With VS Code extension, "Quarto: Insert Code Cell" requires user to choose language for each new chunk

[juliasilge]

When using the VS Code extension, you can use "Quarto: Insert Code Cell" (such as via its keyboard shortcut) to make a new code cell/chunk. However, it requires the user to choose the language every time:

new-chunk.mov

We are hearing from users that they would prefer the RStudio behavior where making a new code chunk uses the language from the previous code chunk. It is fine to have users choose for the first chunk, but it doesn't feel great to have to keep choosing the language over and over.

[mcanouil]

FYI:

• [VS Code] add setting for default language #405

[mikemahoney218]

A bit of a delayed response but FWIW, I think this is meaningfully distinct from #405. Ideally this would mean the language of each file is detected, irrespective of user profile settings, and automatically populated for all but the first cell.

[jennybc]

I'm bumping into this very hard right now, working on many existing .Rmd vignettes in a package. I did upvote above, but that didn't seem like a strong enough endorsement for this issue 😅 It would be really awesome to not have to replace python with r repeatedly. The current situation feels pretty hostile to an R user. (I'm experiencing this with an .Rmd not a .qmd but I assume it's for the same reasons / would have the same fix? Although you could argue for a default of r in .Rmd)

[DavisVaughan]

See #539 for the direct comparison with RStudio, strongly agree we should tweak this

[DavisVaughan]

Looks super easy, let me give it a shot

quarto/apps/vscode/src/providers/insert.ts

Lines 101 to 117 in f15c1f9

	// order by language
	const allLangs = ['python', 'r', 'julia', 'ojs', 'sql', 'bash', 'mermaid', 'dot'];
	const languages = language
	? [language, allLangs.filter(lang => lang !== language)]
	: allLangs;
	// insert snippet
	await commands.executeCommand("editor.action.insertSnippet", {
	snippet: [
	...(insertTopPaddingLine ? [""] : []),
	"```{${1|" + languages.join(",") + "|}}",
	"${TM_SELECTED_TEXT}$0",
	"```"
	].join("\n"),
	});
	}
	}