129 lines
4.1 KiB
Bash
Executable File
129 lines
4.1 KiB
Bash
Executable File
#!/bin/sh
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# safety subshell to avoid executing anything in case this script is not downloaded properly
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(
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: "${GHCUP_INSTALL_BASE_PREFIX:=$HOME}"
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die() {
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(>&2 printf "\\033[0;31m%s\\033[0m\\n" "$1")
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exit 2
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}
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edo()
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{
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"$@" || die "\"$*\" failed!"
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}
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echo
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echo "Welcome to Haskell!"
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echo
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echo "This will download and install the Glasgow Haskell Compiler (GHC) for "
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echo "the Haskell programming language, and the Cabal build tool."
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echo
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echo "It will add the 'cabal', 'ghc', and 'ghcup' executables to bin directory "
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echo "located at: "
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echo
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echo " $GHCUP_INSTALL_BASE_PREFIX/.ghcup/bin"
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echo
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echo "and create the environment file $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env"
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echo "which you should source in your ~/.bashrc or similar to get the required"
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echo "PATH components."
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echo
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if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
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printf "\\033[0;35m%s\\033[0m\\n" "To proceed with the ghcup installation press ENTER, to cancel press ctrl-c."
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printf "\\033[0;35m%s\\033[0m\\n" "Note that this script can be re-run at any given time."
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echo
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# Wait for user input to continue.
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# shellcheck disable=SC2034
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read -r answer </dev/tty
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fi
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edo mkdir -p "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin
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if command -V "ghcup" >/dev/null 2>&1 ; then
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if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then
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edo ghcup upgrade
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fi
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else
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edo curl --silent https://gitlab.haskell.org/haskell/ghcup/raw/master/ghcup > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup
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edo chmod +x "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/bin/ghcup
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cat <<-EOF > "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env || die "Failed to create env file"
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export PATH="\$HOME/.cabal/bin:\${GHCUP_INSTALL_BASE_PREFIX:=\$HOME}/.ghcup/bin:\$PATH"
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EOF
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# shellcheck disable=SC1090
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edo . "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env
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fi
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echo
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printf "\\033[0;35m%s\\033[0m\\n" "To install and run GHC you need the following dependencies:"
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echo " $(ghcup print-system-reqs)"
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echo
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if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
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printf "\\033[0;35m%s\\033[0m\\n" "You may want to install these now, then press ENTER to proceed"
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printf "\\033[0;35m%s\\033[0m\\n" "or press ctrl-c to abort. Installation may take a while."
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echo
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# Wait for user input to continue.
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# shellcheck disable=SC2034
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read -r answer </dev/tty
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fi
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edo ghcup --cache install
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edo ghcup set
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edo ghcup --cache install-cabal
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edo cabal new-update
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printf "\\033[0;35m%s\\033[0m\\n" ""
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printf "\\033[0;35m%s\\033[0m\\n" "Installation done!"
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printf "\\033[0;35m%s\\033[0m\\n" ""
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echo "In order to run ghc and cabal, you need to adjust your PATH variable."
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echo "You may want to source '$GHCUP_INSTALL_BASE_PREFIX/.ghcup/env' in your shell"
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echo "configuration to do so (e.g. ~/.bashrc)."
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if [ -e "$HOME/.bashrc" ] ; then
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printf "\\033[0;35m%s\\033[0m\\n" ""
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printf "\\033[0;35m%s\\033[0m\\n" "Detected ~/.bashrc on your system..."
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printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your ~/.bashrc to include the required PATH variable"
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printf "\\033[0;35m%s\\033[0m\\n" "answer with YES and press ENTER (at your own risk)."
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printf "\\033[0;35m%s\\033[0m\\n" "Otherwise press ctrl-c to abort."
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printf "\\033[0;35m%s\\033[0m\\n" ""
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read -r next_answer </dev/tty
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case $next_answer in
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[Yy]*)
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echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${HOME}/.bashrc"
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;;
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*)
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exit 0;;
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esac
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elif [ -e "$HOME/.bash_profile" ] ; then
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printf "\\033[0;35m%s\\033[0m\\n" ""
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printf "\\033[0;35m%s\\033[0m\\n" "Detected ~/.bash_profile on your system..."
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printf "\\033[0;35m%s\\033[0m\\n" "If you want ghcup to automatically fix your ~/.bash_profile to include the required PATH variable"
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printf "\\033[0;35m%s\\033[0m\\n" "answer with YES and press ENTER (at your own risk)."
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printf "\\033[0;35m%s\\033[0m\\n" "Otherwise press ctrl-c to abort."
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printf "\\033[0;35m%s\\033[0m\\n" ""
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read -r next_answer </dev/tty
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case $next_answer in
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[Yy]*)
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echo "source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env" >> "${HOME}/.bash_profile"
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;;
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*)
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exit 0;;
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esac
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fi
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)
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# vim: tabstop=4 shiftwidth=4 expandtab
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