Mercurial > dotfiles
annotate .shell.d/00.path_manipulation.sh @ 325:64e73453e43f
xmonad: Pull apart custom layout into something readable
This change doesn't affect any behavior, but it does document the custom
layout by naming function parameters. Hopefully, this will make things
easier to fix the next time the XMonad developers break us.
| author | Lucas Bergman <lucas@bergmans.us> |
|---|---|
| date | Tue, 11 Mar 2014 12:49:05 -0500 |
| parents | 7dfb7799567f |
| children | c85072e620a8 |
| rev | line source |
|---|---|
| 0 | 1 # Functions for manipulating $PATH. Split out so I can use them in .zshenv if I want. |
| 2 | |
| 3 function insert_path_element() { | |
|
135
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
4 insert_element_into_var $1 PATH |
| 0 | 5 } |
| 6 | |
| 7 function remove_path_element() { | |
|
149
7dfb7799567f
path_manipulation: Fix accidental recursion.
Augie Fackler <durin42@gmail.com>
parents:
135
diff
changeset
|
8 remove_element_from_var $1 PATH |
|
135
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
9 } |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
10 |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
11 function insert_element_into_var () { |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
12 eval varcontents=\$"$2" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
13 eval varname="$2" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
14 newcomp="$1" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
15 if echo "$varcontents" | grep "$newcomp:" >> /dev/null; then |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
16 true |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
17 elif [[ "$varcontents" == "" ]] ; then |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
18 export $varname="$newcomp" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
19 else |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
20 export $varname="$newcomp:$varcontents" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
21 fi |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
22 } |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
23 |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
24 function remove_element_from_var() { |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
25 eval varcontents=\$"$2" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
26 eval varname="$2" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
27 newcomp="$1" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
28 if echo "$varcontents" | grep "$newcomp:" >> /dev/null; then |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
29 export $varname="`echo $varcontents | sed s%$newcomp:%%`" |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
30 elif [[ "$varcontents" == "$newcomp" ]] ; then |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
31 unset $varname |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
32 else |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
33 echo $1 not in $varname |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
34 fi |
| 0 | 35 } |