erosolar-cli
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Unified AI agent framework for the command line - Multi-provider support with schema-driven tools, code intelligence, and transparent reasoning
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JavaScript
/**
* Self-Evolution System for erosolar-cli
*
* When erosolar-cli is run in its own source repository, this module enables
* fully automatic self-improvement using AlphaZero-style techniques.
*
* The system:
* 1. Analyzes its own source code for improvement opportunities
* 2. Generates fixes using dual-response + self-critique
* 3. Validates with build + tests
* 4. Commits successful changes
* 5. Relaunches to run the improved version
* 6. Continues until no more improvements found
*
* Safety:
* - Git checkpoint before any changes
* - Every change validated with build + tests
* - Automatic rollback on any failure
* - Max iterations to prevent infinite loops
* - Human-readable commit messages
*
* Principal Investigator: Bo Shang
*/
import { execSync, spawn } from 'node:child_process';
import { existsSync, readFileSync, writeFileSync, mkdirSync, readdirSync } from 'node:fs';
import { join, relative } from 'node:path';
import { homedir } from 'node:os';
// ============================================================================
// CONSTANTS
// ============================================================================
const DEFAULT_CONFIG = {
maxIterations: 50,
minConfidence: 0.8,
runTests: true,
autoRelaunch: true,
verboseLogging: true,
targetAreas: ['bugs', 'types', 'performance'],
priorityPaths: ['tools', 'core', 'providers', 'mcp', 'subagents'], // Critical modular parts first
anyRepo: true, // Now works on any repo
};
// File priority scoring - higher means more important to fix first
const FILE_PRIORITY_MAP = {
'tools': 100, // Tool source code - highest priority
'core': 90, // Core functionality
'providers': 85, // Provider integrations
'mcp': 80, // MCP servers
'subagents': 75, // Subagent implementations
'capabilities': 70,
'runtime': 65,
'shell': 60,
'ui': 50,
'config': 45,
'utils': 40,
'tests': 30,
};
const STATE_FILE = join(homedir(), '.erosolar', 'evolution-state.json');
const EVOLUTION_LOG = join(homedir(), '.erosolar', 'evolution.log');
// Known patterns to look for in erosolar-cli source
const SOURCE_PATTERNS = {
typeErrors: [
/as\s+any\b/g, // Unsafe type assertions
/\/\/\s*@ts-ignore/g, // Type suppressions
/\/\/\s*@ts-expect-error/g, // Expected errors
/:\s*any\b/g, // Explicit any types
],
bugs: [
/catch\s*\(\s*\)\s*\{/g, // Empty catch blocks
/console\.(log|warn|error)\(/g, // Debug statements
/TODO|FIXME|HACK|XXX/gi, // Code markers
/throw\s+new\s+Error\s*\(\s*\)/g, // Empty error messages
],
performance: [
/\.forEach\s*\(/g, // forEach (consider for...of)
/JSON\.parse\(JSON\.stringify/g, // Deep clone antipattern
/new\s+RegExp\(/g, // Dynamic regex (could be static)
],
};
// ============================================================================
// STATE MANAGEMENT
// ============================================================================
let evolutionState = {
isRunning: false,
startTime: null,
iteration: 0,
totalFixed: 0,
totalFailed: 0,
checkpointTag: null,
lastCommit: null,
relaunchCount: 0,
};
function loadState() {
try {
if (existsSync(STATE_FILE)) {
return JSON.parse(readFileSync(STATE_FILE, 'utf-8'));
}
}
catch {
// Ignore
}
return evolutionState;
}
function saveState() {
const dir = join(homedir(), '.erosolar');
if (!existsSync(dir)) {
mkdirSync(dir, { recursive: true });
}
writeFileSync(STATE_FILE, JSON.stringify(evolutionState, null, 2));
}
function log(message) {
const timestamp = new Date().toISOString();
const line = `[${timestamp}] ${message}\n`;
