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Create install.sh
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#!/usr/bin/env bash
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#
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# Adapted from https://croc.schollz.com
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#
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# croc Installer Script
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#
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# Homepage: https://schollz.com/software/croc
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# Issues: https://github.com/schollz/croc/issues
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# Requires: bash, mv, rm, tr, type, curl/wget, base64, sudo (if not root)
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# tar (or unzip on OSX and Windows), gpg (optional verification)
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#
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# This script safely installs croc into your PATH (which may require
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# password authorization).
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#
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# In automated environments, you may want to run as root.
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# If using curl, we recommend using the -fsSL flags.
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#
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# This should work on Mac, Linux, and BSD systems, and
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# hopefully Windows with Cygwin. Please open an issue if
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# you notice any bugs.
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#
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# [[ $- = *i* ]] && echo "Don't source this script!" && return 10
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install_croc()
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{
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trap 'echo -e "Aborted, error $? in command: $BASH_COMMAND"; trap ERR; exit 1' ERR
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install_path="/usr/local/bin"
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croc_os="unsupported"
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croc_arch="unknown"
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croc_arm=""
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croc_version="4.0.4"
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# Termux on Android has $PREFIX set which already ends with /usr
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if [[ -n "$ANDROID_ROOT" && -n "$PREFIX" ]]; then
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install_path="$PREFIX/bin"
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fi
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# Fall back to /usr/bin if necessary
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if [[ ! -d $install_path ]]; then
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install_path="/usr/bin"
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fi
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# Not every platform has or needs sudo (https://termux.com/linux.html)
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((EUID)) && [[ -z "$ANDROID_ROOT" ]] && sudo_cmd="sudo"
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#########################
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# Which OS and version? #
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#########################
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croc_bin="croc"
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croc_dl_ext=".tar.gz"
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# NOTE: `uname -m` is more accurate and universal than `arch`
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# See https://en.wikipedia.org/wiki/Uname
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unamem="$(uname -m)"
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if [[ $unamem == *aarch64* ]]; then
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croc_arch="ARM64"
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elif [[ $unamem == *64* ]]; then
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croc_arch="64bit"
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elif [[ $unamem == *86* ]]; then
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croc_arch="32bit"
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elif [[ $unamem == *armv5* ]]; then
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croc_arch="ARM"
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else
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echo "Aborted, unsupported or unknown architecture: $unamem"
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return 2
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fi
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unameu="$(tr '[:lower:]' '[:upper:]' <<<$(uname))"
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if [[ $unameu == *DARWIN* ]]; then
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croc_os="macOS"
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vers=$(sw_vers)
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version=${vers##*ProductVersion:}
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IFS='.' read OSX_MAJOR OSX_MINOR _ <<<"$version"
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# # Major
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# if ((OSX_MAJOR < 10)); then
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# echo "Aborted, unsupported OS X version (9-)"
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# return 3
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# fi
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# if ((OSX_MAJOR > 10)); then
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# echo "Aborted, unsupported OS X version (11+)"
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# return 4
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# fi
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# # Minor
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# if ((OSX_MINOR < 5)); then
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# echo "Aborted, unsupported OS X version (10.5-)"
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# return 5
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# fi
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elif [[ $unameu == *LINUX* ]]; then
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croc_os="Linux"
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elif [[ $unameu == *FREEBSD* ]]; then
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croc_os="freebsd"
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elif [[ $unameu == *NETBSD* ]]; then
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croc_os="NetBSD"
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elif [[ $unameu == *OPENBSD* ]]; then
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croc_os="OpenBSD"
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elif [[ $unameu == *WIN* || $unameu == MSYS* ]]; then
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# Should catch cygwin
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sudo_cmd=""
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croc_os="Windows"
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croc_dl_ext=".zip"
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croc_bin=$croc_bin.exe
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else
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echo "Aborted, unsupported or unknown os: $uname"
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return 6
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fi
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croc_file="croc_${croc_version}_${croc_os}-${croc_arch}${croc_dl_ext}"
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########################
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# Download and extract #
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########################
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croc_url="https://github.com/schollz/croc/releases/download/v${croc_version}/${croc_file}"
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echo "Downloading croc v${croc_version} (${croc_os} ${croc_arch})..."
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type -p gpg >/dev/null 2>&1 && gpg=1 || gpg=0
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# Use $PREFIX for compatibility with Termux on Android
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dl="$PREFIX/tmp/$croc_file"
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rm -rf -- "$dl"
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if type -p curl >/dev/null 2>&1; then
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curl -fsSL "$croc_url" -o "$dl"
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elif type -p wget >/dev/null 2>&1; then
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wget --quiet "$croc_url" -O "$dl"
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else
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echo "Aborted, could not find curl or wget"
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return 7
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fi
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echo "Extracting..."
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case "$croc_file" in
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*.zip) unzip -o "$dl" "$croc_bin" -d "$PREFIX/tmp/" ;;
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*.tar.gz) tar -xzf "$dl" -C "$PREFIX/tmp/" "$croc_bin" ;;
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esac
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chmod +x "$PREFIX/tmp/$croc_bin"
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# Back up existing croc, if any found in path
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if croc_path="$(type -p "$croc_bin")"; then
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croc_backup="${croc_path}_old"
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echo "Backing up $croc_path to $croc_backup"
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echo "(Password may be required.)"
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$sudo_cmd mv "$croc_path" "$croc_backup"
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fi
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echo "Putting croc in $install_path (may require password)"
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$sudo_cmd mv "$PREFIX/tmp/$croc_bin" "$install_path/$croc_bin"
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if setcap_cmd=$(PATH+=$PATH:/sbin type -p setcap); then
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$sudo_cmd $setcap_cmd cap_net_bind_service=+ep "$install_path/$croc_bin"
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fi
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$sudo_cmd rm -- "$dl"
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# check installation
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$croc_bin -version
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echo "Successfully installed"
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trap ERR
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return 0
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}
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install_croc "$@"
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