#!/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_STACK - whether to install latest stack
# * 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="0.1.18.0"
: "${GHCUP_BASE_URL:=https://downloads.haskell.org/~ghcup}"
export GHCUP_SKIP_UPDATE_CHECK=yes
: "${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 "\"$*\" failed!"
}
eghcup() {
edo _eghcup "$@"
}
_eghcup() {
if [ -n "${BOOTSTRAP_HASKELL_YAML}" ] ; then
args="-s ${BOOTSTRAP_HASKELL_YAML}"
fi
if [ -z "${BOOTSTRAP_HASKELL_VERBOSE}" ] ; then
# shellcheck disable=SC2086
"${GHCUP_BIN}/ghcup" ${args} "$@"
else
# shellcheck disable=SC2086
"${GHCUP_BIN}/ghcup" ${args} --verbose "$@"
fi
}
ecabal() {
edo _ecabal "$@"
}
_ecabal() {
if [ -n "${CABAL_BIN}" ] ; then
"${CABAL_BIN}" "$@"
else
# shellcheck disable=SC2086
"${GHCUP_BIN}/cabal" "$@"
fi
}
_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 <tool> <version>"
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: <file>
# @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: ${arch}"
;;
esac
;;
"FreeBSD"|"freebsd")
if freebsd-version | grep -E '^12.*' ; then
freebsd_ver=12
elif freebsd-version | grep -E '^13.*' ; then
freebsd_ver=13
else
die "Unsupported FreeBSD version! Please report a bug at https://gitlab.haskell.org/haskell/ghcup-hs/-/issues"
fi
case "${arch}" in
x86_64|amd64)
;;
i*86)
die "i386 currently not supported!"
;;
*) die "Unknown architecture: ${arch}"
;;
esac
_url=${GHCUP_BASE_URL}/${ghver}/x86_64-freebsd${freebsd_ver}-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 config set downloader Curl
;;
"wget")
eghcup 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 $SHELL in
*/zsh) # login shell is zsh
GHCUP_PROFILE_FILE="$HOME/.zshrc"
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 </dev/tty
else
return 0
fi
case $bashrc_answer in
[Pp]* | "")
return 1
;;
[Aa]*)
return 2
;;
[Nn]*)
return 0;;
*)
echo "Possible choices are:"
echo
echo "P - Yes, prepend to PATH, taking precedence (default)"
echo "A - Yes, append to PATH"
echo "N - No, don't mess with my configuration"
echo
echo "Please make your choice and press ENTER."
;;
esac
done
unset bashrc_answer
}
# Needs 'find_shell' to be called beforehand.
adjust_bashrc() {
case $1 in
1)
cat <<-EOF > "${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
;;
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/tty
case $mingw_answer in
[Yy]* | "")
return 1 ;;
[Nn]*)
return 0 ;;
*)
echo "Possible choices are:"
echo
echo "Y - Yes, create a cabal.config with pre-set paths to msys2/mingw64 (default)"
echo "N - No, leave the current/default cabal config untouched"
echo
echo "Please make your choice and press ENTER."
;;
esac
done
else
return 0
fi
;;
esac
unset mingw_answer
return 0
}
do_cabal_config_init() {
case "${plat}" in
MSYS*|MINGW*)
case $1 in
1)
adjust_cabal_config
;;
0)
warn "Make sure that your global cabal.config references the correct mingw64 paths (extra-prog-path, extra-include-dirs and extra-lib-dirs)."
warn "And set the environment variable GHCUP_MSYS2 to the root path of your msys2 installation."
sleep 5
return ;;
*) ;;
esac
esac
}
ask_hls() {
if [ -n "${BOOTSTRAP_HASKELL_INSTALL_HLS}" ] ; then
return 1
fi
if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
echo "-------------------------------------------------------------------------------"
warn "Do you want to install haskell-language-server (HLS)?"
warn "HLS is a language-server that provides IDE-like functionality"
warn "and can integrate with different editors, such as Vim, Emacs, VS Code, Atom, ..."
warn "Also see https://haskell-language-server.readthedocs.io/en/stable/"
warn ""
warn "[Y] Yes [N] No [?] Help (default is \"N\")."
warn ""
while true; do
read -r hls_answer </dev/tty
case $hls_answer in
[Yy]*)
return 1
;;
[Nn]* | "")
return 0
;;
*)
echo "Possible choices are:"
echo
echo "Y - Yes, install the haskell-langauge-server"
echo "N - No, don't install anything more (default)"
echo
echo "Please make your choice and press ENTER."
