Add database tools: snapshots and import/export (step 4)

Snapshot create/list/restore/delete and DB import/export via native
file dialogs, all routed through the streaming commandRunner from
step 3. `ddev snapshot restore` has no project-name flag (unlike every
other ddev command used so far) — it resolves the project from cwd,
so commandRunner/execDdev now accept an optional cwd and every
database command runs with cwd = project approot instead of passing
the name positionally.

Fixed a real bug found via live testing: the snapshot-naming UI used
window.prompt(), which Electron's renderer does not support (it
returns null with no dialog, silently). window.confirm() does work
(verified: real native dialog, respects accept/dismiss) so the delete
confirmation was left as-is. Snapshot naming now uses an inline text
input instead.

Verified end-to-end against the real scratch DDEV project via CDP-
driven clicks: named snapshot creation, deletion, and restore
(streamed output ending in "Database snapshot restoretest was
restored in 7s") all confirmed working through the actual UI.
import-db/export-db verified via direct CLI round-trip using the
exact --file= flag syntax the app invokes (skipped UI-driving these
since they open native OS file dialogs that CDP cannot dismiss).

src/main/commandRunner.ts

@@ -33,10 +33,11 @@ export class CommandCancelledError extends Error {
 export function runStreamed(
   operationId: string,
   args: string[],
-  sender: WebContents
+  sender: WebContents,
+  options: { cwd?: string } = {}
 ): Promise<void> {
   return new Promise((resolve, reject) => {
-    const child = spawn('ddev', args, { env: ENV_WITH_DDEV_PATH })
+    const child = spawn('ddev', args, { env: ENV_WITH_DDEV_PATH, cwd: options.cwd })
     running.set(operationId, child)
 
     const tail: string[] = []

src/main/ddev.ts

@@ -1,6 +1,6 @@
 import { execFile } from 'child_process'
 import { promisify } from 'util'
-import type { DdevProjectDetail, DdevProjectSummary } from '../shared/types'
+import type { DdevProjectDetail, DdevProjectSummary, DdevSnapshot } from '../shared/types'
 
 const execFileAsync = promisify(execFile)
 
@@ -27,12 +27,13 @@ interface DdevJsonEnvelope<T> {
   time: string
 }
 
-async function execDdev<T>(args: string[]): Promise<DdevJsonEnvelope<T>> {
+async function execDdev<T>(args: string[], cwd?: string): Promise<DdevJsonEnvelope<T>> {
   let stdout: string
   try {
     ;({ stdout } = await execFileAsync('ddev', [...args, '--json-output'], {
       maxBuffer: 32 * 1024 * 1024,
-      env: ENV_WITH_DDEV_PATH
+      env: ENV_WITH_DDEV_PATH,
+      cwd
     }))
   } catch (error) {
     const execError = error as { stdout?: string; stderr?: string; message: string }
@@ -57,8 +58,8 @@ async function execDdev<T>(args: string[]): Promise<DdevJsonEnvelope<T>> {
 }
 
 // Read commands (list/describe): the payload lives under `raw`.
-async function runDdevRead<T>(args: string[]): Promise<T> {
-  const envelope = await execDdev<T>(args)
+async function runDdevRead<T>(args: string[], cwd?: string): Promise<T> {
+  const envelope = await execDdev<T>(args, cwd)
   if (envelope.raw === undefined) {
     throw new DdevCliError(
       typeof envelope.msg === 'string' ? envelope.msg : 'ddev returned no data'
@@ -91,3 +92,14 @@ export async function listProjects(): Promise<DdevProjectSummary[]> {
 export async function describeProject(name: string): Promise<DdevProjectDetail> {
   return runDdevRead<DdevProjectDetail>(['describe', name])
 }
+
+// `ddev snapshot restore` has no project-name flag — it relies on cwd to
+// resolve the project, so every snapshot command runs with cwd = approot
+// rather than passing the project name positionally like other commands.
+export async function listSnapshots(name: string, approot: string): Promise<DdevSnapshot[]> {
+  const raw = await runDdevRead<Record<string, DdevSnapshot[] | null>>(
+    ['snapshot', '--list'],
+    approot
+  )
+  return raw[name] ?? []
+}

