feat(tools): add global learnings store with CRUD library and CLI support (#1831)

* feat(tools): add global learnings store with CRUD library and CLI support

* fix(tools): address review feedback for global learnings store

- Validate learning IDs against path traversal in learningsRead, learningsDelete, and cmdLearningsDelete
- Fix total invariant in learningsCopyFromProject (total = created + skipped)
- Wrap cmdLearningsPrune in try/catch to handle invalid duration format
- Rename raw -> content in readLearningFile to avoid variable shadowing
- Add CLI integration tests for list, query, prune error, and unknown subcommand
This commit is contained in:
Rezolv
2026-04-05 19:09:14 -04:00
committed by GitHub
parent 790cbbd0d6
commit f25ae33dff
3 changed files with 940 additions and 0 deletions

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@@ -147,6 +147,13 @@
*
* Documentation:
* docs-init Project context for docs-update workflow
*
* Learnings:
* learnings list List all global learnings (JSON)
* learnings query --tag <tag> Query learnings by tag
* learnings copy Copy from current project's LEARNINGS.md
* learnings prune --older-than <dur> Remove entries older than duration (e.g. 90d)
* learnings delete <id> Delete a learning by ID
*/
const fs = require('fs');
@@ -167,6 +174,7 @@ const profilePipeline = require('./lib/profile-pipeline.cjs');
const profileOutput = require('./lib/profile-output.cjs');
const workstream = require('./lib/workstream.cjs');
const docs = require('./lib/docs.cjs');
const learnings = require('./lib/learnings.cjs');
// ─── Arg parsing helpers ──────────────────────────────────────────────────────
@@ -1003,6 +1011,34 @@ async function runCommand(command, args, cwd, raw) {
break;
}
// ─── Learnings ─────────────────────────────────────────────────────────
case 'learnings': {
const subcommand = args[1];
if (subcommand === 'list') {
learnings.cmdLearningsList(raw);
} else if (subcommand === 'query') {
const tagIdx = args.indexOf('--tag');
const tag = tagIdx !== -1 ? args[tagIdx + 1] : null;
if (!tag) error('Usage: gsd-tools learnings query --tag <tag>');
learnings.cmdLearningsQuery(tag, raw);
} else if (subcommand === 'copy') {
learnings.cmdLearningsCopy(cwd, raw);
} else if (subcommand === 'prune') {
const olderIdx = args.indexOf('--older-than');
const olderThan = olderIdx !== -1 ? args[olderIdx + 1] : null;
if (!olderThan) error('Usage: gsd-tools learnings prune --older-than <duration>');
learnings.cmdLearningsPrune(olderThan, raw);
} else if (subcommand === 'delete') {
const id = args[2];
if (!id) error('Usage: gsd-tools learnings delete <id>');
learnings.cmdLearningsDelete(id, raw);
} else {
error('Unknown learnings subcommand. Available: list, query, copy, prune, delete');
}
break;
}
default:
error(`Unknown command: ${command}`);
}

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@@ -0,0 +1,378 @@
/**
* Learnings — Global knowledge store with CRUD operations
*
* Provides a cross-project learnings store at ~/.gsd/knowledge/.
* Each learning is stored as an individual JSON file with content-hash
* deduplication. Supports write, read, list, query, delete, copy-from-project,
* and prune operations.
*
* Storage format: { id, source_project, date, context, learning, tags, content_hash }
* File naming: {id}.json
* Deduplication: SHA-256 of learning text + source_project
*/
'use strict';
const fs = require('fs');
const path = require('path');
const crypto = require('crypto');
const os = require('os');
const { output, error: coreError } = require('./core.cjs');
// ─── Constants ───────────────────────────────────────────────────────────────
const DEFAULT_STORE_DIR = path.join(os.homedir(), '.gsd', 'knowledge');
// ─── Helpers ─────────────────────────────────────────────────────────────────
/**
* Get the store directory, allowing override for testing.
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @returns {string}
*/
function getStoreDir(opts) {
return (opts && opts.storeDir) || DEFAULT_STORE_DIR;
}
/**
* Ensure the store directory exists. Created on first write, not on install.
