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feat: improve Sentry logging with xcodebuild exit code classification
Implements intelligent Sentry error classification to reduce noise by distinguishing between MCP server bugs and user domain errors based on xcodebuild exit codes. ## Changes Made ### Core Implementation - **CommandResponse Interface**: Added `exitCode` field to capture process exit codes for error classification - **Command Executor**: Enhanced to capture and return exit codes from child processes - **Logger Enhancement**: Added `LogContext` interface to allow selective Sentry capture control - **Build Utils Classification**: Implemented exit code-based Sentry routing logic ### Classification Logic - **Exit Code 64**: Invalid command-line arguments (MCP server error) → Logs to Sentry as ERROR level - **All Other Exit Codes**: User domain errors (missing files, compilation failures, etc.) → Logs as WARNING level, no Sentry - **Spawn Errors**: Environment issues (ENOENT, EACCES, EPERM) → No Sentry logging ### Testing - **Enhanced Mock Executor**: Added support for `exitCode` and `shouldThrow` parameters for comprehensive testing - **Complete Test Coverage**: 11 new test cases covering all classification scenarios and edge cases - **Manual Validation**: Verified real-world behavior using Reloaderoo CLI testing tool ## Benefits - **Reduced Noise**: Eliminates user compilation errors from Sentry monitoring - **Focused Alerts**: Only genuine MCP server bugs trigger Sentry notifications - **Empirical Approach**: Based on actual xcodebuild exit code testing rather than heuristics - **Backward Compatible**: No breaking changes to existing functionality ## Validation - All 1057 existing tests pass - TypeScript compilation clean - ESLint validation clean - Manual testing confirms correct classification behavior
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6 files changed

+309
-7
lines changed

6 files changed

+309
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lines changed

‎src/test-utils/mock-executors.ts‎

Lines changed: 14 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -31,6 +31,8 @@ export function createMockExecutor(
3131
output?: string;
3232
error?: string;
3333
process?: unknown;
34+
exitCode?: number;
35+
shouldThrow?: Error;
3436
}
3537
| Error
3638
| string,
@@ -42,6 +44,13 @@ export function createMockExecutor(
4244
};
4345
}
4446

47+
// If shouldThrow is specified, return executor that rejects with that error
48+
if (result.shouldThrow) {
49+
return async () => {
50+
throw result.shouldThrow;
51+
};
52+
}
53+
4554
const mockProcess = {
4655
pid: 12345,
4756
stdout: null,
@@ -50,7 +59,7 @@ export function createMockExecutor(
5059
stdio: [null, null, null],
5160
killed: false,
5261
connected: false,
53-
exitCode: result.success === false ? 1 : 0,
62+
exitCode: result.exitCode ?? (result.success === false ? 1 : 0),
5463
signalCode: null,
5564
spawnargs: [],
5665
spawnfile: 'sh',
@@ -61,6 +70,7 @@ export function createMockExecutor(
6170
output: result.output ?? '',
6271
error: result.error,
6372
process: (result.process ?? mockProcess) as ChildProcess,
73+
exitCode: result.exitCode ?? (result.success === false ? 1 : 0),
6474
});
6575
}
6676

@@ -104,6 +114,7 @@ export function createCommandMatchingMockExecutor(
104114
output?: string;
105115
error?: string;
106116
process?: unknown;
117+
exitCode?: number;
107118
}
108119
>,
109120
): CommandExecutor {
@@ -132,7 +143,7 @@ export function createCommandMatchingMockExecutor(
132143
stdio: [null, null, null],
133144
killed: false,
134145
connected: false,
135-
exitCode: result.success === false ? 1 : 0,
146+
exitCode: result.exitCode ?? (result.success === false ? 1 : 0),
136147
signalCode: null,
137148
spawnargs: [],
138149
spawnfile: 'sh',
@@ -143,6 +154,7 @@ export function createCommandMatchingMockExecutor(
143154
output: result.output ?? '',
144155
error: result.error,
145156
process: (result.process ?? mockProcess) as ChildProcess,
157+
exitCode: result.exitCode ?? (result.success === false ? 1 : 0),
146158
};
147159
};
148160
}

‎src/utils/CommandExecutor.ts‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -19,4 +19,5 @@ export interface CommandResponse {
1919
output: string;
2020
error?: string;
2121
process: ChildProcess;
22+
exitCode?: number;
2223
}

