Fix(recursive): use packages.Load support for recursive search instea…

…d of manual

- Fix(Parsepackages): Ignore packages with no Go files

pkg/config/config.go

@@ -6,7 +6,6 @@ import (
 	"errors"
 	"fmt"
 	"os"
-	"path/filepath"
 	"reflect"
 	"regexp"
 	"strings"
@@ -542,128 +541,26 @@ func shouldExcludeModule(ctx context.Context, root *pathlib.Path, goModPath *pat
 	return false, nil
 }
 
-func (c *Config) subPackages(
-	ctx context.Context,
-	pkgPath string,
-	pkgConfig *Config,
-	currentDepth int,
-) ([]string, error) {
-	log := zerolog.Ctx(ctx)
-
+func (c *Config) subPackages(pkgPath string) ([]string, error) {
 	pkgs, err := packages.Load(&packages.Config{
 		Mode: packages.NeedName | packages.NeedFiles,
-	}, pkgPath)
+	}, pkgPath+"/...")
 	if err != nil {
 		return nil, fmt.Errorf("failed to load packages: %w", err)
 	}
-	pkg := pkgs[0]
-
-	if currentDepth == 0 && len(pkg.GoFiles) == 0 {
-		log.Error().
-			Err(ErrNoGoFilesFoundInRoot).
-			Str("documentation", logging.DocsURL("/notes/#error-no-go-files-found-in-root-search-path")).
-			Msg("package contains no go files")
-		return nil, ErrNoGoFilesFoundInRoot
-	}
-	representativeFile := pathlib.NewPath(pkg.GoFiles[0])
-	searchRoot := representativeFile.Parent()
-	packageRootName := pathlib.NewPath(pkg.PkgPath)
-	packageRootPath := searchRoot
-	subPackages := []string{}
-
-	walker, err := pathlib.NewWalk(
-		searchRoot,
-		pathlib.WalkAlgorithm(pathlib.AlgorithmPreOrderDepthFirst),
-		pathlib.WalkFollowSymlinks(false),
-		pathlib.WalkVisitDirs(false),
-		pathlib.WalkVisitFiles(true),
-	)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create filesystem walker: %w", err)
-	}
-
-	visitedDirs := map[string]any{}
-	subdirectoriesWithGoFiles := []*pathlib.Path{}
-
-	// We consider the searchRoot to already be visited because
-	// we know it's already in the configuration.
-	visitedDirs[searchRoot.String()] = nil
-
-	// Walk the filesystem path, starting at the root of the package we've
-	// been given. Note that this will always work because Go downloads
-	// the package when we call `packages.Load`
-	walkErr := walker.Walk(func(path *pathlib.Path, info os.FileInfo, err error) error {
-		pathLog := log.With().Stringer("path", path).Logger()
-		if err != nil {
-			return err
-		}
-		if path.Name() == "go.mod" {
-			pathLog.Debug().Msg("path contains go.mod file")
-			// Check if our current depth is 0. We do this to skip sub-modules, but not
-			// the root module.
-			shouldExclude, err := shouldExcludeModule(ctx, searchRoot, path)
-			if err != nil {
-				return err
-			}
-
-			if shouldExclude {
-				return pathlib.ErrWalkSkipSubtree
-			}
-		}
-
-		_, haveVisitedDir := visitedDirs[path.Parent().String()]
-		if !haveVisitedDir && strings.HasSuffix(path.Name(), ".go") {
-
-			if !c.IncludeAutoGenerated {
-				autoGenerated, err := isAutoGenerated(path)
-				if err != nil {
-					pathLog.Err(err).Msg("failed to determine if file is auto-generated")
-					return err
-				}
-				if autoGenerated {
-					pathLog.Debug().Msg("skipping file as auto-generated")
-					return nil
-				}
-			}
 
-			pathLog.Debug().Msg("subdirectory has a .go file")
-			goModPath := path.Parent().Join("go.mod")
-			goModExists, err := goModPath.Exists()
-			if err != nil {
-				pathLog.Err(err).Msg("failed to determine if go.mod exists")
-				return err
-			}
-			if goModExists {
-				shouldExclude, err := shouldExcludeModule(ctx, searchRoot, goModPath)
-				if err != nil {
-					return err
-				}
-				if shouldExclude {
-					return pathlib.ErrWalkSkipSubtree
-				}
+	convertPkgPath := func(pkgs []*packages.Package) []string {
+		paths := make([]string, 0, len(pkgs))
+		for _, pkg := range pkgs {
+			if len(pkg.GoFiles) == 0 {
+				continue
 			}
-			subdirectoriesWithGoFiles = append(subdirectoriesWithGoFiles, path.Parent())
-			visitedDirs[path.Parent().String()] = nil
-		}
-		return nil
-	})
-	if walkErr != nil {
-		return nil, fmt.Errorf("error occurred during filesystem walk: %w", walkErr)
-	}
-
-	// Parse the subdirectories we found into their respective fully qualified
-	// package paths
-	for _, d := range subdirectoriesWithGoFiles {
-		relativeFilesystemPath, err := d.RelativeTo(packageRootPath)
-		if err != nil {
-			log.Err(err).Stringer("root", packageRootPath).Stringer("subRoot", d).Msg("failed to make subroot relative to root")
-			return nil, fmt.Errorf("failed to make subroot relative to root: %w", err)
+			paths = append(paths, pkg.PkgPath)
 		}
-		absolutePackageName := packageRootName.Join(relativeFilesystemPath.Parts()...)
-		subPackages = append(subPackages, filepath.ToSlash(absolutePackageName.String()))
+		return paths
 	}
 
-	return subPackages, nil
+	return convertPkgPath(pkgs), nil
 }
 
 // discoverRecursivePackages parses the provided config for packages marked as
@@ -697,7 +594,7 @@ func (c *Config) discoverRecursivePackages(ctx context.Context) error {
 		pkgLog := log.With().Str("package-path", pkgPath).Logger()
 		pkgCtx := pkgLog.WithContext(ctx)
 		pkgLog.Debug().Msg("discovering sub-packages")
-		subPkgs, err := c.subPackages(pkgCtx, pkgPath, conf, 0)
+		subPkgs, err := c.subPackages(pkgPath)
 		if err != nil {
 			return fmt.Errorf("failed to get subpackages: %w", err)
 		}

pkg/config/config_test.go

@@ -1012,7 +1012,7 @@ packages:
     config:
       recursive: True
       all: True`,
-			wantErr: ErrNoGoFilesFoundInRoot,
+			wantErr: nil,
 		},
 		{
 			name: "test with no subpackages present",

pkg/parse.go

@@ -93,6 +93,9 @@ func (p *Parser) ParsePackages(ctx context.Context, packageNames []string) error
 		return err
 	}
 	for _, pkg := range packages {
+		if len(pkg.GoFiles) == 0 {
+			continue
+		}
 		for _, err := range pkg.Errors {
 			log.Err(err).Msg("encountered error when loading package")
 		}