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https://github.com/fish-shell/fish-shell
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948b9d2ab8
Executes `whatis` safely, returns at most one line, and strips the name of the command from the start of line, returning a value fit for use as the description parameter for a completion argument value.
21 lines
441 B
Fish
21 lines
441 B
Fish
# uses `whatis` if available to describe a command
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function __fish_whatis
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set -l cmd $argv[1]
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set -l fallback
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if set -q argv[2]
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set fallback $argv[2]
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end
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set -l description (whatis $cmd 2>/dev/null | string replace -r '.*? - ' '')[1]
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if not string match -qr -- "$description" "."
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printf '%s\n' $description
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return 0
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else if not string match -q -- "$fallback" ""
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printf '%s\n' $fallback
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return 0
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else
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return 1
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end
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end
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