src/main/index.ts

@@ -4,6 +4,7 @@ import { electronApp, optimizer, is } from '@electron-toolkit/utils'
 import icon from '../../resources/icon.png?asset'
 import { registerProjectsIpc } from './ipc/projects'
 import { registerTerminalIpc } from './ipc/terminal'
+import { registerDatabaseIpc } from './ipc/database'
 
 function createWindow(): void {
   // Create the browser window.
@@ -54,6 +55,7 @@ app.whenReady().then(() => {
 
   registerProjectsIpc()
   registerTerminalIpc()
+  registerDatabaseIpc()
 
   createWindow()
 

src/main/ipc/database.ts

@@ -0,0 +1,73 @@
+import { dialog, ipcMain } from 'electron'
+import { listSnapshots } from '../ddev'
+import { runStreamed } from '../commandRunner'
+
+export function registerDatabaseIpc(): void {
+  ipcMain.handle('database:listSnapshots', (_event, name: string, approot: string) =>
+    listSnapshots(name, approot)
+  )
+
+  ipcMain.handle(
+    'database:createSnapshot',
+    (event, operationId: string, approot: string, snapshotName?: string) =>
+      runStreamed(
+        operationId,
+        ['snapshot', ...(snapshotName ? ['--name', snapshotName] : [])],
+        event.sender,
+        { cwd: approot }
+      )
+  )
+
+  ipcMain.handle(
+    'database:restoreSnapshot',
+    (event, operationId: string, approot: string, snapshotName: string) =>
+      runStreamed(operationId, ['snapshot', 'restore', snapshotName], event.sender, {
+        cwd: approot
+      })
+  )
+
+  ipcMain.handle(
+    'database:deleteSnapshot',
+    (event, operationId: string, approot: string, snapshotName: string) =>
+      runStreamed(
+        operationId,
+        ['snapshot', '--cleanup', '--name', snapshotName, '-y'],
+        event.sender,
+        { cwd: approot }
+      )
+  )
+
+  ipcMain.handle(
+    'database:importFile',
+    (event, operationId: string, approot: string, filePath: string) =>
+      runStreamed(operationId, ['import-db', `--file=${filePath}`], event.sender, { cwd: approot })
+  )
+
+  ipcMain.handle(
+    'database:exportFile',
+    (event, operationId: string, approot: string, filePath: string) =>
+      runStreamed(operationId, ['export-db', `--file=${filePath}`], event.sender, { cwd: approot })
+  )
+
+  ipcMain.handle('database:pickImportFile', async () => {
+    const result = await dialog.showOpenDialog({
+      properties: ['openFile'],
+      filters: [
+        { name: 'SQL dumps', extensions: ['sql', 'gz', 'zip', 'bz2', 'xz', 'tgz'] },
+        { name: 'All files', extensions: ['*'] }
+      ]
+    })
+    return result.canceled ? null : result.filePaths[0]
+  })
+
+  ipcMain.handle('database:pickExportPath', async (_event, defaultFileName: string) => {
+    const result = await dialog.showSaveDialog({
+      defaultPath: defaultFileName,
+      filters: [
+        { name: 'SQL dumps', extensions: ['sql', 'gz'] },
+        { name: 'All files', extensions: ['*'] }
+      ]
+    })
+    return result.canceled ? null : result.filePath
+  })
+}

src/preload/index.ts

@@ -3,6 +3,7 @@ import { electronAPI } from '@electron-toolkit/preload'
 import type {
   DdevProjectDetail,
   DdevProjectSummary,
+  DdevSnapshot,
   TerminalDataEvent,
   TerminalExitEvent
 } from '../shared/types'
@@ -33,6 +34,23 @@ const api = {
       ipcRenderer.on('terminal:exit', listener)
       return () => ipcRenderer.removeListener('terminal:exit', listener)
     }
+  },
+  database: {
+    listSnapshots: (name: string, approot: string): Promise<DdevSnapshot[]> =>
+      ipcRenderer.invoke('database:listSnapshots', name, approot),
+    createSnapshot: (operationId: string, approot: string, snapshotName?: string): Promise<void> =>
+      ipcRenderer.invoke('database:createSnapshot', operationId, approot, snapshotName),
+    restoreSnapshot: (operationId: string, approot: string, snapshotName: string): Promise<void> =>
+      ipcRenderer.invoke('database:restoreSnapshot', operationId, approot, snapshotName),
+    deleteSnapshot: (operationId: string, approot: string, snapshotName: string): Promise<void> =>
+      ipcRenderer.invoke('database:deleteSnapshot', operationId, approot, snapshotName),
+    importFile: (operationId: string, approot: string, filePath: string): Promise<void> =>
+      ipcRenderer.invoke('database:importFile', operationId, approot, filePath),
+    exportFile: (operationId: string, approot: string, filePath: string): Promise<void> =>
+      ipcRenderer.invoke('database:exportFile', operationId, approot, filePath),
+    pickImportFile: (): Promise<string | null> => ipcRenderer.invoke('database:pickImportFile'),
+    pickExportPath: (defaultFileName: string): Promise<string | null> =>
+      ipcRenderer.invoke('database:pickExportPath', defaultFileName)
   }
 }
 

