Published on

Visual Studio Code — finding all files that *do not* contain a certain string

I was running a Karma test suite containing a few hundred unit tests, when I got into this error:

Can’t bind to ‘some-property’ since it isn’t a known property of ‘some-component’

Now, I happen to know that this is caused by a missing [NO_ERRORS_SCHEMA] in one or more of the spec files.

But — the Karma tests runner does not provide any info about the actual names of the files having this issue.

So — how to solve this problem then: “get a list of all *.spec.ts files in my project that do not contain the NO_ERRORS_SCHEMA string”?

Luckily, there’s a Visual Studio Code extension for that: ReverseSearch.

To find all files that do not contain a certain string:

Press Ctrl + P, open Reverse Search:

1

Enter a string. We'll use NO_ERRORS_SCHEMA here:

2

Choose files to include. We'll use "*/.component.spec.ts" here:

3

Choose files to exclude. We'll use "!*/.component.spec.ts" here:

4

Done! Matching files will be presented in the Output panel:

5

Cool, right?