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kustomize/plugin/untested/v1/gogetter/GoGetter
2020-12-01 07:32:44 -08:00

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#!/bin/bash
# Copyright 2019 The Kubernetes Authors.
# SPDX-License-Identifier: Apache-2.0
# HashiCorp go-getter
#
# Reads a file like this
#
# apiVersion: someteam.example.com/v1
# kind: GoGetter
# metadata:
# name: example
# url: github.com/kustless/kustomize-examples.git
# # subPath: base # (optional) relative path in the package
# # command: cat *.yaml # (optional) build command, default `kustomize build $subPath`
#
# download kustomize layes and build it to stdout
#
# Example execution:
# ./plugin/someteam.example.com/v1/gogetter/GoGetter configFile.yaml
#
# TODO: cache downloads
set -e
# YAML parsing function borrowed from ChartInflator
function parseYaml {
local file=$1
while read -r line
do
local k=${line%%:*}
local v=${line#*:}
local t=${v#"${v%%[![:space:]]*}"} # trim leading space
if [ "$k" == "url" ]; then url=$t
elif [ "$k" == "subPath" ]; then subPath=$t
elif [ "$k" == "command" ]; then command=$t
fi
done <"$file"
}
TMP_DIR=$(mktemp -d)
parseYaml $1
if [ -z "$command" ]; then
command="kustomize build"
fi
go-getter $url $TMP_DIR/got 2> /dev/null
(cd $TMP_DIR/got/$subPath; $command)
/bin/rm -rf $TMP_DIR