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- #!/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
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