Commit | Line | Data |
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8e54701e AK |
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 | --state|-s option Print state of option (n,y,m,undef) | |
14 | ||
15 | --enable-after|-E beforeopt option | |
16 | Enable option directly after other option | |
17 | --disable-after|-D beforeopt option | |
18 | Disable option directly after other option | |
19 | --module-after|-M beforeopt option | |
20 | Turn option into module directly after other option | |
21 | ||
22 | commands can be repeated multiple times | |
23 | ||
24 | options: | |
25 | --file .config file to change (default .config) | |
26 | ||
27 | config doesn't check the validity of the .config file. This is done at next | |
28 | make time. | |
29 | The options need to be already in the file before they can be changed, | |
30 | but sometimes you can cheat with the --*-after options. | |
31 | EOL | |
32 | exit 1 | |
33 | } | |
34 | ||
35 | checkarg() { | |
36 | ARG="$1" | |
37 | if [ "$ARG" = "" ] ; then | |
38 | usage | |
39 | fi | |
40 | case "$ARG" in | |
41 | CONFIG_*) | |
42 | ARG="${ARG/CONFIG_/}" | |
43 | ;; | |
44 | esac | |
45 | ARG="`echo $ARG | tr a-z A-Z`" | |
46 | } | |
47 | ||
48 | replace() { | |
49 | sed -i -e "$@" $FN | |
50 | } | |
51 | ||
52 | if [ "$1" = "--file" ]; then | |
53 | FN="$2" | |
54 | if [ "$FN" = "" ] ; then | |
55 | usage | |
56 | fi | |
57 | shift | |
58 | shift | |
59 | else | |
60 | FN=.config | |
61 | fi | |
62 | ||
2302e873 AK |
63 | if [ "$1" = "" ] ; then |
64 | usage | |
65 | fi | |
66 | ||
8e54701e AK |
67 | while [ "$1" != "" ] ; do |
68 | CMD="$1" | |
69 | shift | |
70 | case "$CMD" in | |
71 | --enable|-e) | |
72 | checkarg "$1" | |
73 | replace "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/" | |
74 | shift | |
75 | ;; | |
76 | ||
77 | --disable|-d) | |
78 | checkarg "$1" | |
79 | replace "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/" | |
80 | shift | |
81 | ;; | |
82 | ||
83 | --module|-m) | |
84 | checkarg "$1" | |
85 | replace "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \ | |
86 | -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/" | |
87 | shift | |
88 | ;; | |
89 | ||
90 | --state|-s) | |
91 | checkarg "$1" | |
92 | if grep -q "# CONFIG_$ARG is not set" $FN ; then | |
93 | echo n | |
94 | else | |
95 | V="$(grep "^CONFIG_$ARG=" $FN)" | |
96 | if [ $? != 0 ] ; then | |
97 | echo undef | |
98 | else | |
99 | V="${V/CONFIG_$ARG=/}" | |
100 | V="${V/\"/}" | |
101 | echo "$V" | |
102 | fi | |
103 | fi | |
104 | shift | |
105 | ;; | |
106 | ||
107 | --enable-after|-E) | |
108 | checkarg "$1" | |
109 | A=$ARG | |
110 | checkarg "$2" | |
111 | B=$ARG | |
112 | replace "/CONFIG_$A=[my]/aCONFIG_$B=y" \ | |
113 | -e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=y" \ | |
114 | -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/" | |
115 | shift | |
116 | shift | |
117 | ;; | |
118 | ||
119 | --disable-after|-D) | |
120 | checkarg "$1" | |
121 | A=$ARG | |
122 | checkarg "$2" | |
123 | B=$ARG | |
124 | replace "/CONFIG_$A=[my]/a# CONFIG_$B is not set" \ | |
125 | -e "/# CONFIG_$ARG is not set/a/# CONFIG_$ARG is not set" \ | |
126 | -e "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/" | |
127 | shift | |
128 | shift | |
129 | ;; | |
130 | ||
131 | --module-after|-M) | |
132 | checkarg "$1" | |
133 | A=$ARG | |
134 | checkarg "$2" | |
135 | B=$ARG | |
136 | replace "/CONFIG_$A=[my]/aCONFIG_$B=m" \ | |
137 | -e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=m" \ | |
138 | -e "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \ | |
139 | -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/" | |
140 | shift | |
141 | shift | |
142 | ;; | |
143 | ||
144 | # undocumented because it ignores --file (fixme) | |
145 | --refresh) | |
146 | yes "" | make oldconfig | |
147 | ;; | |
148 | ||
149 | *) | |
150 | usage | |
151 | ;; | |
152 | esac | |
153 | done | |
154 |