* @param {string} dir
*/
function ensureStoreDir(dir) {
if (!fs.existsSync(dir)) {
fs.mkdirSync(dir, { recursive: true });
}
}
/**
* Generate a content hash for deduplication.
* Uses SHA-256 of learning text combined with source_project.
* @param {string} learning
* @param {string} sourceProject
* @returns {string}
*/
function contentHash(learning, sourceProject) {
return crypto.createHash('sha256')
.update(learning + '\n' + sourceProject)
.digest('hex');
}
/**
* Generate a unique ID based on timestamp + random suffix.
* @returns {string}
*/
function generateId() {
const ts = Date.now().toString(36);
const rand = crypto.randomBytes(4).toString('hex');
return `${ts}-${rand}`;
}
/**
* Read and parse a single learning JSON file.
* Returns null (with stderr warning) for malformed files.
* @param {string} filePath
* @returns {object|null}
*/
function readLearningFile(filePath) {
try {
const content = fs.readFileSync(filePath, 'utf-8');
return JSON.parse(content);
} catch (err) {
process.stderr.write(`Warning: skipping malformed file ${filePath}: ${err.message}\n`);
return null;
}
}
// ─── CRUD Operations ─────────────────────────────────────────────────────────
/**
* Write a learning to the global store.
* Deduplicates by content hash — same content from same project is not stored twice.
*
* @param {object} entry
* @param {string} entry.source_project - Project name or path
* @param {string} entry.learning - The learning text
* @param {string} [entry.context] - Additional context
* @param {string[]} [entry.tags] - Tags for querying
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @returns {{ id: string, created: boolean, content_hash: string }}
*/
function learningsWrite(entry, opts) {
const dir = getStoreDir(opts);
ensureStoreDir(dir);
const hash = contentHash(entry.learning, entry.source_project);
// Check for duplicate by scanning existing files
const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));
for (const file of files) {
const existing = readLearningFile(path.join(dir, file));
if (existing && existing.content_hash === hash) {
return { id: existing.id, created: false, content_hash: hash };
}
}
const id = generateId();
const record = {
id,
source_project: entry.source_project,
date: new Date().toISOString(),
context: entry.context || '',
learning: entry.learning,
tags: entry.tags || [],
content_hash: hash,
};
fs.writeFileSync(path.join(dir, `${id}.json`), JSON.stringify(record, null, 2), 'utf-8');
return { id, created: true, content_hash: hash };
}
/**
* Read a single learning by ID.
*
* @param {string} id
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @returns {object|null}
*/
function learningsRead(id, opts) {
if (!/^[a-z0-9]+-[a-f0-9]+$/.test(id)) return null;
const dir = getStoreDir(opts);
const filePath = path.join(dir, `${id}.json`);
if (!fs.existsSync(filePath)) return null;
return readLearningFile(filePath);
}
/**
* List all learnings, sorted by date (newest first).
*
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @returns {object[]}
*/
function learningsList(opts) {
const dir = getStoreDir(opts);
if (!fs.existsSync(dir)) return [];
const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));
const results = [];
for (const file of files) {
const record = readLearningFile(path.join(dir, file));
if (record) results.push(record);
}
// Sort by date descending (newest first)
results.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
return results;
}
/**
* Query learnings by tag.
*
* @param {object} query
* @param {string} [query.tag] - Tag to filter by
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @returns {object[]}
*/
function learningsQuery(query, opts) {
const all = learningsList(opts);
if (query && query.tag) {
return all.filter(r => r.tags && r.tags.includes(query.tag));
}
return all;
}
/**
* Delete a learning by ID.
*
* @param {string} id
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @returns {boolean} true if deleted, false if not found
*/
function learningsDelete(id, opts) {
if (!/^[a-z0-9]+-[a-f0-9]+$/.test(id)) return false;
const dir = getStoreDir(opts);
const filePath = path.join(dir, `${id}.json`);
if (!fs.existsSync(filePath)) return false;
fs.unlinkSync(filePath);
return true;
}
/**
* Copy learnings from a project's LEARNINGS.md into the global store.
