mirror of https://github.com/bcicen/ctop.git
85 lines
2.0 KiB
Bash
Executable File
85 lines
2.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# a simple install script for ctop
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KERNEL=$(uname -s)
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function output() { echo -e "\033[32mctop-install\033[0m $@"; }
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function command_exists() {
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command -v "$@" > /dev/null 2>&1
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}
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# extract github download url matching pattern
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function extract_url() {
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match=$1; shift
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echo "$@" | while read line; do
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case $line in
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*browser_download_url*${match}*)
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url=$(echo $line | sed -e 's/^.*"browser_download_url":[ ]*"//' -e 's/".*//;s/\ //g')
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echo $url
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break
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;;
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esac
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done
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}
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case $KERNEL in
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Linux) MATCH_BUILD="linux-amd64" ;;
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Darwin) MATCH_BUILD="darwin-amd64" ;;
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*)
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echo "platform not supported by this install script"
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exit 1
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;;
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esac
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for req in curl wget; do
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command_exists $req || {
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output "missing required $req binary"
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req_failed=1
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}
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done
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[ "$req_failed" == 1 ] && exit 1
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sh_c='sh -c'
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if [ "$CURRENT_USER" != 'root' ]; then
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if command_exists sudo; then
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sh_c='sudo -E sh -c'
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elif command_exists su; then
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sh_c='su -c'
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else
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output "Error: this installer needs the ability to run commands as root. We are unable to find either "sudo" or "su" available to make this happen."
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exit 1
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fi
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fi
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TMP=$(mktemp -d "${TMPDIR:-/tmp}/ctop.XXXXX")
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cd ${TMP}
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output "fetching latest release info"
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resp=$(curl -s https://api.github.com/repos/bcicen/ctop/releases/latest)
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output "fetching release checksums"
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checksum_url=$(extract_url sha256sums.txt "$resp")
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wget -q $checksum_url -O sha256sums.txt
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# skip if latest already installed
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cur_ctop=$(which ctop 2> /dev/null)
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if [[ -n "$cur_ctop" ]]; then
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cur_sum=$(sha256sum $cur_ctop | sed 's/ .*//')
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(grep -q $cur_sum sha256sums.txt) && {
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output "already up-to-date"
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exit 0
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}
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fi
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output "fetching latest ctop"
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url=$(extract_url $MATCH_BUILD "$resp")
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wget -q --show-progress $url
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(sha256sum -c --quiet --ignore-missing sha256sums.txt) || exit 1
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output "installing to /usr/local/bin"
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chmod +x ctop-*
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$sh_c "mv ctop-* /usr/local/bin/ctop"
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output "done!"
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