Introduce print-system-reqs wrt #49
And also make bootstrap-haskell print this by default.
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@ -0,0 +1 @@
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curl g++ gcc gmp make ncurses python3 realpath xz-utils
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@ -0,0 +1 @@
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curl g++ gcc libgmp-dev libtinfo-dev make ncurses-dev python3 realpath xz-utils
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@ -33,10 +33,9 @@ echo "PATH components."
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echo
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if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
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echo "To proceed with the installation press enter, to cancel press ctrl-c."
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echo "To proceed with the ghcup installation press enter, to cancel press ctrl-c."
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echo "Note that this script can be re-run at any given time."
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echo
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# Wait for user input to continue.
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# shellcheck disable=SC2034
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read -r answer </dev/tty
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@ -59,6 +58,22 @@ else
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edo . "${GHCUP_INSTALL_BASE_PREFIX}"/.ghcup/env
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fi
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echo
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echo "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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echo "You may want to install these now, then press enter to proceed"
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echo "or press ctrl-c to abort."
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echo "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 install
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edo ghcup set
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@ -74,3 +89,6 @@ printf "\\033[0;35m%s\\033[0m\\n" ""
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)
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# vim: tabstop=4 shiftwidth=4 expandtab
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120
ghcup
120
ghcup
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@ -100,10 +100,10 @@ DOWNLOADER="curl"
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# Options passed to the download program.
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DOWNLOADER_OPTS="--fail -O"
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# @VARIABLE: SCRIPT_UPDATE_URL
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# @VARIABLE: DOWNLOADER_STDOUT_OPTS
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# @DESCRIPTION:
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# Location to update this script from.
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SCRIPT_UPDATE_URL="https://raw.githubusercontent.com/haskell/ghcup/master/ghcup"
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# Options passed to the download program when printing the content to stdout.
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DOWNLOADER_STDOUT_OPTS="--fail"
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# @VARIABLE: GHC_DOWNLOAD_BASEURL
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# @DESCRIPTION:
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@ -121,11 +121,21 @@ JOBS="1"
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# the script name.
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SOURCE="$0"
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# @VARIABLE: BASE_DOWNLOAD_URL
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# DESCRIPTION:
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# The base url for downloading stuff like meta files, requirements files etc.
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BASE_DOWNLOAD_URL="https://raw.githubusercontent.com/haskell/ghcup/master/"
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# @VARIABLE: SCRIPT_UPDATE_URL
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# @DESCRIPTION:
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# Location to update this script from.
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SCRIPT_UPDATE_URL="${BASE_DOWNLOAD_URL}/ghcup"
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# @VARIABLE: META_DOWNLOAD_URL
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# DESCRIPTION:
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# The url of the meta file for getting
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# download information for ghc/cabal-install etc.
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META_DOWNLOAD_URL="https://raw.githubusercontent.com/haskell/ghcup/master/.download-urls"
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META_DOWNLOAD_URL="${BASE_DOWNLOAD_URL}/.download-urls"
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# @VARIABLE: META_DOWNLOAD_FORMAT
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# DESCRIPTION:
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@ -138,7 +148,7 @@ META_DOWNLOAD_FORMAT="1"
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# DESCRIPTION:
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# The url of the meta file for getting
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# available versions for ghc/cabal-install etc.
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META_VERSION_URL="https://raw.githubusercontent.com/haskell/ghcup/master/.available-versions"
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META_VERSION_URL="${BASE_DOWNLOAD_URL}/.available-versions"
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# @VARIABLE: META_VERSION_FORMAT
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# DESCRIPTION:
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@ -184,14 +194,15 @@ FLAGS:
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(these will not be removed by ghcup)
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SUBCOMMANDS:
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install Install GHC$(${VERBOSE} && printf "\n compile Compile and install GHC from source (UNSTABLE!!!)")
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set Set currently active GHC version
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list Show available GHCs and other tools
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upgrade Upgrade this script in-place
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rm Remove an already installed GHC
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install-cabal Install cabal-install
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debug-info Print debug info (e.g. detected system/distro)
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changelog Show the changelog of a GHC release (online)
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install Install GHC$(${VERBOSE} && printf "\n compile Compile and install GHC from source (UNSTABLE!!!)")
