feat: Add BA support for SvelteKit

[nicholas-codecov]

Description

This PR adds in direct support for SvelteKit apps through the introduction of a new plugin that is tailored for SvelteKit.

Closes #94

Code Example

// vite.config.ts
import { sveltekit } from "@sveltejs/kit/vite";
import { defineConfig } from "vite";
import { codecovSvelteKitPlugin } from "@codecov/sveltekit-plugin";

export default defineConfig({
  plugins: [
    sveltekit(),
    // Put the Codecov SvelteKit plugin after all other plugins
    codecovSvelteKitPlugin({
      enableBundleAnalysis: true,
      bundleName: "example-sveltekit-bundle",
      uploadToken: process.env.CODECOV_TOKEN,
    }),
  ],
});

Notable Changes

• Add in new @codecov/sveltekit-plugin
• Add in example SvelteKit app
• Add in integration tests for new plugin
• Small tweaks

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 28.85906% with 106 lines in your changes are missing coverage. Please review.

Project coverage is 77.88%. Comparing base (ddcd055) to head (72b56fd).

:white_check_mark: All tests successful. No failed tests found.

Files	Patch %	Lines
packages/sveltekit-plugin/src/index.ts	0.00%	72 Missing and 1 partial :warning:
...t-bundle-analysis/sveltekitBundleAnalysisPlugin.ts	50.00%	21 Missing :warning:
packages/rollup-plugin/src/index.ts	0.00%	4 Missing :warning:
packages/vite-plugin/src/index.ts	0.00%	4 Missing :warning:
packages/webpack-plugin/src/index.ts	0.00%	4 Missing :warning:

Additional details and impacted files

| [Components](https://app.codecov.io/gh/codecov/codecov-javascript-bundler-plugins/pull/126/components?src=pr&el=components&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=codecov) | Coverage Δ | | |---|---|---| | [Plugin core](https://app.codecov.io/gh/codecov/codecov-javascript-bundler-plugins/pull/126/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=codecov) | `97.87% <ø> (ø)` | | | [Rollup plugin](https://app.codecov.io/gh/codecov/codecov-javascript-bundler-plugins/pull/126/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=codecov) | `10.44% <0.00%> (-0.12%)` | :arrow_down: | | [Vite plugin](https://app.codecov.io/gh/codecov/codecov-javascript-bundler-plugins/pull/126/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=codecov) | `10.60% <0.00%> (-0.13%)` | :arrow_down: | | [Webpack plugin](https://app.codecov.io/gh/codecov/codecov-javascript-bundler-plugins/pull/126/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=codecov) | `26.20% <0.00%> (-0.24%)` | :arrow_down: |

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[codecov[bot]]

Bundle Report

Changes will decrease total bundle size by 27.8kB :arrow_down:

Bundle name	Size	Change
@codecov/example-next-app-client-array-push	894.72kB	446 bytes :arrow_up:
@codecov/sveltekit-plugin-cjs	1.3kB	1.3kB :arrow_up:
@codecov/example-rollup-app-iife	95.45kB	0 bytes
@codecov/sveltekit-plugin-esm	909 bytes	909 bytes :arrow_up:
@codecov/bundler-plugin-core-cjs	41.95kB	0 bytes
@codecov/nuxt-plugin-cjs	1.38kB	0 bytes
@codecov/nuxt-plugin-esm	855 bytes	0 bytes
@codecov/bundler-plugin-core-esm	6.56kB	31.05kB :arrow_down:
@codecov/rollup-plugin-cjs	2.93kB	0 bytes
@codecov/vite-plugin-cjs	2.92kB	0 bytes
@codecov/webpack-plugin-cjs	3.56kB	0 bytes
@codecov/rollup-plugin-esm	1.32kB	155 bytes :arrow_up:
@codecov/vite-plugin-esm	1.26kB	153 bytes :arrow_up:
@codecov/webpack-plugin-esm	1.44kB	156 bytes :arrow_up:
@codecov/example-vite-app-esm	150.61kB	0 bytes
@codecov/example-webpack-app-array-push	71.19kB	0 bytes
@codecov/example-next-app-server-cjs	325.72kB	131 bytes :arrow_up:
@codecov/example-next-app-edge-server-array-push	306 bytes	0 bytes

[codecov-staging[bot]]

Bundle Report

Changes will decrease total bundle size by 210.88kB :arrow_down:

Bundle name	Size	Change
@codecov/rollup-plugin-cjs	2.93kB	0 bytes
@codecov/rollup-plugin-esm	1.32kB	155 bytes :arrow_up:
@codecov/bundler-plugin-core-esm	37.6kB	31.05kB :arrow_up:
@codecov/webpack-plugin-cjs	3.56kB	3.56kB :arrow_up:
@codecov/example-next-app-client-array-push	894.72kB	446 bytes :arrow_up:
@codecov/example-webpack-app-array-push	71.19kB	0 bytes
@codecov/nuxt-plugin-esm	855 bytes	0 bytes
@codecov/vite-plugin-cjs	2.92kB	0 bytes
@codecov/webpack-plugin-esm	1.44kB	156 bytes :arrow_up:
@codecov/sveltekit-plugin-esm	909 bytes	909 bytes :arrow_up:
@codecov/vite-plugin-esm	1.26kB	153 bytes :arrow_up:
@codecov/bundler-plugin-core-cjs	41.95kB	0 bytes
@codecov/example-next-app-server-cjs	325.72kB	131 bytes :arrow_up:
@codecov/example-next-app-edge-server-array-push	306 bytes	0 bytes
@codecov/example-rollup-app-iife	(removed)	95.45kB :arrow_down:
@codecov/example-vite-app-esm	(removed)	150.61kB :arrow_down:
@codecov/nuxt-plugin-cjs	(removed)	1.38kB :arrow_down:

[codecov-notifications[bot]]

Codecov Report

Attention: Patch coverage is 28.85906% with 106 lines in your changes are missing coverage. Please review.

:white_check_mark: All tests successful. No failed tests found.

Files	Patch %	Lines
packages/sveltekit-plugin/src/index.ts	0.00%	72 Missing and 1 partial :warning:
...t-bundle-analysis/sveltekitBundleAnalysisPlugin.ts	50.00%	21 Missing :warning:
packages/rollup-plugin/src/index.ts	0.00%	4 Missing :warning:
packages/vite-plugin/src/index.ts	0.00%	4 Missing :warning:
packages/webpack-plugin/src/index.ts	0.00%	4 Missing :warning:

Components	Coverage Δ
Plugin core	97.87% <ø> (ø)
Rollup plugin	10.44% <0.00%> (-0.12%)	:arrow_down:
Vite plugin	10.60% <0.00%> (-0.13%)	:arrow_down:
Webpack plugin	26.20% <0.00%> (-0.24%)	:arrow_down:

:loudspeaker: Thoughts on this report? Let us know!