1#!/usr/bin/env bash
2# Copyright 2021 The Kubernetes Authors.
3# SPDX-License-Identifier: Apache-2.0
4
5set -o errexit -o nounset -o pipefail -o posix
6
7PKG_PATH="sigs.k8s.io/cli-utils"
8
9REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
10
11# Make a new temporary GOPATH directory
12export GOPATH=$(mktemp -d -t cli-utils-gopath.XXXXXXXXXX)
13# Clean up on exit (modcache has read-only files, so clean that first)
14trap "go clean -modcache && rm '${GOPATH}/src/${PKG_PATH}' && rm -rf '${GOPATH}'" EXIT
15
16# Make sure we can read, write, and delete
17chmod a+rw "${GOPATH}"
18
19# Use a temporary cache
20export GOCACHE="${GOPATH}/cache"
21
22# Create a symlink for the local repo in the GOPATH
23mkdir -p "${GOPATH}/src/${PKG_PATH}"
24rm -r "${GOPATH}/src/${PKG_PATH}"
25ln -s "${REPO_ROOT}" "${GOPATH}/src/${PKG_PATH}"
26
27# Make sure our own Go binaries are in PATH.
28export PATH="${GOPATH}/bin:${PATH}"
29
30# Set GOROOT so binaries that parse code can work properly.
31export GOROOT=$(go env GOROOT)
32
33# Unset GOBIN in case it already exists in the current session.
34unset GOBIN
35
36# enter the GOPATH before executing the command
37cd "${GOPATH}/src/${PKG_PATH}"
38
39# Run the user-provided command.
40"${@}"
41
42# exit the GOPATH before deleting it
43cd "${REPO_ROOT}"
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