src/renderer/src/components/projects/DatabaseSection.tsx

@@ -0,0 +1,172 @@
+import { useState } from 'react'
+import { Camera, Download, RotateCcw, Trash2, Upload } from 'lucide-react'
+import {
+  useCreateSnapshot,
+  useDeleteSnapshot,
+  useExportDatabase,
+  useImportDatabase,
+  useRestoreSnapshot,
+  useSnapshots
+} from '../../hooks/useDatabase'
+
+function formatDate(iso: string): string {
+  return new Date(iso).toLocaleString()
+}
+
+export function DatabaseSection({
+  name,
+  approot
+}: {
+  name: string
+  approot: string
+}): React.JSX.Element {
+  const { data: snapshots, isLoading } = useSnapshots(name, approot)
+  const createSnapshot = useCreateSnapshot(name, approot)
+  const restoreSnapshot = useRestoreSnapshot(name, approot)
+  const deleteSnapshot = useDeleteSnapshot(name, approot)
+  const importDatabase = useImportDatabase(name, approot)
+  const exportDatabase = useExportDatabase(name, approot)
+
+  // Electron doesn't support window.prompt() (it silently returns null with
+  // no dialog), so snapshot naming needs an inline input instead.
+  const [isNaming, setIsNaming] = useState(false)
+  const [snapshotNameDraft, setSnapshotNameDraft] = useState('')
+
+  const isBusy =
+    createSnapshot.isPending ||
+    restoreSnapshot.isPending ||
+    deleteSnapshot.isPending ||
+    importDatabase.isPending ||
+    exportDatabase.isPending
+
+  function submitSnapshotName(): void {
+    const trimmed = snapshotNameDraft.trim()
+    createSnapshot.mutate(trimmed || undefined)
+    setIsNaming(false)
+    setSnapshotNameDraft('')
+  }
+
+  return (
+    <section>
+      <div className="mb-2 flex items-center justify-between">
+        <h3 className="text-sm font-semibold text-neutral-500 dark:text-neutral-400">Database</h3>
+        <div className="flex items-center gap-2">
+          {isNaming ? (
+            <>
+              <input
+                autoFocus
+                type="text"
+                placeholder="Snapshot name (optional)"
+                value={snapshotNameDraft}
+                onChange={(e) => setSnapshotNameDraft(e.target.value)}
+                onKeyDown={(e) => {
+                  if (e.key === 'Enter') submitSnapshotName()
+                  if (e.key === 'Escape') setIsNaming(false)
+                }}
+                className="rounded-md border border-neutral-300 px-2 py-1 text-xs dark:border-neutral-700 dark:bg-neutral-900"
+              />
+              <button
+                type="button"
+                onClick={submitSnapshotName}
+                className="rounded-md bg-neutral-900 px-2.5 py-1 text-xs font-medium text-white hover:bg-neutral-700 dark:bg-neutral-100 dark:text-neutral-900 dark:hover:bg-neutral-300"
+              >
+                Create
+              </button>
+              <button
+                type="button"
+                onClick={() => setIsNaming(false)}
+                className="rounded-md px-2.5 py-1 text-xs font-medium text-neutral-500 hover:bg-neutral-100 dark:hover:bg-neutral-800"
+              >
+                Cancel
+              </button>
+            </>
+          ) : (
+            <>
+              <button
+                type="button"
+                disabled={isBusy}
+                onClick={() => importDatabase.mutate()}
+                className="inline-flex items-center gap-1.5 rounded-md border border-neutral-300 px-2.5 py-1 text-xs font-medium hover:bg-neutral-50 disabled:cursor-not-allowed disabled:opacity-40 dark:border-neutral-700 dark:hover:bg-neutral-900"
+              >
+                <Upload size={12} /> Import
+              </button>
+              <button
+                type="button"
+                disabled={isBusy}
+                onClick={() => exportDatabase.mutate()}
+                className="inline-flex items-center gap-1.5 rounded-md border border-neutral-300 px-2.5 py-1 text-xs font-medium hover:bg-neutral-50 disabled:cursor-not-allowed disabled:opacity-40 dark:border-neutral-700 dark:hover:bg-neutral-900"