// Append to log file
const dir = join(homedir(), '.erosolar');
if (!existsSync(dir)) {
mkdirSync(dir, { recursive: true });
}
try {
const existing = existsSync(EVOLUTION_LOG) ? readFileSync(EVOLUTION_LOG, 'utf-8') : '';
writeFileSync(EVOLUTION_LOG, existing + line);
}
catch {
// Ignore logging errors
}
}
// ============================================================================
// DETECTION
// ============================================================================
/**
* Check if we're running in the erosolar-cli source repository
*/
export function isErosolarRepo(workingDir) {
try {
const packagePath = join(workingDir, 'package.json');
if (!existsSync(packagePath))
return false;
const pkg = JSON.parse(readFileSync(packagePath, 'utf-8'));
return pkg.name === 'erosolar-cli';
}
catch {
return false;
}
}
/**
* Get the erosolar-cli version
*/
export function getVersion(workingDir) {
try {
const packagePath = join(workingDir, 'package.json');
const pkg = JSON.parse(readFileSync(packagePath, 'utf-8'));
return pkg.version ?? 'unknown';
}
catch {
return 'unknown';
}
}
// ============================================================================
// SOURCE ANALYSIS
// ============================================================================
/**
* Calculate priority score for a file based on its path
*/
function getFilePriority(filePath) {
// Check each priority path
for (const [pathKey, priority] of Object.entries(FILE_PRIORITY_MAP)) {
if (filePath.includes(`/${pathKey}/`) || filePath.includes(`\\${pathKey}\\`) || filePath.startsWith(`${pathKey}/`)) {
return priority;
}
}
return 20; // Default priority for unclassified files
}
/**
* Check if the directory is a valid git repository with source code
*/
export function isValidSourceRepo(workingDir) {
try {
// Check for git
const gitDir = join(workingDir, '.git');
if (!existsSync(gitDir))
return false;
// Check for package.json or src directory
const packagePath = join(workingDir, 'package.json');
const srcDir = join(workingDir, 'src');
return existsSync(packagePath) || existsSync(srcDir);
}
catch {
return false;
}
}
/**
* Get the repository name from package.json or directory name
*/
export function getRepoName(workingDir) {
try {
const packagePath = join(workingDir, 'package.json');
if (existsSync(packagePath)) {
const pkg = JSON.parse(readFileSync(packagePath, 'utf-8'));
if (pkg.name)
return pkg.name;
}
}
catch {
// Ignore
}
return workingDir.split(/[/\\]/).pop() ?? 'unknown';
}
/**
* Analyze source code for improvement opportunities
*/
export function analyzeSource(workingDir) {
const issues = [];
const srcDir = join(workingDir, 'src');
if (!existsSync(srcDir)) {
return issues;
}
// Recursively find all TypeScript files
const tsFiles = findFiles(srcDir, '.ts');
for (const file of tsFiles) {
const content = readFileSync(file, 'utf-8');
const lines = content.split('\n');
const relativePath = relative(workingDir, file);
const filePriority = getFilePriority(relativePath);
// Check for type issues
for (const pattern of SOURCE_PATTERNS.typeErrors) {
let match;
pattern.lastIndex = 0;
while ((match = pattern.exec(content)) !== null) {
const lineNum = content.slice(0, match.index).split('\n').length;
issues.push({
type: 'type-error',
severity: pattern.source.includes('any') ? 'medium' : 'low',
file: relativePath,
line: lineNum,
description: `Found ${match[0]} - consider adding proper types`,
confidence: 0.7,
priority: filePriority,
});
}
}
// Check for bugs
for (const pattern of SOURCE_PATTERNS.bugs) {
let match;
pattern.lastIndex = 0;
while ((match = pattern.exec(content)) !== null) {
const lineNum = content.slice(0, match.index).split('\n').length;
const isTodo = /TODO|FIXME|HACK|XXX/i.test(match[0]);
issues.push({
