git: fix config value dropped when set to empty string

[xingsy97]

Problem

The config() method uses if (value) to decide whether to append the value argument to the git command. This drops valid falsy values like empty string, since if ('') is false.

Example

Setting a config key to empty string to clear it:

git config --local user.signingKey ""

With if (value), the empty string is dropped and the command becomes git config --local user.signingKey (no value argument), which reads the key instead of setting it.

Fix

Change to if (value !== undefined && value !== null) so that empty strings and other non-null values are passed through correctly.

[vs-code-engineering]

📬 CODENOTIFY

The following users are being notified based on files changed in this PR:

@lszomoru

Matched files:

• extensions/git/src/git.ts

[Copilot]

Pull request overview

Fixes the Git extension’s Repository.config() argument handling so that valid falsy config values (notably the empty string) are not dropped when invoking git config.

Changes:

• Update the value presence check in Repository.config() to allow passing empty strings through to the git CLI.