Parent directory named 'lwc' outside the app directory causes deploy to fail with cryptic message.

[dbreese]

Summary

A parent directory named 'lwc' will cause deployments to fail with cryptic error message:

$ pwd 
~/projects/lwc/TestApp

$ sfdx force:source:deploy -p force-app/main/default/lwc
*** Deploying with SOAP API v53.0 ***
Deploy ID: 0Afx000000012nDCAQ
DEPLOY PROGRESS | ████████████████████████████████████████ | 1/1 Components

=== Component Failures [1]
Type   Name     Problem
─────  ───────  ────────────────────────────────────────────────────────────────────────────────────────
Error  TestApp  Unable to build Lightning Component source for markup://c:TestApp: Invalid suffix: json.

ERROR running force:source:deploy:  Deploy failed.

** Even parent directories up the dir tree named "lwc" will cause the issue too. For example, ~/dev/lwc/someother/someother2/someother3/MyApp.

Steps To Reproduce:

Repository to reproduce: dreamhouse-lwc

1. Create a parent directory to contain 1 or more apps. For example, ~/dev/lwc
2. cd ~/dev/lwc
3. Create any force app and authorize an org

$ sfdx force:project:create -n TestApp
$ cd TestApp
$ sfdx auth:web:login -a LocalHostDevHub -r https://localhost:6101 -s
Successfully authorized [email protected] with org ID 00Dxx0000006H7bEAE

4. Create a skeleton LWC:

$ sfdx force:lightning:component:create -n myTest --type lwc -d force-app/main/default/lwc

5. Attempt to deploy and you will see the issue:

$ sfdx force:source:deploy -p force-app/main/default/lwc/myTest

Expected result

Should deploy.

Actual result

Cryptic error message is shown:

Error  TestApp  Unable to build Lightning Component source for markup://c:TestApp: Invalid suffix: json.

System Information

sfdx version --verbose --json
{
	"cliVersion": "sfdx-cli/7.136.2",
	"architecture": "darwin-x64",
	"nodeVersion": "node-v16.13.1",
	"pluginVersions": [
		"@oclif/plugin-autocomplete 0.3.0 (core)",
		"@oclif/plugin-commands 1.3.0 (core)",
		"@oclif/plugin-help 3.3.1 (core)",
		"@oclif/plugin-not-found 1.2.6 (core)",
		"@oclif/plugin-plugins 1.10.11 (core)",
		"@oclif/plugin-update 1.5.0 (core)",
		"@oclif/plugin-warn-if-update-available 1.7.3 (core)",
		"@oclif/plugin-which 1.0.4 (core)",
		"@salesforce/sfdx-plugin-lwc-test 0.1.7 (core)",
		"alias 1.2.0 (core)",
		"apex 0.8.0 (core)",
		"auth 1.8.1 (core)",
		"config 1.3.15 (core)",
		"custom-metadata 1.0.12 (core)",
		"data 0.6.8 (core)",
		"generator 1.2.1 (core)",
		"info 1.2.0 (core)",
		"limits 1.3.0 (core)",
		"org 1.11.1 (core)",
		"salesforce-alm 53.7.6 (core)",
		"schema 1.1.0 (core)",
		"sfdx-cli 7.136.2 (core)",
		"source 1.8.9 (core)",
		"telemetry 1.4.0 (core)",
		"templates 53.3.0 (core)",
		"trust 1.1.0 (core)",
		"user 1.7.0 (core)"
	],
	"osVersion": "Darwin 21.3.0"
}

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[WillieRuemmele]

I believe this is fixed as of ➜ sf -v @salesforce/cli/2.1.7 darwin-arm64 node v18.16.0

 ➜  mkdir lwc                        
➜  scratches 
 ➜  cd lwc         
➜  lwc 
 ➜  sfdx force project create -n TestApp                             
Warning: The "force project create" command has been deprecated. Use "project generate" instead.
target dir = /Users/william.ruemmele/projects/scratches/lwc
   create TestApp/config/project-scratch-def.json
   create TestApp/README.md
   create TestApp/sfdx-project.json
   create TestApp/.husky/pre-commit
   create TestApp/.vscode/extensions.json
   create TestApp/.vscode/launch.json
   create TestApp/.vscode/settings.json
   create TestApp/force-app/main/default/lwc/.eslintrc.json
   create TestApp/force-app/main/default/aura/.eslintrc.json
   create TestApp/scripts/soql/account.soql
   create TestApp/scripts/apex/hello.apex
   create TestApp/.eslintignore
   create TestApp/.forceignore
   create TestApp/.gitignore
   create TestApp/.prettierignore
   create TestApp/.prettierrc
   create TestApp/jest.config.js
   create TestApp/package.json

➜  lwc 
 ➜  cd TestApp 
➜  TestApp 
 ➜  oc

Creating Scratch Org... 
RequestId: 2SR3i0000008Z3QGAU (https://brave-bear-5fmf7j-dev-ed.my.salesforce.com/2SR3i0000008Z3QGAU)
OrgId: 00DDC0000004Hup 
Username: [email protected] 
✓ Prepare Request
✓ Send Request
✓ Wait For Org
✓ Available
✓ Authenticate
✓ Deploy Settings
Done

Your scratch org is ready.
➜  TestApp  hub:(GLOBAL - DevHub) scratch:([email protected])
 ➜   sfdx force:lightning:component:create -n myTest --type lwc -d force-app/main/default/lwc 
Warning: The "force lightning component create" command has been deprecated. Use "lightning generate component" instead.
target dir = /Users/william.ruemmele/projects/scratches/lwc/TestApp/force-app/main/default/lwc
   create force-app/main/default/lwc/myTest/myTest.js
   create force-app/main/default/lwc/myTest/myTest.html
   create force-app/main/default/lwc/myTest/__tests__/myTest.test.js
   create force-app/main/default/lwc/myTest/myTest.js-meta.xml

➜  TestApp  hub:(GLOBAL - DevHub) scratch:([email protected])
 ➜  sfdx force:source:deploy -p force-app/main/default/lwc/myTest
Warning: We plan to deprecate this command in the future. Try using the "project deploy start" command instead.
Deploying v58.0 metadata to [email protected] using the v58.0 SOAP API.
Deploy ID: 0AfDC00000iheGJ0AY
DEPLOY PROGRESS | ████████████████████████████████████████ | 1/1 Components

=== Deployed Source

 FULL NAME TYPE                     PROJECT PATH                                         
 ───────── ──────────────────────── ──────────────────────────────────────────────────── 
 myTest    LightningComponentBundle force-app/main/default/lwc/myTest/myTest.html        
 myTest    LightningComponentBundle force-app/main/default/lwc/myTest/myTest.js          
 myTest    LightningComponentBundle force-app/main/default/lwc/myTest/myTest.js-meta.xml 
Deploy Succeeded.
➜  TestApp  hub:(GLOBAL - DevHub) scratch:([email protected])
 ➜  pwd 
/Users/william.ruemmele/projects/scratches/lwc/TestApp