Mercurial > dotfiles
annotate .shell.d/00.path_manipulation.sh @ 526:852565046ed0 default tip
zsh: fidget with screen/tmux message
This should speed things up very slightly by avoiding some `grep` action
in the common case of no detached screens/tmuxes.
| author | Augie Fackler <raf@durin42.com> |
|---|---|
| date | Mon, 14 Nov 2022 11:02:35 -0500 |
| parents | b0fa9e7cadac |
| children |
| 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() { | |
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path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
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4 insert_element_into_var $1 PATH |
| 0 | 5 } |
| 6 | |
| 7 function remove_path_element() { | |
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7dfb7799567f
path_manipulation: Fix accidental recursion.
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parents:
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8 remove_element_from_var $1 PATH |
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135
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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9 } |
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de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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10 |
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de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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11 function insert_element_into_var () { |
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de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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12 eval varcontents=\$"$2" |
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de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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13 eval varname="$2" |
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de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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14 newcomp="$1" |
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b0fa9e7cadac
shell: speed things up by golfing out grep
Augie Fackler <raf@durin42.com>
parents:
490
diff
changeset
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15 if [[ "$varcontents" =~ "${newcomp}:" ]] ; then |
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135
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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16 true |
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525
b0fa9e7cadac
shell: speed things up by golfing out grep
Augie Fackler <raf@durin42.com>
parents:
490
diff
changeset
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17 elif [[ -z "$varcontents" ]] ; then |
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135
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
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18 export $varname="$newcomp" |
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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 |
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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 |
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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 $varname |
|
de6d0a9a7e3f
path_manipulation: more flexible so it can be used on non-PATH items
Augie Fackler <durin42@gmail.com>
parents:
39
diff
changeset
|
32 fi |
| 0 | 33 } |
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484
c85072e620a8
append_path_element: new function that I've had for a while
Augie Fackler <raf@durin42.com>
parents:
149
diff
changeset
|
34 |
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c85072e620a8
append_path_element: new function that I've had for a while
Augie Fackler <raf@durin42.com>
parents:
149
diff
changeset
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35 function append_path_element() { |
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c85072e620a8
append_path_element: new function that I've had for a while
Augie Fackler <raf@durin42.com>
parents:
149
diff
changeset
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36 export PATH="${PATH}:$1" |
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c85072e620a8
append_path_element: new function that I've had for a while
Augie Fackler <raf@durin42.com>
parents:
149
diff
changeset
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37 } |