282 lines
8.4 KiB
Plaintext
Executable File
282 lines
8.4 KiB
Plaintext
Executable File
/*
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PACKAGE: sentinel/toolchain
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MODULE 2: POLYGLOT EXECUTOR & CONTAINER RUNNER
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OVERVIEW:
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This module abstracts the operating system and language toolchain.
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It allows the Agent to call `run_tests()` without knowing if it's running
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on Arch Linux (pacman), MacOS (brew), or Windows (winget).
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It also handles the "Sandbox V2" logic using Docker or Podman.
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*/
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package toolchain
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"strings"
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"time"
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)
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// LanguageProfile defines how Sentinel interacts with a specific stack.
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type LanguageProfile struct {
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Name string
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TestCmd []string
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BuildCmd []string
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LintCmd []string
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InstallCmd []string
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LockFile string
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PackageFile string
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}
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// ToolchainManager handles detection and execution.
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type ToolchainManager struct {
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Root string
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OS string // "linux", "windows", "darwin"
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UseContainer bool
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ContainerImg string
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ActiveProfile *LanguageProfile
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}
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// NewToolchain creates a manager aware of the host OS.
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func NewToolchain(root string) *ToolchainManager {
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return &ToolchainManager{
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Root: root,
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OS: runtime.GOOS,
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}
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}
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// =============================================================================
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// SECTION 1: AUTO-DETECTION LOGIC
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// =============================================================================
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// DetectLanguage scans the repo root to identify the stack.
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func (tm *ToolchainManager) DetectLanguage() (*LanguageProfile, error) {
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// Go Detection
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if _, err := os.Stat(filepath.Join(tm.Root, "go.mod")); err == nil {
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return &LanguageProfile{
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Name: "go",
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TestCmd: []string{"go", "test", "-v", "-race", "./..."},
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BuildCmd: []string{"go", "build", "./..."},
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LintCmd: []string{"golangci-lint", "run"},
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InstallCmd: []string{"go", "mod", "download"},
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LockFile: "go.sum",
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}, nil
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}
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// Node/TS Detection
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if _, err := os.Stat(filepath.Join(tm.Root, "package.json")); err == nil {
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// Detect package manager
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pm := "npm"
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testCmd := []string{"npm", "test"}
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if _, err := os.Stat(filepath.Join(tm.Root, "pnpm-lock.yaml")); err == nil {
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pm = "pnpm"
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testCmd = []string{"pnpm", "test"}
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}
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return &LanguageProfile{
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Name: "node",
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TestCmd: testCmd,
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BuildCmd: []string{pm, "run", "build"},
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LintCmd: []string{pm, "run", "lint"},
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InstallCmd: []string{pm, "install"},
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LockFile: "package-lock.json", // Simplified
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}, nil
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}
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// Rust Detection
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if _, err := os.Stat(filepath.Join(tm.Root, "Cargo.toml")); err == nil {
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return &LanguageProfile{
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Name: "rust",
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TestCmd: []string{"cargo", "test"},
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BuildCmd: []string{"cargo", "build", "--release"},
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LintCmd: []string{"cargo", "clippy", "--", "-D", "warnings"},
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InstallCmd: []string{"cargo", "fetch"},
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LockFile: "Cargo.lock",
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}, nil
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}
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// Nix Flake Fallback (NixOS / Custom Environments)
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if _, err := os.Stat(filepath.Join(tm.Root, "flake.nix")); err == nil {
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return &LanguageProfile{
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Name: "nix",
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TestCmd: []string{"nix", "develop", "-c", "check"},
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BuildCmd: []string{"nix", "build"},
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LintCmd: []string{"nix", "develop", "-c", "lint"},
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InstallCmd: []string{"nix", "develop"}, // or direnv
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}, nil
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}
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// Godot / GDScript Detection
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if _, err := os.Stat(filepath.Join(tm.Root, "project.godot")); err == nil {
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return &LanguageProfile{
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Name: "godot",
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TestCmd: []string{"godot", "--headless", "--path", tm.Root, "--script", "test_runner.gd"},
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BuildCmd: []string{"godot", "--headless", "--path", tm.Root, "--export-debug", "Linux/X11"},
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LintCmd: []string{"gdformat", "--check", tm.Root},
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InstallCmd: []string{}, // Godot is self-contained
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LockFile: "", // Godot doesn't use lockfiles
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PackageFile: "project.godot",
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}, nil
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}
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return nil, fmt.Errorf("language auto-detection failed. Please configure sentinel.toml manually")
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}
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// =============================================================================
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// SECTION 2: CROSS-PLATFORM EXECUTOR
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// =============================================================================
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// ExecuteCommand runs a command securely, handling OS differences.
