fix(cli): honour the non-interactive contract in stash init (#600)

packages/cli/src/commands/init/steps/__tests__/build-schema.test.ts

@@ -0,0 +1,81 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import type { InitProvider, InitState } from '../../types.js'
+
+const existsSyncMock = vi.hoisted(() => vi.fn(() => false))
+const writeFileSyncMock = vi.hoisted(() => vi.fn())
+vi.mock('node:fs', () => ({
+  existsSync: existsSyncMock,
+  mkdirSync: vi.fn(),
+  writeFileSync: writeFileSyncMock,
+}))
+vi.mock('../../../../config/index.js', () => ({
+  DEFAULT_CLIENT_PATH: 'src/encryption/index.ts',
+}))
+vi.mock('../../../../config/tty.js', () => ({
+  isInteractive: vi.fn(() => true),
+}))
+// Raw-postgres integration: all detectors return false.
+vi.mock('../../../db/detect.js', () => ({
+  detectDrizzle: vi.fn(() => false),
+  detectPrismaNext: vi.fn(() => false),
+  detectSupabase: vi.fn(() => false),
+}))
+vi.mock('../../lib/env-keys.js', () => ({ readEnvKeyNames: vi.fn(() => []) }))
+vi.mock('../../lib/write-context.js', () => ({
+  writeBaselineContextFile: vi.fn(),
+}))
+vi.mock('../../utils.js', () => ({
+  generatePlaceholderClient: vi.fn(() => '// placeholder'),
+}))
+vi.mock('@clack/prompts', () => ({
+  select: vi.fn(async () => 'overwrite'),
+  isCancel: vi.fn(() => false),
+  log: { info: vi.fn(), success: vi.fn() },
+}))
+
+import * as p from '@clack/prompts'
+import { isInteractive } from '../../../../config/tty.js'
+import { buildSchemaStep } from '../build-schema.js'
+
+const baseState = {
+  databaseUrl: 'postgresql://localhost:5432/app',
+} as unknown as InitState
+const provider = { name: 'postgresql' } as unknown as InitProvider
+
+describe('buildSchemaStep', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    vi.mocked(isInteractive).mockReturnValue(true)
+    existsSyncMock.mockReturnValue(false)
+  })
+
+  it('writes the placeholder client when none exists (no prompt)', async () => {
+    existsSyncMock.mockReturnValue(false)
+
+    const result = await buildSchemaStep.run(baseState, provider)
+
+    expect(p.select).not.toHaveBeenCalled()
+    expect(writeFileSyncMock).toHaveBeenCalledTimes(1)
+    expect(result.schemaGenerated).toBe(true)
+  })
+
+  it('prompts on an existing file when interactive', async () => {
+    existsSyncMock.mockReturnValue(true)
+
+    await buildSchemaStep.run(baseState, provider)
+
+    expect(p.select).toHaveBeenCalledTimes(1)
+  })
+
+  it('keeps an existing file without prompting when non-interactive (#600)', async () => {
+    existsSyncMock.mockReturnValue(true)
+    vi.mocked(isInteractive).mockReturnValue(false)
+
+    const result = await buildSchemaStep.run(baseState, provider)
+
+    // No TTY to answer; keep the user's file rather than prompt or clobber.
+    expect(p.select).not.toHaveBeenCalled()
+    expect(writeFileSyncMock).not.toHaveBeenCalled()
+    expect(result.schemaGenerated).toBe(false)
+  })
+})