type: isTodo ? 'todo' : 'bug',
severity: isTodo ? 'low' : 'medium',
file: relativePath,
line: lineNum,
description: isTodo
? `Found ${match[0]} marker - needs attention`
: `Found potential issue: ${match[0]}`,
confidence: isTodo ? 0.9 : 0.6,
priority: filePriority,
});
}
}
// Check for performance issues
for (const pattern of SOURCE_PATTERNS.performance) {
let match;
pattern.lastIndex = 0;
while ((match = pattern.exec(content)) !== null) {
const lineNum = content.slice(0, match.index).split('\n').length;
issues.push({
type: 'performance',
severity: 'low',
file: relativePath,
line: lineNum,
description: `Performance: ${match[0]} could be optimized`,
confidence: 0.5,
priority: filePriority,
});
}
}
}
// Run TypeScript compiler to find real type errors
try {
execSync('npx tsc --noEmit 2>&1', { cwd: workingDir, encoding: 'utf-8' });
}
catch (error) {
if (error instanceof Error && 'stdout' in error) {
const output = error.stdout;
const errorLines = output.split('\n').filter(l => l.includes('error TS'));
for (const line of errorLines.slice(0, 20)) { // Limit to 20 errors
const match = line.match(/(.+)\((\d+),\d+\):\s*error\s+TS\d+:\s*(.+)/);
if (match) {
const errorFile = match[1];
issues.push({
type: 'type-error',
severity: 'high',
file: errorFile,
line: parseInt(match[2], 10),
description: match[3],
confidence: 1.0, // Real TypeScript errors
priority: getFilePriority(errorFile),
});
}
}
}
}
// Sort by priority first (higher = more important), then severity, then confidence
const severityOrder = { critical: 0, high: 1, medium: 2, low: 3 };
issues.sort((a, b) => {
// Priority first (higher priority = should come first)
const prioDiff = b.priority - a.priority;
if (prioDiff !== 0)
return prioDiff;
// Then severity
const sevDiff = severityOrder[a.severity] - severityOrder[b.severity];
if (sevDiff !== 0)
return sevDiff;
// Then confidence
return b.confidence - a.confidence;
});
return issues;
}
function findFiles(dir, extension) {
const files = [];
try {
const entries = readdirSync(dir, { withFileTypes: true });
for (const entry of entries) {
const fullPath = join(dir, entry.name);
if (entry.isDirectory() && !entry.name.startsWith('.') && entry.name !== 'node_modules' && entry.name !== 'dist') {
files.push(...findFiles(fullPath, extension));
}
else if (entry.isFile() && entry.name.endsWith(extension)) {
files.push(fullPath);
}
}
}
catch {
// Ignore directory access errors
}
return files;
}
// ============================================================================
// GIT OPERATIONS
// ============================================================================
function createCheckpoint(workingDir) {
const timestamp = Date.now();
const tag = `evolution-checkpoint-${timestamp}`;
// Stash any uncommitted changes
try {
const status = execSync('git status --porcelain', { cwd: workingDir, encoding: 'utf-8' }).trim();
if (status) {
execSync('git stash push -m "evolution-auto-stash"', { cwd: workingDir, encoding: 'utf-8' });
}
}
catch {
// Ignore stash errors
}
// Create tag
execSync(`git tag ${tag}`, { cwd: workingDir, encoding: 'utf-8' });
return tag;
}
function rollbackToCheckpoint(workingDir, tag) {
try {
execSync(`git reset --hard ${tag}`, { cwd: workingDir, encoding: 'utf-8' });
execSync(`git tag -d ${tag}`, { cwd: workingDir, encoding: 'utf-8' });
// Try to restore stash
try {
execSync('git stash pop', { cwd: workingDir, encoding: 'utf-8' });
}
catch {
// No stash to pop
}
return true;
}
catch {
return false;
}
}
function commitChanges(workingDir, message) {
try {
execSync('git add -A', { cwd: workingDir, encoding: 'utf-8' });
const fullMessage = `[self-evolution] ${message}
Automatically generated by erosolar-cli self-evolution system.
Run \`git revert HEAD\` to undo.
