Created
May 25, 2019 09:59
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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!" | |
| } | |
| 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 | |
| echo "To proceed with the ghcup installation press enter, to cancel press ctrl-c." | |
| echo "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 | |
| edo ghcup 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 | |
| echo "To install and run GHC you need the following dependencies:" | |
| echo " $(ghcup print-system-reqs)" | |
| echo | |
| if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then | |
| echo "You may want to install these now, then press enter to proceed" | |
| echo "or press ctrl-c to abort." | |
| echo "Installation may take a while." | |
| echo | |
| # Wait for user input to continue. | |
| # shellcheck disable=SC2034 | |
| read -r answer </dev/tty | |
| fi | |
| edo ghcup --cache install | |
| edo ghcup set | |
| edo ghcup --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" "" | |
| printf "\\033[0;35m%s\\033[0m\\n" "Don't forget to source $GHCUP_INSTALL_BASE_PREFIX/.ghcup/env in your ~/.bashrc or similar." | |
| printf "\\033[0;35m%s\\033[0m\\n" "" | |
| ) | |
| # vim: tabstop=4 shiftwidth=4 expandtab | |
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