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:
@@ -147,6 +147,13 @@
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*
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* Documentation:
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* docs-init Project context for docs-update workflow
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*
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* Learnings:
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* learnings list List all global learnings (JSON)
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* learnings query --tag <tag> Query learnings by tag
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* learnings copy Copy from current project's LEARNINGS.md
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* learnings prune --older-than <dur> Remove entries older than duration (e.g. 90d)
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* learnings delete <id> Delete a learning by ID
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*/
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const fs = require('fs');
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@@ -167,6 +174,7 @@ const profilePipeline = require('./lib/profile-pipeline.cjs');
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const profileOutput = require('./lib/profile-output.cjs');
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const workstream = require('./lib/workstream.cjs');
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const docs = require('./lib/docs.cjs');
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const learnings = require('./lib/learnings.cjs');
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// ─── Arg parsing helpers ──────────────────────────────────────────────────────
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@@ -1003,6 +1011,34 @@ async function runCommand(command, args, cwd, raw) {
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break;
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}
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// ─── Learnings ─────────────────────────────────────────────────────────
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case 'learnings': {
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const subcommand = args[1];
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if (subcommand === 'list') {
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learnings.cmdLearningsList(raw);
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} else if (subcommand === 'query') {
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const tagIdx = args.indexOf('--tag');
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const tag = tagIdx !== -1 ? args[tagIdx + 1] : null;
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if (!tag) error('Usage: gsd-tools learnings query --tag <tag>');
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learnings.cmdLearningsQuery(tag, raw);
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} else if (subcommand === 'copy') {
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learnings.cmdLearningsCopy(cwd, raw);
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} else if (subcommand === 'prune') {
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const olderIdx = args.indexOf('--older-than');
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const olderThan = olderIdx !== -1 ? args[olderIdx + 1] : null;
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if (!olderThan) error('Usage: gsd-tools learnings prune --older-than <duration>');
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learnings.cmdLearningsPrune(olderThan, raw);
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} else if (subcommand === 'delete') {
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const id = args[2];
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if (!id) error('Usage: gsd-tools learnings delete <id>');
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learnings.cmdLearningsDelete(id, raw);
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} else {
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error('Unknown learnings subcommand. Available: list, query, copy, prune, delete');
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}
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break;
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}
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default:
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error(`Unknown command: ${command}`);
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}
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378
get-shit-done/bin/lib/learnings.cjs
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378
get-shit-done/bin/lib/learnings.cjs
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@@ -0,0 +1,378 @@
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/**
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* Learnings — Global knowledge store with CRUD operations
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*
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* Provides a cross-project learnings store at ~/.gsd/knowledge/.
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* Each learning is stored as an individual JSON file with content-hash
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* deduplication. Supports write, read, list, query, delete, copy-from-project,
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* and prune operations.
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*
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* Storage format: { id, source_project, date, context, learning, tags, content_hash }
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* File naming: {id}.json
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* Deduplication: SHA-256 of learning text + source_project
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*/
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'use strict';
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const fs = require('fs');
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const path = require('path');
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const crypto = require('crypto');
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const os = require('os');
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const { output, error: coreError } = require('./core.cjs');
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// ─── Constants ───────────────────────────────────────────────────────────────
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const DEFAULT_STORE_DIR = path.join(os.homedir(), '.gsd', 'knowledge');
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// ─── Helpers ─────────────────────────────────────────────────────────────────
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/**
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* Get the store directory, allowing override for testing.
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @returns {string}
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*/
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function getStoreDir(opts) {
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return (opts && opts.storeDir) || DEFAULT_STORE_DIR;
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}
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/**
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* Ensure the store directory exists. Created on first write, not on install.
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* @param {string} dir
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*/
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function ensureStoreDir(dir) {
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if (!fs.existsSync(dir)) {
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fs.mkdirSync(dir, { recursive: true });
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}
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}
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/**
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* Generate a content hash for deduplication.
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* Uses SHA-256 of learning text combined with source_project.
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* @param {string} learning
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* @param {string} sourceProject
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* @returns {string}
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*/
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function contentHash(learning, sourceProject) {
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return crypto.createHash('sha256')
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.update(learning + '\n' + sourceProject)
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.digest('hex');
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}
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/**
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* Generate a unique ID based on timestamp + random suffix.
