mirror of
https://github.com/yavook/kiwi-scp.git
synced 2024-11-25 05:53:00 +00:00
95 lines
2.2 KiB
Bash
Executable file
95 lines
2.2 KiB
Bash
Executable file
#!/bin/sh
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#############
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# CONSTANTS #
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#############
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# default installation directory
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INSTALL_DIR_DEFAULT="/usr/local/sbin"
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# URI of "kiwi" launcher script
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KIWI_URI="https://raw.githubusercontent.com/ldericher/kiwi-scp/master/kiwi"
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#############
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# FUNCTIONS #
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#############
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# prompt yes/no question (default yes)
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yes_no() {
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# prompt and read from terminal
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printf "%s [Y|n] " "${1}"
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read -r answer </dev/tty || answer=""
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# check first character
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answer="$(printf '%.1s' "${answer}")"
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if [ "${answer}" = "N" ] || [ "${answer}" = "n" ]; then
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# negative
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return 1
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else
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# positive
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return 0
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fi
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}
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# exit with error
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die() {
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echo "ERROR: ${1}!" >/dev/stderr
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exit 1
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}
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########
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# MAIN #
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########
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# check if already installed
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install_kiwi="$(command -v kiwi)"
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if [ -x "${install_kiwi}" ]; then
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# kiwi is installed: Choose that directory
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install_dir="$(dirname "${install_kiwi}")"
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if ! yes_no "kiwi executable found in '${install_dir}'. Overwrite?"; then
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die "Uninstall existing '${install_kiwi}' first"
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fi
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elif [ ${#} -gt 0 ]; then
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# install dir candidate given as CLI argument
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install_dir="${1}"
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shift 1
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fi
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# check dir given by argument
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while [ ! -d "${install_dir}" ]; do
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# prompt user for installation directory
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printf "Select installation directory [Default: '%s']: " "${INSTALL_DIR_DEFAULT}"
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read -r install_dir </dev/tty || install_dir="${INSTALL_DIR_DEFAULT}"
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install_dir="${install_dir:-${INSTALL_DIR_DEFAULT}}"
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# check dir given on terminal
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if [ ! -d "${install_dir}" ]; then
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# fail if install dir can't be created
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if yes_no "Install directory doesn't exist. Try creating?"; then
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if ! mkdir -p "${install_dir}" >/dev/null 2>/dev/null; then
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die "Couldn't create install directory"
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fi
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fi
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fi
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done
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# start actual installation
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printf "Installing into '%s' ... " "${install_dir}"
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tmp_file="$(mktemp)"
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if ! curl --proto '=https' --tlsv1.2 -sSf -o "${tmp_file}" "${KIWI_URI}" >/dev/null 2>/dev/null; then
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rm "${tmp_file}"
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die "Downloading 'kiwi' failed"
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fi
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if ! install -m 0755 "${tmp_file}" "${install_dir}/kiwi" >/dev/null 2>/dev/null; then
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rm "${tmp_file}"
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die "Installing 'kiwi' failed"
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fi
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# finalization
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rm "${tmp_file}"
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echo "OK"
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exit 0
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