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Merge branch 'bootstrap'

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Julian Ospald 2019-01-07 11:08:40 +08:00
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18
README.md
View File

@ -19,6 +19,24 @@ Similar in scope to [rustup](https://github.com/rust-lang-nursery/rustup.rs), [p
## Installation
### Simple bootstrap of ghcup, GHC and cabal-install
```sh
# complete bootstrap
curl https://raw.githubusercontent.com/haskell/ghcup/master/bootstrap-haskell -sSf | sh
# prepare your environment
. "$HOME/.ghcup/env"
echo '. $HOME/.ghcup/env' >> "$HOME/.bashrc" # or similar
# now create a project, such as:
mkdir myproject && cd myproject
cabal init -n --is-executable
cabal v2-run
```
### Manual install
Just place the `ghcup` shell script into your `PATH` anywhere.
E.g.:

75
bootstrap-haskell Executable file
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@ -0,0 +1,75 @@
#!/bin/sh
# safety subshell to avoid executing anything in case this script is not downloaded properly
(
die() {
(>&2 printf "\\033[0;31m%s\\033[0m\\n" "$1")
exit 2
}
edo()
{
printf "\\033[0;35m%s\\033[0m\\n" "$*"
"$@" || exit 2
}
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 " $HOME/.ghcup/bin"
echo
echo "and create the environment file $HOME/.ghcup/env"
echo "which you should source in your ~/.bashrc or similar to get the required"
echo "PATH components."
echo
if [ -z "${BOOTSTRAP_HASKELL_NONINTERACTIVE}" ] ; then
echo "To proceed with the 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 "${HOME}"/.ghcup/bin
if command -V "ghcup" >/dev/null 2>&1 ; then
if [ -z "${BOOTSTRAP_HASKELL_NO_UPGRADE}" ] ; then
edo ghcup upgrade
fi
else
edo curl https://raw.githubusercontent.com/haskell/ghcup/master/ghcup > "${HOME}"/.ghcup/bin/ghcup
edo chmod +x "${HOME}"/.ghcup/bin/ghcup
cat <<-EOF > "${HOME}"/.ghcup/env || die "Failed to create env file"
export PATH="\$HOME/.cabal/bin:\$HOME/.ghcup/bin:\$PATH"
EOF
# shellcheck disable=SC1090
edo . "${HOME}"/.ghcup/env
fi
edo ghcup install
edo ghcup set
edo ghcup install-cabal
edo cabal new-update
edo cabal new-install --symlink-bindir="$HOME/.cabal/bin" cabal-install
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 $HOME/.ghcup/env in your ~/.bashrc or similar."
printf "\\033[0;35m%s\\033[0m\\n" ""
)

470
ghcup
View File

@ -239,13 +239,15 @@ set_usage() {
Set the currently active GHC to the specified version
USAGE:
${SCRIPT} set [FLAGS] <VERSION>
${SCRIPT} set [FLAGS] [VERSION|TAG]
FLAGS:
-h, --help Prints help information
ARGS:
<VERSION> E.g. \"8.4.3\" or \"8.6.1\"
[VERSION|TAG] E.g. \"8.4.3\" or \"8.6.3\" or
a tag like \"recommended\" or \"latest\"
(default: discovers recommended version)
DISCUSSION:
Sets the the current GHC version by creating non-versioned
@ -1004,34 +1006,6 @@ posix_realpath() {
unset mysource mydir posix_realpath_error
}
# @FUNCTION: is_sourced
# @DESCRIPTION:
# Tries to figure out if we are being sourced. Based on
# https://stackoverflow.com/a/28776166
# @RETURNS: 0 if we are being sourced, 1 otherwise
is_sourced() {
if [ -n "$ZSH_EVAL_CONTEXT" ]; then
case $ZSH_EVAL_CONTEXT in
*:file)
return 0 ;;
esac
elif [ -n "$KSH_VERSION" ]; then
# shellcheck disable=SC2154
[ "$(cd "$(dirname -- "$0")" && pwd -P)/$(basename -- "$0")" != "$(cd "$(dirname -- "${.sh.file}")" && pwd -P)/$(basename -- "${.sh.file}")" ] && return 0
