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#!/bin/bash -e
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. "$(dirname "${BASH_SOURCE[0]}")"/util.sh
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if self_not_included; then
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### zip
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zip()
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{
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	echo_func
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	cmd_log_fd=1 try self "$@" || ignore 12 #"zip has nothing to do" (`man zip`)
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}
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unzip()
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{
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	echo_func
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	local piping="$(test "$1" = -p; exit2bool)"
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	cmd_log_fd="$(if test ! "$piping"; then echo 1; fi)" try self "$@"
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		# cmd_log_fd: don't filter stdout if piping extracted data to it
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	if test "$piping"; then ignore_e 1; fi # unzip exits 1 on SIGPIPE
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	end_try
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}
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zip_newer()   { echo_func; set_inv force; zip   ${no_force:+-u }"$@"; }
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unzip_newer() { echo_func; set_inv force; unzip ${no_force:+-u }-o "$@"; }
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	# -o is safe because -u only extracts newer files
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### compression of individual files
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compress()
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{
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	begin_target; : "${full_file:?}"; local zip_file="$full_file.zip"
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	(cd "$(dirname "$full_file")" full_file zip_file
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	zip_newer -9 "$zip_file" "$full_file")
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	unzip -t "$zip_file" # only if newly created
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}
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expand()
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{
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	begin_target; : "${full_file:?}"; local zip_file="$full_file.zip"
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	stdout="$full_file" to_file unzip <"$zip_file"
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}
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fi