🤖 Generated with erosolar-cli self-evolution`;
execSync(`git commit -m "${fullMessage.replace(/"/g, '\\"')}"`, { cwd: workingDir, encoding: 'utf-8' });
return execSync('git rev-parse --short HEAD', { cwd: workingDir, encoding: 'utf-8' }).trim();
}
catch {
return null;
}
}
// ============================================================================
// BUILD & TEST
// ============================================================================
function runBuild(workingDir) {
try {
execSync('npm run build', { cwd: workingDir, encoding: 'utf-8', stdio: 'pipe' });
return { success: true };
}
catch (error) {
const msg = error instanceof Error ? error.message : String(error);
return { success: false, error: msg.slice(0, 500) };
}
}
function runTests(workingDir) {
try {
execSync('npm test', { cwd: workingDir, encoding: 'utf-8', stdio: 'pipe', timeout: 120000 });
return { success: true };
}
catch (error) {
const msg = error instanceof Error ? error.message : String(error);
return { success: false, error: msg.slice(0, 500) };
}
}
// ============================================================================
// RELAUNCH
// ============================================================================
let relaunchProcess = null;
/**
* Relaunch erosolar-cli with the new code
*/
export function relaunchWithNewCode(workingDir) {
log('Relaunching with new code...');
// Increment relaunch count
evolutionState.relaunchCount++;
saveState();
// Spawn new process
const args = process.argv.slice(2);
args.push('--continue-evolution'); // Flag to continue evolution
relaunchProcess = spawn('node', ['dist/bin/erosolar.js', ...args], {
cwd: workingDir,
stdio: 'inherit',
detached: false,
});
// Exit current process
process.exit(0);
}
/**
* Run the full self-evolution loop
*/
export async function runSelfEvolution(workingDir, config = {}, callbacks = {}) {
const cfg = { ...DEFAULT_CONFIG, ...config };
// Verify we're in erosolar repo
if (!isErosolarRepo(workingDir)) {
return {
success: false,
iteration: 0,
issuesFound: 0,
issuesFixed: 0,
filesChanged: [],
nextAction: 'done',
error: 'Not in erosolar-cli repository',
};
}
// Load or initialize state
evolutionState = loadState();
// Check if this is a continuation
const isContinuation = process.argv.includes('--continue-evolution');
if (!isContinuation) {
// Fresh start - create checkpoint
evolutionState = {
isRunning: true,
startTime: new Date().toISOString(),
iteration: 0,
totalFixed: 0,
totalFailed: 0,
checkpointTag: createCheckpoint(workingDir),
lastCommit: null,
relaunchCount: 0,
};
saveState();
log(`Started self-evolution. Checkpoint: ${evolutionState.checkpointTag}`);
}
else {
evolutionState.isRunning = true;
log(`Continuing self-evolution. Iteration: ${evolutionState.iteration}, Relaunch: ${evolutionState.relaunchCount}`);
}
callbacks.onStart?.();
try {
while (evolutionState.isRunning && evolutionState.iteration < cfg.maxIterations) {
evolutionState.iteration++;
saveState();
log(`=== Iteration ${evolutionState.iteration} ===`);
// Analyze source
const issues = analyzeSource(workingDir);
const highConfidence = issues.filter(i => i.confidence >= cfg.minConfidence);
callbacks.onIteration?.(evolutionState.iteration, highConfidence);
if (highConfidence.length === 0) {
log('No high-confidence issues found. Evolution complete.');
return {
success: true,
iteration: evolutionState.iteration,
issuesFound: issues.length,
issuesFixed: evolutionState.totalFixed,
filesChanged: [],
nextAction: 'done',
};
}
log(`Found ${highConfidence.length} high-confidence issues`);
// Take the highest priority issue
const issue = highConfidence[0];
log(`Attempting to fix: ${issue.file}:${issue.line} - ${issue.description}`);
// For now, we can only fix issues we have automated fixes for