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set Set currently active GHC version
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list Show available GHCs and other tools
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upgrade Upgrade this script in-place
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rm Remove an already installed GHC
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install-cabal Install cabal-install
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debug-info Print debug info (e.g. detected system/distro)
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changelog Show the changelog of a GHC release (online)
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print-system-reqs Print an approximation of system requirements
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DISCUSSION:
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ghcup installs the Glasgow Haskell Compiler from the official
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@ -405,7 +416,7 @@ DISCUSSION:
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# @FUNCTION: changelog_usage
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# @DESCRIPTION:
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# Print the help message for 'ghcup set' to STDERR
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# Print the help message for 'ghcup changelog' to STDERR
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# and exit the script with status code 1.
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changelog_usage() {
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(>&2 echo "ghcup-changelog
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@ -429,6 +440,30 @@ DISCUSSION:
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exit 1
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}
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# @FUNCTION: print_system_reqs_usage
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# @DESCRIPTION:
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# Print the help message for 'ghcup print-system-reqs' to STDERR
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# and exit the script with status code 1.
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print_system_reqs_usage() {
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(>&2 echo "ghcup-print-system-reqs
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Print an approximation of system requirements
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USAGE:
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${SCRIPT} print-system-reqs
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FLAGS:
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-h, --help Prints help information
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DISCUSSION:
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Just prints an approximation of the system requirements
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for the 'recommended' GHC version and the 'latest' distro version
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you are on.
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Review this output carefully!
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")
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exit 1
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}
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@ -965,6 +1000,16 @@ download_silent() {
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fi
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}
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# @FUNCTION: download_to_stdout
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# @USAGE: <url>
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# @DESCRIPTION:
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# Downloads the given url to stdout.
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download_to_stdout() {
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[ -z "$1" ] && die "Internal error: no argument given to download"
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# shellcheck disable=SC2086
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edo ${DOWNLOADER} ${DOWNLOADER_STDOUT_OPTS} "$1"
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}
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# @FUNCTION: unpack
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# @USAGE: <tarball>
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# @DESCRIPTION:
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@ -1805,6 +1850,42 @@ changelog() {
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}
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######################################
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#--[ Subcommand print-system-reqs ]--#
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######################################
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# @FUNCTION: system_reqs_url
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# @USAGE: <distro-alias>
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# @DESCRIPTION:
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# Mapping of distro-alias to system requirements URL.
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system_reqs_url() {
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[ -z "$1" ] && die "Internal error: no argument given to system_reqs_url"
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case "$1" in
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"debian"|"ubuntu")
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printf "%s/.requirements/ghc/ubuntu" "${BASE_DOWNLOAD_URL}"
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;;
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*)
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printf "%s/.requirements/ghc/default" "${BASE_DOWNLOAD_URL}"
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;;
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esac
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}
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# @FUNCTION: print_system_reqs
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# @DESCRIPTION:
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# Print the system requirements (approximation).
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print_system_reqs() {
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mydistro=$(get_distro_alias "$(get_distro_name)")
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reqs_url=$(system_reqs_url "${mydistro}")
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download_to_stdout "${reqs_url}"
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unset mydistro reqs_url
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}
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#######################
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@ -1846,6 +1927,7 @@ while [ $# -gt 0 ] ; do
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-w|--wget)
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DOWNLOADER="wget"
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DOWNLOADER_OPTS=""
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DOWNLOADER_STDOUT_OPTS="-qO-"
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shift 1
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if [ $# -lt 1 ] ; then
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usage
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@ -2068,6 +2150,16 @@ while [ $# -gt 0 ] ; do
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fi
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fi
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break;;
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print-system-reqs)
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shift 1
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while [ $# -gt 0 ] ; do
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case $1 in
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-h|--help) print_system_reqs_usage;;
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*) print_system_reqs_usage;;
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esac
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done
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print_system_reqs
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break;;
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*) usage;;
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esac
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break;;
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