‎src/utils/__tests__/build-utils.test.ts‎

Lines changed: 263 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,263 @@
1+
/**
2+
* Tests for build-utils Sentry classification logic
3+
*/
4+
5+
import { describe, it, expect } from 'vitest';
6+
import { createMockExecutor } from '../../test-utils/mock-executors.ts';
7+
import { executeXcodeBuildCommand } from '../build-utils.ts';
8+
import { XcodePlatform } from '../xcode.ts';
9+
10+
describe('build-utils Sentry Classification', () => {
11+
const mockPlatformOptions = {
12+
platform: XcodePlatform.macOS,
13+
logPrefix: 'Test Build',
14+
};
15+
16+
const mockParams = {
17+
scheme: 'TestScheme',
18+
configuration: 'Debug',
19+
projectPath: '/path/to/project.xcodeproj',
20+
};
21+
22+
describe('Exit Code 64 Classification (MCP Error)', () => {
23+
it('should trigger Sentry logging for exit code 64 (invalid arguments)', async () => {
24+
const mockExecutor = createMockExecutor({
25+
success: false,
26+
error: 'xcodebuild: error: invalid option',
27+
exitCode: 64,
28+
});
29+
30+
const result = await executeXcodeBuildCommand(
31+
mockParams,
32+
mockPlatformOptions,
33+
false,
34+
'build',
35+
mockExecutor,
36+
);
37+
38+
expect(result.isError).toBe(true);
39+
expect(result.content[0].text).toContain('❌ [stderr] xcodebuild: error: invalid option');
40+
expect(result.content[1].text).toContain('❌ Test Build build failed for scheme TestScheme');
41+
});
42+
});
43+
44+
describe('Other Exit Codes Classification (User Error)', () => {
45+
it('should not trigger Sentry logging for exit code 65 (user error)', async () => {
46+
const mockExecutor = createMockExecutor({
47+
success: false,
48+
error: 'Scheme TestScheme was not found',
49+
exitCode: 65,
50+
});
51+
52+
const result = await executeXcodeBuildCommand(
53+
mockParams,
54+
mockPlatformOptions,
55+
false,
56+
'build',
57+
mockExecutor,
58+
);
59+
60+
expect(result.isError).toBe(true);
61+
expect(result.content[0].text).toContain('❌ [stderr] Scheme TestScheme was not found');
62+
expect(result.content[1].text).toContain('❌ Test Build build failed for scheme TestScheme');
63+
});
64+
65+
it('should not trigger Sentry logging for exit code 66 (file not found)', async () => {
66+
const mockExecutor = createMockExecutor({
67+
success: false,
68+
error: 'project.xcodeproj cannot be opened',
69+
exitCode: 66,
70+
});
71+
72+
const result = await executeXcodeBuildCommand(
73+
mockParams,
74+
mockPlatformOptions,
75+
false,
76+
'build',
77+
mockExecutor,
78+
);
79+
80+
expect(result.isError).toBe(true);
81+
expect(result.content[0].text).toContain('❌ [stderr] project.xcodeproj cannot be opened');
82+
});
83+
84+
it('should not trigger Sentry logging for exit code 70 (destination error)', async () => {
85+
const mockExecutor = createMockExecutor({
86+
success: false,
87+
error: 'Unable to find a destination matching the provided destination specifier',
88+
exitCode: 70,
89+
});
90+
91+
const result = await executeXcodeBuildCommand(
92+
mockParams,
93+
mockPlatformOptions,
94+
false,
95+
'build',
96+
mockExecutor,
97+
);
98+
99+
expect(result.isError).toBe(true);
100+
expect(result.content[0].text).toContain('❌ [stderr] Unable to find a destination matching');
101+
});
102+
103+
it('should not trigger Sentry logging for exit code 1 (general build failure)', async () => {
104+
const mockExecutor = createMockExecutor({
105+
success: false,
106+
error: 'Build failed with errors',
107+
exitCode: 1,
108+
});
109+
110+
const result = await executeXcodeBuildCommand(
111+
mockParams,
112+
mockPlatformOptions,
113+
false,
114+
'build',
115+
mockExecutor,
116+
);
117+
118+
expect(result.isError).toBe(true);
119+
expect(result.content[0].text).toContain('❌ [stderr] Build failed with errors');
120+
});
121+
});
122+
123+
describe('Spawn Error Classification (Environment Error)', () => {
124+
it('should not trigger Sentry logging for ENOENT spawn error', async () => {
125+
const spawnError = new Error('spawn xcodebuild ENOENT') as NodeJS.ErrnoException;
126+
spawnError.code = 'ENOENT';
127+
128+
const mockExecutor = createMockExecutor({
129+
success: false,
130+
error: '',
131+
shouldThrow: spawnError,
132+
});
133+
134+
const result = await executeXcodeBuildCommand(
135+
mockParams,
136+
mockPlatformOptions,
137+
false,
138+
'build',
139+
mockExecutor,
140+
);
141+
142+
expect(result.isError).toBe(true);
143+
expect(result.content[0].text).toContain(
144+
'Error during Test Build build: spawn xcodebuild ENOENT',
145+
);
146+
});
147+
148+
it('should not trigger Sentry logging for EACCES spawn error', async () => {
149+
const spawnError = new Error('spawn xcodebuild EACCES') as NodeJS.ErrnoException;
150+
spawnError.code = 'EACCES';
151+
152+
const mockExecutor = createMockExecutor({
153+
success: false,
154+
error: '',
155+
shouldThrow: spawnError,
156+
});
157+
158+
const result = await executeXcodeBuildCommand(
159+
mockParams,
160+
mockPlatformOptions,
161+
false,
162+
'build',
163+
mockExecutor,
164+
);
165+
166+
expect(result.isError).toBe(true);
167+
expect(result.content[0].text).toContain(
168+
'Error during Test Build build: spawn xcodebuild EACCES',
169+
);
170+
});
171+
172+
it('should not trigger Sentry logging for EPERM spawn error', async () => {
173+
const spawnError = new Error('spawn xcodebuild EPERM') as NodeJS.ErrnoException;
174+
spawnError.code = 'EPERM';
175+
176+
const mockExecutor = createMockExecutor({
177+
success: false,
178+
error: '',
179+
shouldThrow: spawnError,
180+
});
181+
182+
const result = await executeXcodeBuildCommand(
183+
mockParams,
184+
mockPlatformOptions,
185+
false,
186+
'build',
187+
mockExecutor,
188+
);
189+
190+
expect(result.isError).toBe(true);
191+
expect(result.content[0].text).toContain(
192+
'Error during Test Build build: spawn xcodebuild EPERM',
193+
);
194+
});
195+
196+
it('should trigger Sentry logging for non-spawn exceptions', async () => {
197+
const otherError = new Error('Unexpected internal error');
198+
199+
const mockExecutor = createMockExecutor({
200+
success: false,
201+
error: '',
202+
shouldThrow: otherError,
203+
});
204+
205+
const result = await executeXcodeBuildCommand(
206+
mockParams,
207+
mockPlatformOptions,
208+
false,
209+
'build',
210+
mockExecutor,
211+
);
212+
213+
expect(result.isError).toBe(true);
214+
expect(result.content[0].text).toContain(
215+
'Error during Test Build build: Unexpected internal error',
216+
);
217+
});
218+
});
219+
220+
describe('Success Case (No Sentry Logging)', () => {
221+
it('should not trigger any error logging for successful builds', async () => {
222+
const mockExecutor = createMockExecutor({
223+
success: true,
224+
output: 'BUILD SUCCEEDED',
225+
exitCode: 0,
226+
});
227+
228+
const result = await executeXcodeBuildCommand(
229+
mockParams,
230+
mockPlatformOptions,
231+
false,
232+
'build',
233+
mockExecutor,
234+
);
235+
236+
expect(result.isError).toBeFalsy();
237+
expect(result.content[0].text).toContain(
238+
'✅ Test Build build succeeded for scheme TestScheme',
239+
);
240+
});
241+
});
242+
243+
describe('Exit Code Undefined Cases', () => {
244+
it('should not trigger Sentry logging when exitCode is undefined', async () => {
245+
const mockExecutor = createMockExecutor({
246+
success: false,
247+
error: 'Some error without exit code',
248+
exitCode: undefined,
249+
});
250+
251+
const result = await executeXcodeBuildCommand(
252+
mockParams,
253+
mockPlatformOptions,
254+
false,
255+
'build',
256+
mockExecutor,
257+
);
258+
259+
expect(result.isError).toBe(true);
260+
expect(result.content[0].text).toContain('❌ [stderr] Some error without exit code');
261+
});
262+
});
263+
});