* Parses markdown sections as individual learnings. Deduplicates by content hash.
*
* Expected LEARNINGS.md format:
* ## Section Title
* Learning content paragraph(s)...
*
* ## Another Section
* More content...
*
* @param {string} planningDir - Path to .planning/ directory (or directory containing LEARNINGS.md)
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @param {string} [opts.sourceProject] - Project name (defaults to directory basename)
* @returns {{ total: number, created: number, skipped: number }}
*/
function learningsCopyFromProject(planningDir, opts) {
const learningsPath = path.join(planningDir, 'LEARNINGS.md');
if (!fs.existsSync(learningsPath)) {
return { total: 0, created: 0, skipped: 0 };
}
const content = fs.readFileSync(learningsPath, 'utf-8');
const sourceProject = (opts && opts.sourceProject) || path.basename(path.resolve(planningDir, '..'));
// Parse markdown: split on ## headings
const sections = content.split(/^## /m).slice(1); // skip preamble before first ##
let created = 0;
let skipped = 0;
for (const section of sections) {
const lines = section.trim().split('\n');
const title = lines[0].trim();
const body = lines.slice(1).join('\n').trim();
if (!body) continue;
// Extract tags from title (simple: use words as tags)
const tags = title.toLowerCase().split(/\s+/).filter(w => w.length > 2);
const result = learningsWrite({
source_project: sourceProject,
learning: body,
context: title,
tags,
}, opts);
if (result.created) {
created++;
} else {
skipped++;
}
}
return { total: created + skipped, created, skipped };
}
/**
* Prune learnings older than a given threshold.
*
* @param {string} olderThan - Duration string like "90d", "30d", "7d"
* @param {object} [opts]
* @param {string} [opts.storeDir] - Override store directory
* @returns {{ removed: number, kept: number }}
*/
function learningsPrune(olderThan, opts) {
const match = /^(\d+)d$/.exec(olderThan);
if (!match) {
throw new Error(`Invalid duration format: "${olderThan}" — expected format like "90d"`);
}
const days = parseInt(match[1], 10);
const cutoff = new Date(Date.now() - days * 24 * 60 * 60 * 1000);
const dir = getStoreDir(opts);
if (!fs.existsSync(dir)) return { removed: 0, kept: 0 };
const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));
let removed = 0;
let kept = 0;
for (const file of files) {
const filePath = path.join(dir, file);
const record = readLearningFile(filePath);
if (!record) continue;
const recordDate = new Date(record.date);
if (recordDate < cutoff) {
fs.unlinkSync(filePath);
removed++;
} else {
kept++;
}
}
return { removed, kept };
}
// ─── CLI Command Handlers ────────────────────────────────────────────────────
/**
* Handle `gsd-tools learnings list`
* @param {boolean} raw - Raw output flag
*/
function cmdLearningsList(raw) {
const results = learningsList();
output({ learnings: results, count: results.length }, raw);
}
/**
* Handle `gsd-tools learnings query --tag <tag>`
* @param {string} tag
* @param {boolean} raw - Raw output flag
*/
function cmdLearningsQuery(tag, raw) {
const results = learningsQuery({ tag });
output({ learnings: results, count: results.length, tag }, raw);
}
/**
* Handle `gsd-tools learnings copy`
* @param {string} cwd - Current working directory
* @param {boolean} raw - Raw output flag
*/
function cmdLearningsCopy(cwd, raw) {
const planningDir = path.join(cwd, '.planning');
const result = learningsCopyFromProject(planningDir);
output(result, raw);
}
/**
* Handle `gsd-tools learnings prune --older-than <duration>`
* @param {string} olderThan - Duration string like "90d"
* @param {boolean} raw - Raw output flag
*/
function cmdLearningsPrune(olderThan, raw) {
try {
const result = learningsPrune(olderThan);
output(result, raw);
} catch (err) {
coreError(err.message);
}
}
/**
* Handle `gsd-tools learnings delete <id>`
* @param {string} id
* @param {boolean} raw - Raw output flag
*/
function cmdLearningsDelete(id, raw) {
if (!/^[a-z0-9]+-[a-f0-9]+$/.test(id)) {
coreError(`Invalid learning ID: "${id}"`);
}
const deleted = learningsDelete(id);
output({ id, deleted }, raw);
}
// ─── Exports ─────────────────────────────────────────────────────────────────
module.exports = {
learningsWrite,
learningsRead,
learningsList,
learningsQuery,
learningsDelete,
learningsCopyFromProject,
learningsPrune,
cmdLearningsList,
cmdLearningsQuery,
cmdLearningsCopy,
cmdLearningsPrune,
cmdLearningsDelete,
DEFAULT_STORE_DIR,
};

526
tests/learnings.test.cjs Normal file
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@@ -0,0 +1,526 @@
/**
* Learnings Store Tests
*
* Tests for the global learnings CRUD library: write, read, list, query,
* delete, dedup, empty store, malformed file handling, copyFromProject, prune.