elif [ -n "$BASH_VERSION" ]; then
# shellcheck disable=SC2128
[ "$0" != "$BASH_SOURCE" ] && return 0
else # All other shells: examine $0 for known shell binary filenames
# Detects `sh` and `dash`; add additional shell filenames as needed.
case ${0##*/} in
sh|dash)
return 0 ;;
esac
fi
# assume we are not sourced, if our above checks didn't find it
return 1
}
# @FUNCTION: get_meta_version_file
# @DESCRIPTION:
@ -1188,7 +1162,8 @@ install_ghc() {
if ${FORCE} ; then
echo "GHC already installed in ${inst_location}, overwriting!"
else
die "GHC already installed in ${inst_location}, use --force to overwrite"
warning_message "GHC already installed in ${inst_location}, use --force to overwrite"
exit 0
fi
first_install=false
fi
@ -1693,222 +1668,235 @@ fi
#--[ Command line parsing and entry point ]--#
##############################################
if ! is_sourced ; then
[ $# -lt 1 ] && usage
[ $# -lt 1 ] && usage
while [ $# -gt 0 ] ; do
case $1 in
-v|--verbose)
VERBOSE=true
shift 1
if [ $# -lt 1 ] ; then
usage
fi
;;
-V|--version)
printf "%s" "${VERSION}"
exit 0;;
-h|--help)
usage;;
-w|--wget)
DOWNLOADER="wget"
DOWNLOADER_OPTS=""
shift 1
if [ $# -lt 1 ] ; then
usage
fi
;;
-c|--cache)
CACHING=true
shift 1
if [ $# -lt 1 ] ; then
usage
fi
;;
*) ## startup tasks ##
while [ $# -gt 0 ] ; do
case $1 in
-v|--verbose)
VERBOSE=true
shift 1
if [ $# -lt 1 ] ; then
usage
fi
;;
-V|--version)
printf "%s" "${VERSION}"
exit 0;;
-h|--help)
usage;;
-w|--wget)
DOWNLOADER="wget"
DOWNLOADER_OPTS=""
shift 1
if [ $# -lt 1 ] ; then
usage
fi
;;
-c|--cache)
CACHING=true
shift 1
if [ $# -lt 1 ] ; then
usage
fi
;;
*) ## startup tasks ##
edo mkdir -p "${INSTALL_BASE}"
edo mkdir -p "${BIN_LOCATION}"
edo mkdir -p "${CACHE_LOCATION}"
edo mkdir -p "${INSTALL_BASE}"
edo mkdir -p "${BIN_LOCATION}"
edo mkdir -p "${CACHE_LOCATION}"
# clean up old meta files
if [ -e "${CACHE_LOCATION}/$(basename "${META_VERSION_URL}")" ] ; then
edo rm "${CACHE_LOCATION}/$(basename "${META_VERSION_URL}")"
fi
if [ -e "${CACHE_LOCATION}/$(basename "${META_DOWNLOAD_URL}")" ] ; then
edo rm "${CACHE_LOCATION}/$(basename "${META_DOWNLOAD_URL}")"
fi
# clean up old meta files
if [ -e "${CACHE_LOCATION}/$(basename "${META_VERSION_URL}")" ] ; then
edo rm "${CACHE_LOCATION}/$(basename "${META_VERSION_URL}")"
# check for available commands
missing_commands="$(check_required_commands ${DOWNLOADER})"
if [ -n "${missing_commands}" ] ; then
die "Following commands are required, but missing, please install: ${missing_commands}"
fi
unset missing_commands
case $1 in
install)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) install_usage;;
-f|--force) FORCE=true
shift 1;;
*) GHC_VER=$1
break;;
esac
done
if [ -z "${GHC_VER}" ] ; then
_tool_ver="$(get_tool_ver_from_tag "ghc" "recommended")"
if [ -z "${_tool_ver}" ] ; then
die "Could not find a recommended GHC version, please report a bug at ${BUG_URL}!"