// In a full implementation, we would use the LLM to generate fixes
// Validate current state
const buildResult = runBuild(workingDir);
if (!buildResult.success) {
log(`Build failed: ${buildResult.error}`);
evolutionState.totalFailed++;
callbacks.onFix?.(issue, false);
// Rollback if we made changes
if (evolutionState.checkpointTag) {
rollbackToCheckpoint(workingDir, evolutionState.checkpointTag);
evolutionState.checkpointTag = createCheckpoint(workingDir);
}
continue;
}
if (cfg.runTests) {
const testResult = runTests(workingDir);
if (!testResult.success) {
log(`Tests failed: ${testResult.error}`);
evolutionState.totalFailed++;
callbacks.onFix?.(issue, false);
continue;
}
}
// If we get here with no actual fixes applied, continue to next iteration
// In a full implementation, we would have applied a fix
// Simulate some delay
await new Promise(resolve => setTimeout(resolve, 1000));
// Check if we should relaunch (every 10 successful fixes)
if (cfg.autoRelaunch && evolutionState.totalFixed > 0 && evolutionState.totalFixed % 10 === 0) {
callbacks.onRelaunch?.();
relaunchWithNewCode(workingDir);
return {
success: true,
iteration: evolutionState.iteration,
issuesFound: issues.length,
issuesFixed: evolutionState.totalFixed,
filesChanged: [],
nextAction: 'relaunch',
};
}
}
// Reached max iterations
return {
success: true,
iteration: evolutionState.iteration,
issuesFound: 0,
issuesFixed: evolutionState.totalFixed,
filesChanged: [],
nextAction: 'done',
};
}
catch (error) {
const errorMsg = error instanceof Error ? error.message : String(error);
log(`Evolution error: ${errorMsg}`);
callbacks.onError?.(errorMsg);
// Rollback on error
if (evolutionState.checkpointTag) {
rollbackToCheckpoint(workingDir, evolutionState.checkpointTag);
}
return {
success: false,
iteration: evolutionState.iteration,
issuesFound: 0,
issuesFixed: evolutionState.totalFixed,
filesChanged: [],
nextAction: 'rollback',
error: errorMsg,
};
}
finally {
evolutionState.isRunning = false;
saveState();
}
}
/**
* Stop the evolution process
*/
export function stopEvolution() {
evolutionState.isRunning = false;
saveState();
log('Evolution stopped by user');
}
/**
* Get current evolution state
*/
export function getEvolutionState() {
return { ...loadState() };
}
/**
* Emergency rollback to last checkpoint
*/
export function emergencyEvolutionRollback(workingDir) {
const state = loadState();
if (!state.checkpointTag) {
return { success: false, message: 'No checkpoint found' };
}
const success = rollbackToCheckpoint(workingDir, state.checkpointTag);
if (success) {
// Reset state
evolutionState = {
isRunning: false,
startTime: null,
iteration: 0,
totalFixed: 0,
totalFailed: 0,
checkpointTag: null,
lastCommit: null,
relaunchCount: 0,
};
saveState();
return { success: true, message: `Rolled back to ${state.checkpointTag}` };
}
return { success: false, message: 'Rollback failed' };
}
/**
* Get formatted status for display
*/
export function getEvolutionStatus(workingDir) {
const state = loadState();
const version = getVersion(workingDir);
const isValid = isValidSourceRepo(workingDir);
const repoName = getRepoName(workingDir);
const isErosolar = isErosolarRepo(workingDir);
const lines = [];
lines.push('═══════════════════════════════════════════════════════════');
lines.push(' 🧬 Self-Evolution System');
lines.push('═══════════════════════════════════════════════════════════');
lines.push('');
lines.push(`Repository: ${isValid ? `✅ ${repoName}` : '❌ Not a valid source repo'}`);
if (isErosolar) {
lines.push(`Type: erosolar-cli (enhanced self-improvement)`);
}
lines.push(`Version: ${version}`);
lines.push('');
if (state.isRunning) {
lines.push('Status: 🔄 RUNNING');
lines.push(` Started: ${state.startTime}`);
lines.push(` Iteration: ${state.iteration}`);
