fix(vcs): show branch actions in the Git Log commit menu (#1852)

Right-clicking a commit with branch labels offered commit actions only. The menu now has a Branch 'name' submenu with the existing branch actions for each branch at that commit other than the current one, grouped under Branches when there are more than two, and keeps Rebase onto Selected Commit for commits without branches. The actions run against the commit's repository in a multi-repository project.

Co-authored-by: shohruh-genius <[email protected]>

e2e/gitLogBranchMenu.spec.ts

@@ -0,0 +1,90 @@
+import { expect, ipcCalls, stubDesktop, test } from "./fixtures";
+
+test("opens a commit's branch menu and acts in its linked repository", async ({ workbench: page }) => {
+  await stubDesktop(page);
+  await page.evaluate(async () => {
+    const primary = "/dev/acme-api";
+    const linked = "/dev/acme-web";
+    const tip = "1".repeat(40);
+    const h = window.__ipc.handlers;
+    h.vcs_roots = () =>
+      [
+        { root: primary, head: "main" },
+        { root: linked, head: "release" },
+      ].map((repo) => ({ ...repo, operation: null, headCommit: tip }));
+    h.vcs_branch_info = ({ repo }) => ({
+      head: repo === linked ? "release" : "main",
+      headCommit: tip,
+      upstream: null,
+      ahead: 0,
+      behind: 0,
+      operation: null,
+    });
+    h.vcs_branches = ({ repo }) =>
+      [repo === linked ? "origin/dev" : "origin/other"].map((name) => ({
+        name,
+        commit: tip,
+        remote: true,
+        current: false,
+        upstream: null,
+        ahead: 0,
+        behind: 0,
+        lastCommitMs: 0,
+      }));
+    h.vcs_log = ({ repo }) => {
+      const summary = repo === linked ? "Linked repository commit" : "Primary repository commit";
+      return [
+        {
+          id: tip,
+          shortId: tip.slice(0, 8),
+          parents: [],
+          refs: [repo === linked ? "origin/dev" : "origin/other"],
+          author: "A",
+          email: "[email protected]",
+          timeMs: 0,
+          summary,
+          message: summary,
+        },
+      ];
+    };
+    h.vcs_log_refs = () => ({});
+    h.vcs_log_details_batch = ({ revisions }) =>
+      (revisions as string[]).map(() => ({
+        message: "Linked repository commit",
+        containingBranches: [],
+        signature: "N",
+        signer: "",
+        key: "",
+        fingerprint: "",
+      }));
+    h.vcs_commit_files = () => [];
+    h.vcs_config_get = () => null;
+    h.vcs_tags = () => [];
+    h.vcs_status = () => [];
+    h.vcs_create_branch = () => null;
+    const vcsModule = "/src/features/vcs/store.ts";
+    const { useVcs, refreshNow } = await import(/* @vite-ignore */ vcsModule);
+    useVcs.setState({ available: true, root: primary, repo: primary });
+    await refreshNow();
+    const contextModule = "/src/platform/context.ts";
+    const { setContext } = await import(/* @vite-ignore */ contextModule);
+    setContext("vcsAvailable", true);
+    const actionsModule = "/src/platform/actions.ts";
+    const { executeAction } = await import(/* @vite-ignore */ actionsModule);
+    await executeAction("vcs.showLog");
+  });
+
+  await page.getByRole("option", { name: /Linked repository commit/ }).click({ button: "right" });
+  const menu = page.getByRole("menu", { name: "Context menu" });
+  await expect(menu.getByRole("menuitem", { name: "Branch 'origin/other'" })).toHaveCount(0);
+  await menu.getByRole("menuitem", { name: "Branch 'origin/dev'" }).hover();
+  await expect(page.getByRole("menuitem", { name: "Pull into 'release' Using Rebase" })).toBeVisible();
+  const newBranch = page.getByRole("menuitem", { name: "New Branch from 'origin/dev'…" });
+  await newBranch.click();
+  const dialog = page.getByRole("dialog", { name: "Create New Branch from origin/dev" });
+  await dialog.getByRole("textbox", { name: "New branch name:" }).fill("test-branch");
+  await dialog.getByRole("button", { name: "Create", exact: true }).click();
+  await expect
+    .poll(() => ipcCalls(page, "vcs_create_branch"))
+    .toMatchObject([{ repo: "/dev/acme-web", name: "test-branch", start: "origin/dev", checkout: true }]);
+});