*/
const { test, describe, beforeEach, afterEach } = require('node:test');
const assert = require('node:assert/strict');
const fs = require('fs');
const path = require('path');
const os = require('os');
const {
learningsWrite,
learningsRead,
learningsList,
learningsQuery,
learningsDelete,
learningsCopyFromProject,
learningsPrune,
} = require('../get-shit-done/bin/lib/learnings.cjs');
const { runGsdTools, createTempProject, cleanup } = require('./helpers.cjs');
// ─── Test Helpers ────────────────────────────────────────────────────────────
/**
* Create a unique temp directory for each test.
* @returns {string}
*/
function makeTempDir() {
return fs.mkdtempSync(path.join(os.tmpdir(), 'gsd-learnings-test-'));
}
/**
* Remove a directory recursively.
* @param {string} dir
*/
function cleanupDir(dir) {
if (fs.existsSync(dir)) {
fs.rmSync(dir, { recursive: true, force: true });
}
}
// ─── Write ───────────────────────────────────────────────────────────────────
describe('learningsWrite', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('creates a learning file with all required fields', () => {
const result = learningsWrite({
source_project: 'test-project',
learning: 'Always validate inputs before processing',
context: 'security review',
tags: ['security', 'validation'],
}, { storeDir });
assert.ok(result.id, 'should return an id');
assert.strictEqual(result.created, true);
assert.ok(result.content_hash, 'should return a content_hash');
// Verify file exists and has correct structure
const filePath = path.join(storeDir, `${result.id}.json`);
assert.ok(fs.existsSync(filePath), 'file should exist on disk');
const record = JSON.parse(fs.readFileSync(filePath, 'utf-8'));
assert.strictEqual(record.id, result.id);
assert.strictEqual(record.source_project, 'test-project');
assert.strictEqual(record.learning, 'Always validate inputs before processing');
assert.strictEqual(record.context, 'security review');
assert.deepStrictEqual(record.tags, ['security', 'validation']);
assert.strictEqual(record.content_hash, result.content_hash);
assert.ok(record.date, 'should have a date');
});
test('creates store directory on first write', () => {
const nestedDir = path.join(storeDir, 'nested', 'store');
assert.ok(!fs.existsSync(nestedDir), 'dir should not exist yet');
learningsWrite({
source_project: 'test',
learning: 'test learning',
}, { storeDir: nestedDir });
assert.ok(fs.existsSync(nestedDir), 'dir should be created on write');
});
test('defaults context to empty string and tags to empty array', () => {
const result = learningsWrite({
source_project: 'test',
learning: 'minimal entry',
}, { storeDir });
const record = learningsRead(result.id, { storeDir });
assert.strictEqual(record.context, '');
assert.deepStrictEqual(record.tags, []);
});
});
// ─── Deduplication ───────────────────────────────────────────────────────────
describe('deduplication', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('same content from same project is not stored twice', () => {
const entry = {
source_project: 'my-project',
learning: 'Use content hashing for dedup',
tags: ['dedup'],
};
const first = learningsWrite(entry, { storeDir });
const second = learningsWrite(entry, { storeDir });
assert.strictEqual(first.created, true);
assert.strictEqual(second.created, false);
assert.strictEqual(first.content_hash, second.content_hash);
assert.strictEqual(first.id, second.id);
// Only one file on disk
const files = fs.readdirSync(storeDir).filter(f => f.endsWith('.json'));
assert.strictEqual(files.length, 1);
});
test('same learning from different projects creates separate entries', () => {
const learning = 'Same learning text';
const first = learningsWrite({
source_project: 'project-a',
learning,
}, { storeDir });
const second = learningsWrite({
source_project: 'project-b',
learning,
}, { storeDir });
