Feature/global conf hash str

conan/internal/model/conf.py

@@ -1,4 +1,5 @@
 import copy
+import hashlib
 import numbers
 import platform
 import re
@@ -756,7 +757,8 @@ def load_global_conf(home_folder):
         content = template.render({"platform": platform, "os": os, "distro": distro,
                                    "conan_version": conan_version,
                                    "conan_home_folder": home_folder,
-                                   "detect_api": detect_api})
+                                   "detect_api": detect_api,
+                                   "hashlib": hashlib})
         new_config.loads(content)
     else:  # creation of a blank global.conf file for user convenience
         default_global_conf = textwrap.dedent("""\

test/integration/cache/storage_path_test.py

@@ -1,4 +1,6 @@
 import os
+import textwrap
+from hashlib import sha256
 
 from conan.test.utils.test_files import temp_folder
 from conan.test.utils.tools import TestClient, GenConanfile
@@ -22,3 +24,18 @@ def test_wrong_home_error():
     client.save_home({"global.conf": "core.cache:storage_path=//"})
     client.run("list *")
     assert "Couldn't initialize storage in" in client.out
+
+
+def test_short_storage_path():
+    c = TestClient()
+    global_conf = textwrap.dedent("""\
+        {% set h = hashlib.new("sha256", conan_home_folder.encode(),
+                               usedforsecurity=False).hexdigest() %}
+        core.cache:storage_path=C:/conan_{{h[:6]}}
+        """)
+    c.save_home({"global.conf": global_conf})
+    c.run("config show *")
+    myhash = sha256()
+    myhash.update(c.cache_folder.replace("\\", "/").encode())
+    myhash = myhash.hexdigest()[:6]
+    assert f"core.cache:storage_path: C:/conan_{myhash}" in c.out