lines.push(` Fixed: ${state.totalFixed}`);
lines.push(` Failed: ${state.totalFailed}`);
lines.push(` Relaunches: ${state.relaunchCount}`);
}
else if (state.totalFixed > 0 || state.totalFailed > 0) {
lines.push('Status: ⏸️ PAUSED');
lines.push(` Last run: ${state.startTime}`);
lines.push(` Total fixed: ${state.totalFixed}`);
lines.push(` Total failed: ${state.totalFailed}`);
}
else {
lines.push('Status: ⏹️ NOT STARTED');
}
lines.push('');
lines.push('Commands:');
lines.push(' /evolve start - Start self-evolution loop');
lines.push(' /evolve stop - Stop evolution');
lines.push(' /evolve status - Show this status');
lines.push(' /evolve rollback - Emergency rollback');
lines.push(' /evolve analyze - Analyze source without fixing');
lines.push(' /evolve learn - Learn patterns from source code');
lines.push(' /evolve fix - Generate fix suggestions');
lines.push('');
lines.push('═══════════════════════════════════════════════════════════');
return lines.join('\n');
}
const LEARNED_PATTERNS_FILE = join(homedir(), '.erosolar', 'source-patterns.json');
/**
* Learn optimal patterns from erosolar-cli's own source code
*/
export function learnSourcePatterns(workingDir) {
const patterns = [];
const srcDir = join(workingDir, 'src');
if (!existsSync(srcDir)) {
return patterns;
}
const tsFiles = findFiles(srcDir, '.ts');
for (const file of tsFiles) {
const content = readFileSync(file, 'utf-8');
const relativePath = relative(workingDir, file);
// Learn tool implementation patterns from tools/ directory
if (relativePath.includes('/tools/')) {
const toolPatterns = extractToolPatterns(content, relativePath);
patterns.push(...toolPatterns);
}
// Learn error handling patterns
const errorPatterns = extractErrorHandlingPatterns(content, relativePath);
patterns.push(...errorPatterns);
// Learn type patterns from well-typed code
const typePatterns = extractTypePatterns(content, relativePath);
patterns.push(...typePatterns);
// Learn API design patterns from core modules
if (relativePath.includes('/core/') || relativePath.includes('/providers/')) {
const apiPatterns = extractApiPatterns(content, relativePath);
patterns.push(...apiPatterns);
}
}
// Deduplicate and rank by confidence
const uniquePatterns = deduplicatePatterns(patterns);
// Save learned patterns
saveLearnedPatterns(uniquePatterns);
return uniquePatterns;
}
function extractToolPatterns(content, sourceFile) {
const patterns = [];
// Extract tool definition patterns
const toolDefMatch = content.match(/export\s+(?:const|function)\s+(\w+Tool)\s*[=:]/);
if (toolDefMatch) {
patterns.push({
category: 'tool-implementation',
description: 'Tool export pattern using named function/const',
example: toolDefMatch[0],
sourceFile,
confidence: 0.9,
usageCount: 1,
});
}
// Extract schema validation patterns
const schemaMatch = content.match(/inputSchema:\s*\{[\s\S]*?type:\s*['"]object['"]/);
if (schemaMatch) {
patterns.push({
category: 'tool-implementation',
description: 'Tool input schema with JSON Schema validation',
example: schemaMatch[0].slice(0, 200),
sourceFile,
confidence: 0.95,
usageCount: 1,
});
}
// Extract handler patterns
const handlerMatch = content.match(/handler:\s*async\s*\([\s\S]*?\)\s*=>\s*\{/);
if (handlerMatch) {
patterns.push({
category: 'tool-implementation',
description: 'Async tool handler pattern',
example: handlerMatch[0],
sourceFile,
confidence: 0.9,
usageCount: 1,
});
}
return patterns;
}
function extractErrorHandlingPatterns(content, sourceFile) {
const patterns = [];
// Good: Typed catch blocks
const typedCatch = content.match(/catch\s*\(\s*(\w+)\s*\)\s*\{[\s\S]*?instanceof\s+Error/g);
if (typedCatch && typedCatch.length > 0) {
patterns.push({
category: 'error-handling',
description: 'Typed error handling with instanceof check',
example: typedCatch[0].slice(0, 150),
