#!/bin/sh # This script downloads the 'ghcup' binary into '~/.ghcup/bin/' and then runs an interactive # installation that lets you choose various options. Below is a list of environment variables # that affect the installation procedure. # Main settings: # * BOOTSTRAP_HASKELL_NONINTERACTIVE - any nonzero value for noninteractive installation # * BOOTSTRAP_HASKELL_NO_UPGRADE - any nonzero value to not trigger the upgrade # * BOOTSTRAP_HASKELL_MINIMAL - any nonzero value to only install ghcup # * GHCUP_USE_XDG_DIRS - any nonzero value to respect The XDG Base Directory Specification # * BOOTSTRAP_HASKELL_VERBOSE - any nonzero value for more verbose installation # * BOOTSTRAP_HASKELL_GHC_VERSION - the ghc version to install # * BOOTSTRAP_HASKELL_CABAL_VERSION - the cabal version to install # * BOOTSTRAP_HASKELL_INSTALL_NO_STACK - disable installation of stack # * BOOTSTRAP_HASKELL_INSTALL_NO_STACK_HOOK - disable installation stack ghcup hook # * BOOTSTRAP_HASKELL_INSTALL_HLS - whether to install latest hls # * BOOTSTRAP_HASKELL_ADJUST_BASHRC - whether to adjust PATH in bashrc (prepend) # * BOOTSTRAP_HASKELL_ADJUST_CABAL_CONFIG - whether to adjust mingw paths in cabal.config on windows # * BOOTSTRAP_HASKELL_DOWNLOADER - which downloader to use (default: curl) # * GHCUP_BASE_URL - the base url for ghcup binary download (use this to overwrite https://downloads.haskell.org/~ghcup with a mirror) # License: LGPL-3.0 # safety subshell to avoid executing anything in case this script is not downloaded properly ( plat="$(uname -s)" arch=$(uname -m) ghver="0.1.19.1" : "${GHCUP_BASE_URL:=https://downloads.haskell.org/~ghcup}" export GHCUP_SKIP_UPDATE_CHECK=yes : "${BOOTSTRAP_HASKELL_DOWNLOADER:=curl}" case "${plat}" in MSYS*|MINGW*) : "${GHCUP_INSTALL_BASE_PREFIX:=/c}" GHCUP_DIR=$(cygpath -u "${GHCUP_INSTALL_BASE_PREFIX}/ghcup") GHCUP_BIN=$(cygpath -u "${GHCUP_INSTALL_BASE_PREFIX}/ghcup/bin") : "${GHCUP_MSYS2:=${GHCUP_DIR}/msys64}" ;; *) : "${GHCUP_INSTALL_BASE_PREFIX:=$HOME}" if [ -n "${GHCUP_USE_XDG_DIRS}" ] ; then GHCUP_DIR=${XDG_DATA_HOME:=$HOME/.local/share}/ghcup GHCUP_BIN=${XDG_BIN_HOME:=$HOME/.local/bin} else GHCUP_DIR=${GHCUP_INSTALL_BASE_PREFIX}/.ghcup GHCUP_BIN=${GHCUP_INSTALL_BASE_PREFIX}/.ghcup/bin fi ;; esac : "${BOOTSTRAP_HASKELL_GHC_VERSION:=recommended}" : "${BOOTSTRAP_HASKELL_CABAL_VERSION:=recommended}" die() { if [ -n "${NO_COLOR}" ] ; then (>&2 printf "%s\\n" "$1") else (>&2 printf "\\033[0;31m%s\\033[0m\\n" "$1") fi exit 2 } warn() { if [ -n "${NO_COLOR}" ] ; then printf "%s\\n" "$1" else case "${plat}" in MSYS*|MINGW*) # shellcheck disable=SC3037 echo -e "\\033[0;35m$1\\033[0m" ;; *) printf "\\033[0;35m%s\\033[0m\\n" "$1" ;; esac fi } yellow() { if [ -n "${NO_COLOR}" ] ; then printf "%s\\n" "$1" else case "${plat}" in MSYS*|MINGW*) # shellcheck disable=SC3037 echo -e "\\033[0;33m$1\\033[0m" ;; *) printf "\\033[0;33m%s\\033[0m\\n" "$1" ;; esac fi } green() { if [ -n "${NO_COLOR}" ] ; then printf "%s\\n" "$1" else case "${plat}" in MSYS*|MINGW*) # shellcheck disable=SC3037 echo -e "\\033[0;32m$1\\033[0m" ;; *) printf "\\033[0;32m%s\\033[0m\\n" "$1" ;; esac fi } edo() { "$@" || die "\"$*\" failed!" } eghcup_raw() { "${GHCUP_BIN}/ghcup" "$@" || die "\"ghcup $*\" failed!" } eghcup() { _eghcup "$@" } _eghcup() { if [ -n "${BOOTSTRAP_HASKELL_YAML}" ] ; then args="-s ${BOOTSTRAP_HASKELL_YAML} --metadata-fetching-mode=Strict" else args="--metadata-fetching-mode=Strict" fi if [ -z "${BOOTSTRAP_HASKELL_VERBOSE}" ] ; then # shellcheck disable=SC2086 "${GHCUP_BIN}/ghcup" ${args} "$@" || die "\"ghcup ${args} $*\" failed!" else # shellcheck disable=SC2086 "${GHCUP_BIN}/ghcup" ${args} --verbose "$@" || die "\"ghcup ${args} --verbose $*\" failed!" fi } _ecabal() { # shellcheck disable=SC2317 if [ -n "${CABAL_BIN}" ] ; then "${CABAL_BIN}" "$@" else # shellcheck disable=SC2086 "${GHCUP_BIN}/cabal" "$@" fi } ecabal() { _ecabal "$@" || die "\"cabal $*\" failed!" } _done() { echo echo "===============================================================================" case "${plat}" in MSYS*|MINGW*) green green "All done!" green green "In a new powershell or cmd.exe session, now you can..." green green "Start a simple repl via:" green " ghci" green green "Start a new haskell project in the current directory via:" green " cabal init --interactive" green green "Install other GHC versions and tools via:" green " ghcup list" green " ghcup install " green green "To install system libraries and update msys2/mingw64," green "open the \"Mingw haskell shell\"" green "and the \"Mingw package management docs\"" green "desktop shortcuts." green green "If you are new to Haskell, check out https://www.haskell.org/ghcup/steps/" ;; *) green green "All done!" green green "To start a simple repl, run:" green " ghci" green green "To start a new haskell project in the current directory, run:" green " cabal init --interactive" green green "To install other GHC versions and tools, run:" green " ghcup tui" green green "If you are new to Haskell, check out https://www.haskell.org/ghcup/steps/" ;; esac exit 0 } # @FUNCTION: posix_realpath # @USAGE: # @DESCRIPTION: # Portably gets the realpath and prints it to stdout. # This was initially inspired by # https://gist.github.com/tvlooy/cbfbdb111a4ebad8b93e # and # https://stackoverflow.com/a/246128 # # If the file does not exist, just prints it appended to the current directory. # @STDOUT: realpath of the given file posix_realpath() { [ -z "$1" ] && die "Internal error: no argument given to posix_realpath" current_loop=0 max_loops=50 mysource=$1 # readlink and '[ -h $path ]' behave different wrt '/sbin/' and '/sbin', so we strip it mysource=${mysource%/} [ -z "${mysource}" ] && mysource=$1 while [ -h "${mysource}" ]; do current_loop=$((current_loop+1)) mydir="$( cd -P "$( dirname "${mysource}" )" > /dev/null 2>&1 && pwd )" mysource="$(readlink "${mysource}")" [ "${mysource%"${mysource#?