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* @returns {string}
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*/
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function generateId() {
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const ts = Date.now().toString(36);
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const rand = crypto.randomBytes(4).toString('hex');
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return `${ts}-${rand}`;
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}
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/**
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* Read and parse a single learning JSON file.
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* Returns null (with stderr warning) for malformed files.
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* @param {string} filePath
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* @returns {object|null}
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*/
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function readLearningFile(filePath) {
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try {
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const content = fs.readFileSync(filePath, 'utf-8');
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return JSON.parse(content);
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} catch (err) {
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process.stderr.write(`Warning: skipping malformed file ${filePath}: ${err.message}\n`);
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return null;
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}
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}
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// ─── CRUD Operations ─────────────────────────────────────────────────────────
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/**
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* Write a learning to the global store.
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* Deduplicates by content hash — same content from same project is not stored twice.
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*
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* @param {object} entry
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* @param {string} entry.source_project - Project name or path
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* @param {string} entry.learning - The learning text
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* @param {string} [entry.context] - Additional context
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* @param {string[]} [entry.tags] - Tags for querying
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @returns {{ id: string, created: boolean, content_hash: string }}
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*/
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function learningsWrite(entry, opts) {
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const dir = getStoreDir(opts);
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ensureStoreDir(dir);
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const hash = contentHash(entry.learning, entry.source_project);
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// Check for duplicate by scanning existing files
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const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));
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for (const file of files) {
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const existing = readLearningFile(path.join(dir, file));
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if (existing && existing.content_hash === hash) {
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return { id: existing.id, created: false, content_hash: hash };
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}
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}
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const id = generateId();
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const record = {
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id,
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source_project: entry.source_project,
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date: new Date().toISOString(),
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context: entry.context || '',
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learning: entry.learning,
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tags: entry.tags || [],
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content_hash: hash,
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};
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fs.writeFileSync(path.join(dir, `${id}.json`), JSON.stringify(record, null, 2), 'utf-8');
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return { id, created: true, content_hash: hash };
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}
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/**
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* Read a single learning by ID.
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*
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* @param {string} id
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @returns {object|null}
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*/
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function learningsRead(id, opts) {
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if (!/^[a-z0-9]+-[a-f0-9]+$/.test(id)) return null;
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const dir = getStoreDir(opts);
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const filePath = path.join(dir, `${id}.json`);
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if (!fs.existsSync(filePath)) return null;
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return readLearningFile(filePath);
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}
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/**
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* List all learnings, sorted by date (newest first).
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*
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @returns {object[]}
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*/
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function learningsList(opts) {
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const dir = getStoreDir(opts);
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if (!fs.existsSync(dir)) return [];
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const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));
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const results = [];
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for (const file of files) {
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const record = readLearningFile(path.join(dir, file));
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if (record) results.push(record);
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}
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// Sort by date descending (newest first)
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results.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
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return results;
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}
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/**
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* Query learnings by tag.
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*
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* @param {object} query
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* @param {string} [query.tag] - Tag to filter by
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @returns {object[]}
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*/
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function learningsQuery(query, opts) {
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const all = learningsList(opts);
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if (query && query.tag) {
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return all.filter(r => r.tags && r.tags.includes(query.tag));
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}
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return all;
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}
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/**
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* Delete a learning by ID.
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*
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* @param {string} id
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @returns {boolean} true if deleted, false if not found
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*/
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function learningsDelete(id, opts) {
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if (!/^[a-z0-9]+-[a-f0-9]+$/.test(id)) return false;
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const dir = getStoreDir(opts);
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const filePath = path.join(dir, `${id}.json`);
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if (!fs.existsSync(filePath)) return false;
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fs.unlinkSync(filePath);
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return true;
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}
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/**
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* Copy learnings from a project's LEARNINGS.md into the global store.
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* Parses markdown sections as individual learnings. Deduplicates by content hash.
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*
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* Expected LEARNINGS.md format:
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* ## Section Title
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* Learning content paragraph(s)...
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*
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* ## Another Section
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* More content...
