Intellisense DB not updated after a git pull

[RichardFurness]

Type: LanguageService

Describe the bug

• OS and Version: Windows 10 remote SSH to Linux
• VS Code Version: latest insiders
• C/C++ Extension Version: 0.25.1
• Other extensions you installed (and if the issue persists after disabling them):
• A clear and concise description of what the bug is.

If I update the code on the remote server e.g. doing a git pull or checking out a new branch, the C intellisense DB isn't updated so e.g. find-all-references won't find new references due to the update.

To Reproduce

1. In VSCode, have open the file defining something (say, a function).
2. On the server, pull in changes that introduce a new referenc to the function in another file (not already open in VSCode), using e.g. git pull / checkout new branch.
3. In VSCode, perform find-all-references from the function definition.

Expected behavior
The new reference should be found. Instead, it will only be found after I either:

• Open the file with the new reference, OR
• Reset intellisense DB

Screenshots

Additional context

[sean-mcmanus]

Oh, we've had this root problem for a long time -- we ignore file watcher "changed" events.

Doing a Rescan Workspace command is the recommended workaround until we're able to fix this.

A related issue is #3802 (no file watchers at all outside of the workspace).

[sean-mcmanus]

The fix is available with https://github.com/microsoft/vscode-cpptools/releases/tag/0.26.0-insiders . Let us know if it's not working for you.