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manuel-192
47 lines
1014 B
Bash
Executable File
47 lines
1014 B
Bash
Executable File
#!/bin/bash
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# Show a waiting indicator on the terminal.
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# Usage: eos-waiting-indicator lock-file
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DIE() {
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echo "Error: $1" >&2
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exit 1
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}
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ShowIndicator() {
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local str items
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# items=( "◡◡" "⊙⊙" "◠◠" )
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# items=( "◴" "◷" "◶" "◵" )
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# items=( "▁" "▂" "▃" "▄" "▅" "▆" "▇" "█" "▇" "▆" "▅" "▄" "▃" "▁" )
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items=( "◢" "◣" "◤" "◥" )
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tput civis # hide cursor
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#printf "%s\n" "$prompt" >&2
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case "$1" in
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-nl) printf "\n" >&2 ;;
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esac
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while true ; do
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for str in "${items[@]}" ; do
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printf "\r%s %s" "$prompt" "$str" >&2
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if [ ! -r "$lockfile" ] ; then
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tput cnorm # unhide cursor
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return
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fi
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sleep 0.25
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done
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done
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}
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Main()
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{
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local lockfile="$1"
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local prompt="$2"
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[ -n "$lockfile" ] || DIE "lockfile argument missing"
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[ -r "$lockfile" ] || DIE "lockfile does not exist"
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ShowIndicator -nl
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}
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Main "$@"
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