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// On Windows, it wraps via cmd.exe.
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// On Linux/Mac, it executes directly or via sh.
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func (tm *ToolchainManager) ExecuteCommand(ctx context.Context, cmdParts []string) (string, error) {
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if len(cmdParts) == 0 {
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return "", fmt.Errorf("empty command")
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}
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var cmd *exec.Cmd
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if tm.UseContainer {
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return tm.executeInContainer(ctx, cmdParts)
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}
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// Host Execution Logic
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if tm.OS == "windows" {
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// Windows: We must be careful with argument escaping
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// For complex commands, it's safer to run via PowerShell or CMD
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args := append([]string{"/C"}, cmdParts...)
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cmd = exec.CommandContext(ctx, "cmd.exe", args...)
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} else {
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// Linux / Darwin
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cmd = exec.CommandContext(ctx, cmdParts[0], cmdParts[1:]...)
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}
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cmd.Dir = tm.Root
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// Sanitized Environment
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cmd.Env = tm.sanitizeEnv(os.Environ())
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var stdout, stderr bytes.Buffer
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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output := stdout.String() + "\n" + stderr.String()
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if err != nil {
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return output, fmt.Errorf("execution failed: %v", err)
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}
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return output, nil
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}
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// executeInContainer runs the tool inside Docker/Podman for isolation.
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func (tm *ToolchainManager) executeInContainer(ctx context.Context, cmdParts []string) (string, error) {
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// 1. Construct Docker run command
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// -v $(pwd):/app -> Mount source code
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// -w /app -> Set working dir
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// --rm -> Cleanup container after run
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// --network none -> Sandbox network (unless installing deps)
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dockerArgs := []string{
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"run", "--rm",
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"-v", fmt.Sprintf("%s:/app", tm.Root),
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"-w", "/app",
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}
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// Pass through important env vars (but scrub secrets)
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if apiKey := os.Getenv("OPENAI_API_KEY"); apiKey != "" {
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// In a real scenario, we might NOT want to pass this unless needed for the tool.
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// Sentinel strictly controls secret injection.
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}
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dockerArgs = append(dockerArgs, tm.ContainerImg)
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dockerArgs = append(dockerArgs, cmdParts...)
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cmd := exec.CommandContext(ctx, "docker", dockerArgs...)
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var out bytes.Buffer
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cmd.Stdout = &out
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cmd.Stderr = &out
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err := cmd.Run()
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return out.String(), err
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}
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// sanitizeEnv removes dangerous environment variables before passing to child process.
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func (tm *ToolchainManager) sanitizeEnv(currentEnv []string) []string {
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safeEnv := []string{}
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denylist := []string{"AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY", "GH_TOKEN", "GITHUB_TOKEN"}
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for _, e := range currentEnv {
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isBlocked := false
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for _, denied := range denylist {
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if strings.HasPrefix(e, denied+"=") {
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isBlocked = true
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break
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}
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}
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if !isBlocked {
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safeEnv = append(safeEnv, e)
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}
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}
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// Force CI=true for Sentinel runs to prevent interactive prompts
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safeEnv = append(safeEnv, "CI=true")
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safeEnv = append(safeEnv, "SENTINEL_ACTIVE=true")
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return safeEnv
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}
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// =============================================================================
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// SECTION 3: NIXOS / FLAKE SUPPORT
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// =============================================================================
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// NixFlakeTemplate provides a reproducible environment definition.
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const NixFlakeTemplate = `{
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description = "Sentinel Reproducible Environment";
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inputs = {
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nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
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flake-utils.url = "github:numtide/flake-utils";
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};
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outputs = { self, nixpkgs, flake-utils }:
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flake-utils.lib.eachDefaultSystem (system:
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let
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pkgs = nixpkgs.legacyPackages.${system};
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in
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{
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devShells.default = pkgs.mkShell {
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buildInputs = with pkgs; [
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go
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nodejs
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python3
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# Sentinel Binary (Self-Reference in real scenario)
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];
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shellHook = ''
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echo "Sentinel Guarded Shell Active"
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export SENTINEL_MODE=nix
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'';
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};
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}
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);
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}
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`
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// GenerateFlake writes the flake.nix if requested.
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func (tm *ToolchainManager) GenerateFlake() error {
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path := filepath.Join(tm.Root, "flake.nix")
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if _, err := os.Stat(path); err == nil {
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return nil // Already exists
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}
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return ioutil.WriteFile(path, []byte(NixFlakeTemplate), 0644)
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} |