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xnzac/get-ghcup.sh

Created March 29, 2023 10:52
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get-ghcup.haskell.org on Mar 29th 2023
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get-ghcup.sh
#!/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="0.1.19.2"
: "${GHCUP_BASE_URL:=https://downloads.haskell.org/~ghcup}"
export GHCUP_SKIP_UPDATE_CHECK=yes
: "${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 <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: ${arch}"
;;
esac
;;
"FreeBSD"|"freebsd")
case "${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 </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_NO_STACK}" ] ; then
return 0
elif [ -n "${BOOTSTRAP_HASKELL_INSTALL_NO_STACK_HOOK}" ] ; then
return 1
fi
if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
echo "-------------------------------------------------------------------------------"
warn "Do you want to enable better integration of stack with GHCup?"
warn "This means that stack won't install its own GHC versions, but uses GHCup's."
warn "For more information see:"
warn " https://docs.haskellstack.org/en/stable/yaml_configuration/#ghc-installation-customisation-experimental"
warn "If you want to keep stacks vanilla behavior, answer 'No'."
warn ""
warn "[Y] Yes [N] No [?] Help (default is \"Y\")."
warn ""
while true; do
read -r stack_answer </dev/tty
case $stack_answer in
[Yy]* | "")
return 2 ;;
[Nn]*)
return 1 ;;
*)
echo "Possible choices are:"
echo
echo "Y - Yes, enable better integration (default)"
echo "N - No, keep stacks vanilla behavior"
echo
echo "Please make your choice and press ENTER."
;;
esac
done
else
return 2
fi
unset stack_answer
}
find_shell
echo
echo "Welcome to Haskell!"
echo
echo "This script can download and install the following binaries:"
echo " * ghcup - The Haskell toolchain installer"
echo " * ghc - The Glasgow Haskell Compiler"
echo " * cabal - The Cabal build tool for managing Haskell software"
echo " * stack - A cross-platform program for developing Haskell projects (similar to cabal)"
echo " * hls - (optional) A language server for developers to integrate with their editor/IDE"
echo
if [ -z "${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 $ask_stack_answer in
1)
(_eghcup --cache install stack) || die "Stack installation failed"
;;
2)
(_eghcup --cache install stack) || die "Stack installation failed"
edo mkdir -p "${STACK_ROOT:-$HOME/.stack}"/hooks
hook_exe="${STACK_ROOT:-$HOME/.stack}"/hooks/ghc-install.sh
hook_url="https://www.haskell.org/ghcup/sh/hooks/stack/ghc-install.sh"
if [ -e "${hook_exe}" ] ; then
warn "$hook_exe already exists, skipping hook installation."
warn "If you want to reinstall the hook, delete it manually and re-run"
warn "this script!"
else
case "${BOOTSTRAP_HASKELL_DOWNLOADER}" in
"curl")
# shellcheck disable=SC2086
edo curl -Lf ${GHCUP_CURL_OPTS} "${hook_url}" > "${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
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