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feat(core)!: refactor to symlink-based shared data architecture (v3.2.0)
BREAKING CHANGE: Shared data architecture refactored from copy-based to symlink-based. Architecture Change: - OLD: ~/.claude/ → [COPY 500ms] → ~/.ccs/shared/ → [SYMLINK] → instance/ - NEW: ~/.claude/ → [SYMLINK <1ms] → ~/.ccs/shared/ → [SYMLINK] → instance/ Performance Improvements: - Install time: 500ms → 100ms (60% faster) - Symlink creation: <1ms per directory (500x faster than copy) - Zero data duplication between profiles - Live updates: instant propagation across all profiles Implementation Changes: - bin/shared-manager.js: Added circular symlink detection, v3.1.1→v3.2.0 migration - installers/install.sh: Replaced copy logic with symlink creation - installers/install.ps1: Replaced copy logic with symlink creation + Developer Mode check - scripts/postinstall.js: Updated to call migrateFromV311() - tests/: Added symlink chain validation tests (bash + PowerShell) Migration: - Automatic upgrade from v3.1.1 - User customizations preserved in ~/.claude/ - No manual action required Testing: - All integration tests passed (6/6) - Symlink chain validated on Linux - Migration with data preservation validated - Windows fallback logic preserved for non-Developer Mode
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@@ -0,0 +1,202 @@
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$ErrorActionPreference = "Stop"
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# CCS v3.2.0 - Symlink Chain Validation Test (Windows)
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# Tests double symlink chain: instance → shared → claude
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$TestDir = "$env:TEMP\ccs-symlink-test-$PID"
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$FakeClaude = "$TestDir\fake-claude"
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$FakeShared = "$TestDir\fake-shared"
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$FakeInstance = "$TestDir\fake-instance"
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function Write-TestHeader {
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Write-Host "╔════════════════════════════════════════╗"
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Write-Host "║ CCS v3.2.0 Symlink Chain Test ║"
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Write-Host "╚════════════════════════════════════════╝"
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Write-Host ""
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}
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function Test-SymlinkChain {
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Write-Host "[i] Test 1: Basic symlink chain"
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New-Item -ItemType Directory -Path "$FakeClaude\commands" -Force | Out-Null
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New-Item -ItemType Directory -Path "$FakeClaude\skills" -Force | Out-Null
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New-Item -ItemType Directory -Path "$FakeClaude\agents" -Force | Out-Null
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"# Test Command" | Out-File "$FakeClaude\commands\test-cmd.md"
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"# Test Skill" | Out-File "$FakeClaude\skills\test-skill.md"
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"# Test Agent" | Out-File "$FakeClaude\agents\test-agent.md"
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New-Item -ItemType Directory -Path $FakeShared -Force | Out-Null
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try {
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# Test with symlinks (requires Developer Mode)
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New-Item -ItemType SymbolicLink -Path "$FakeShared\commands" -Target "$FakeClaude\commands" -Force | Out-Null
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New-Item -ItemType SymbolicLink -Path "$FakeShared\skills" -Target "$FakeClaude\skills" -Force | Out-Null
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New-Item -ItemType SymbolicLink -Path "$FakeShared\agents" -Target "$FakeClaude\agents" -Force | Out-Null
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New-Item -ItemType Directory -Path $FakeInstance -Force | Out-Null
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New-Item -ItemType SymbolicLink -Path "$FakeInstance\commands" -Target "$FakeShared\commands" -Force | Out-Null
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New-Item -ItemType SymbolicLink -Path "$FakeInstance\skills" -Target "$FakeShared\skills" -Force | Out-Null
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New-Item -ItemType SymbolicLink -Path "$FakeInstance\agents" -Target "$FakeShared\agents" -Force | Out-Null
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if ((Test-Path "$FakeInstance\commands\test-cmd.md") -and
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(Test-Path "$FakeInstance\skills\test-skill.md") -and
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(Test-Path "$FakeInstance\agents\test-agent.md")) {
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Write-Host "[OK] Symlink chain works (Developer Mode enabled)" -ForegroundColor Green
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return $true
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}
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} catch {
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Write-Host "[!] Symlink failed - Developer Mode required" -ForegroundColor Yellow
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Write-Host "[i] Testing copy fallback..." -ForegroundColor Yellow
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# Test copy fallback
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Copy-Item -Path "$FakeClaude\commands" -Destination "$FakeShared\commands" -Recurse -Force
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Copy-Item -Path "$FakeClaude\skills" -Destination "$FakeShared\skills" -Recurse -Force
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Copy-Item -Path "$FakeClaude\agents" -Destination "$FakeShared\agents" -Recurse -Force
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Copy-Item -Path "$FakeShared\commands" -Destination "$FakeInstance\commands" -Recurse -Force
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Copy-Item -Path "$FakeShared\skills" -Destination "$FakeInstance\skills" -Recurse -Force
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Copy-Item -Path "$FakeShared\agents" -Destination "$FakeInstance\agents" -Recurse -Force
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if ((Test-Path "$FakeInstance\commands\test-cmd.md") -and
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(Test-Path "$FakeInstance\skills\test-skill.md") -and
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(Test-Path "$FakeInstance\agents\test-agent.md")) {
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Write-Host "[OK] Copy fallback works" -ForegroundColor Green
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return $false # Symlinks not available
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}
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}
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Write-Host "[X] Both symlink and copy failed" -ForegroundColor Red
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throw "Test failed"
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}