assert.strictEqual(first.created, true);
assert.strictEqual(second.created, true);
assert.notStrictEqual(first.content_hash, second.content_hash);
const files = fs.readdirSync(storeDir).filter(f => f.endsWith('.json'));
assert.strictEqual(files.length, 2);
});
});
// ─── Read ────────────────────────────────────────────────────────────────────
describe('learningsRead', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('returns a learning by ID', () => {
const { id } = learningsWrite({
source_project: 'test',
learning: 'readable entry',
tags: ['read'],
}, { storeDir });
const record = learningsRead(id, { storeDir });
assert.ok(record);
assert.strictEqual(record.id, id);
assert.strictEqual(record.learning, 'readable entry');
});
test('returns null for non-existent ID', () => {
const record = learningsRead('does-not-exist', { storeDir });
assert.strictEqual(record, null);
});
});
// ─── List ────────────────────────────────────────────────────────────────────
describe('learningsList', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('returns empty array for empty store', () => {
const results = learningsList({ storeDir });
assert.deepStrictEqual(results, []);
});
test('returns empty array when store dir does not exist', () => {
const results = learningsList({ storeDir: path.join(storeDir, 'nonexistent') });
assert.deepStrictEqual(results, []);
});
test('returns all learnings sorted by date (newest first)', () => {
// Write three entries with controlled dates
const id1 = learningsWrite({
source_project: 'p1',
learning: 'first',
}, { storeDir }).id;
// Manually adjust dates to control sort order
const file1 = path.join(storeDir, `${id1}.json`);
const rec1 = JSON.parse(fs.readFileSync(file1, 'utf-8'));
rec1.date = '2025-01-01T00:00:00.000Z';
fs.writeFileSync(file1, JSON.stringify(rec1));
const id2 = learningsWrite({
source_project: 'p2',
learning: 'second',
}, { storeDir }).id;
const file2 = path.join(storeDir, `${id2}.json`);
const rec2 = JSON.parse(fs.readFileSync(file2, 'utf-8'));
rec2.date = '2025-06-15T00:00:00.000Z';
fs.writeFileSync(file2, JSON.stringify(rec2));
const id3 = learningsWrite({
source_project: 'p3',
learning: 'third',
}, { storeDir }).id;
const file3 = path.join(storeDir, `${id3}.json`);
const rec3 = JSON.parse(fs.readFileSync(file3, 'utf-8'));
rec3.date = '2025-03-10T00:00:00.000Z';
fs.writeFileSync(file3, JSON.stringify(rec3));
const results = learningsList({ storeDir });
assert.strictEqual(results.length, 3);
assert.strictEqual(results[0].learning, 'second'); // newest
assert.strictEqual(results[1].learning, 'third'); // middle
assert.strictEqual(results[2].learning, 'first'); // oldest
});
});
// ─── Query ───────────────────────────────────────────────────────────────────
describe('learningsQuery', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('filters by tag', () => {
learningsWrite({
source_project: 'p1',
learning: 'auth lesson',
tags: ['auth', 'security'],
}, { storeDir });
learningsWrite({
source_project: 'p2',
learning: 'ui lesson',
tags: ['ui', 'css'],
}, { storeDir });
learningsWrite({
source_project: 'p3',
learning: 'auth pattern',
tags: ['auth', 'patterns'],
}, { storeDir });
const results = learningsQuery({ tag: 'auth' }, { storeDir });
assert.strictEqual(results.length, 2);
assert.ok(results.every(r => r.tags.includes('auth')));
});
test('returns all when no tag filter', () => {
learningsWrite({ source_project: 'p1', learning: 'a' }, { storeDir });
learningsWrite({ source_project: 'p2', learning: 'b' }, { storeDir });
const results = learningsQuery({}, { storeDir });
assert.strictEqual(results.length, 2);
});
test('returns empty array when tag not found', () => {
learningsWrite({
source_project: 'p1',
learning: 'something',
tags: ['other'],
}, { storeDir });
const results = learningsQuery({ tag: 'nonexistent' }, { storeDir });
