#!/bin/sh
# safety subshell to avoid executing anything in case this script is not downloaded properly
(
: "${GHCUP_INSTALL_BASE_PREFIX:=$HOME}"
: "${BOOTSTRAP_HASKELL_GHC_VERSION:=recommended}"
: "${BOOTSTRAP_HASKELL_CABAL_VERSION:=recommended}"
die() {
(>&2 printf "\\033[0;31m%s\\033[0m\\n" "$1")
exit 2
}
edo()
{
"$@" || die "\"$*\" failed!"
}
eghcup() {
edo _eghcup "$@"
}
_eghcup() {
if [ -z "${BOOTSTRAP_HASKELL_VERBOSE}" ] ; then
ghcup "$@"
else
ghcup --verbose "$@"
fi
}
download_ghcup() {
_plat="$(uname -s)"
_arch=$(uname -m)
_ghver="0.1.8"
_base_url="https://downloads.haskell.org/~ghcup"
case "${_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=${_base_url}/${_ghver}/i386-linux-ghcup-${_ghver}
elif [ "$(getconf LONG_BIT)" = "64" ] ; then
_url=${_base_url}/${_ghver}/x86_64-linux-ghcup-${_ghver}
else
die "Unknown long bit size: $(getconf LONG_BIT)"
fi
;;
i*86)
_url=${_base_url}/${_ghver}/i386-linux-ghcup-${_ghver}
;;
*) die "Unknown architecture: ${_arch}"
;;
esac
;;
"FreeBSD"|"freebsd")
case "${_arch}" in
x86_64|amd64)
;;
i*86)
die "i386 currently not supported!"
;;
*) die "Unknown architecture: ${_arch}"
;;
esac
_url=${_base_url}/${_ghver}/x86_64-portbld-freebsd-ghcup-${_ghver}
;;
"Darwin"|"darwin")
case "${_arch}" in
x86_64|amd64)
;;
i*86)
die "i386 currently not supported!"
;;
*) die "Unknown architecture: ${_arch}"
;;
esac
_url=${_base_url}/${_ghver}/x86_64-apple-darwin-ghcup-${_ghver} ;;
*) die "Unknown platform: ${_plat}"
;;
esac
edo curl -Lf "${_url}" > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup
edo chmod +x "${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
eghcup upgrade
unset _plat _arch _url _ghver _base_url
}
echo
echo "Welcome to Haskell!"
echo
echo "This script will download and install the following binaries:"
echo " * ghcup - The Haskell toolchain installer (for managing GHC/cabal versions)"
echo " * ghc - The Glasgow Haskell Compiler"
echo " * cabal - The Cabal build tool"
echo
echo "ghcup installs only into the following directory, which can be removed anytime:"
echo " $GHCUP_INSTALL_BASE_PREFIX/.ghcup"
echo
if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
printf "\\033[0;35m%s\\033[0m\\n" "Press ENTER to proceed or ctrl-c to abort."
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 || download_ghcup
fi
else
download_ghcup
fi
echo
echo "$(ghcup tool-requirements)"
echo
if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
printf "\\033[0;35m%s\\033[0m\\n" "Press ENTER to proceed or ctrl-c to abort."
printf "\\033[0;35m%s\\033[0m\\n" "Installation may take a while."
echo
# Wait for user input to continue.
# shellcheck disable=SC2034
read -r answer </dev/tty
fi
eghcup --cache install ghc "${BOOTSTRAP_HASKELL_GHC_VERSION}"
eghcup set ghc "${BOOTSTRAP_HASKELL_GHC_VERSION}"
eghcup --cache install cabal "${BOOTSTRAP_HASKELL_CABAL_VERSION}"
edo cabal new-update
printf "\\033[0;35m%s\\033[0m\\n" ""
printf "\\033[0;35m%s\\033[0m\\n" "Installation done!"
printf "\\033[0;35m%s\\033[0m\\n" ""
if [ -z "${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
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="$HOME/.zshrc"
MY_SHELL="zsh"
else
exit 0
fi
;;
*/fish) # login shell is fish
GHCUP_PROFILE_FILE="$HOME/.config/fish/config.fish"
MY_SHELL="fish" ;;
*) 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]*)
case $MY_SHELL in
"") break ;;
fish)
echo "set -q GHCUP_INSTALL_BASE_PREFIX[1]; or set GHCUP_INSTALL_BASE_PREFIX \$HOME" >> "${GHCUP_PROFILE_FILE}"
echo "test -f \$GHCUP_INSTALL_BASE_PREFIX/.ghcup/env ; and set -gx PATH \$HOME/.cabal/bin \$GHCUP_INSTALL_BASE_PREFIX/.ghcup/bin \$PATH" >> "${GHCUP_PROFILE_FILE}"
break ;;
*)
echo "[ -f \"\${GHCUP_INSTALL_BASE_PREFIX:=\$HOME}/.ghcup/env\" ] && source \"\${GHCUP_INSTALL_BASE_PREFIX:=\$HOME}/.ghcup/env\"" >> "${GHCUP_PROFILE_FILE}"
break ;;
esac
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