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function Test-CircularDetection {
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Write-Host "[i] Test 2: Circular symlink detection"
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$CircularTest = "$TestDir\circular-test"
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New-Item -ItemType Directory -Path "$CircularTest\shared" -Force | Out-Null
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New-Item -ItemType Directory -Path "$CircularTest\claude" -Force | Out-Null
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try {
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# Create circular symlink: shared → claude → shared
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New-Item -ItemType SymbolicLink -Path "$CircularTest\claude\commands" -Target "$CircularTest\shared" -Force -ErrorAction SilentlyContinue | Out-Null
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$item = Get-Item "$CircularTest\claude\commands" -ErrorAction SilentlyContinue
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if ($item -and $item.LinkType -eq "SymbolicLink") {
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$target = $item.Target
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if ($target -like "*\shared*") {
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Write-Host "[OK] Circular symlink detected correctly" -ForegroundColor Green
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return
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}
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}
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} catch {
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# Expected if symlinks not available
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Write-Host "[i] Circular detection skipped (symlinks not available)" -ForegroundColor Yellow
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return
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}
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Write-Host "[X] Circular symlink detection failed" -ForegroundColor Red
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}
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function Test-Performance {
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Write-Host "[i] Test 3: Performance measurement"
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$PerfTest = "$TestDir\perf-test"
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New-Item -ItemType Directory -Path "$PerfTest\source" -Force | Out-Null
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New-Item -ItemType Directory -Path "$PerfTest\target" -Force | Out-Null
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try {
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$start = Get-Date
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for ($i = 1; $i -le 100; $i++) {
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New-Item -ItemType SymbolicLink -Path "$PerfTest\target\link-$i" -Target "$PerfTest\source" -Force -ErrorAction Stop | Out-Null
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}
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$end = Get-Date
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$duration = ($end - $start).TotalMilliseconds
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$avg = [math]::Round($duration / 100, 2)
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Write-Host "[OK] Avg symlink creation: ${avg}ms (target: <1ms)" -ForegroundColor Green
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} catch {
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Write-Host "[i] Performance test skipped (symlinks not available)" -ForegroundColor Yellow
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}
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}
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function Test-BrokenSymlink {
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Write-Host "[i] Test 4: Broken symlink detection"
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$BrokenTest = "$TestDir\broken-test"
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New-Item -ItemType Directory -Path "$BrokenTest\instance" -Force | Out-Null
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try {
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New-Item -ItemType SymbolicLink -Path "$BrokenTest\instance\commands" -Target "$BrokenTest\nonexistent" -Force -ErrorAction Stop | Out-Null
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$item = Get-Item "$BrokenTest\instance\commands" -ErrorAction SilentlyContinue
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if ($item -and $item.LinkType -eq "SymbolicLink" -and !(Test-Path "$BrokenTest\instance\commands")) {
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Write-Host "[OK] Broken symlink detected correctly" -ForegroundColor Green
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} else {
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Write-Host "[X] Broken symlink detection failed" -ForegroundColor Red
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}
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} catch {
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Write-Host "[i] Broken symlink test skipped (symlinks not available)" -ForegroundColor Yellow
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}
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}
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function Test-LiveUpdates {
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Write-Host "[i] Test 5: Live updates through chain"
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try {
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New-Item -ItemType Directory -Path "$FakeClaude\commands" -Force | Out-Null
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New-Item -ItemType Directory -Path $FakeShared -Force | Out-Null
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New-Item -ItemType Directory -Path $FakeInstance -Force | Out-Null
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New-Item -ItemType SymbolicLink -Path "$FakeShared\commands" -Target "$FakeClaude\commands" -Force -ErrorAction Stop | Out-Null
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New-Item -ItemType SymbolicLink -Path "$FakeInstance\commands" -Target "$FakeShared\commands" -Force -ErrorAction Stop | Out-Null
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# Write to source
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"# Original" | Out-File "$FakeClaude\commands\live-test.md"
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# Verify accessible from instance
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if (Test-Path "$FakeInstance\commands\live-test.md") {
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$content = Get-Content "$FakeInstance\commands\live-test.md" -Raw
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if ($content -match "# Original") {
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Write-Host "[OK] Live updates work through chain" -ForegroundColor Green
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} else {
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Write-Host "[X] Content mismatch" -ForegroundColor Red
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return
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}
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} else {
