#!/bin/sh # safety subshell to avoid executing anything in case this script is not downloaded properly ( : "${GHCUP_INSTALL_BASE_PREFIX:=$HOME}" die() { (>&2 printf "\\033[0;31m%s\\033[0m\\n" "$1") exit 2 } edo() { "$@" || die "\"$*\" failed!" } eghcup() { if [ -z "${BOOTSTRAP_HASKELL_VERBOSE}" ] ; then edo ghcup "$@" else edo ghcup --verbose "$@" fi } echo echo "Welcome to Haskell!" echo echo "This will download and install the Glasgow Haskell Compiler (GHC) for " echo "the Haskell programming language, and the Cabal build tool." echo echo "It will add the 'cabal', 'ghc', and 'ghcup' executables to bin directory " echo "located at: " echo echo " $GHCUP_INSTALL_BASE_PREFIX/.ghcup/bin" echo echo "and create the environment file $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" echo "which you should source in your ~/.bashrc or similar to get the required" echo "PATH components." echo if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then printf "\\033[0;35m%s\\033[0m\\n" "To proceed with the ghcup installation press ENTER, to cancel press ctrl-c." printf "\\033[0;35m%s\\033[0m\\n" "Note that this script can be re-run at any given time." echo # Wait for user input to continue. # shellcheck disable=SC2034 read -r answer </dev/tty fi edo mkdir -p "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin if command -V "ghcup" >/dev/null 2>&1 ; then if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then eghcup upgrade fi else edo curl --silent https://gitlab.haskell.org/haskell/ghcup/raw/master/ghcup > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup edo chmod +x "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup cat <<-EOF > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env || die "Failed to create env file" export PATH="\$HOME/.cabal/bin:\${GHCUP_INSTALL_BASE_PREFIX:=\$HOME}/.ghcup/bin:\$PATH" EOF # shellcheck disable=SC1090 edo . "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env fi echo printf "\\033[0;35m%s\\033[0m\\n" "To install and run GHC you need the following dependencies:" echo " $(ghcup print-system-reqs)" echo if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then printf "\\033[0;35m%s\\033[0m\\n" "You may want to install these now, then press ENTER to proceed" printf "\\033[0;35m%s\\033[0m\\n" "or press ctrl-c to abort. Installation may take a while." echo # Wait for user input to continue. # shellcheck disable=SC2034 read -r answer </dev/tty fi eghcup --cache install eghcup set eghcup --cache install-cabal edo cabal new-update printf "\\033[0;35m%s\\033[0m\\n" "" printf "\\033[0;35m%s\\033[0m\\n" "Installation done!" printf "\\033[0;35m%s\\033[0m\\n" "" if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then echo "In order to run ghc and cabal, you need to adjust your PATH variable." echo "You may want to source '$GHCUP_INSTALL_BASE_PREFIX/.ghcup/env' in your shell" echo "configuration to do so (e.g. ~/.bashrc)." case $SHELL in */zsh) # login shell is zsh GHCUP_PROFILE_FILE="$HOME/.zshrc" MY_SHELL="zsh" ;; */bash) # login shell is bash if [ -f "$HOME/.bashrc" ] ; then # bashrc is not sourced by default, so assume it isn't if file does not exist GHCUP_PROFILE_FILE="$HOME/.bashrc" else GHCUP_PROFILE_FILE="$HOME/.bash_profile" fi MY_SHELL="bash" ;; */sh) # login shell is sh, but might be a symlink to bash or zsh if [ -n "${BASH}" ] ; then if [ -f "$HOME/.bashrc" ] ; then # bashrc is not sourced by default, so assume it isn't if file does not exist GHCUP_PROFILE_FILE="$HOME/.bashrc" else GHCUP_PROFILE_FILE="$HOME/.bash_profile" fi MY_SHELL="bash" elif [ -n "${ZSH_VERSION}" ] ; then GHCUP_PROFILE_FILE="$HOME/.zshrc" MY_SHELL="zsh" else exit 0 fi ;; *) exit 0 ;; esac printf "\\033[0;35m%s\\033[0m\\n" "" printf "\\033[0;35m%s\\033[0m\\n" "Detected ${MY_SHELL} shell on your system..." printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically add the required PATH variable to \"${GHCUP_PROFILE_FILE}\"" printf "\\033[0;35m%s\\033[0m\\n" "answer with YES, otherwise with NO and press ENTER." printf "\\033[0;35m%s\\033[0m\\n" "" while true; do read -r next_answer </dev/tty case $next_answer in [Yy]*) echo "[ -f \"\${GHCUP_INSTALL_BASE_PREFIX:=\$HOME}/.ghcup/env\" ] && source \"\${GHCUP_INSTALL_BASE_PREFIX:=\$HOME}/.ghcup/env\"" >> "${GHCUP_PROFILE_FILE}" printf "\\033[0;35m%s\\033[0m\\n" "OK! ${GHCUP_PROFILE_FILE} has been modified. Restart your terminal for the changes to take effect," printf "\\033[0;35m%s\\033[0m\\n" "or type \"source ${GHCUP_INSTALL_BASE_PREFIX}/.ghcup/env\" to apply them in your current terminal session." exit 0;; [Nn]*) exit 0;; *) echo "Please type YES or NO and press enter.";; esac done fi ) # vim: tabstop=4 shiftwidth=4 expandtab