asdf/asdf.sh
Jonathan Mast 9116e8453d
Add "shell" subcommand for setting versions in shell session
Add a "shell" command similar to the existing "global" and "local"
commands, which sets the version in an environment variable instead of
writing it to a file. This was inspired by the similar functionality in
rbenv.

It works by adding a wrapper function for the asdf command. It forwards
to a "sh-shell" command that returns the exports as shell code which is
then evaled by the wrapper. This is a little gross, but we need to run
the code in the shell context in order to set variables.

Resolves #378
2019-03-09 13:19:33 -05:00

49 lines
1.2 KiB
Bash

#!/usr/bin/env bash
if [ "${BASH_SOURCE[0]}" != "" ]; then
current_script_path="${BASH_SOURCE[0]}"
else
current_script_path="$0"
fi
export ASDF_DIR
ASDF_DIR="$(dirname "$current_script_path")"
# shellcheck disable=SC2016
[ -d "$ASDF_DIR" ] || echo '$ASDF_DIR is not a directory'
# Add asdf to PATH
#
# if in $PATH, remove, regardless of if it is in the right place (at the front) or not.
# replace all occurrences - ${parameter//pattern/string}
ASDF_BIN="${ASDF_DIR}/bin"
ASDF_USER_SHIMS="${ASDF_DATA_DIR:-$HOME/.asdf}/shims"
[[ ":$PATH:" == *":${ASDF_BIN}:"* ]] && PATH="${PATH//$ASDF_BIN:/}"
[[ ":$PATH:" == *":${ASDF_USER_SHIMS}:"* ]] && PATH="${PATH//$ASDF_USER_SHIMS:/}"
# add to front of $PATH
PATH="${ASDF_BIN}:$PATH"
PATH="${ASDF_USER_SHIMS}:$PATH"
# Add function wrapper so we can export variables
asdf() {
local command
command="$1"
if [ "$#" -gt 0 ]; then
shift
fi
case "$command" in
"shell")
# eval commands that need to export variables
eval "$(asdf "sh-$command" "$@")";;
*)
# forward other commands to asdf script
command asdf "$command" "$@";;
esac
}
if [ -n "$ZSH_VERSION" ]; then
autoload -U bashcompinit
bashcompinit
fi