assert.strictEqual(results.length, 0);
});
});
// ─── Delete ──────────────────────────────────────────────────────────────────
describe('learningsDelete', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('removes a learning by ID', () => {
const { id } = learningsWrite({
source_project: 'test',
learning: 'to be deleted',
}, { storeDir });
assert.strictEqual(learningsDelete(id, { storeDir }), true);
assert.strictEqual(learningsRead(id, { storeDir }), null);
const files = fs.readdirSync(storeDir).filter(f => f.endsWith('.json'));
assert.strictEqual(files.length, 0);
});
test('returns false for non-existent ID', () => {
assert.strictEqual(learningsDelete('nonexistent', { storeDir }), false);
});
});
// ─── Malformed File Handling ─────────────────────────────────────────────────
describe('malformed file handling', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('list skips malformed JSON files with warning', () => {
// Write a valid entry
learningsWrite({
source_project: 'test',
learning: 'valid entry',
}, { storeDir });
// Write a malformed JSON file
fs.writeFileSync(path.join(storeDir, 'bad-entry.json'), '{not valid json!!!', 'utf-8');
const results = learningsList({ storeDir });
assert.strictEqual(results.length, 1);
assert.strictEqual(results[0].learning, 'valid entry');
});
test('write dedup check skips malformed files without crashing', () => {
// Write a malformed JSON file first
fs.writeFileSync(path.join(storeDir, 'corrupt.json'), 'corrupted!', 'utf-8');
// Writing should still succeed
const result = learningsWrite({
source_project: 'test',
learning: 'new entry after corrupt',
}, { storeDir });
assert.strictEqual(result.created, true);
});
});
// ─── Copy From Project ───────────────────────────────────────────────────────
describe('learningsCopyFromProject', () => {
let storeDir;
let projectDir;
beforeEach(() => {
storeDir = makeTempDir();
projectDir = makeTempDir();
});
afterEach(() => {
cleanupDir(storeDir);
cleanupDir(projectDir);
});
test('copies learnings from LEARNINGS.md into global store', () => {
const learningsMd = `# Project Learnings
## Authentication Patterns
Always use OAuth2 for third-party auth.
Never store tokens in localStorage.
## Database Design
Normalize to 3NF unless read performance demands denormalization.
## Error Handling
Use custom error classes that extend Error.
`;
fs.writeFileSync(path.join(projectDir, 'LEARNINGS.md'), learningsMd, 'utf-8');
const result = learningsCopyFromProject(projectDir, {
storeDir,
sourceProject: 'my-app',
});
assert.strictEqual(result.created, 3);
assert.strictEqual(result.skipped, 0);
const all = learningsList({ storeDir });
assert.strictEqual(all.length, 3);
// Verify content was captured
const learningTexts = all.map(r => r.learning);
assert.ok(learningTexts.some(t => t.includes('OAuth2')));
assert.ok(learningTexts.some(t => t.includes('Normalize to 3NF')));
assert.ok(learningTexts.some(t => t.includes('custom error classes')));
});
test('deduplicates on second copy', () => {
const learningsMd = `# Learnings
## Testing
Always write tests first.
`;
fs.writeFileSync(path.join(projectDir, 'LEARNINGS.md'), learningsMd, 'utf-8');
learningsCopyFromProject(projectDir, { storeDir, sourceProject: 'app' });
const second = learningsCopyFromProject(projectDir, { storeDir, sourceProject: 'app' });
assert.strictEqual(second.created, 0);
assert.strictEqual(second.skipped, 1);
const all = learningsList({ storeDir });
assert.strictEqual(all.length, 1);
});
test('returns zero counts when LEARNINGS.md does not exist', () => {
const result = learningsCopyFromProject(projectDir, { storeDir });
assert.deepStrictEqual(result, { total: 0, created: 0, skipped: 0 });
});
test('skips sections with empty body', () => {
const learningsMd = `# Learnings
## Empty Section
## Has Content
Real content here.
