78 lines
1.9 KiB
Bash
Executable file
78 lines
1.9 KiB
Bash
Executable file
#!/usr/bin/env bash
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VERSION="$1"
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UNSUPPORTED_MSG="$2"
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get_tmux_option() {
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local option=$1
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local default_value=$2
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local option_value=$(tmux show-option -gqv "$option")
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if [ -z "$option_value" ]; then
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echo "$default_value"
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else
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echo "$option_value"
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fi
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}
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# Ensures a message is displayed for 5 seconds in tmux prompt.
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# Does not override the 'display-time' tmux option.
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display_message() {
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local message="$1"
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# display_duration defaults to 5 seconds, if not passed as an argument
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if [ "$#" -eq 2 ]; then
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local display_duration="$2"
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else
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local display_duration="5000"
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fi
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# saves user-set 'display-time' option
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local saved_display_time=$(get_tmux_option "display-time" "750")
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# sets message display time to 5 seconds
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tmux set-option -gq display-time "$display_duration"
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# displays message
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tmux display-message "$message"
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# restores original 'display-time' value
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tmux set-option -gq display-time "$saved_display_time"
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}
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# this is used to get "clean" integer version number. Examples:
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# `tmux 1.9` => `19`
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# `1.9a` => `19`
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get_digits_from_string() {
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local string="$1"
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local only_digits="$(echo "$string" | tr -dC '[:digit:]')"
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echo "$only_digits"
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}
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tmux_version_int() {
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local tmux_version_string=$(tmux -V)
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echo "$(get_digits_from_string "$tmux_version_string")"
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}
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unsupported_version_message() {
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if [ -n "$UNSUPPORTED_MSG" ]; then
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echo "$UNSUPPORTED_MSG"
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else
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echo "Error, Tmux version unsupported! Please install Tmux version $VERSION or greater!"
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fi
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}
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exit_if_unsupported_version() {
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local current_version="$1"
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local supported_version="$2"
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if [ "$current_version" -lt "$supported_version" ]; then
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display_message "$(unsupported_version_message)"
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exit 1
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fi
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}
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main() {
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local supported_version_int="$(get_digits_from_string "$VERSION")"
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local current_version_int="$(tmux_version_int)"
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exit_if_unsupported_version "$current_version_int" "$supported_version_int"
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}
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main
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