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https://github.com/kovidgoyal/kitty
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Merge branch 'prompt_command-empty-check' of https://github.com/akinomyoga/kitty
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@@ -280,7 +280,7 @@ _ksi_main() {
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# from the shell
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builtin local pc
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pc='builtin declare -F _ksi_prompt_command > /dev/null 2> /dev/null && _ksi_prompt_command'
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if [[ -z "${PROMPT_COMMAND}" ]]; then
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if [[ -z "${PROMPT_COMMAND[*]}" ]]; then
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PROMPT_COMMAND=([0]="$pc")
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elif [[ $(builtin declare -p PROMPT_COMMAND 2> /dev/null) =~ 'declare -a PROMPT_COMMAND' ]]; then
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PROMPT_COMMAND+=("$pc")
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