;;
esac
done
else
return 0
fi
unset hls_answer
}
ask_stack() {
if [ -n "${BOOTSTRAP_HASKELL_INSTALL_STACK}" ] ; then
return 1
fi
if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
echo "-------------------------------------------------------------------------------"
warn "Do you want to install stack?"
warn "Stack is a haskell build tool similar to cabal that is used by some projects."
warn "Also see https://docs.haskellstack.org/"
warn ""
warn "[Y] Yes [N] No [?] Help (default is \"N\")."
warn ""
while true; do
read -r stack_answer </dev/tty
case $stack_answer in
[Yy]*)
return 1 ;;
[Nn]* | "")
return 0 ;;
*)
echo "Possible choices are:"
echo
echo "Y - Yes, install stack"
echo "N - No, don't install anything more (default)"
echo
echo "Please make your choice and press ENTER."
;;
esac
done
else
return 0
fi
unset stack_answer
}
find_shell
echo
echo "Welcome to Haskell!"
echo
echo "This script can download and install the following binaries:"
echo " * ghcup - The Haskell toolchain installer"
echo " * ghc - The Glasgow Haskell Compiler"
echo " * cabal - The Cabal build tool for managing Haskell software"
echo " * stack - (optional) A cross-platform program for developing Haskell projects"
echo " * hls - (optional) A language server for developers to integrate with their editor/IDE"
echo
if [ -z "${GHCUP_USE_XDG_DIRS}" ] ; then
echo "ghcup installs only into the following directory,"
echo "which can be removed anytime:"
case "${plat}" in
MSYS*|MINGW*)
echo " $(cygpath -w "$GHCUP_DIR")"
;;
*)
echo " $GHCUP_DIR"
;;
esac
else
echo "ghcup installs into XDG directories as long as"
echo "'GHCUP_USE_XDG_DIRS' is set."
fi
echo
if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
warn "Press ENTER to proceed or ctrl-c to abort."
warn "Note that this script can be re-run at any given time."
# Wait for user input to continue.
# shellcheck disable=SC2034
read -r answer </dev/tty
fi
ask_bashrc
ask_bashrc_answer=$?
ask_cabal_config_init
ask_cabal_config_init_answer=$?
if [ -z "${BOOTSTRAP_HASKELL_MINIMAL}" ] ; then
ask_hls
ask_hls_answer=$?
ask_stack
ask_stack_answer=$?
fi
edo mkdir -p "${GHCUP_BIN}"
if command -V "ghcup" >/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 </dev/tty
fi
if [ -z "${BOOTSTRAP_HASKELL_MINIMAL}" ] ; then
eghcup --cache install ghc "${BOOTSTRAP_HASKELL_GHC_VERSION}"
eghcup set ghc "${BOOTSTRAP_HASKELL_GHC_VERSION}"
eghcup --cache install cabal "${BOOTSTRAP_HASKELL_CABAL_VERSION}"
do_cabal_config_init $ask_cabal_config_init_answer
edo cabal update --ignore-project
else # don't install ghc and cabal
case "${plat}" in
MSYS*|MINGW*)
# need to bootstrap cabal to initialize config on windows
# we'll remove it afterwards
tmp_dir="$(mktemp -d)"
eghcup --cache install cabal -i "${tmp_dir}" "${BOOTSTRAP_HASKELL_CABAL_VERSION}"
CABAL_BIN="${tmp_dir}/cabal" do_cabal_config_init $ask_cabal_config_init_answer
rm "${tmp_dir}/cabal"
unset tmp_dir
;;
*)
;;
esac
fi
case $ask_hls_answer in
1)
_eghcup --cache install hls || warn "HLS installation failed, continuing anyway"
;;
*) ;;
esac
case $ask_stack_answer in
1)
_eghcup --cache install stack || warn "Stack installation failed, continuing anyway"
;;
*) ;;
esac
adjust_bashrc $ask_bashrc_answer
_done
)
# vim: tabstop=4 shiftwidth=4 expandtab