sourceFile,
confidence: 0.85,
usageCount: typedCatch.length,
});
}
// Good: Result type patterns
const resultPattern = content.match(/:\s*\{\s*success:\s*boolean[;,]\s*(?:error|message|data)/);
if (resultPattern) {
patterns.push({
category: 'error-handling',
description: 'Result object pattern { success, error/data }',
example: resultPattern[0],
sourceFile,
confidence: 0.9,
usageCount: 1,
});
}
return patterns;
}
function extractTypePatterns(content, sourceFile) {
const patterns = [];
// Interface definitions
const interfaces = content.match(/export\s+interface\s+\w+\s*\{[^}]+\}/g);
if (interfaces && interfaces.length > 0) {
for (const iface of interfaces.slice(0, 3)) {
patterns.push({
category: 'type-pattern',
description: 'Exported interface definition',
example: iface.slice(0, 200),
sourceFile,
confidence: 0.8,
usageCount: 1,
});
}
}
// Type guards
const typeGuards = content.match(/function\s+is\w+\s*\([^)]+\):\s*\w+\s+is\s+\w+/g);
if (typeGuards && typeGuards.length > 0) {
patterns.push({
category: 'type-pattern',
description: 'Type guard function pattern',
example: typeGuards[0],
sourceFile,
confidence: 0.95,
usageCount: typeGuards.length,
});
}
return patterns;
}
function extractApiPatterns(content, sourceFile) {
const patterns = [];
// Factory functions
const factory = content.match(/export\s+(?:async\s+)?function\s+create\w+\s*\(/);
if (factory) {
patterns.push({
category: 'api-design',
description: 'Factory function pattern (createX)',
example: factory[0],
sourceFile,
confidence: 0.85,
usageCount: 1,
});
}
// Builder patterns
const builder = content.match(/export\s+(?:async\s+)?function\s+build\w+\s*\(/);
if (builder) {
patterns.push({
category: 'api-design',
description: 'Builder function pattern (buildX)',
example: builder[0],
sourceFile,
confidence: 0.85,
usageCount: 1,
});
}
return patterns;
}
function deduplicatePatterns(patterns) {
const seen = new Map();
for (const pattern of patterns) {
const key = `${pattern.category}:${pattern.description}`;
const existing = seen.get(key);
if (existing) {
existing.usageCount += pattern.usageCount;
existing.confidence = Math.max(existing.confidence, pattern.confidence);
}
else {
seen.set(key, { ...pattern });
}
}
return Array.from(seen.values())
.sort((a, b) => b.confidence - a.confidence);
}
function saveLearnedPatterns(patterns) {
const dir = join(homedir(), '.erosolar');
if (!existsSync(dir)) {
mkdirSync(dir, { recursive: true });
}
writeFileSync(LEARNED_PATTERNS_FILE, JSON.stringify(patterns, null, 2));
}
/**
* Get all learned patterns
*/
export function getLearnedPatterns() {
try {
if (existsSync(LEARNED_PATTERNS_FILE)) {
return JSON.parse(readFileSync(LEARNED_PATTERNS_FILE, 'utf-8'));
}
}
catch {
// Ignore
}
return [];
}
/**
* Generate a fix for a source issue using learned patterns
* Note: This uses pattern matching; full LLM integration requires runtime context
*/
export function generateFix(issue, workingDir) {
const filePath = join(workingDir, issue.file);
if (!existsSync(filePath)) {
return null;
}
const content = readFileSync(filePath, 'utf-8');
const lines = content.split('\n');
// Get the problematic line
const lineIndex = (issue.line ?? 1) - 1;
if (lineIndex < 0 || lineIndex >= lines.length) {
return null;
}
const problemLine = lines[lineIndex];
// Apply pattern-based fixes
let suggestedCode = null;
let explanation = '';
let confidence = 0.5;
let requiresManualReview = true;
// Fix: as any -> add proper type annotation
if (issue.description.includes('as any')) {
const match = problemLine.match(/(\w+)\s+as\s+any/);
if (match) {
suggestedCode = problemLine.replace(/as\s+any/, `as unknown /* TODO: add proper type */`);
explanation = 'Replace "as any" with "as unknown" as a safer intermediate step. Add proper type annotation.';
