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harden abbr against undef vars

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This is only needed if we make undefined vars an error as proposed in
issue #4163 but it's a good idea anyway.
This commit is contained in:
Kurtis Rader 2017-07-03 13:05:50 -07:00
parent 763063e741
commit 0ec9acf0f0
2 changed files with 8 additions and 2 deletions
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8
share/functions/abbr.fish
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@ -96,8 +96,10 @@ function abbr --description "Manage abbreviations"
end
# Bail out early if the exact abbr is already in
contains -- "$mode_arg" $fish_user_abbreviations
set -q fish_user_abbreviations
and contains -- "$mode_arg" $fish_user_abbreviations
and return 0
set -l key $mode_arg[1]
set -e mode_arg[1]
set -l value "$mode_arg"
@ -186,6 +188,10 @@ function __fish_abbr_get_by_key
echo "__fish_abbr_get_by_key: expected one argument, got none" >&2
return 2
end
set -q fish_user_abbreviations
or return 1
# Going through all entries is still quicker than calling `seq`
set -l keys
for kv in $fish_user_abbreviations