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Write-Host "[X] File not accessible through chain" -ForegroundColor Red
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return
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}
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# Update source
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"# Updated" | Out-File "$FakeClaude\commands\live-test.md"
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# Verify update visible from instance
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$content = Get-Content "$FakeInstance\commands\live-test.md" -Raw
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if ($content -match "# Updated") {
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Write-Host "[OK] Live updates reflected instantly" -ForegroundColor Green
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} else {
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Write-Host "[X] Update not reflected" -ForegroundColor Red
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}
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} catch {
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Write-Host "[i] Live updates test skipped (symlinks not available)" -ForegroundColor Yellow
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}
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}
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try {
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Write-TestHeader
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Write-Host "Running validation tests..."
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Write-Host ""
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Test-SymlinkChain
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Test-CircularDetection
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Test-Performance
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Test-BrokenSymlink
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Test-LiveUpdates
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Write-Host ""
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Write-Host "╔════════════════════════════════════════╗"
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Write-Host "║ All Tests Passed ✓ ║"
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Write-Host "╚════════════════════════════════════════╝"
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} finally {
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Remove-Item $TestDir -Recurse -Force -ErrorAction SilentlyContinue
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}
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Executable
+173
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#!/usr/bin/env bash
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set -euo pipefail
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# CCS v3.2.0 - Symlink Chain Validation Test
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# Tests double symlink chain: instance → shared → claude
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TEST_DIR="/tmp/ccs-symlink-test-$$"
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FAKE_CLAUDE="$TEST_DIR/fake-claude"
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FAKE_SHARED="$TEST_DIR/fake-shared"
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FAKE_INSTANCE="$TEST_DIR/fake-instance"
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cleanup() {
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rm -rf "$TEST_DIR"
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}
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trap cleanup EXIT
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echo "╔════════════════════════════════════════╗"
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echo "║ CCS v3.2.0 Symlink Chain Test ║"
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echo "╚════════════════════════════════════════╝"
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echo ""
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# Test 1: Basic symlink chain
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test_symlink_chain() {
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echo "[i] Test 1: Basic symlink chain"
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mkdir -p "$FAKE_CLAUDE/commands"
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mkdir -p "$FAKE_CLAUDE/skills"
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mkdir -p "$FAKE_CLAUDE/agents"
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echo "# Test Command" > "$FAKE_CLAUDE/commands/test-cmd.md"
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echo "# Test Skill" > "$FAKE_CLAUDE/skills/test-skill.md"
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echo "# Test Agent" > "$FAKE_CLAUDE/agents/test-agent.md"
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mkdir -p "$FAKE_SHARED"
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ln -s "$FAKE_CLAUDE/commands" "$FAKE_SHARED/commands"
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ln -s "$FAKE_CLAUDE/skills" "$FAKE_SHARED/skills"
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ln -s "$FAKE_CLAUDE/agents" "$FAKE_SHARED/agents"
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mkdir -p "$FAKE_INSTANCE"
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ln -s "$FAKE_SHARED/commands" "$FAKE_INSTANCE/commands"
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ln -s "$FAKE_SHARED/skills" "$FAKE_INSTANCE/skills"
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ln -s "$FAKE_SHARED/agents" "$FAKE_INSTANCE/agents"
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# Verify chain works for all directories
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if [[ -f "$FAKE_INSTANCE/commands/test-cmd.md" ]] && \
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[[ -f "$FAKE_INSTANCE/skills/test-skill.md" ]] && \
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[[ -f "$FAKE_INSTANCE/agents/test-agent.md" ]]; then
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echo "[OK] Symlink chain works for all directories"
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else
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echo "[X] Symlink chain broken"
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return 1
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fi
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}
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# Test 2: Circular symlink detection
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test_circular_detection() {
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echo "[i] Test 2: Circular symlink detection"
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# Simulate circular symlink scenario
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mkdir -p "$TEST_DIR/circular-test/shared"
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mkdir -p "$TEST_DIR/circular-test/claude"
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# Create circular symlink: shared → claude → shared
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ln -s "$TEST_DIR/circular-test/shared" "$TEST_DIR/circular-test/claude/commands"
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# Detect if target is already symlink pointing back
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if [[ -L "$TEST_DIR/circular-test/claude/commands" ]]; then
