show user-friendly github.com urls for tabular data resources (#104)

and rewrite them back to raw github user conent url for loading data from github repositories into table view.

Author: RandomFractals

src/commands/listDataResources.ts

@@ -40,11 +40,10 @@ async function listDataResources(dataPackageUri: Uri): Promise<void> {
 	const dataResources: Array<QuickPickItem> = [];
 	dataPackage.resources.forEach((resource: any) => {
 		if (resource.tabular) { // supportedDataFormats.includes(resource.descriptor.format)) {
-			const dataRepositoryUrl: string = ''; // `https://github.com/${dataPackage.user}/${dataPackage.repo}`;
 			dataResources.push({
 				label: `$(table) ${resource.name}`,
 				description: dataPackage.title,
-				detail: resource.source
+				detail: fileUtils.convertToGitHubRepositoryUrl(resource.source)
 			});
 		}
 	});
@@ -56,7 +55,7 @@ async function listDataResources(dataPackageUri: Uri): Promise<void> {
 		let dataResourceUrl: string | undefined = selectedDataResource.detail;
 		if (dataResourceUrl) {
 			// create tabular data resource Uri and display a table view
-			const dataResourceUri: Uri = Uri.parse(dataResourceUrl);
+			const dataResourceUri: Uri = Uri.parse(fileUtils.convertToGitHubContentUrl(dataResourceUrl));
 			commands.executeCommand(ViewCommands.viewTable, dataResourceUri);
 		}
 	}

src/utils/fileUtils.ts

@@ -33,6 +33,26 @@ export function convertToGitHubContentUrl(dataFileUrl: string): string {
 	return gitHubContentUrl;
 }
 
+/**
+ * Converts github content url to user friendly github repository url for display
+ * and linking to external public data sources hosted on github.
+ * 
+ * @param dataFileUrl Github content data file url from a github repository.
+ * @returns User friendly github data file url for display, linking and copy/paste in a browser.
+ */
+export function convertToGitHubRepositoryUrl(dataFileUrl: string): string {
+	let gitHubContentUrl: string = dataFileUrl;
+	if (dataFileUrl.startsWith('https://raw.githubusercontent.com/')) {
+		// rewrite github content url to use github repository url for display
+		gitHubContentUrl = dataFileUrl.replace('https://raw.githubusercontent.com/', 'https://github.com/');
+
+		// add blob part
+		gitHubContentUrl = gitHubContentUrl.replace('/main/', '/blob/main/');
+		gitHubContentUrl = gitHubContentUrl.replace('/master/', '/blob/master/');
+	}
+	return gitHubContentUrl;
+}
+
 /**
  * Gets file name path token from a document Uri.
  *