34 lines
929 B
TypeScript
34 lines
929 B
TypeScript
const baseUrl = process.env.GATSBY_BASE_URL
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export function getBaseUrl(): string {
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if (baseUrl) {
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return baseUrl
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}
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/*
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This is a special case for production.
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We want to be able to build the front end with no value set for
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`GATSBY_BASE_URL` so that we can deploy a build to staging
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and then promote the exact same build to production.
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When deployed to staging, we want the frontend on
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https://staging.shields.io/ to generate badges with the base
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https://staging.shields.io/
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When we promote to production we want https://shields.io/ and
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https://www.shields.io/ to both generate badges with the base
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https://img.shields.io/
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*/
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try {
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const { protocol, hostname } = window.location
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if (['shields.io', 'www.shields.io'].includes(hostname)) {
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return 'https://img.shields.io'
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}
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return `${protocol}//${hostname}`
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} catch (e) {
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// server-side rendering
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return ''
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}
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}
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