Considerably tweak the list subcommand wrt #88
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ghcup
133
ghcup
@ -187,7 +187,7 @@ SUBCOMMANDS:
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install Install GHC$(${VERBOSE} && printf "\n compile Compile and install GHC from source (UNSTABLE!!!)")
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show Show current/installed GHC
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set Set currently active GHC version
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list Show available GHCs and other tools (upstream)
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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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@ -404,19 +404,20 @@ DISCUSSION:
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# and exit the script with status code 1.
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list_usage() {
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(>&2 echo "ghcup-list
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Show available GHCs and other tools (from upstream)
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Show available GHCs and other tools
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USAGE:
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${SCRIPT} list
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FLAGS:
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-h, --help Prints help information
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-t, --tool Tool to list versions for (e.g. 'ghc' or 'cabal-install').
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Default is showing all tools.
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-t, --tool <all|ghc|cabal-install> Tool to list versions for. Default is ghc only.
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-c, --show-criteria <installed|set> Show only installed or set tool versions
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-r, --raw-format Raw format, for machine parsing
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DISCUSSION:
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Prints tools (e.g. GHC and cabal-install) and their
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available upstream versions.
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available/installed/set versions.
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")
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exit 1
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}
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@ -868,6 +869,45 @@ ghc_already_installed() {
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fi
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}
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# @FUNCTION: cabal_already_installed
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# @USAGE: <cabalversion>
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# @DESCRIPTION:
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# Checks whether the specified cabal version
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# has been installed by ghcup already.
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# @RETURN: 0 if cabal is already installed, 1 otherwise
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cabal_already_installed() {
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[ -z "$1" ] && die "Internal error: no argument given to cabal_already_installed"
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if [ -x "${BIN_LOCATION}/cabal" ] ; then
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if [ "$("${BIN_LOCATION}/cabal" --numeric-version)" = "$1" ] ; then
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return 0
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else
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return 1
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fi
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else
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return 1
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fi
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}
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# @FUNCTION: tool_already_installed
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# @USAGE: <tool> <cabalversion>
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# @DESCRIPTION:
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# Checks whether the specified tool and version
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# has been installed by ghcup already.
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# @RETURN: 0 if tool is already installed, 1 otherwise
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tool_already_installed() {
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if [ "$1" = "ghc" ] ; then
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ghc_already_installed "$2"
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return $?
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elif [ "$1" = "cabal-install" ] ; then
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cabal_already_installed "$2"
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return $?
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else
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return 1
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fi
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}
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# @FUNCTION: get_ghc_location
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# @USAGE: <ghcversion>
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# @DESCRIPTION:
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@ -1426,6 +1466,16 @@ show_ghc_installed() {
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unset real_ghc current_ghc
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}
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# @FUNCTION: show_cabal_installed
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# @DESCRIPTION:
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# Prints the currently selected cabal only as version string.
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# @STDOUT: current cabal version
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show_cabal_installed() {
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if [ -x "${BIN_LOCATION}/cabal" ] ; then
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"${BIN_LOCATION}/cabal" --numeric-version
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fi
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}
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#######################
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@ -1688,17 +1738,22 @@ print_debug_info() {
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# @FUNCTION: list
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# @USAGE: [tool]
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# @USAGE: <tool> <raw-format> <criteria>
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# @DESCRIPTION:
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# List available tools and their versions from upstream.
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list() {
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mytool=$1
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raw_format=$2
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criteria=$3
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meta_file="$(get_meta_version_file)"
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echo "Available upstream versions:"
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echo
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if [ -z "${mytool}" ] ; then
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if ! ${raw_format} ; then
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printf "\\033[1;32m%s\\033[0m\\n" "Available versions:"
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fi
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lines=$(
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if [ "${mytool}" = "all" ] ; then
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awk "
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NF {
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if (\$1 != \"#\") {
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@ -1717,8 +1772,58 @@ list() {
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}
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}" "${meta_file}" || die "awk failed!"
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fi
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)
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unset mytool meta_file
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_print_me() {
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if ${raw_format} ; then
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printf "%s\\n" "$1"
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else
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if [ "$2" = "available" ] ; then
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printf "\\033[0;32m\342\234\224\\033[0m %s\\n" "$1"
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elif [ "$2" = "set" ] ; then
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printf "\\033[0;32m\342\234\224 \\033[0;34m%s\\033[0m\\n" "$1"
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elif [ "$2" = "unavailable" ] ; then
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printf "\\033[0;31m\342\234\227\\033[0m %s\\n" "$1"
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fi
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fi
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}
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if [ -z "${lines}" ] ; then
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(>&2 echo "Nothing found for tool ${mytool}")
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return
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fi
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echo "$lines" | while read -r l; do
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tool=$(echo "${l}" | cut -f1)
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version=$(echo "${l}" | cut -f2)
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if [ "${criteria}" = "set" ] ; then
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if [ "${tool}" = "ghc" ] && [ "${version}" = "$(show_ghc_installed)" ] ; then
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_print_me "${l}" "set"
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fi
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if [ "${tool}" = "cabal-install" ] && [ "${version}" = "$(show_cabal_installed)" ] ; then
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_print_me "${l}" "set"
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fi
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else
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if tool_already_installed "${tool}" "${version}" ; then
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if [ "${tool}" = "ghc" ] && [ "${version}" = "$(show_ghc_installed)" ] ; then
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_print_me "${l}" "set"
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elif [ "${tool}" = "cabal-install" ] && [ "${version}" = "$(show_cabal_installed)" ] ; then
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_print_me "${l}" "set"
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else
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_print_me "${l}" "available"
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fi
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else
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if [ "${criteria}" != "installed" ] ; then
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_print_me "${l}" "unavailable"
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fi
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fi
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fi
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done
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unset mytool meta_file l lines tool version raw_format installed_only criteria
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}
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@ -1989,16 +2094,22 @@ while [ $# -gt 0 ] ; do
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print_debug_info
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break;;
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list)
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RAW_FORMAT=false
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TOOL="ghc"
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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) list_usage;;
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-t|--tool) TOOL=$2
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shift 2;;
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-r|--raw-format) RAW_FORMAT=true
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shift 1;;
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-c|--show-criteria) SHOW_CRITERIA=$2
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shift 2;;
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*) list_usage;;
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esac
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done
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list "${TOOL}"
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list "${TOOL}" ${RAW_FORMAT} "${SHOW_CRITERIA}"
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break;;
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changelog)
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shift 1
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