64 lines
1.2 KiB
Bash
64 lines
1.2 KiB
Bash
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#!/bin/sh
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# shellcheck shell=dash
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# A simple script that is run on a remote host to download and install the
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# agent binary.
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set -u
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# For Dev: file:///home/nikos/Projects/prymn/agent/target/debug/prymn_agent
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GET_PRYMN_ROOT="${GET_PRYMN_ROOT:?You need to set GET_PRYMN_ROOT to the prymn_agent path for now}"
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main() {
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# Check for dependencies
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check_for_command curl
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check_for_command mktemp
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local dir
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if ! dir="$(mktemp -d)"; then
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error "mktemp was not executed successfully"
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fi
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local file="${dir}/prymn_agent"
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local url="${GET_PRYMN_ROOT}"
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printf "downloading prymn agent...\n" 1>&2
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ensure download "${url}" "${file}"
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ensure chmod u+x "$file"
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# Run the installer
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"$file" --install
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local ret=$?
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rm "${file}"
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rmdir "${dir}"
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return $ret
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}
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download() {
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local err
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err=$(curl -sSfL "$1" -o "$2" 2>&1)
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if [ -n "$err" ]; then
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error "$err"
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fi
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}
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error() {
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printf "Error: %s\n" "$1" >&2
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exit 1
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}
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check_for_command() {
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if ! command -v "$1" > /dev/null 2>&1; then
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error "get_prymn.sh requires the program '$1' but it was not found in your system."
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fi
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}
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ensure() {
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"$@" || error "failed to execute: $*"
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}
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main "$@" || exit 1
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