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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2021-11-26 17:05:53 +0000 (Fri, 26 Nov 2021)
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#
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# https://github.com/HariSekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(dirname "${BASH_SOURCE[0]}")"
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# shellcheck disable=SC1090
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Templates a given Helm chart for local declaratively tracked and auto-repaired Kustomize deployments
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Used to quickly update various GitOps configuration versions - see https://github.com/HariSekhon/Kubernetes-configs
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Requires helm to be installed
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Tested on Helm 3.7.1
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="<repo-url> <repo/chart> [--version <version> -n <namespace> -f values.yaml ... <helm_options>]"
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help_usage "$@"
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min_args 2 "$@"
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repo_url="$1"
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chart="$2"
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shift || :
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shift || :
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# doesn't really matter what this repo name is as long as it's consistent and can infer what it should be from the chart call
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repo="${chart%%/*}"
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release_name="${chart##*/}" # for simplicity the release name can be the same as the chart, which is fine for most cases
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if ! helm repo list | grep -q "^${repo}[[:space:]]"; then
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helm repo add "$repo" "$repo_url"
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fi
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helm template "$release_name" "$chart" "$@"
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