.json inputs not allowed outside of rootDir

[duarten]

TypeScript Version: Version 3.8.3

Search Terms: json rootDir

Code

Folder structure:

src/test.ts
src/tsconfig.json
data/dummy.json

tsconfig:

{
    "compilerOptions": {
        "esModuleInterop": true,
        "resolveJsonModule": true,
        "rootDirs": [
            ".",
            "../data"
        ]
    }
}

test.ts:

import dummy from "./dummy.json"

console.log(dummy)

Expected behavior:

JSON printed to stdout.

Actual behavior:

The error: src/test.ts:1:19 - error TS6059: File 'repro/data/dummy.json' is not under 'rootDir' 'repro/src'. 'rootDir' is expected to contain all source files.

Playground Link:

Related Issues:

[sheetalkamat]

This does not repro and does not repro error with latest from master

c:\temp\test>dir /S
 Volume in drive C is OSDisk
 Volume Serial Number is F41A-DBC9

 Directory of c:\temp\test

04/21/2020  11:14 AM    <DIR>          .
04/21/2020  11:14 AM    <DIR>          ..
04/21/2020  11:12 AM    <DIR>          data
04/21/2020  11:14 AM    <DIR>          src
               0 File(s)              0 bytes

 Directory of c:\temp\test\data

04/21/2020  11:12 AM    <DIR>          .
04/21/2020  11:12 AM    <DIR>          ..
04/21/2020  11:13 AM                11 dummy.json
               1 File(s)             11 bytes

 Directory of c:\temp\test\src

04/21/2020  11:14 AM    <DIR>          .
04/21/2020  11:14 AM    <DIR>          ..
04/21/2020  11:14 AM               286 test.js
04/21/2020  11:11 AM                54 test.ts
04/21/2020  11:11 AM               182 tsconfig.json
               3 File(s)            522 bytes

     Total Files Listed:
               4 File(s)            533 bytes
               8 Dir(s)  736,388,980,736 bytes free

c:\temp\test>node c:\TypeScript\built\local\tsc.js --listFiles --p src
c:/TypeScript/built/local/lib.d.ts
c:/TypeScript/built/local/lib.es5.d.ts
c:/TypeScript/built/local/lib.dom.d.ts
c:/TypeScript/built/local/lib.webworker.importscripts.d.ts
c:/TypeScript/built/local/lib.scripthost.d.ts
c:/temp/test/data/dummy.json
c:/temp/test/src/test.ts

[duarten]

Specifying rootDir is an integral part of this issue. The command to run is tsc --project src/tsconfig.json --outDir lib/ --rootDir src. That will reproduce it:

tsc --project src/tsconfig.json --outDir lib/ --rootDir src
src/test.ts:1:19 - error TS6059: File '/Users/duarten/code/ts-issue/data/dummy.json' is not under 'rootDir' '/Users/duarten/code/ts-issue/src'. 'rootDir' is expected to contain all source files.

1 import dummy from "./dummy.json"
                    ~~~~~~~~~~~~~~


Found 1 error.

[sheetalkamat]

The issue is not rootDir but outDir when you specify outDir you are saying all the files in the program need to go into the outDir folder and the common source directory for all the files is rootDir. Clearly dummy.json is not in it hence the error. This is intended behavior

c:\temp\test>node c:\TypeScript\built\local\tsc.js  -p src  --rootDir src

c:\temp\test>node c:\TypeScript\built\local\tsc.js  -p src  --rootDir src --outDir lib
src/test.ts:1:19 - error TS6059: File 'c:/temp/test/data/dummy.json' is not under 'rootDir' 'c:/temp/test/src'. 'rootDir' is expected to contain all source files.

1 import dummy from "./dummy.json"
                    ~~~~~~~~~~~~~~

[duarten]

Why does TypeScript need to put the JSON files in the outDir? Couldn't it treat them like d.ts files, which can be outside of the rootDir?

[sheetalkamat]

.json files are like .js files and will be emitted .. only special casing is they are emitted if the emit would overwrite them

[duarten]

I see, thanks! Although I find it weird that json files are treated differently than, say, css files.

[typescript-bot]

This issue has been marked 'Working as Intended' and has seen no recent activity. It has been automatically closed for house-keeping purposes.