+              >
+                <Download size={12} /> Export
+              </button>
+              <button
+                type="button"
+                disabled={isBusy}
+                onClick={() => setIsNaming(true)}
+                className="inline-flex items-center gap-1.5 rounded-md bg-neutral-900 px-2.5 py-1 text-xs font-medium text-white hover:bg-neutral-700 disabled:cursor-not-allowed disabled:opacity-40 dark:bg-neutral-100 dark:text-neutral-900 dark:hover:bg-neutral-300"
+              >
+                <Camera size={12} /> Snapshot
+              </button>
+            </>
+          )}
+        </div>
+      </div>
+
+      {isLoading ? (
+        <p className="text-sm text-neutral-500">Loading snapshots…</p>
+      ) : !snapshots || snapshots.length === 0 ? (
+        <p className="text-sm text-neutral-500">No snapshots yet.</p>
+      ) : (
+        <div className="overflow-hidden rounded-lg border border-neutral-200 dark:border-neutral-800">
+          <table className="w-full text-sm">
+            <thead className="bg-neutral-50 text-left text-xs uppercase text-neutral-500 dark:bg-neutral-900 dark:text-neutral-400">
+              <tr>
+                <th className="px-3 py-2 font-medium">Name</th>
+                <th className="px-3 py-2 font-medium">Created</th>
+                <th className="px-3 py-2 font-medium" />
+              </tr>
+            </thead>
+            <tbody>
+              {snapshots.map((snapshot) => (
+                <tr
+                  key={snapshot.Name}
+                  className="border-t border-neutral-200 dark:border-neutral-800"
+                >
+                  <td className="px-3 py-2 font-medium">{snapshot.Name}</td>
+                  <td className="px-3 py-2 text-neutral-500 dark:text-neutral-400">
+                    {formatDate(snapshot.Created)}
+                  </td>
+                  <td className="px-3 py-2">
+                    <div className="flex justify-end gap-2">
+                      <button
+                        type="button"
+                        disabled={isBusy}
+                        onClick={() => restoreSnapshot.mutate(snapshot.Name)}
+                        title="Restore"
+                        className="rounded p-1 text-neutral-500 hover:bg-neutral-100 disabled:cursor-not-allowed disabled:opacity-40 dark:hover:bg-neutral-800"
+                      >
+                        <RotateCcw size={14} />
+                      </button>
+                      <button
+                        type="button"
+                        disabled={isBusy}
+                        onClick={() => {
+                          if (window.confirm(`Delete snapshot "${snapshot.Name}"?`)) {
+                            deleteSnapshot.mutate(snapshot.Name)
+                          }
+                        }}
+                        title="Delete"
+                        className="rounded p-1 text-red-500 hover:bg-red-50 disabled:cursor-not-allowed disabled:opacity-40 dark:hover:bg-red-950"
+                      >
+                        <Trash2 size={14} />
+                      </button>
+                    </div>
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      )}
+    </section>
+  )
+}

src/renderer/src/components/projects/ProjectDetail.tsx

@@ -6,6 +6,7 @@ import {
   useStopProject
 } from '../../hooks/useDdev'
 import { StatusBadge } from './StatusBadge'
+import { DatabaseSection } from './DatabaseSection'
 
 export function ProjectDetail({ name }: { name: string }): React.JSX.Element {
   const { data: project, isLoading, isError, error } = useProjectDetail(name)
@@ -137,6 +138,8 @@ export function ProjectDetail({ name }: { name: string }): React.JSX.Element {
           <dd>{project.dbinfo.published_port}</dd>
         </dl>
       </section>
+
+      <DatabaseSection name={project.name} approot={project.approot} />
     </div>
   )
 }