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*
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* @param {string} planningDir - Path to .planning/ directory (or directory containing LEARNINGS.md)
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @param {string} [opts.sourceProject] - Project name (defaults to directory basename)
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* @returns {{ total: number, created: number, skipped: number }}
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*/
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function learningsCopyFromProject(planningDir, opts) {
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const learningsPath = path.join(planningDir, 'LEARNINGS.md');
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if (!fs.existsSync(learningsPath)) {
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return { total: 0, created: 0, skipped: 0 };
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}
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const content = fs.readFileSync(learningsPath, 'utf-8');
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const sourceProject = (opts && opts.sourceProject) || path.basename(path.resolve(planningDir, '..'));
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// Parse markdown: split on ## headings
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const sections = content.split(/^## /m).slice(1); // skip preamble before first ##
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let created = 0;
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let skipped = 0;
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for (const section of sections) {
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const lines = section.trim().split('\n');
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const title = lines[0].trim();
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const body = lines.slice(1).join('\n').trim();
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if (!body) continue;
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// Extract tags from title (simple: use words as tags)
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const tags = title.toLowerCase().split(/\s+/).filter(w => w.length > 2);
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const result = learningsWrite({
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source_project: sourceProject,
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learning: body,
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context: title,
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tags,
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}, opts);
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if (result.created) {
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created++;
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} else {
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skipped++;
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}
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}
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return { total: created + skipped, created, skipped };
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}
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/**
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* Prune learnings older than a given threshold.
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*
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* @param {string} olderThan - Duration string like "90d", "30d", "7d"
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* @param {object} [opts]
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* @param {string} [opts.storeDir] - Override store directory
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* @returns {{ removed: number, kept: number }}
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*/
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function learningsPrune(olderThan, opts) {
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const match = /^(\d+)d$/.exec(olderThan);
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if (!match) {
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throw new Error(`Invalid duration format: "${olderThan}" — expected format like "90d"`);
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}
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const days = parseInt(match[1], 10);
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const cutoff = new Date(Date.now() - days * 24 * 60 * 60 * 1000);
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const dir = getStoreDir(opts);
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if (!fs.existsSync(dir)) return { removed: 0, kept: 0 };
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const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));
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let removed = 0;
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let kept = 0;
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for (const file of files) {
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const filePath = path.join(dir, file);
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const record = readLearningFile(filePath);
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if (!record) continue;
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const recordDate = new Date(record.date);
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if (recordDate < cutoff) {
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fs.unlinkSync(filePath);
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removed++;
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} else {
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kept++;
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}
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}
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return { removed, kept };
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}
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// ─── CLI Command Handlers ────────────────────────────────────────────────────
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/**
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* Handle `gsd-tools learnings list`
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* @param {boolean} raw - Raw output flag
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*/
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function cmdLearningsList(raw) {
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const results = learningsList();
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output({ learnings: results, count: results.length }, raw);
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}
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/**
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* Handle `gsd-tools learnings query --tag <tag>`
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* @param {string} tag
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* @param {boolean} raw - Raw output flag
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*/
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function cmdLearningsQuery(tag, raw) {
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const results = learningsQuery({ tag });
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output({ learnings: results, count: results.length, tag }, raw);
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}
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/**
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* Handle `gsd-tools learnings copy`
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* @param {string} cwd - Current working directory
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* @param {boolean} raw - Raw output flag
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*/
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function cmdLearningsCopy(cwd, raw) {
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const planningDir = path.join(cwd, '.planning');
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const result = learningsCopyFromProject(planningDir);
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output(result, raw);
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}
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/**
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* Handle `gsd-tools learnings prune --older-than <duration>`
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* @param {string} olderThan - Duration string like "90d"
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* @param {boolean} raw - Raw output flag
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*/
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function cmdLearningsPrune(olderThan, raw) {
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try {
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const result = learningsPrune(olderThan);
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output(result, raw);
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} catch (err) {
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coreError(err.message);
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}
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}
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/**
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* Handle `gsd-tools learnings delete <id>`
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* @param {string} id
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* @param {boolean} raw - Raw output flag
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*/
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function cmdLearningsDelete(id, raw) {
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if (!/^[a-z0-9]+-[a-f0-9]+$/.test(id)) {
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coreError(`Invalid learning ID: "${id}"`);
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}
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const deleted = learningsDelete(id);
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output({ id, deleted }, raw);
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}
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// ─── Exports ─────────────────────────────────────────────────────────────────
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module.exports = {
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learningsWrite,
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learningsRead,
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learningsList,
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learningsQuery,
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learningsDelete,
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learningsCopyFromProject,
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learningsPrune,
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cmdLearningsList,
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cmdLearningsQuery,
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cmdLearningsCopy,
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cmdLearningsPrune,
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cmdLearningsDelete,
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DEFAULT_STORE_DIR,
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};
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Reference in New Issue
Block a user