CLI: Exit code is 0 when --check is specified and "no parser could be inferred" (since version 3.1)

[advanderveer]

Environments:

• Prettier Version: 3.1.0, 3.2.5, 3.0.3
• Running Prettier via: CLI
• Runtime: Node 20
• Operating System: MacOs
• Prettier plugins (if any): none

Steps to reproduce:

➜  atswui git:(ci_setup) ✗ yarn add prettier@3.0.3      
➤ YN0000: · Yarn 4.1.1
➤ YN0000: ┌ Resolution step
➤ YN0085: │ + prettier@npm:3.0.3
➤ YN0085: │ - prettier@npm:3.1.0
➤ YN0000: └ Completed
➤ YN0000: ┌ Fetch step
➤ YN0000: └ Completed in 0s 345ms
➤ YN0000: ┌ Link step
➤ YN0000: └ Completed in 0s 244ms
➤ YN0000: · Done in 0s 778ms
➜  atswui git:(ci_setup) ✗ yarn check:formatting  
Checking formatting...
[warn] src/app/app.component.html
yarn.lock
[error] No parser could be inferred for file "/Users/adam/Documents/Projects/github.com/crewlinker/atswui/yarn.lock".
[warn] Code style issues found in the above file. Run Prettier to fix.
➜  atswui git:(ci_setup) ✗ echo $?
1
➜  atswui git:(ci_setup) ✗ yarn add prettier@3.1.0
➤ YN0000: · Yarn 4.1.1
➤ YN0000: ┌ Resolution step
➤ YN0085: │ + prettier@npm:3.1.0
➤ YN0085: │ - prettier@npm:3.0.3
➤ YN0000: └ Completed
➤ YN0000: ┌ Fetch step
➤ YN0000: └ Completed in 0s 300ms
➤ YN0000: ┌ Link step
➤ YN0000: └ Completed in 0s 219ms
➤ YN0000: · Done in 0s 706ms
➜  atswui git:(ci_setup) ✗ yarn check:formatting  
Checking formatting...
yarn.lock
[error] No parser could be inferred for file "/Users/adam/Documents/Projects/github.com/crewlinker/atswui/yarn.lock".
All matched files use Prettier code style!
➜  atswui git:(ci_setup) ✗ echo $?
0

The command "check:formatting" runs: "check:formatting": "prettier --check \"**/*\""
Note: it is also an issue in the latest version

Expected behavior:
Should exit with status code 1
Actual behavior:
Exits with status code 0 since version 3.1.0

[sosukesuzuki]

I think this is a bug, but it is a breaking change and will be addressed in the next major version.