src/renderer/src/hooks/useDatabase.ts

@@ -0,0 +1,103 @@
+import {
+  useMutation,
+  useQuery,
+  useQueryClient,
+  type UseMutationResult,
+  type UseQueryResult
+} from '@tanstack/react-query'
+import type { DdevSnapshot } from '@shared/types'
+import { useTerminalStore } from '../stores/terminalStore'
+import { useStatusStore } from '../stores/statusStore'
+
+const snapshotsKey = (name: string): readonly [string, string] => ['snapshots', name] as const
+
+export function useSnapshots(name: string, approot: string): UseQueryResult<DdevSnapshot[], Error> {
+  return useQuery({
+    queryKey: snapshotsKey(name),
+    queryFn: () => window.api.database.listSnapshots(name, approot)
+  })
+}
+
+// Same tracked-operation pattern as useProjectAction in useDdev.ts: generate
+// an operationId up front so the terminal panel/status bar pick it up before
+// the (potentially slow) ddev command resolves.
+function beginOperation(label: string): string {
+  const operationId = crypto.randomUUID()
+  useTerminalStore.getState().startOperation(operationId, label)
+  useStatusStore.getState().begin(operationId, label)
+  return operationId
+}
+
+export function useCreateSnapshot(
+  name: string,
+  approot: string
+): UseMutationResult<void, Error, string | undefined> {
+  const queryClient = useQueryClient()
+  return useMutation({
+    mutationFn: async (snapshotName?: string) => {
+      const operationId = beginOperation(`Create snapshot for ${name}`)
+      await window.api.database.createSnapshot(operationId, approot, snapshotName)
+    },
+    onSettled: () => queryClient.invalidateQueries({ queryKey: snapshotsKey(name) })
+  })
+}
+
+export function useRestoreSnapshot(
+  name: string,
+  approot: string
+): UseMutationResult<void, Error, string> {
+  const queryClient = useQueryClient()
+  return useMutation({
+    mutationFn: async (snapshotName: string) => {
+      const operationId = beginOperation(`Restore snapshot ${snapshotName}`)
+      await window.api.database.restoreSnapshot(operationId, approot, snapshotName)
+    },
+    onSettled: () => queryClient.invalidateQueries({ queryKey: snapshotsKey(name) })
+  })
+}
+
+export function useDeleteSnapshot(
+  name: string,
+  approot: string
+): UseMutationResult<void, Error, string> {
+  const queryClient = useQueryClient()
+  return useMutation({
+    mutationFn: async (snapshotName: string) => {
+      const operationId = beginOperation(`Delete snapshot ${snapshotName}`)
+      await window.api.database.deleteSnapshot(operationId, approot, snapshotName)
+    },
+    onSettled: () => queryClient.invalidateQueries({ queryKey: snapshotsKey(name) })
+  })
+}
+
+// Resolves to false if the user cancels the file picker, true if the import ran.
+export function useImportDatabase(
+  name: string,
+  approot: string
+): UseMutationResult<boolean, Error, void> {
+  return useMutation({
+    mutationFn: async () => {
+      const filePath = await window.api.database.pickImportFile()
+      if (!filePath) return false
+      const operationId = beginOperation(`Import database into ${name}`)
+      await window.api.database.importFile(operationId, approot, filePath)
+      return true
+    }
+  })
+}
+
+// Resolves to false if the user cancels the save dialog, true if the export ran.
+export function useExportDatabase(
+  name: string,
+  approot: string
+): UseMutationResult<boolean, Error, void> {
+  return useMutation({
+    mutationFn: async () => {
+      const filePath = await window.api.database.pickExportPath(`${name}.sql.gz`)
+      if (!filePath) return false
+      const operationId = beginOperation(`Export database from ${name}`)
+      await window.api.database.exportFile(operationId, approot, filePath)
+      return true
+    }
+  })
+}

src/shared/types.ts

@@ -67,6 +67,11 @@ export interface DdevProjectDetail extends DdevProjectSummary {
   xdebug_enabled: boolean
 }
 
+export interface DdevSnapshot {
+  Name: string
+  Created: string
+}
+
 export interface TerminalDataEvent {
   operationId: string
   stream: 'stdout' | 'stderr'