pyenv/libexec/rbenv-which
Mislav Marohnić 6bb7f07d2d Avoid rbenv-exec calling out to rbenv-version-name twice
Running any shim (and thus `rbenv-exec`) would always execute
`rbenv-version-name` twice: once in `rbenv-exec` and another time in
`rbenv-which`, even though RBENV_VERSION variable would have already
been populated at this point.

Now RBENV_VERSION is respected within `rbenv-which`.
2014-10-13 12:26:43 +02:00

92 lines
1.8 KiB
Bash
Executable file

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