Option to disable parent ".gitignore" scan

[kaiguogit]

Feature Request: Config option to disable parent .gitignore scanning

Current Behavior

Since PR #31911, Nx now scans parent .gitignore files to determine which files to ignore. This breaks our workflow.

Our Use Case

We use Nx in a monorepo with 100+ developers, containing both C code (not managed by Nx) and TypeScript code (managed by Nx).

Repository structure:

gitroot
├── table1.c
├── table2.c
├── .gitignore          <-- ignores nx-root/c-schema/
└── nx-root/
    ├── c-schema/
    │   ├── table1.json
    │   └── table2.json
    ├── nx.json
    ├── lib1/
    │   ├── index.ts
    │   └── project.json
    └── lib2/
        ├── index.ts
        └── project.json

The Problem

We generate JSON schema files from C code and store them in c-schema/ (gitignored). We intentionally track these as Nx inputs via a custom plugin:

{
  "name": "c-schema:table1",
  "inputs": ["{projectRoot}/table1.json"]
}

Then our TS libraries depend on these:

{
  "name": "lib1",
  "dependsOn": [{"project": "c-schema:table1", "target": "build"}]
}

Since PR #31911, parent .gitignore entries are now respected, preventing us from using these generated files as Nx inputs.

Proposed Solution

Add a configuration option in nx.json to disable parent .gitignore scanning:

{
  "checkParentGitignore": false
}

Why We Can't Work Around This

• C code structure is too complex for Nx to analyze directly
• Moving schema generation inside Nx workspace would require duplicating significant tooling