‎src/utils/build-utils.ts‎

Lines changed: 16 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -247,9 +247,13 @@ export async function executeXcodeBuildCommand(
247247
}
248248

249249
if (!result.success) {
250-
log('error', `${platformOptions.logPrefix} ${buildAction} failed: ${result.error}`);
250+
const isMcpError = result.exitCode === 64;
251251

252-
// Create concise error response with warnings/errors included
252+
log(
253+
isMcpError ? 'error' : 'warning',
254+
`${platformOptions.logPrefix} ${buildAction} failed: ${result.error}`,
255+
{ sentry: isMcpError },
256+
);
253257
const errorResponse = createTextResponse(
254258
`❌ ${platformOptions.logPrefix} ${buildAction} failed for scheme ${params.scheme}.`,
255259
true,
@@ -339,7 +343,16 @@ Future builds will use the generated Makefile for improved performance.
339343
return consolidateContentForClaudeCode(successResponse);
340344
} catch (error) {
341345
const errorMessage = error instanceof Error ? error.message : String(error);
342-
log('error', `Error during ${platformOptions.logPrefix} ${buildAction}: ${errorMessage}`);
346+
347+
const isSpawnError =
348+
error instanceof Error &&
349+
'code' in error &&
350+
['ENOENT', 'EACCES', 'EPERM'].includes((error as NodeJS.ErrnoException).code ?? '');
351+
352+
log('error', `Error during ${platformOptions.logPrefix} ${buildAction}: ${errorMessage}`, {
353+
sentry: !isSpawnError,
354+
});
355+
343356
return consolidateContentForClaudeCode(
344357
createTextResponse(
345358
`Error during ${platformOptions.logPrefix} ${buildAction}: ${errorMessage}`,

‎src/utils/command.ts‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -126,6 +126,7 @@ async function defaultExecutor(
126126
output: stdout,
127127
error: success ? undefined : stderr,
128128
process: childProcess,
129+
exitCode: code ?? undefined,
129130
};
130131

131132
resolve(response);

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