pyenv/libexec/rbenv-which

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#!/usr/bin/env bash
#
# Summary: Display the full path to an executable
#
# Usage: rbenv which <command>
#
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# Displays the full path to the executable that rbenv will invoke when
# you run the given command.
set -e
[ -n "$RBENV_DEBUG" ] && set -x
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# Provide rbenv completions
if [ "$1" = "--complete" ]; then
exec rbenv shims --short
fi
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expand_path() {
if [ ! -d "$1" ]; then
return 1
fi
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local cwd="$(pwd)"
cd "$1"
pwd
cd "$cwd"
}
remove_from_path() {
local path_to_remove="$(expand_path "$1")"
local result=""
if [ -z "$path_to_remove" ]; then
echo "${PATH}"
return
fi
local paths
IFS=: paths=($PATH)
for path in "${paths[@]}"; do
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path="$(expand_path "$path" || true)"
if [ -n "$path" ] && [ "$path" != "$path_to_remove" ]; then
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result="${result}${path}:"
fi
done
echo "${result%:}"
}
RBENV_VERSION="$(rbenv-version-name)"
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RBENV_COMMAND="$1"
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if [ -z "$RBENV_COMMAND" ]; then
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rbenv-help --usage which >&2
exit 1
fi
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if [ "$RBENV_VERSION" = "system" ]; then
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PATH="$(remove_from_path "${RBENV_ROOT}/shims")"
RBENV_COMMAND_PATH="$(command -v "$RBENV_COMMAND" || true)"
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else
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RBENV_COMMAND_PATH="${RBENV_ROOT}/versions/${RBENV_VERSION}/bin/${RBENV_COMMAND}"
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fi
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for script in $(rbenv-hooks which); do
source "$script"
done
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if [ -x "$RBENV_COMMAND_PATH" ]; then
echo "$RBENV_COMMAND_PATH"
else
echo "rbenv: $RBENV_COMMAND: command not found" >&2
versions="$(rbenv-whence "$RBENV_COMMAND" || true)"
if [ -n "$versions" ]; then
{ echo
echo "The \`$1' command exists in these Ruby versions:"
echo "$versions" | sed 's/^/ /g'
echo
} >&2
fi
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exit 127
fi