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4 changes: 3 additions & 1 deletion bin/gstack-settings-hook
Original file line number Diff line number Diff line change
Expand Up @@ -171,8 +171,9 @@ case "$ACTION" in

const matchesEntry = (entry) => {
const sameMatcher = (entry.matcher || "") === matcher;
const sameCommand = entry.hooks && entry.hooks[0] && entry.hooks[0].command === cmd;
const sameSource = entry._gstack_source === source;
return sameMatcher && sameSource;
return sameMatcher && (sameSource || sameCommand);
};

let existing = settings.hooks[event].find(matchesEntry);
Expand All @@ -184,6 +185,7 @@ case "$ACTION" in

if (existing) {
existing.hooks = [hookEntry];
existing._gstack_source = source;
} else {
const newEntry = { _gstack_source: source, hooks: [hookEntry] };
if (matcher) newEntry.matcher = matcher;
Expand Down
49 changes: 49 additions & 0 deletions test/gstack-settings-hook-schema-aware.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,55 @@ describe('add-event', () => {
expect(s.hooks.PreToolUse[0].hooks[0].command).toBe('/v2');
});

test('dedup includes command: same (event, matcher, command) with different source updates in place', () => {
run([
'add-event',
'--event', 'PostToolUse',
'--matcher', '(AskUserQuestion|mcp__.*__AskUserQuestion)',
'--command', '/abs/path/to/question-log-hook',
'--source', 'source-A',
'--timeout', '5',
]);
run([
'add-event',
'--event', 'PostToolUse',
'--matcher', '(AskUserQuestion|mcp__.*__AskUserQuestion)',
'--command', '/abs/path/to/question-log-hook',
'--source', 'source-B',
'--timeout', '5',
]);
const s = settings();
expect(s.hooks.PostToolUse).toHaveLength(1);
expect(s.hooks.PostToolUse[0]._gstack_source).toBe('source-B');
});

test('dedup includes command: untagged entry with same command is updated not duplicated', () => {
fs.writeFileSync(
settingsFile,
JSON.stringify({
hooks: {
PostToolUse: [
{
matcher: '(AskUserQuestion|mcp__.*__AskUserQuestion)',
hooks: [{ type: 'command', command: '/abs/path/to/question-log-hook', timeout: 5 }],
},
],
},
}, null, 2),
);
run([
'add-event',
'--event', 'PostToolUse',
'--matcher', '(AskUserQuestion|mcp__.*__AskUserQuestion)',
'--command', '/abs/path/to/question-log-hook',
'--source', 'plan-tune-cathedral',
'--timeout', '5',
]);
const s = settings();
expect(s.hooks.PostToolUse).toHaveLength(1);
expect(s.hooks.PostToolUse[0]._gstack_source).toBe('plan-tune-cathedral');
});

test('preserves unrelated existing hooks', () => {
fs.writeFileSync(
settingsFile,
Expand Down
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