Adds an empty state to the Commit Graph when no repository is open

[ianhattendorf]

Description

Adds an empty state to the Commit Graph shown when no repository is open, guiding users to get started. Closes #5408.

• Empty-state overlay with a primary Open a Folder action and secondary Clone a Repository / Start a New Project actions. In web/virtual workspaces (e.g. vscode.dev), clone and new-project are replaced by a single Open Remote Repository action (driven by an isWeb flag surfaced from the host).
• Reachability when no repo: GitLens marks itself gitlens:disabled when there are zero repositories, which previously hid the graph view and filtered the Show Commit Graph commands out of the Command Palette. The graph view now stays available with no repo, and the Show Commit Graph / …in Editor / …View commands are surfaced in the palette (matching Show Home View), so the empty state is reachable via both the editor page and the bottom panel.
• Removes the redundant "No repository detected" notification when opening the graph — the in-view empty state now provides the guidance.

Testing

Verified live in the Extension Development Host with no repository open:

• Empty state renders in both the editor page and the bottom-panel view; desktop shows the three actions, isWeb shows Open a Folder + Open Remote Repository.
• Buttons execute their commands end-to-end (e.g. Clone → git.clone quick input); reactive transition works (opening a repo hides the overlay and renders the graph, closing it restores the empty state).
• All Show Commit Graph commands appear in the Command Palette with no repo, and no "No repository detected" toast is shown.

[augmentcode]

🤖 Augment PR Summary

Summary: Makes the Commit Graph reachable and useful when no Git repository is available by showing an in-view empty state instead of hiding the view/commands.

Changes:

• Adds a <gl-graph-empty-state> overlay with “Open a Folder” plus secondary actions (Clone / Init on desktop; Open Remote Repository on web).
• Keeps the Graph view contributed/visible even when GitLens marks itself gitlens:disabled due to zero repositories.
• Surfaces “Show Commit Graph” commands in the Command Palette regardless of repository presence.
• Removes the redundant “No repository detected” notification when opening the Graph view and instead waits for repo discovery to complete.
• Plumbs an isWeb flag from the host into the graph webview state and protocol for environment-specific empty-state actions.
• Updates generated contributions/package metadata and the changelog accordingly.

Technical Notes: The empty state is rendered in the Graph app when repositories.length === 0 and uses command URIs for the actions.

_{🤖 Was this summary useful? React with 👍 or 👎}

[augmentcode]

Review completed. No suggestions at this time.

Comment augment review to trigger a new review at any time.

[Copilot]

Pull request overview

Adds a “no repository open” empty-state experience for the Commit Graph and ensures the Graph view/commands remain reachable even when GitLens is in its gitlens:disabled (no repos) context.

Changes:

• Adds a Graph empty-state overlay with appropriate actions (desktop: Open Folder / Clone / Init; web: Open Folder / Open Remote Repository).
• Surfaces Graph commands in the Command Palette even when no repository is open, and keeps the Graph view available in that state.
• Removes the redundant “No repository detected” notification when opening the Graph, relying on the in-view empty state instead.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/webviews/plus/graph/protocol.ts	Extends the Graph webview state to include an isWeb flag for environment-specific empty-state actions.
src/webviews/plus/graph/graphWebview.ts	Sends empty-state Graph state when no repositories exist; now includes isWeb.
src/webviews/apps/plus/graph/stateProvider.ts	Plumbs isWeb into the reactive webview state.
src/webviews/apps/plus/graph/graph-app.ts	Renders the new empty-state overlay when repositories is empty.
src/webviews/apps/plus/graph/empty-state.ts	New Lit component implementing the empty-state UI and command actions.
src/commands/showView.ts	Avoids the “No repository detected” toast for the Graph and waits only for discovery.
package.json	Updates generated contributions so the Graph view is not hidden by gitlens:disabled.
contributions.json	Ensures Graph commands appear in Command Palette even with no repo; updates Graph view when clause.
CHANGELOG.md	Documents the new Commit Graph empty state.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.