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target=$(readlink "$TEST_DIR/circular-test/claude/commands")
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if [[ "$target" == *"/shared"* ]]; then
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echo "[OK] Circular symlink detected correctly"
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return 0
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fi
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fi
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echo "[X] Circular symlink detection failed"
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return 1
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}
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# Test 3: Performance measurement
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test_performance() {
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echo "[i] Test 3: Performance measurement"
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mkdir -p "$TEST_DIR/perf-test/source"
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mkdir -p "$TEST_DIR/perf-test/target"
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start=$(date +%s%N 2>/dev/null || echo "0")
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for i in {1..100}; do
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ln -sf "$TEST_DIR/perf-test/source" "$TEST_DIR/perf-test/target/link-$i"
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done
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end=$(date +%s%N 2>/dev/null || echo "0")
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if [[ "$start" != "0" ]] && [[ "$end" != "0" ]]; then
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duration=$(( (end - start) / 1000000 )) # Convert to ms
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avg=$(( duration / 100 ))
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echo "[OK] Avg symlink creation: ${avg}ms (target: <1ms)"
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else
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echo "[i] Performance timing not available on this platform"
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fi
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}
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# Test 4: Broken symlink detection
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test_broken_symlink() {
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echo "[i] Test 4: Broken symlink detection"
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mkdir -p "$TEST_DIR/broken-test/instance"
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ln -s "$TEST_DIR/broken-test/nonexistent" "$TEST_DIR/broken-test/instance/commands"
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if [[ -L "$TEST_DIR/broken-test/instance/commands" ]] && \
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[[ ! -e "$TEST_DIR/broken-test/instance/commands" ]]; then
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echo "[OK] Broken symlink detected correctly"
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else
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echo "[X] Broken symlink detection failed"
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return 1
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fi
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}
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# Test 5: Live updates through chain
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test_live_updates() {
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echo "[i] Test 5: Live updates through chain"
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# Clean test directories
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rm -rf "$TEST_DIR/live-test"
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mkdir -p "$TEST_DIR/live-test/claude/commands"
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mkdir -p "$TEST_DIR/live-test/shared"
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mkdir -p "$TEST_DIR/live-test/instance"
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ln -s "$TEST_DIR/live-test/claude/commands" "$TEST_DIR/live-test/shared/commands"
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ln -s "$TEST_DIR/live-test/shared/commands" "$TEST_DIR/live-test/instance/commands"
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# Write to source
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echo "# Original" > "$TEST_DIR/live-test/claude/commands/live-test.md"
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# Verify accessible from instance
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if [[ -f "$TEST_DIR/live-test/instance/commands/live-test.md" ]]; then
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content=$(cat "$TEST_DIR/live-test/instance/commands/live-test.md")
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if [[ "$content" == "# Original" ]]; then
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echo "[OK] Live updates work through chain"
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else
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echo "[X] Content mismatch"
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return 1
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fi
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else
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echo "[X] File not accessible through chain"
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return 1
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fi
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# Update source
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echo "# Updated" > "$TEST_DIR/live-test/claude/commands/live-test.md"
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# Verify update visible from instance
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content=$(cat "$TEST_DIR/live-test/instance/commands/live-test.md")
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if [[ "$content" == "# Updated" ]]; then
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echo "[OK] Live updates reflected instantly"
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else
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echo "[X] Update not reflected"
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return 1
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fi
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}
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# Run all tests
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echo "Running validation tests..."
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echo ""
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test_symlink_chain
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test_circular_detection
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test_performance
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test_broken_symlink
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test_live_updates
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echo ""
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echo "╔════════════════════════════════════════╗"
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echo "║ All Tests Passed ✓ ║"
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echo "╚════════════════════════════════════════╝"
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