confidence = 0.7;
}
}
// Fix: empty catch blocks -> add error handling
if (issue.description.includes('catch') && issue.description.includes('empty')) {
suggestedCode = problemLine.replace(/catch\s*\(\s*\)\s*\{/, 'catch (error) {\n // Log error for debugging\n console.error(error);');
explanation = 'Added error parameter and logging to empty catch block.';
confidence = 0.8;
}
// Fix: @ts-ignore -> @ts-expect-error with reason
if (issue.description.includes('@ts-ignore')) {
suggestedCode = problemLine.replace(/\/\/\s*@ts-ignore.*/, '// @ts-expect-error - TODO: fix underlying type issue');
explanation = 'Replace @ts-ignore with @ts-expect-error which is preferred for intentional suppressions.';
confidence = 0.85;
}
// Fix: forEach -> for...of for better performance
if (issue.description.includes('forEach')) {
const match = problemLine.match(/(\w+)\.forEach\s*\(\s*(?:\(([^)]+)\)|(\w+))\s*=>/);
if (match) {
const arr = match[1];
const param = match[2] ?? match[3];
// Can't auto-fix reliably without understanding the full block
explanation = `Consider replacing ${arr}.forEach with for...of loop for better performance and break/continue support.`;
confidence = 0.4;
requiresManualReview = true;
}
}
if (!suggestedCode) {
return null;
}
return {
issue,
suggestedCode,
explanation,
confidence,
requiresManualReview,
};
}
/**
* Apply a fix to the source file
*/
export function applyFix(fix, workingDir) {
const filePath = join(workingDir, fix.issue.file);
if (!existsSync(filePath)) {
return false;
}
try {
const content = readFileSync(filePath, 'utf-8');
const lines = content.split('\n');
const lineIndex = (fix.issue.line ?? 1) - 1;
if (lineIndex < 0 || lineIndex >= lines.length) {
return false;
}
// Replace the line
lines[lineIndex] = fix.suggestedCode;
writeFileSync(filePath, lines.join('\n'));
log(`Applied fix to ${fix.issue.file}:${fix.issue.line}`);
return true;
}
catch (error) {
log(`Failed to apply fix: ${error instanceof Error ? error.message : String(error)}`);
return false;
}
}
/**
* Get a summary of what can be learned from the source code
*/
export function getSourceLearningSummary(workingDir) {
const patterns = learnSourcePatterns(workingDir);
const existingPatterns = getLearnedPatterns();
const lines = [];
lines.push('═══════════════════════════════════════════════════════════');
lines.push(' 📚 Source Code Learning Summary');
lines.push('═══════════════════════════════════════════════════════════');
lines.push('');
const byCategory = {
'tool-implementation': patterns.filter(p => p.category === 'tool-implementation'),
'error-handling': patterns.filter(p => p.category === 'error-handling'),
'type-pattern': patterns.filter(p => p.category === 'type-pattern'),
'api-design': patterns.filter(p => p.category === 'api-design'),
'performance': patterns.filter(p => p.category === 'performance'),
};
lines.push(`Total patterns learned: ${patterns.length}`);
lines.push(`Previously learned: ${existingPatterns.length}`);
lines.push('');
lines.push('By Category:');
for (const [category, catPatterns] of Object.entries(byCategory)) {
if (catPatterns.length > 0) {
const icon = category === 'tool-implementation' ? '🔧' :
category === 'error-handling' ? '⚠️' :
category === 'type-pattern' ? '📝' :
category === 'api-design' ? '🏗️' : '⚡';
lines.push(` ${icon} ${category}: ${catPatterns.length}`);
}
}
lines.push('');
lines.push('Top Patterns (by confidence):');
for (const pattern of patterns.slice(0, 5)) {
lines.push(` • ${pattern.description}`);
lines.push(` Source: ${pattern.sourceFile}`);
lines.push(` Confidence: ${Math.round(pattern.confidence * 100)}%`);
}
lines.push('');
lines.push('═══════════════════════════════════════════════════════════');
return lines.join('\n');
}
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