Remove 'del' package

[j-oliveras]

Starting on v4.0.0 it includes types declarations: https://github.com/sindresorhus/del/releases/tag/v4.0.0

Needs microsoft/types-publisher#586 to pass tests.

• Use a meaningful title for the pull request. Include the name of the package modified.

• Test the change in your own code. (Compile and run.)

• Add or edit tests to reflect the change. (Run with npm test.)

• Follow the advice from the readme.

• Avoid common mistakes.

• Run npm run lint package-name (or tsc if no tslint.json is present).

• If a package was never on DefinitelyTyped, you don't need to do anything. (If you wrote a package and provided types, you don't need to register it with us.)

• Delete the package's directory.

• Add it to notNeededPackages.json.

[typescript-bot]

@j-oliveras Thank you for submitting this PR!

🔔 @AyaMorisawa @BendingBender @bitjson @GiedriusGrabauskas @vladshcherbin @tkqubo - please review this PR in the next few days. Be sure to explicitly select Approve or Request Changes in the GitHub UI so I know what's going on.

If no reviewer appears after a week, a DefinitelyTyped maintainer will review the PR instead.

[typescript-bot]

@j-oliveras The Travis CI build failed! Please review the logs for more information.

Once you've pushed the fixes, the build will automatically re-run. Thanks!

[j-oliveras]

Only coping from opening post: needs microsoft/types-publisher#586 to pass tests.

[j-oliveras]

Now, tests for gulp and vinyl-paths fails on TS 2.0 because that don't have Readonly. Is only used on tests, so a workaround is remove del from the tests.

rollup-plugin-delete fails on rollup declaration file (TS 2.3) with node_modules/rollup/dist/rollup.d.ts(376,24): error TS1110: Type expected.. The package is needed because the options extends from del. Is it caused because del own type not compatible with rollup-plugin-delete?

On rollup-plugin-delete seems to fails on rollup interface RollupOutput declaration:

export interface RollupOutput {
	output: [OutputChunk, ...(OutputChunk | OutputAsset)[]];
}

@sandersn what to do in this cases?

[sandersn]

rollup-plugin-delete's error actually comes from rollup, which was already required. I'm not sure why it's failing now -- perhaps it was cached on the build server until now? In any case, rollup.d.ts used to have Typescript 2.3-compatible types before 1.2.0, but upgraded them at rollup/rollup#2679, which released on February 17.

So you have two choices:

1. Make rollup-plugin-delete require TS 3.2.
2. Make rollup-plugin-delete depend on rollup <1.2.0.

I recommend (2) since 3.2 is a pretty new version of Typescript still.

[sandersn]

The reason rollup didn't fail until now is that the only time that we try to compile a package with all versions of typescript is when the package is actually changed. When it's just a dependent, it's only tested with typescript@next.

[j-oliveras]

Done: changed gulp and vinyl-paths to not require del and make rollup on rollup-plugin-delete to < 1.2.0

[typescript-bot]

I just published @types/rollup-plugin-delete@0.2.1 to npm.