packages/cli/src/commands/init/steps/__tests__/install-deps.test.ts

@@ -0,0 +1,80 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import type { InitProvider, InitState } from '../../types.js'
+
+const execSyncMock = vi.hoisted(() => vi.fn())
+vi.mock('node:child_process', () => ({ execSync: execSyncMock }))
+// Collaborators from utils — control install state + commands without a real PM.
+vi.mock('../../utils.js', () => ({
+  isPackageInstalled: vi.fn(() => false),
+  combinedInstallCommands: vi.fn(() => [
+    'npm install @cipherstash/stack',
+    'npm install --save-dev stash',
+  ]),
+  detectPackageManager: vi.fn(() => 'npm'),
+}))
+// Toggle interactivity per test (defaults to interactive in beforeEach).
+vi.mock('../../../../config/tty.js', () => ({
+  isInteractive: vi.fn(() => true),
+}))
+vi.mock('@clack/prompts', () => ({
+  confirm: vi.fn(async () => true),
+  isCancel: vi.fn(() => false),
+  log: {
+    info: vi.fn(),
+    success: vi.fn(),
+    warn: vi.fn(),
+    error: vi.fn(),
+    step: vi.fn(),
+  },
+  note: vi.fn(),
+}))
+
+import * as p from '@clack/prompts'
+import { isInteractive } from '../../../../config/tty.js'
+import { isPackageInstalled } from '../../utils.js'
+import { installDepsStep } from '../install-deps.js'
+
+const baseState = {} as unknown as InitState
+const provider = { name: 'postgresql' } as unknown as InitProvider
+
+describe('installDepsStep', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    vi.mocked(isInteractive).mockReturnValue(true)
+    vi.mocked(isPackageInstalled).mockReturnValue(false)
+  })
+
+  it('prompts before installing when interactive', async () => {
+    // Missing at the gate, present on the post-install recheck.
+    let n = 0
+    vi.mocked(isPackageInstalled).mockImplementation(() => ++n > 2)
+
+    await installDepsStep.run(baseState, provider)
+
+    expect(p.confirm).toHaveBeenCalledTimes(1)
+    expect(execSyncMock).toHaveBeenCalled()
+  })
+
+  it('installs without prompting when non-interactive (#600)', async () => {
+    vi.mocked(isInteractive).mockReturnValue(false)
+    let n = 0
+    vi.mocked(isPackageInstalled).mockImplementation(() => ++n > 2)
+
+    await installDepsStep.run(baseState, provider)
+
+    // No TTY to answer the prompt; init installs by default instead of aborting.
+    expect(p.confirm).not.toHaveBeenCalled()
+    expect(execSyncMock).toHaveBeenCalled()
+  })
+
+  it('skips silently when everything is already installed (no prompt)', async () => {
+    vi.mocked(isPackageInstalled).mockReturnValue(true)
+
+    const result = await installDepsStep.run(baseState, provider)
+
+    expect(p.confirm).not.toHaveBeenCalled()
+    expect(execSyncMock).not.toHaveBeenCalled()
+    expect(result.stackInstalled).toBe(true)
+    expect(result.cliInstalled).toBe(true)
+  })
+})

packages/cli/src/commands/init/steps/__tests__/install-eql.test.ts

@@ -6,6 +6,10 @@ import type { InitProvider, InitState } from '../../types.js'
 vi.mock('../../../db/install.js', () => ({ installCommand: vi.fn() }))
 // `stash` must appear installed so the precondition guard doesn't short-circuit.
 vi.mock('../../utils.js', () => ({ isPackageInstalled: vi.fn(() => true) }))
+// Toggle interactivity per test (defaults to interactive in beforeEach).
+vi.mock('../../../../config/tty.js', () => ({
+  isInteractive: vi.fn(() => true),
+}))
 // Auto-approve the "install EQL now?" prompt; no-op the rest of clack.
 vi.mock('@clack/prompts', () => ({
   confirm: vi.fn(async () => true),
@@ -14,6 +18,8 @@ vi.mock('@clack/prompts', () => ({
   note: vi.fn(),
 }))
 
+import * as p from '@clack/prompts'
+import { isInteractive } from '../../../../config/tty.js'
 import { installCommand } from '../../../db/install.js'
 import { installEqlStep } from '../install-eql.js'
 
@@ -26,6 +32,7 @@ const provider = { name: 'postgresql' } as unknown as InitProvider
 describe('installEqlStep', () => {
   beforeEach(() => {
     vi.clearAllMocks()
+    vi.mocked(isInteractive).mockReturnValue(true)
   })
 
   it("requests scaffoldConfig: 'ensure' so init still creates a stash.config.ts (#581 regression)", async () => {
@@ -40,4 +47,27 @@ describe('installEqlStep', () => {
     expect(opts.scaffoldConfig).toBe('ensure')
     expect(opts.databaseUrl).toBe('postgresql://localhost:5432/app')
   })
+
+  it('prompts before installing when interactive', async () => {
+    await installEqlStep.run(baseState, provider)
+
+    expect(p.confirm).toHaveBeenCalledTimes(1)
+    expect(installCommand).toHaveBeenCalledTimes(1)
+  })
+
+  it('installs without prompting when non-interactive, and still scaffolds config (#600)', async () => {
+    // In a non-TTY context (CI, agents, pipes) there is no way to answer the
+    // prompt. init must proceed with the default (install) rather than abort,
+    // and still scaffold stash.config.ts via the EQL install.
+    vi.mocked(isInteractive).mockReturnValue(false)
+
+    const result = await installEqlStep.run(baseState, provider)
+
+    expect(p.confirm).not.toHaveBeenCalled()
+    expect(installCommand).toHaveBeenCalledTimes(1)
+    expect(vi.mocked(installCommand).mock.calls[0][0].scaffoldConfig).toBe(
+      'ensure',
+    )
+    expect(result.eqlInstalled).toBe(true)
+  })
 })

