Typescript matchers doesn't recognize tsc output with pretty option enabled

[kijowski]

• VSCode Version: 1.21.1
• OS Version: Windows 10

Steps to Reproduce:

1. Install tsc 2.7.2
2. Create fresh project with tsc --init
3. Create HelloWorlds.ts
4. Edit tsconfig.json file and add "pretty": true
5. Write some invalid code e.g. const x: number = 1 + "1"; . There should be a problem reported in problems tab.
6. Close the HelloWorlds.ts editor window. Error from problems tab disappear.
7. Run Task > pick the build task
8. After compilation ends there are no problems in the problems tab.
9. Run Task > pick the watch task
10. Compilation ends but Building... in the status line doesn't disappear.

Does this issue occur when all extensions are disabled?: Yes

It seems that enabling pretty option in tsconfig breaks $tsc and $tsc-watch problem matchers. Enabling this option changes the output of typescript compilation (e.g. timestamp are in square brackets) and this is probably confusing above-mentioned matchers.

There is a connected bug report #44018 but the resolution there went in other direction (multiple lines from terminal #44192).

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• Selection of problem matcher is not very intuitive when running a task (#29562)

[dbaeumer]

Fixed by tweaking the problem matcher