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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| import React, { FC } from "react"; | ||
| import CodeBlock from '@theme/CodeBlock'; | ||
|
|
||
| function convertGitHubUrlToRaw(url: string): string { | ||
| const [user, repo, blob, branch, ...filePath] = url.replace("https://github.com/", "").split("/"); | ||
| const rawFileUrl = `https://raw.githubusercontent.com/${user}/${repo}/${branch}/${filePath.join("/")}`; | ||
| return rawFileUrl; | ||
| } | ||
|
|
||
| function getFileExtension(url: string): string { | ||
| const filename = url.split("/").pop(); | ||
| return filename.slice((Math.max(0, filename.lastIndexOf(".")) || Infinity) + 1); | ||
| } | ||
|
|
||
| function getFilePath(url: string): string { | ||
| return url.replace("https://github.com/", "").split("/").slice(4, Infinity).join("/"); | ||
| } | ||
|
|
||
| type EmbedGitHubFileContentProps = { | ||
| url: string, | ||
| loadingComponent?: JSX.Element, | ||
| errorComponent?: JSX.Element, | ||
| onLoad?: () => void | ||
| onError?: (e: Error) => void | ||
| } | ||
|
|
||
| const EmbedGitHubFileContent: FC<EmbedGitHubFileContentProps> = ({ | ||
| url, | ||
| loadingComponent, | ||
| errorComponent, | ||
| onLoad, | ||
| onError | ||
| }) => { | ||
| const [gitHubFileContent, setGitHubFileContent] = React.useState(""); | ||
| const [isLoading, setIsLoading] = React.useState(true); | ||
| const [errorOccurred, setErrorOccurred] = React.useState(false); | ||
|
|
||
| const gitHubUrlRegEx = /^https:\/\/github\.com\/.*\/.*\/blob\/.*/; | ||
| if (!url.match(gitHubUrlRegEx)) { | ||
| throw new Error("Invalid URL format"); | ||
| } | ||
|
|
||
| React.useEffect(() => { | ||
| setGitHubFileContent(""); | ||
| setIsLoading(true); | ||
| setErrorOccurred(false); | ||
|
|
||
| const rawFileUrl = convertGitHubUrlToRaw(url); | ||
|
|
||
| const fetchGitHubFileContent = async () => { | ||
| try { | ||
| const response = await fetch(rawFileUrl, { | ||
| headers: { | ||
| "Content-Type": "text/plain; charset=utf-8", | ||
| }, | ||
| }); | ||
|
|
||
| if (!response.ok) { | ||
| setErrorOccurred(true); | ||
| onError(new Error()); | ||
| } else { | ||
| const text = await response.text(); | ||
| setGitHubFileContent(text); | ||
| setIsLoading(false); | ||
| onLoad(); | ||
| } | ||
| } catch (err) { | ||
| setErrorOccurred(true); | ||
| onError(err); | ||
| } | ||
| }; | ||
|
|
||
| fetchGitHubFileContent(); | ||
| }, [url, onLoad, onError]); | ||
|
|
||
| if (errorOccurred) { | ||
| return errorComponent; | ||
| } | ||
|
|
||
| if (isLoading) { | ||
| return loadingComponent; | ||
| } | ||
|
|
||
| return ( | ||
| <CodeBlock language={getFileExtension(url)} title={getFilePath(url)}>{gitHubFileContent}</CodeBlock> | ||
| ); | ||
| } | ||
|
|
||
| EmbedGitHubFileContent.defaultProps = { | ||
| loadingComponent: <p>loading...</p>, | ||
| errorComponent: <p>an error occured.</p>, | ||
| onLoad: () => {}, | ||
| onError: (e) => console.log(e) | ||
| }; | ||
|
|
||
| export default EmbedGitHubFileContent; |