packages/cli/src/commands/init/steps/build-schema.ts

@@ -2,6 +2,7 @@ import { existsSync, mkdirSync, writeFileSync } from 'node:fs'
 import { dirname, resolve } from 'node:path'
 import * as p from '@clack/prompts'
 import { DEFAULT_CLIENT_PATH } from '../../../config/index.js'
+import { isInteractive } from '../../../config/tty.js'
 import {
   detectDrizzle,
   detectPrismaNext,
@@ -92,22 +93,32 @@ export const buildSchemaStep: InitStep = {
     // Existing-file branch: silent overwrite is bad. Ask once.
     let keepExisting = false
     if (existsSync(resolvedPath)) {
-      const action = await p.select({
-        message: `${clientFilePath} already exists. What would you like to do?`,
-        options: [
-          {
-            value: 'keep',
-            label: 'Keep existing file',
-            hint: 'skip code generation',
-          },
-          { value: 'overwrite', label: 'Overwrite with placeholder' },
-        ],
-      })
+      // Non-interactive (CI, agents, pipes): keep the existing file rather than
+      // prompt. Keeping is the safe default — never clobber the user's client
+      // without an explicit answer.
+      if (!isInteractive()) {
+        keepExisting = true
+        p.log.info(
+          `${clientFilePath} already exists; keeping it (non-interactive).`,
+        )
+      } else {
+        const action = await p.select({
+          message: `${clientFilePath} already exists. What would you like to do?`,
+          options: [
+            {
+              value: 'keep',
+              label: 'Keep existing file',
+              hint: 'skip code generation',
+            },
+            { value: 'overwrite', label: 'Overwrite with placeholder' },
+          ],
+        })
 
-      if (p.isCancel(action)) throw new CancelledError()
+        if (p.isCancel(action)) throw new CancelledError()
 
-      keepExisting = action === 'keep'
-      if (keepExisting) p.log.info('Keeping existing encryption client file.')
+        keepExisting = action === 'keep'
+        if (keepExisting) p.log.info('Keeping existing encryption client file.')
+      }
     }
 
     if (!keepExisting) {

packages/cli/src/commands/init/steps/install-deps.ts

@@ -1,5 +1,6 @@
 import { execSync } from 'node:child_process'
 import * as p from '@clack/prompts'
+import { isInteractive } from '../../../config/tty.js'
 import type { InitProvider, InitState, InitStep } from '../types.js'
 import { CancelledError } from '../types.js'
 import {
@@ -58,9 +59,18 @@ export const installDepsStep: InitStep = {
       ...devPackages.map((pkg) => `${pkg} (dev)`),
     ].join(', ')
 
-    const install = await p.confirm({
-      message: `Install ${missingList}? (${commands.join(' && ')})`,
-    })
+    // Non-interactive (CI, agents, pipes): no TTY to answer, so install by
+    // default and continue rather than abort. `stash init` is a setup command;
+    // installing its own dependencies is the expected non-interactive default.
+    if (!isInteractive()) {
+      p.log.info(`Installing ${missingList} (non-interactive).`)
+    }
+    const install = isInteractive()
+      ? await p.confirm({
+          message: `Install ${missingList}? (${commands.join(' && ')})`,
+          initialValue: true,
+        })
+      : true
 
     if (p.isCancel(install)) throw new CancelledError()
 

packages/cli/src/commands/init/steps/install-eql.ts

@@ -1,4 +1,5 @@
 import * as p from '@clack/prompts'
+import { isInteractive } from '../../../config/tty.js'
 import { installCommand } from '../../db/install.js'
 import type { InitProvider, InitState, InitStep } from '../types.js'
 import { CancelledError } from '../types.js'
@@ -44,11 +45,19 @@ export const installEqlStep: InitStep = {
     const supabase = integration === 'supabase' || provider.name === 'supabase'
     const drizzle = integration === 'drizzle' || provider.name === 'drizzle'
 
-    const proceed = await p.confirm({
-      message:
-        'Install the EQL extension into your database now? (required for encryption)',
-      initialValue: true,
-    })
+    // Non-interactive (CI, agents, pipes): there's no TTY to answer the prompt,
+    // so take the default (install) and continue rather than hang or abort. This
+    // is what makes `stash init` honour its documented non-interactive contract.
+    if (!isInteractive()) {
+      p.log.info('Installing the EQL extension (non-interactive).')
+    }
+    const proceed = isInteractive()
+      ? await p.confirm({
+          message:
+            'Install the EQL extension into your database now? (required for encryption)',
+          initialValue: true,
+        })
+      : true
 
     if (p.isCancel(proceed)) throw new CancelledError()