}"}"x != '/x' ] && mysource="${mydir%/}/${mysource}" if [ ${current_loop} -gt ${max_loops} ] ; then (>&2 echo "${1}: Too many levels of symbolic links") echo "$1" return fi done mydir="$( cd -P "$( dirname "${mysource}" )" > /dev/null 2>&1 && pwd )" # TODO: better distinguish between "does not exist" and "permission denied" if [ -z "${mydir}" ] ; then (>&2 echo "${1}: Permission denied") echo "$(pwd)/$1" else echo "${mydir%/}/$(basename "${mysource}")" fi unset current_loop max_loops mysource mydir } download_ghcup() { case "${plat}" in "linux"|"Linux") case "${arch}" in x86_64|amd64) # we could be in a 32bit docker container, in which # case uname doesn't give us what we want if [ "$(getconf LONG_BIT)" = "32" ] ; then _url=${GHCUP_BASE_URL}/${ghver}/i386-linux-ghcup-${ghver} elif [ "$(getconf LONG_BIT)" = "64" ] ; then _url=${GHCUP_BASE_URL}/${ghver}/x86_64-linux-ghcup-${ghver} else die "Unknown long bit size: $(getconf LONG_BIT)" fi ;; i*86) _url=${GHCUP_BASE_URL}/${ghver}/i386-linux-ghcup-${ghver} ;; armv7*|*armv8l*) _url=${GHCUP_BASE_URL}/${ghver}/armv7-linux-ghcup-${ghver} ;; aarch64|arm64) # we could be in a 32bit docker container, in which # case uname doesn't give us what we want if [ "$(getconf LONG_BIT)" = "32" ] ; then _url=${GHCUP_BASE_URL}/${ghver}/armv7-linux-ghcup-${ghver} elif [ "$(getconf LONG_BIT)" = "64" ] ; then _url=${GHCUP_BASE_URL}/${ghver}/aarch64-linux-ghcup-${ghver} else die "Unknown long bit size: $(getconf LONG_BIT)" fi ;; *) die "Unknown architecture: ${arch}" ;; esac ;; "FreeBSD"|"freebsd") case "${arch}" in x86_64|amd64) ;; i*86) die "i386 currently not supported!" ;; *) die "Unknown architecture: ${arch}" ;; esac _url=${GHCUP_BASE_URL}/${ghver}/x86_64-portbld-freebsd-ghcup-${ghver} ;; "Darwin"|"darwin") case "${arch}" in x86_64|amd64) _url=${GHCUP_BASE_URL}/${ghver}/x86_64-apple-darwin-ghcup-${ghver} ;; aarch64|arm64|armv8l) _url=${GHCUP_BASE_URL}/${ghver}/aarch64-apple-darwin-ghcup-${ghver} ;; i*86) die "i386 currently not supported!" ;; *) die "Unknown architecture: ${arch}" ;; esac ;; MSYS*|MINGW*) case "${arch}" in x86_64|amd64) _url=${GHCUP_BASE_URL}/${ghver}/x86_64-mingw64-ghcup-${ghver}.exe ;; *) die "Unknown architecture: ${arch}" ;; esac ;; *) die "Unknown platform: ${plat}" ;; esac case "${plat}" in MSYS*|MINGW*) case "${BOOTSTRAP_HASKELL_DOWNLOADER}" in "curl") # shellcheck disable=SC2086 edo curl -Lf ${GHCUP_CURL_OPTS} "${_url}" > "${GHCUP_BIN}"/ghcup.exe ;; "wget") # shellcheck disable=SC2086 edo wget -O /dev/stdout ${GHCUP_WGET_OPTS} "${_url}" > "${GHCUP_BIN}"/ghcup.exe ;; *) die "Unknown downloader: ${BOOTSTRAP_HASKELL_DOWNLOADER}" ;; esac edo chmod +x "${GHCUP_BIN}"/ghcup.exe ;; *) case "${BOOTSTRAP_HASKELL_DOWNLOADER}" in "curl") # shellcheck disable=SC2086 edo curl -Lf ${GHCUP_CURL_OPTS} "${_url}" > "${GHCUP_BIN}"/ghcup ;; "wget") # shellcheck disable=SC2086 edo wget -O /dev/stdout ${GHCUP_WGET_OPTS} "${_url}" > "${GHCUP_BIN}"/ghcup ;; *) die "Unknown downloader: ${BOOTSTRAP_HASKELL_DOWNLOADER}" ;; esac edo chmod +x "${GHCUP_BIN}"/ghcup ;; esac edo mkdir -p "${GHCUP_DIR}" # we may overwrite this in adjust_bashrc cat <<-EOF > "${GHCUP_DIR}"/env || die "Failed to create env file" case ":\$PATH:" in *:"${GHCUP_BIN}":*) ;; *) export PATH="${GHCUP_BIN}:\$PATH" ;; esac case ":\$PATH:" in *:"\$HOME/.cabal/bin":*) ;; *) export PATH="\$HOME/.cabal/bin:\$PATH" ;; esac EOF # shellcheck disable=SC1090 edo . "${GHCUP_DIR}"/env case "${BOOTSTRAP_HASKELL_DOWNLOADER}" in "curl") eghcup_raw config set downloader Curl ;; "wget") eghcup_raw config set downloader Wget ;; *) die "Unknown downloader: ${BOOTSTRAP_HASKELL_DOWNLOADER}" ;; esac eghcup upgrade } # Figures out the users login shell and sets # GHCUP_PROFILE_FILE and MY_SHELL variables. find_shell() { case $SHELL in */zsh) # login shell is zsh if [ -n "$ZDOTDIR" ]; then GHCUP_PROFILE_FILE="$ZDOTDIR/.zshrc" else GHCUP_PROFILE_FILE="$HOME/.zshrc" fi MY_SHELL="zsh" ;; */bash) # login shell is bash GHCUP_PROFILE_FILE="$HOME/.bashrc" MY_SHELL="bash" ;; */sh) # login shell is sh, but might be a symlink to bash or zsh if [ -n "${BASH}" ] ; then GHCUP_PROFILE_FILE="$HOME/.bashrc" MY_SHELL="bash" elif [ -n "${ZSH_VERSION}" ] ; then GHCUP_PROFILE_FILE="$HOME/.zshrc" MY_SHELL="zsh" else return fi ;; */fish) # login shell is fish GHCUP_PROFILE_FILE="$HOME/.config/fish/config.fish" MY_SHELL="fish" ;; *) return ;; esac } # Ask user if they want to adjust the bashrc. ask_bashrc() { if [ -n "${BOOTSTRAP_HASKELL_ADJUST_BASHRC}" ] ; then return 1 elif [ -z "${MY_SHELL}" ] ; then return 0 fi while true; do if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then echo "-------------------------------------------------------------------------------" warn "" warn "Detected ${MY_SHELL} shell on your system..." warn "Do you want ghcup to automatically add the required PATH variable to \"${GHCUP_PROFILE_FILE}\"?" warn "" warn "[P] Yes, prepend [A] Yes, append [N] No [?] Help (default is \"P\")." warn "" read -r bashrc_answer "${GHCUP_DIR}"/env || die "Failed to create env file" case ":\$PATH:" in *:"${GHCUP_BIN}":*) ;; *) export PATH="${GHCUP_BIN}:\$PATH" ;; esac case ":\$PATH:" in *:"\$HOME/.cabal/bin":*) ;; *) export PATH="\$HOME/.cabal/bin:\$PATH" ;; esac EOF ;; 2) cat <<-EOF > "${GHCUP_DIR}"/env || die "Failed to create env file" case ":\$PATH:" in *:"\$HOME/.cabal/bin":*) ;; *) export PATH="\$PATH:\$HOME/.cabal/bin" ;; esac case ":\$PATH:" in *:"${GHCUP_BIN}":*) ;; *) export PATH="\$PATH:${GHCUP_BIN}" ;; esac EOF ;; *) ;; esac case $1 in 1 | 2) case $MY_SHELL in "") warn_path "Couldn't figure out login shell!" return ;; fish) mkdir -p "${GHCUP_PROFILE_FILE%/*}" sed -i -e '/# ghcup-env$/ s/^#*/#/' "$(posix_realpath "${GHCUP_PROFILE_FILE}")" case $1 in 1) printf "\n%s" "set -q GHCUP_INSTALL_BASE_PREFIX[1]; or set GHCUP_INSTALL_BASE_PREFIX \$HOME ; set -gx PATH \$HOME/.cabal/bin $GHCUP_BIN \$PATH # ghcup-env" >> "${GHCUP_PROFILE_FILE}" ;; 2) printf "\n%s" "set -q GHCUP_INSTALL_BASE_PREFIX[1]; or set GHCUP_INSTALL_BASE_PREFIX \$HOME ; set -gx PATH \$HOME/.cabal/bin \$PATH $GHCUP_BIN # ghcup-env" >> "${GHCUP_PROFILE_FILE}" ;; esac ;; bash) sed -i -e '/# ghcup-env$/ s/^#*/#/' "$(posix_realpath "${GHCUP_PROFILE_FILE}")" printf "\n%s" "[ -f \"${GHCUP_DIR}/env\" ] && source \"${GHCUP_DIR}/env\" # ghcup-env" >> "${GHCUP_PROFILE_FILE}" case "${plat}" in "Darwin"|"darwin") if ! grep -q "ghcup-env" "${HOME}/.bash_profile" ; then printf "\n%s" "[[ -f ~/.bashrc ]] && source ~/.bashrc # ghcup-env" >> "${HOME}/.bash_profile" fi ;; MSYS*|MINGW*) if [ ! -e "${HOME}/.bash_profile" ] ; then echo '# generated by ghcup' > "${HOME}/.bash_profile" echo 'test -f ~/.profile && . ~/.profile' >> "${HOME}/.bash_profile" echo 'test -f ~/.bashrc && . ~/.bashrc' >> "${HOME}/.bash_profile" fi ;; esac ;; zsh) sed -i -e '/# ghcup-env$/ s/^#*/#/' "$(posix_realpath "${GHCUP_PROFILE_FILE}")" printf "\n%s" "[ -f \"${GHCUP_DIR}/env\" ] && source \"${GHCUP_DIR}/env\" # ghcup-env" >> "${GHCUP_PROFILE_FILE}" ;; esac echo echo "===============================================================================" echo warn "OK! ${GHCUP_PROFILE_FILE} has been modified. Restart your terminal for the changes to take effect," warn "or type \"source ${GHCUP_DIR}/env\" to apply them in your current terminal session." return ;; *) warn_path ;; esac } warn_path() { echo echo "===============================================================================" echo [ -n "$1" ] && warn "$1" yellow "In order to run ghc and cabal, you need to adjust your PATH variable." yellow "To do so, you may want to run 'source $GHCUP_DIR/env' in your current terminal" yellow "session as well as your shell configuration (e.g. ~/.bashrc)." } adjust_cabal_config() { if [ -n "${CABAL_DIR}" ] ; then cabal_bin="${CABAL_DIR}/bin" else cabal_bin="$HOME/AppData/Roaming/cabal/bin" fi ecabal user-config -a "extra-prog-path: $(cygpath -w "$GHCUP_BIN"), $(cygpath -w "$cabal_bin"), $(cygpath -w "$GHCUP_MSYS2"/mingw64/bin), $(cygpath -w "$GHCUP_MSYS2"/usr/bin)" -a "extra-include-dirs: $(cygpath -w "$GHCUP_MSYS2"/mingw64/include)" -a "extra-lib-dirs: $(cygpath -w "$GHCUP_MSYS2"/mingw64/lib)" -f init } ask_cabal_config_init() { case "${plat}" in MSYS*|MINGW*) if [ -n "${BOOTSTRAP_HASKELL_ADJUST_CABAL_CONFIG}" ] ; then return 1 fi if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then echo "-------------------------------------------------------------------------------" warn "Create an initial cabal.config including relevant msys2 paths (recommended)?" warn "[Y] Yes [N] No [?] Help (default is \"Y\")." echo while true; do read -r mingw_answer /dev/null 2>&1 ; then if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then ( _eghcup upgrade ) || download_ghcup fi else download_ghcup fi echo if [ -n "${BOOTSTRAP_HASKELL_YAML}" ] ; then (>&2 ghcup -s "${BOOTSTRAP_HASKELL_YAML}" tool-requirements) ; else (>&2 ghcup tool-requirements) ; fi echo if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then warn "Press ENTER to proceed or ctrl-c to abort." warn "Installation may take a while." echo # Wait for user input to continue. # shellcheck disable=SC2034 read -r answer "${hook_exe}" ;; "wget") # shellcheck disable=SC2086 edo wget -O /dev/stdout ${GHCUP_WGET_OPTS} "${hook_url}" > "${hook_exe}" ;; *) die "Unknown downloader: ${BOOTSTRAP_HASKELL_DOWNLOADER}" ;; esac edo chmod +x "${hook_exe}" fi ;; *) ;; esac adjust_bashrc $ask_bashrc_answer _done ) # vim: tabstop=4 shiftwidth=4 expandtab