1 files changed, 59 insertions, 0 deletions
diff --git a/builder/builder2v1/build_package.go b/builder/builder2v1/build_package.go
new file mode 100644
index 0000000..d2f0ec9
--- /dev/null
+++ b/builder/builder2v1/build_package.go
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+package builder2v1
+
+import (
+	"fmt"
+
+	"github.com/spdx/tools-golang/spdx"
+	"github.com/spdx/tools-golang/utils"
+)
+
+// BuildPackageSection2_1 creates an SPDX Package (version 2.1), returning
+// that package or error if any is encountered. Arguments:
+//   - packageName: name of package / directory
+//   - dirRoot: path to directory to be analyzed
+//   - pathsIgnore: slice of strings for filepaths to ignore
+func BuildPackageSection2_1(packageName string, dirRoot string, pathsIgnore []string) (*spdx.Package2_1, error) {
+	// build the file section first, so we'll have it available
+	// for calculating the package verification code
+	filepaths, err := utils.GetAllFilePaths(dirRoot, pathsIgnore)
+	if err != nil {
+		return nil, err
+	}
+
+	files := []*spdx.File2_1{}
+	fileNumber := 0
+	for _, fp := range filepaths {
+		newFile, err := BuildFileSection2_1(fp, dirRoot, fileNumber)
+		if err != nil {
+			return nil, err
+		}
+		files = append(files, newFile)
+		fileNumber++
+	}
+
+	// get the verification code
+	code, err := utils.GetVerificationCode2_1(files, "")
+	if err != nil {
+		return nil, err
+	}
+
+	// now build the package section
+	pkg := &spdx.Package2_1{
+		IsUnpackaged:                false,
+		PackageName:                 packageName,
+		PackageSPDXIdentifier:       fmt.Sprintf("SPDXRef-Package-%s", packageName),
+		PackageDownloadLocation:     "NOASSERTION",
+		FilesAnalyzed:               true,
+		IsFilesAnalyzedTagPresent:   true,
+		PackageVerificationCode:     code,
+		PackageLicenseConcluded:     "NOASSERTION",
+		PackageLicenseInfoFromFiles: []string{},
+		PackageLicenseDeclared:      "NOASSERTION",
+		PackageCopyrightText:        "NOASSERTION",
+		Files:                       files,
+	}
+
+	return pkg, nil
+}