fi
install_ghc "${_tool_ver}"
else
# could be a version or a tag, let's check
if array_contains "${GHC_VER}" "$(known_tool_versions "ghc")" ; then
install_ghc "${GHC_VER}"
elif array_contains "${GHC_VER}" "$(known_tool_tags "ghc")" ; then
install_ghc "$(get_tool_ver_from_tag "ghc" "${GHC_VER}")"
else
die "\"${GHC_VER}\" is not a known version or tag!"
fi
fi
if [ -e "${CACHE_LOCATION}/$(basename "${META_DOWNLOAD_URL}")" ] ; then
edo rm "${CACHE_LOCATION}/$(basename "${META_DOWNLOAD_URL}")"
fi
# check for available commands
missing_commands="$(check_required_commands ${DOWNLOADER})"
if [ -n "${missing_commands}" ] ; then
die "Following commands are required, but missing, please install: ${missing_commands}"
fi
unset missing_commands
case $1 in
install)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) install_usage;;
-f|--force) FORCE=true
shift 1;;
*) GHC_VER=$1
break;;
esac
done
if [ -z "${GHC_VER}" ] ; then
_tool_ver="$(get_tool_ver_from_tag "ghc" "recommended")"
if [ -z "${_tool_ver}" ] ; then
die "Could not find a recommended GHC version, please report a bug at ${BUG_URL}!"
fi
install_ghc "${_tool_ver}"
else
# could be a version or a tag, let's check
if array_contains "${GHC_VER}" "$(known_tool_versions "ghc")" ; then
install_ghc "${GHC_VER}"
elif array_contains "${GHC_VER}" "$(known_tool_tags "ghc")" ; then
install_ghc "$(get_tool_ver_from_tag "ghc" "${GHC_VER}")"
else
die "\"${GHC_VER}\" is not a known version or tag!"
fi
fi
break;;
set)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) set_usage;;
*) GHC_VER=$1
break;;
esac
done
[ -n "${GHC_VER}" ] || set_usage
set_ghc "${GHC_VER}"
break;;
upgrade)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) upgrade_usage;;
*) TARGET_LOCATION=$1
break;;
esac
done
if [ -n "${TARGET_LOCATION}" ] ; then
upgrade "${TARGET_LOCATION}"
else
upgrade "$(dirname "$(posix_realpath "${SOURCE}")")"
fi
break;;
show)
SHOW_INSTALLED=false
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) show_usage;;
-i|--installed) SHOW_INSTALLED=true
break;;
*) show_usage;;
esac
done
if ${SHOW_INSTALLED} ; then
show_ghc_installed
else
show_ghc
fi
break;;
rm)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) rm_usage;;
-f|--force) FORCE=true
shift 1;;
*) GHC_VER=$1
break;;
esac
done
[ -n "${GHC_VER}" ] || rm_usage
rm_ghc "${GHC_VER}"
break;;
install-cabal)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) install_cabal_usage;;
-f|--force) FORCE=true
shift 1;;
*) CABAL_VER=$1
break;;
esac
done
if [ -n "${CABAL_VER}" ] ; then
# could be a version or a tag, let's check
if array_contains "${CABAL_VER}" "$(known_tool_versions "cabal-install")" ; then
install_cabal "${CABAL_VER}"
elif array_contains "${CABAL_VER}" "$(known_tool_tags "cabal-install")" ; then
install_cabal "$(get_tool_ver_from_tag "cabal-install" "${CABAL_VER}")"
else
die "\"${CABAL_VER}\" is not a known version or tag!"
fi
else
_cabal_ver="$(get_tool_ver_from_tag "cabal-install" "recommended")"
if [ -z "${_cabal_ver}" ] ; then
die "Could not find a recommended cabal-install version, please report a bug at ${BUG_URL}!"