`;
fs.writeFileSync(path.join(projectDir, 'LEARNINGS.md'), learningsMd, 'utf-8');
const result = learningsCopyFromProject(projectDir, { storeDir, sourceProject: 'app' });
assert.strictEqual(result.created, 1);
const all = learningsList({ storeDir });
assert.strictEqual(all.length, 1);
assert.ok(all[0].learning.includes('Real content'));
});
});
// ─── Prune ───────────────────────────────────────────────────────────────────
describe('learningsPrune', () => {
let storeDir;
beforeEach(() => { storeDir = makeTempDir(); });
afterEach(() => { cleanupDir(storeDir); });
test('removes entries older than threshold', () => {
// Create an old entry
const oldId = learningsWrite({
source_project: 'old-project',
learning: 'ancient wisdom',
}, { storeDir }).id;
// Backdate it to 100 days ago
const oldFile = path.join(storeDir, `${oldId}.json`);
const oldRec = JSON.parse(fs.readFileSync(oldFile, 'utf-8'));
oldRec.date = new Date(Date.now() - 100 * 24 * 60 * 60 * 1000).toISOString();
fs.writeFileSync(oldFile, JSON.stringify(oldRec));
// Create a recent entry
learningsWrite({
source_project: 'new-project',
learning: 'fresh knowledge',
}, { storeDir });
const result = learningsPrune('90d', { storeDir });
assert.strictEqual(result.removed, 1);
assert.strictEqual(result.kept, 1);
const remaining = learningsList({ storeDir });
assert.strictEqual(remaining.length, 1);
assert.strictEqual(remaining[0].learning, 'fresh knowledge');
});
test('keeps all entries when none are old enough', () => {
learningsWrite({ source_project: 'p', learning: 'recent' }, { storeDir });
const result = learningsPrune('30d', { storeDir });
assert.strictEqual(result.removed, 0);
assert.strictEqual(result.kept, 1);
});
test('returns zeros when store does not exist', () => {
const result = learningsPrune('90d', { storeDir: path.join(storeDir, 'nope') });
assert.deepStrictEqual(result, { removed: 0, kept: 0 });
});
test('throws on invalid duration format', () => {
assert.throws(
() => learningsPrune('invalid', { storeDir }),
/Invalid duration format/
);
});
});
// ─── CLI Integration ────────────────────────────────────────────────────────
describe('CLI integration', () => {
let tmpDir;
beforeEach(() => { tmpDir = createTempProject(); });
afterEach(() => { cleanup(tmpDir); });
test('learnings list returns valid JSON', () => {
const res = runGsdTools(['learnings', 'list'], tmpDir, { HOME: tmpDir });
assert.strictEqual(res.success, true);
const parsed = JSON.parse(res.output);
assert.ok(Array.isArray(parsed.learnings));
assert.strictEqual(typeof parsed.count, 'number');
});
test('learnings query --tag succeeds', () => {
const res = runGsdTools(['learnings', 'query', '--tag', 'auth'], tmpDir, { HOME: tmpDir });
assert.strictEqual(res.success, true);
const parsed = JSON.parse(res.output);
assert.ok(Array.isArray(parsed.learnings));
});
test('learnings prune with bad format exits non-zero', () => {
const res = runGsdTools(['learnings', 'prune', '--older-than', 'badformat'], tmpDir, { HOME: tmpDir });
assert.strictEqual(res.success, false);
assert.ok(res.error.includes('Invalid duration format'));
});
test('learnings unknown subcommand exits non-zero', () => {
const res = runGsdTools(['learnings', 'unknown'], tmpDir, { HOME: tmpDir });
assert.strictEqual(res.success, false);
assert.ok(res.error.includes('Unknown learnings subcommand'));
});
});