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|
#!/usr/bin/env bash
# Summary: Configure the shell environment for rbenv
# Usage: rbenv init [<shells>...]
# rbenv init - [--no-rehash] [<shell>]
#
# Modifies shell initialization files to bootstrap rbenv functionality.
# Typically, this will add a line that eval's the output of `rbenv init -`.
# If no shells are named by arguments, the current shell will be detected
# by inspecting the parent process. If a shell is already configured for
# rbenv, the init command does nothing and exits with zero status.
#
# In the `rbenv init -` mode, this outputs a script to be eval'd in the
# current shell. Most importantly, that script prepends the rbenv shims
# directory to the PATH environment variable. To aid interactive shells,
# the script also installs the magic `rbenv()` shell function and loads
# shell completions for rbenv commands.
set -e
[ -n "$RBENV_DEBUG" ] && set -x
# Provide rbenv completions
if [ "$1" = "--complete" ]; then
echo -
echo --no-rehash
echo bash
echo fish
echo ksh
echo zsh
exit
fi
print=""
no_rehash=""
shells=()
while [ $# -gt 0 ]; do
case "$1" in
"-" )
print=1
;;
"--no-rehash" )
no_rehash=1
;;
* )
shells+=("$1")
;;
esac
shift
done
if [ "${#shells[@]}" -eq 0 ]; then
shell="$(ps -p "$PPID" -o 'args=' 2>/dev/null || true)"
shell="${shell%% *}"
shell="${shell##-}"
shell="${shell:-$SHELL}"
shell="${shell##*/}"
shells=("${shell%%-*}")
fi
root="${BASH_SOURCE:-$0}"
root="${root%/*}"
root="${root%/*}"
rbenv_in_path=true
if [ -n "$RBENV_ORIG_PATH" ]; then
PATH="$RBENV_ORIG_PATH" type -P rbenv >/dev/null || rbenv_in_path=""
fi
if [ -z "$print" ]; then
display_path() {
if [ "${1/#$HOME\/}" != "$1" ]; then
# shellcheck disable=SC2088
printf '~/%s' "${1/#$HOME\/}"
else
printf '%s' "$1"
fi
}
rbenv_command=rbenv
if [ -z "$rbenv_in_path" ]; then
rbenv_command="$(display_path "$root/bin/rbenv")"
fi
color_start=""
color_end=""
if [ -t 1 ]; then
color_start=$'\e[33;1m'
color_end=$'\e[m'
fi
write_config() {
if grep -q "rbenv init" "$1" 2>/dev/null; then
printf 'skipping %s%s%s: already configured for rbenv.\n' "$color_start" "$(display_path "$1")" "$color_end"
return 0
fi
mkdir -p "${1%/*}"
# shellcheck disable=SC2016
printf '\n# Added by `rbenv init` on %s\n%s\n' "$(date)" "$2" >> "$1"
printf 'writing %s%s%s: now configured for rbenv.\n' "$color_start" "$(display_path "$1")" "$color_end"
}
status=0
for shell in "${shells[@]}"; do
case "$shell" in
bash )
if [ -f ~/.bashrc ] && [ ! -f ~/.bash_profile ]; then
profile="$HOME/.bashrc"
else
# shellcheck disable=SC2012
profile="$(ls ~/.bash_profile ~/.bash_login ~/.profile 2>/dev/null | head -n1)"
[ -n "$profile" ] || profile="$HOME/.bash_profile"
fi
write_config "$profile" \
"eval \"\$($rbenv_command init - --no-rehash bash)\""
;;
zsh )
# check zshrc for backward compatibility with older rbenv init
if grep -q rbenv "${ZDOTDIR:-$HOME}/.zshrc" 2>/dev/null; then
profile="${ZDOTDIR:-$HOME}/.zshrc"
else
profile="${ZDOTDIR:-$HOME}/.zprofile"
fi
write_config "$profile" \
"eval \"\$($rbenv_command init - --no-rehash zsh)\""
;;
ksh | ksh93 | mksh )
# There are two implementations of Korn shell: AT&T (ksh93) and Mir (mksh).
# Systems may have them installed under those names, or as ksh, so those
# are recognized here. The obsolete ksh88 (subsumed by ksh93) and pdksh
# (subsumed by mksh) are not included, since they are unlikely to still
# be in use as interactive shells anywhere.
write_config "$HOME/.profile" \
"eval \"\$($rbenv_command init - ksh)\""
;;
fish )
write_config "${XDG_CONFIG_HOME:-$HOME/.config}/fish/config.fish" \
"status --is-interactive; and $rbenv_command init - --no-rehash fish | source"
;;
* )
printf 'unsupported shell: "%s"\n' "$shell" >&2
status=1
;;
esac
done
exit $status
fi
mkdir -p "${RBENV_ROOT}/"{shims,versions}
shell="${shells[0]}"
case "$shell" in
fish )
[ -n "$rbenv_in_path" ] || printf "set -gx PATH '%s/bin' \$PATH\n" "$root"
printf "set -gx PATH '%s/shims' \$PATH\n" "$RBENV_ROOT"
printf 'set -gx RBENV_SHELL %s\n' "$shell"
;;
* )
# shellcheck disable=SC2016
[ -n "$rbenv_in_path" ] || printf 'export PATH="%s/bin:${PATH}"\n' "$root"
# shellcheck disable=SC2016
printf 'export PATH="%s/shims:${PATH}"\n' "$RBENV_ROOT"
printf 'export RBENV_SHELL=%s\n' "$shell"
completion="${root}/completions/rbenv.${shell}"
if [ -r "$completion" ]; then
printf "source '%s'\n" "$completion"
fi
;;
esac
if [ -z "$no_rehash" ]; then
echo 'command rbenv rehash 2>/dev/null'
fi
IFS=$'\n' read -d '' -r -a commands <<<"$(rbenv-commands --sh)" || true
case "$shell" in
fish )
cat <<EOS
function rbenv
set command \$argv[1]
set -e argv[1]
switch "\$command"
case ${commands[*]}
rbenv "sh-\$command" \$argv|source
case '*'
command rbenv "\$command" \$argv
end
end
EOS
;;
ksh | ksh93 | mksh )
cat <<EOS
function rbenv {
typeset command
EOS
;;
* )
cat <<EOS
rbenv() {
local command
EOS
;;
esac
if [ "$shell" != "fish" ]; then
IFS="|"
cat <<EOS
command="\${1:-}"
if [ "\$#" -gt 0 ]; then
shift
fi
case "\$command" in
${commands[*]})
eval "\$(rbenv "sh-\$command" "\$@")";;
*)
command rbenv "\$command" "\$@";;
esac
}
EOS
fi
|