fi
install_cabal "${_cabal_ver}"
fi
break;;
compile)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) compile_usage;;
-f|--force) FORCE=true
shift 1;;
-j|--jobs) JOBS=$2
shift 2;;
-c|--build-config) BUILD_CONFIG=$2
shift 2;;
*) GHC_VER=$1
BOOTSTRAP_GHC=$2
break;;
esac
done
[ -n "${GHC_VER}" ] || compile_usage
[ -n "${BOOTSTRAP_GHC}" ] || compile_usage
compile_ghc "${GHC_VER}" "${BOOTSTRAP_GHC}" "${BUILD_CONFIG}"
break;;
debug-info)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) debug_info_usage;;
*) debug_info_usage;;
esac
done
print_debug_info
break;;
list)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) list_usage;;
-t|--tool) TOOL=$2
shift 2;;
*) list_usage;;
esac
done
list "${TOOL}"
break;;
*) usage;;
esac
break;;
esac
done
fi # is_sourced
set)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) set_usage;;
*) GHC_VER=$1
break;;
esac
done
if [ -z "${GHC_VER}" ] ; then
_tool_ver="$(get_tool_ver_from_tag "ghc" "recommended")"
if [ -z "${_tool_ver}" ] ; then
die "Could not find a recommended GHC version, please report a bug at ${BUG_URL}!"
fi
set_ghc "${_tool_ver}"
else
# could be a version or a tag, let's check
if array_contains "${GHC_VER}" "$(known_tool_versions "ghc")" ; then
set_ghc "${GHC_VER}"
elif array_contains "${GHC_VER}" "$(known_tool_tags "ghc")" ; then
set_ghc "$(get_tool_ver_from_tag "ghc" "${GHC_VER}")"
else
die "\"${GHC_VER}\" is not a known version or tag!"
fi
fi
break;;
upgrade)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) upgrade_usage;;
*) TARGET_LOCATION=$1
break;;
esac
done
if [ -n "${TARGET_LOCATION}" ] ; then
upgrade "${TARGET_LOCATION}"
else
upgrade "$(dirname "$(posix_realpath "${SOURCE}")")"
fi
break;;
show)
SHOW_INSTALLED=false
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) show_usage;;
-i|--installed) SHOW_INSTALLED=true
break;;
*) show_usage;;
esac
done
if ${SHOW_INSTALLED} ; then
show_ghc_installed
else
show_ghc
fi
break;;
rm)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) rm_usage;;
-f|--force) FORCE=true
shift 1;;
*) GHC_VER=$1
break;;
esac
done
[ -n "${GHC_VER}" ] || rm_usage
rm_ghc "${GHC_VER}"
break;;
install-cabal)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) install_cabal_usage;;
-f|--force) FORCE=true
shift 1;;
*) CABAL_VER=$1
break;;
esac
done
if [ -n "${CABAL_VER}" ] ; then
# could be a version or a tag, let's check
if array_contains "${CABAL_VER}" "$(known_tool_versions "cabal-install")" ; then
install_cabal "${CABAL_VER}"
elif array_contains "${CABAL_VER}" "$(known_tool_tags "cabal-install")" ; then
install_cabal "$(get_tool_ver_from_tag "cabal-install" "${CABAL_VER}")"
else
die "\"${CABAL_VER}\" is not a known version or tag!"
fi
else
_cabal_ver="$(get_tool_ver_from_tag "cabal-install" "recommended")"
if [ -z "${_cabal_ver}" ] ; then
die "Could not find a recommended cabal-install version, please report a bug at ${BUG_URL}!"
fi
install_cabal "${_cabal_ver}"
fi
break;;
compile)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) compile_usage;;
-f|--force) FORCE=true
shift 1;;
-j|--jobs) JOBS=$2
shift 2;;
-c|--build-config) BUILD_CONFIG=$2
shift 2;;
*) GHC_VER=$1
BOOTSTRAP_GHC=$2
break;;
esac
done
[ -n "${GHC_VER}" ] || compile_usage
[ -n "${BOOTSTRAP_GHC}" ] || compile_usage
compile_ghc "${GHC_VER}" "${BOOTSTRAP_GHC}" "${BUILD_CONFIG}"
break;;
debug-info)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) debug_info_usage;;
*) debug_info_usage;;
esac
done
print_debug_info
break;;
list)
shift 1
while [ $# -gt 0 ] ; do
case $1 in
-h|--help) list_usage;;
-t|--tool) TOOL=$2
shift 2;;
*) list_usage;;
esac
done
list "${TOOL}"
break;;
*) usage;;
esac
break;;
esac
done
# vim: tabstop=4 shiftwidth=4 expandtab