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101 lines
2.6 KiB
JavaScript
101 lines
2.6 KiB
JavaScript
import React, { PureComponent } from 'react'
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import Helmet from 'react-helmet'
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import PropTypes from 'prop-types'
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import { StaticQuery, graphql } from 'gatsby'
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const query = graphql`
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query {
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contentYaml {
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title
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tagline
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description
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url
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img {
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childImageSharp {
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resize(width: 980) {
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src
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}
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}
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}
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social {
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Twitter
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}
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gpg
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addressbook
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}
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}
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`
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const MetaTags = ({ title, description, url, image, meta }) => {
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return (
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<Helmet
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defaultTitle={`${meta.title.toLowerCase()} { ${meta.tagline.toLowerCase()} }`}
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titleTemplate={`%s // ${meta.title.toLowerCase()} { ${meta.tagline.toLowerCase()} }`}
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title={title}
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>
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<html lang="en" />
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{/* General tags */}
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<meta name="description" content={description} />
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<meta name="image" content={`${meta.url}${image}`} />
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<link rel="canonical" href={url} />
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{/* OpenGraph tags */}
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<meta property="og:url" content={url} />
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<meta property="og:title" content={title} />
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<meta property="og:description" content={description} />
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<meta property="og:image" content={`${meta.url}${image}`} />
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{/* Twitter Card tags */}
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<meta name="twitter:card" content="summary_large_image" />
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<meta name="twitter:creator" content={meta.social.Twitter} />
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<meta name="twitter:title" content={title} />
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<meta name="twitter:description" content={description} />
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<meta name="twitter:image" content={`${meta.url}${image}`} />
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</Helmet>
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)
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}
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MetaTags.propTypes = {
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title: PropTypes.string,
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description: PropTypes.string,
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url: PropTypes.string,
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image: PropTypes.string,
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meta: PropTypes.object
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}
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export default class SEO extends PureComponent {
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static propTypes = {
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project: PropTypes.object
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}
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render() {
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return (
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<StaticQuery
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query={query}
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render={data => {
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const { project } = this.props
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const meta = data.contentYaml
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const title = (project && project.title) || null
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const description =
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(project && project.fields.excerpt) || meta.description
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const image =
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(project && project.img.childImageSharp.twitterImage.src) ||
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meta.img.childImageSharp.resize.src
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const url = (project && `${meta.url}${project.slug}`) || meta.url
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return (
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<MetaTags
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title={title}
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description={description}
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url={url}
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image={image}
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meta={meta}
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/>
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)
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}}
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/>
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)
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}
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}
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