG=/}" |
128 | V="${V/\"/}" |
129 | echo "$V" |
130 | fi |
131 | fi |
132 | ;; |
133 | |
134 | --enable-after|-E) |
135 | set_var "CONFIG_$B" "CONFIG_$B=y" "CONFIG_$A" |
136 | ;; |
137 | |
138 | --disable-after|-D) |
139 | set_var "CONFIG_$B" "# CONFIG_$B is not set" "CONFIG_$A" |
140 | ;; |
141 | |
142 | --module-after|-M) |
143 | set_var "CONFIG_$B" "CONFIG_$B=m" "CONFIG_$A" |
144 | ;; |
145 | |
146 | # undocumented because it ignores --file (fixme) |
147 | --refresh) |
148 | yes "" | make oldconfig |
149 | ;; |
150 | |
151 | *) |
152 | usage |
153 | ;; |
154 | esac |
155 | done |
156 | |
157 |
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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