201 lines
6.5 KiB
JavaScript
201 lines
6.5 KiB
JavaScript
import Tabs, { Tab } from '@hashicorp/react-tabs'
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import EnterpriseAlertBase from '@hashicorp/react-enterprise-alert'
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/**
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* ConfigEntryReference renders the reference docs for a config entry.
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* It creates two tabs, one for HCL docs and one for Kubernetes docs.
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*
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* @param {array<object>} keys Array of objects, that describe all
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* keys that can be set for this config entry.
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* @param {boolean} topLevel Indicates this is a reference block that contains
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* the top level keys vs a reference block that documents
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* nested keys and that is separated out for clarity.
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*
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* The objects in the keys array support the following keys:
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* - name <required>: the name of the HCL key, e.g. Name, Listener. This case sensitive.
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* - description <required>: the description of the key. If this key has different descriptions
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* for HCL vs. Kube YAML then description can be an object:
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* description: {
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* hcl: 'HCL description',
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* yaml: 'YAML description'
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* }
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* - hcl <optional>: a boolean to indicate if this key should be shown in the HCL
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* documentation. Defaults to true.
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* - yaml <optional>: a boolean to indicate if this key should be shown in the YAML
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* documentation. Defaults to true.
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* - enterprise <optional>: a boolean to indicate if this key is Consul Enterprise
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* only. Defaults to false.
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* - children <optional>: accepts an array of keys that must be set under this key.
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* The schema for these keys is the same as the top level keys.
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* - type <optional>: the type and default of this key, e.g. string: "default".
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*/
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export default function ConfigEntryReference({ keys, topLevel = true }) {
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// Kube needs to have its non-top-level keys nested under a "spec" key.
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const kubeKeys = topLevel ? toKubeKeys(keys) : keys
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return (
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<Tabs>
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<Tab heading="HCL">{renderKeys(keys, true)}</Tab>
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<Tab heading="Kubernetes YAML">{renderKeys(kubeKeys, false)}</Tab>
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</Tabs>
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)
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}
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/**
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* Renders keys as HTML. It works recursively through all keys.
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* @param {array} keys
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* @param {boolean} isHCLTab
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* @returns {JSX.Element|null}
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*/
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function renderKeys(keys, isHCLTab) {
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if (!keys) return null
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return <ul>{keys.map((key) => renderKey(key, isHCLTab))}</ul>
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}
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/**
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* Renders a single key as its HTML element.
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*
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* @param {object} key
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* @param {boolean} isHCLTab
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* @returns {JSX.Element|null}
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*/
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function renderKey(key, isHCLTab) {
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if (!key.name) return null
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if (isHCLTab && key.hcl === false) return null
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if (!isHCLTab && key.yaml === false) return null
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const keyName = isHCLTab ? key.name : toYAMLKeyName(key.name)
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let description = ''
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if (key.description) {
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if (typeof key.description === 'string') {
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description = key.description
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} else if (!isHCLTab && key.description.yaml) {
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description = key.description.yaml
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} else if (key.description.hcl) {
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description = key.description.hcl
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}
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}
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const htmlDescription = description && markdownToHtml(' - ' + description)
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const type = key.type && <code>{`(${key.type})`}</code>
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const enterpriseAlert = key.enterprise && <EnterpriseAlert inline />
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const keyLower = keyName.toLowerCase()
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// NOTE: This code copies from https://github.com/hashicorp/remark-plugins/blob/df606efc844319a2532ec54e4cf6ff2d575108ff/plugins/anchor-links/index.js
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// to ensure the styling of each bullet is correct. The two locations should be kept
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// in sync.
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return (
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<li key={keyLower} className="g-type-long-body">
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<a id={keyLower} className="__target-lic" aria-hidden="" />
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<p>
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<a
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href={'#' + keyLower}
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aria-label={keyLower + ' permalink'}
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className="__permalink-lic"
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>
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<code>{keyName}</code>
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</a>{' '}
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{type}
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{enterpriseAlert}
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<span dangerouslySetInnerHTML={{ __html: htmlDescription }} />
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</p>
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{renderKeys(key.children, isHCLTab)}
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</li>
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)
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}
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/**
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* Constructs a keys object for Kubernetes out of HCL keys.
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* Really all this entails is nesting the correct keys under the Kubernetes
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* 'spec' key since in HCL there is no 'spec' key.
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*
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* @param {array} keys
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* @returns {array}
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*/
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function toKubeKeys(keys) {
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const topLevelKeys = keys.filter((key) => isTopLevelKubeKey(key.name))
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const keysUnderSpec = keys.filter((key) => !isTopLevelKubeKey(key.name))
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return topLevelKeys.concat([{ name: 'spec', children: keysUnderSpec }])
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}
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/**
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* Converts an HCL key name to a kube yaml key name.
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*
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* Examples:
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* - Protocol => protocol
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* - MeshGateway => meshGateway
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* - ACLToken => aclToken
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* - HTTP => http
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*
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* @param {string} hclKey
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* @returns {string}
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*/
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function toYAMLKeyName(hclKey) {
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// Handle something like HTTP.
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if (hclKey.toUpperCase() === hclKey) {
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return hclKey.toLowerCase()
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}
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let indexFirstLowercaseChar = hclKey
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.split('')
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.findIndex((c) => c === c.toLowerCase())
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// Special case to handle something like ACLToken => aclToken.
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if (indexFirstLowercaseChar > 1) {
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indexFirstLowercaseChar--
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}
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let lowercasePortion = ''
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for (let i = 0; i < indexFirstLowercaseChar; i++) {
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lowercasePortion += hclKey[i].toLowerCase()
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}
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return (
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lowercasePortion + hclKey.split('').slice(indexFirstLowercaseChar).join('')
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)
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}
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/**
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* Converts a markdown string to its HTML representation.
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* Currently it only supports inline code blocks (e.g. `code here`) and
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* links (e.g. [link text](http://link-url) because these were the most
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* commonly used markdown features in the key descriptions.
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*
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* @param {string} markdown the input markdown
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* @returns {string}
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*/
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function markdownToHtml(markdown) {
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let html = markdown
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// Replace inline code blocks defined by backticks with <code></code>.
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while (html.indexOf('`') > 0) {
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html = html.replace('`', '<code>')
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if (html.indexOf('`') <= 0) {
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throw new Error(`'${markdown} does not have matching '\`' characters`)
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}
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html = html.replace('`', '</code>')
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}
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// Replace links, e.g. [link text](http://link-url),
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// with <a href="http://link-url">link text</a>.
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return html.replace(/\[(.*?)]\((.*?)\)/g, '<a href="$2">$1</a>')
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}
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/**
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* Returns true if key is a key used at the top level of a CRD. By top level we
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* mean not nested under any other key.
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*
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* @param {string} name name of the key
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*
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* @return {boolean}
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*/
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function isTopLevelKubeKey(name) {
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return (
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name.toLowerCase() === 'metadata' ||
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name.toLowerCase() === 'kind' ||
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name.toLowerCase() === 'apiversion'
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)
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}
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function EnterpriseAlert(props) {
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return <EnterpriseAlertBase product={'consul'} {...props} />
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}
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