This PR fixes an inconsistency in the `GrepTool` where the system grep strategy was case-sensitive, while the `git grep` and JavaScript fallback strategies were case-insensitive.
## Changes
- Added the `-i` flag to the `grepArgs` array in the system grep strategy within `packages/core/src/tools/grep.ts`.
- Added a unit test in `packages/core/src/tools/grep.test.ts` to verify that the `-i` flag is correctly passed to the system `grep` command.
## Impact
All search strategies in `GrepTool` now behave consistently with regard to case-sensitivity (defaulting to case-insensitive).
## Verification
- Ran `npm test -w @google/gemini-cli-core -- src/tools/grep.test.ts`.
- All 33 tests passed, including the new regression test.
Address multiple possible memory leaks found bystatic analysis of the codebase. The primary source of the leaks was event listeners on child processes and global objects that were not being properly removed, potentially causing their closures to be retained in memory indefinitely particularly for processes that did not exit.
There are two commits. A larger one made by gemini CLI and a smaller one by me to make sure we always disconnect child processes as part of the cleanup methods. These changes may not actually fix any leaks but do look like reasonable defensive coding to avoid leaking event listeners or child processes.
The following files were fixed:
This is Gemini's somewhat overconfident description of what it did.
packages/core/src/tools/shell.ts: Fixed a leak where an abortSignal listener was not being reliably removed.
packages/cli/src/utils/readStdin.ts: Fixed a significant leak where listeners on process.stdin were never removed.
packages/cli/src/utils/sandbox.ts: Fixed leaks in the imageExists and pullImage helper functions where listeners on spawned child processes were not being removed.
packages/core/src/tools/grep.ts: Fixed three separate leaks in the isCommandAvailable check and the git grep and system grep strategies due to un-removed listeners on child processes.
packages/core/src/tools/tool-registry.ts: Corrected a leak in the execute method of the DiscoveredTool class where listeners on the spawned tool process were not being removed.