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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. | |
8e54701e AK |
29 | EOL |
30 | exit 1 | |
31 | } | |
32 | ||
33 | checkarg() { | |
34 | ARG="$1" | |
35 | if [ "$ARG" = "" ] ; then | |
36 | usage | |
37 | fi | |
38 | case "$ARG" in | |
39 | CONFIG_*) | |
40 | ARG="${ARG/CONFIG_/}" | |
41 | ;; | |
42 | esac | |
43 | ARG="`echo $ARG | tr a-z A-Z`" | |
44 | } | |
45 | ||
56643222 MM |
46 | set_var() { |
47 | local name=$1 new=$2 before=$3 | |
48 | ||
49 | name_re="^($name=|# $name is not set)" | |
50 | before_re="^($before=|# $before is not set)" | |
51 | if test -n "$before" && grep -Eq "$before_re" "$FN"; then | |
52 | sed -ri "/$before_re/a $new" "$FN" | |
53 | elif grep -Eq "$name_re" "$FN"; then | |
54 | sed -ri "s:$name_re.*:$new:" "$FN" | |
55 | else | |
56 | echo "$new" >>"$FN" | |
57 | fi | |
8e54701e AK |
58 | } |
59 | ||
60 | if [ "$1" = "--file" ]; then | |
61 | FN="$2" | |
62 | if [ "$FN" = "" ] ; then | |
63 | usage | |
64 | fi | |
47312d2c | 65 | shift 2 |
8e54701e AK |
66 | else |
67 | FN=.config | |
68 | fi | |
69 | ||
2302e873 AK |
70 | if [ "$1" = "" ] ; then |
71 | usage | |
72 | fi | |
73 | ||
8e54701e AK |
74 | while [ "$1" != "" ] ; do |
75 | CMD="$1" | |
76 | shift | |
77 | case "$CMD" in | |
47312d2c MM |
78 | --refresh) |
79 | ;; | |
80 | --*-after) | |
81 | checkarg "$1" | |
82 | A=$ARG | |
83 | checkarg "$2" | |
84 | B=$ARG | |
85 | shift 2 | |
86 | ;; | |
87 | --*) | |
8e54701e | 88 | checkarg "$1" |
8e54701e AK |
89 | shift |
90 | ;; | |
47312d2c MM |
91 | esac |
92 | case "$CMD" in | |
93 | --enable|-e) | |
94 | set_var "CONFIG_$ARG" "CONFIG_$ARG=y" | |
95 | ;; | |
8e54701e AK |
96 | |
97 | --disable|-d) | |
56643222 | 98 | set_var "CONFIG_$ARG" "# CONFIG_$ARG is not set" |
8e54701e AK |
99 | ;; |
100 | ||
101 | --module|-m) | |
56643222 | 102 | set_var "CONFIG_$ARG" "CONFIG_$ARG=m" |
8e54701e AK |
103 | ;; |
104 | ||
105 | --state|-s) | |
8e54701e AK |
106 | if grep -q "# CONFIG_$ARG is not set" $FN ; then |
107 | echo n | |
108 | else | |
109 | V="$(grep "^CONFIG_$ARG=" $FN)" | |
110 | if [ $? != 0 ] ; then | |
111 | echo undef | |
112 | else | |
113 | V="${V/CONFIG_$ARG=/}" | |
114 | V="${V/\"/}" | |
115 | echo "$V" | |
116 | fi | |
117 | fi | |
8e54701e AK |
118 | ;; |
119 | ||
120 | --enable-after|-E) | |
56643222 | 121 | set_var "CONFIG_$B" "CONFIG_$B=y" "CONFIG_$A" |
8e54701e AK |
122 | ;; |
123 | ||
124 | --disable-after|-D) | |
56643222 | 125 | set_var "CONFIG_$B" "# CONFIG_$B is not set" "CONFIG_$A" |
8e54701e AK |
126 | ;; |
127 | ||
128 | --module-after|-M) | |
56643222 | 129 | set_var "CONFIG_$B" "CONFIG_$B=m" "CONFIG_$A" |
8e54701e AK |
130 | ;; |
131 | ||
132 | # undocumented because it ignores --file (fixme) | |
133 | --refresh) | |
134 | yes "" | make oldconfig | |
135 | ;; | |
136 | ||
137 | *) | |
138 | usage | |
139 | ;; | |
140 | esac | |
141 | done | |
142 |