diff --git a/swh/indexer/data/nuget.csv b/swh/indexer/data/nuget.csv
new file mode 100644
--- /dev/null
+++ b/swh/indexer/data/nuget.csv
@@ -0,0 +1,68 @@
+Property,NuGet
+codeRepository,repository.url
+programmingLanguage,
+runtimePlatform,
+targetProduct,
+applicationCategory,
+applicationSubCategory,
+downloadUrl,
+fileSize,
+installUrl,
+memoryRequirements,
+operatingSystem,
+permissions,
+processorRequirements,
+releaseNotes,
+softwareHelp,
+softwareRequirements,
+softwareVersion,
+storageRequirements,
+supportingData,
+author,authors
+citation,
+contributor,
+copyrightHolder,
+copyrightYear,
+dateCreated,
+dateModified,
+datePublished,
+editor,
+encoding,
+fileFormat,
+funder,
+keywords,
+license,license
+producer,
+provider,
+publisher,
+sponsor,
+version,version
+isAccessibleForFree,
+isPartOf,
+hasPart,
+position,
+description,description
+identifier,
+name,name
+sameAs,
+url,projectUrl
+relatedLink,
+givenName,
+familyName,
+email,
+affiliation,
+identifier,id
+name,
+address,
+type,
+id,
+softwareSuggestions,
+maintainer,
+contIntegration,
+buildInstructions,
+developmentStatus,
+embargoDate,
+funding,
+issueTracker,
+referencePublication,
+readme,readme
diff --git a/swh/indexer/metadata_dictionary/__init__.py b/swh/indexer/metadata_dictionary/__init__.py
--- a/swh/indexer/metadata_dictionary/__init__.py
+++ b/swh/indexer/metadata_dictionary/__init__.py
@@ -8,7 +8,7 @@
import click
-from . import cff, codemeta, composer, dart, github, maven, npm, python, ruby
+from . import cff, codemeta, composer, dart, github, maven, npm, nuget, python, ruby
from .base import BaseExtrinsicMapping, BaseIntrinsicMapping, BaseMapping
INTRINSIC_MAPPINGS: Dict[str, Type[BaseIntrinsicMapping]] = {
@@ -20,6 +20,7 @@
"PubMapping": dart.PubspecMapping,
"PythonPkginfoMapping": python.PythonPkginfoMapping,
"ComposerMapping": composer.ComposerMapping,
+ "NuGetMapping": nuget.NuGetMapping,
}
EXTRINSIC_MAPPINGS: Dict[str, Type[BaseExtrinsicMapping]] = {
diff --git a/swh/indexer/metadata_dictionary/nuget.py b/swh/indexer/metadata_dictionary/nuget.py
new file mode 100644
--- /dev/null
+++ b/swh/indexer/metadata_dictionary/nuget.py
@@ -0,0 +1,70 @@
+# Copyright (C) 2022 The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+import os.path
+from typing import Any, Dict, Optional
+
+import xmltodict
+
+from swh.indexer.codemeta import _DATA_DIR, SCHEMA_URI, _read_crosstable
+
+from .base import DictMapping, SingleFileIntrinsicMapping
+
+NUGET_TABLE_PATH = os.path.join(_DATA_DIR, "nuget.csv")
+
+with open(NUGET_TABLE_PATH) as fd:
+ (CODEMETA_TERMS, NUGET_TABLE) = _read_crosstable(fd)
+
+
+class NuGetMapping(DictMapping, SingleFileIntrinsicMapping):
+ """
+ dedicated class for Maven (pom.xml) mapping and translation
+ """
+
+ name = "nuget"
+ filename = b".nuspec"
+ mapping = NUGET_TABLE["NuGet"]
+ string_fields = [
+ "description",
+ "version",
+ "projectUrl",
+ "name",
+ "readme",
+ ]
+
+ def translate(self, content: bytes) -> Optional[Dict[str, Any]]:
+ d = xmltodict.parse(content.strip(b" \n ")).get("package").get("metadata") or {}
+
+ if not isinstance(d, dict):
+ self.log.warning("Skipping ill-formed XML content: %s", content)
+ return None
+
+ metadata = self._translate_dict(d, normalize=False)
+
+ return self.normalize_translation(metadata)
+
+ def normalize_projectUrl(self, s):
+ if isinstance(s, str):
+ return {"@id": s}
+
+ def translate_repository(self, translated_metadata, v):
+ if isinstance(v, Dict) and isinstance(v.get("@url"), str):
+ codemeta_key = self.mapping["repository.url"]
+ translated_metadata[codemeta_key] = {"@id": v.get("@url")}
+ return translated_metadata
+
+ def normalize_license(self, v):
+ if isinstance(v, Dict) and v.get("@type") == "expression":
+ license_type = v.get("#text")
+ return {"@id": "https://spdx.org/licenses/" + license_type}
+
+ def normalize_authors(self, s):
+ if isinstance(s, str):
+ author_names = [a.strip(" ") for a in s.split(",")]
+ authors = [
+ {"@type": SCHEMA_URI + "Person", SCHEMA_URI + "name": name}
+ for name in author_names
+ ]
+ return {"@list": authors}
diff --git a/swh/indexer/tests/metadata_dictionary/test_nuget.py b/swh/indexer/tests/metadata_dictionary/test_nuget.py
new file mode 100644
--- /dev/null
+++ b/swh/indexer/tests/metadata_dictionary/test_nuget.py
@@ -0,0 +1,46 @@
+# Copyright (C) 2022 The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+from swh.indexer.metadata_dictionary import MAPPINGS
+
+
+def test_compute_metadata_nuget():
+ raw_content = b"""
+ <?xml version="1.0" encoding="utf-8"?>
+ <package xmlns="http://package.example.org/">
+ <metadata>
+ <id>sample</id>
+ <version>1.2.3</version>
+ <authors>Kim Abercrombie, Franck Halmaert</authors>
+ <description>Sample exists only to show a sample .nuspec file.</description>
+ <language>en-US</language>
+ <projectUrl>http://example.org/</projectUrl>
+ <repository type="git" url="https://github.com/NuGet/NuGet.Client.git"/>
+ <license type="expression">MIT</license>
+ <dependencies>
+ <dependency id="another-package" version="3.0.0" />
+ <dependency id="yet-another-package" version="1.0.0" />
+ </dependencies>
+ </metadata>
+ <files>
+ <file src="bin\\Debug\\*.dll" target="lib" />
+ </files>
+ </package>"""
+ result = MAPPINGS["NuGetMapping"]().translate(raw_content)
+ expected = {
+ "@context": "https://doi.org/10.5063/schema/codemeta-2.0",
+ "type": "SoftwareSourceCode",
+ "author": [
+ {"type": "Person", "name": "Kim Abercrombie"},
+ {"type": "Person", "name": "Franck Halmaert"},
+ ],
+ "codeRepository": "https://github.com/NuGet/NuGet.Client.git",
+ "description": "Sample exists only to show a sample .nuspec file.",
+ "license": "https://spdx.org/licenses/MIT",
+ "url": "http://example.org/",
+ "version": "1.2.3",
+ }
+
+ assert result == expected
diff --git a/swh/indexer/tests/test_cli.py b/swh/indexer/tests/test_cli.py
--- a/swh/indexer/tests/test_cli.py
+++ b/swh/indexer/tests/test_cli.py
@@ -100,6 +100,7 @@
"github",
"maven",
"npm",
+ "nuget",
"pkg-info",
"pubspec",
"",