keep track_features around in PackageInfo class

docs/source/tools/mermaid.py

@@ -16,6 +16,7 @@
 import codecs
 import os
 import posixpath
+from errno import ENOENT
 from hashlib import sha1
 from subprocess import PIPE, Popen
 from tempfile import _get_default_tempdir
@@ -32,7 +33,6 @@ from sphinx.util import logging
 from sphinx.util.fileutil import copy_asset
 from sphinx.util.i18n import search_image_for_language
 from sphinx.util.osutil import ensuredir
-from errno import ENOENT
 
 logger = logging.getLogger(__name__)
 

include/mamba/core/package_info.hpp

@@ -57,6 +57,7 @@ namespace mamba
         std::size_t timestamp = 0;
         std::string md5;
         std::string sha256;
+        std::string track_features;
         std::vector<std::string> depends;
         std::vector<std::string> constrains;
     };

src/core/package_info.cpp

@@ -151,6 +151,17 @@ namespace mamba
         {
             constrains[i] = pool_dep2str(pool, q.elements[i]);
         }
+        queue_empty(&q);
+        solvable_lookup_idarray(s, SOLVABLE_TRACK_FEATURES, &q);
+        if (q.count)
+        {
+            std::vector<std::string> tmp_tf(q.count);
+            for (int i = 0; i < q.count; ++i)
+            {
+                track_features += pool_id2str(pool, q.elements[i]);
+                track_features += (i == q.count - 1) ? "" : ",";
+            }
+        }
         queue_free(&q);
     }
 
@@ -176,6 +187,7 @@ namespace mamba
         assign_or(j, "license", license, ""s);
         assign_or(j, "md5", md5, ""s);
         assign_or(j, "sha256", sha256, ""s);
+        assign_or(j, "track_features", track_features, ""s);
 
         if (j.contains("depends"))
         {
@@ -218,6 +230,7 @@ namespace mamba
         j["build_string"] = build_string;
         j["build_number"] = build_number;
         j["license"] = license;
+        j["track_features"] = track_features;
         if (!md5.empty())
         {
             j["md5"] = md5;