Add svn source credential support

conda_build/metadata.py

@@ -470,6 +470,8 @@ def parse(data, config, path=None):
         "svn_url": str,
         "svn_rev": None,
         "svn_ignore_externals": None,
+        "svn_username": None,
+        "svn_password": None,
         "folder": None,
         "no_hoist": None,
         "patches": list,

conda_build/source.py

@@ -565,10 +565,20 @@ def parse_bool(s):
         os.makedirs(svn_cache)
     svn_dn = svn_url.split(":", 1)[-1].replace("/", "_").replace(":", "_")
     cache_repo = join(svn_cache, svn_dn)
+    extra_args = []
     if svn_ignore_externals:
-        extra_args = ["--ignore-externals"]
-    else:
-        extra_args = []
+        extra_args.append("--ignore-externals")
+    if "svn_username" in source_dict and "svn_password" in source_dict:
+        extra_args.extend(
+            [
+                "--non-interactive",
+                "--no-auth-cache",
+                "--username",
+                source_dict.get("svn_username"),
+                "--password",
+                source_dict.get("svn_password"),
+            ]
+        )
     if isdir(cache_repo):
         check_call_env(
             ["svn", "up", "-r", svn_revision] + extra_args,

docs/source/resources/define-metadata.rst

@@ -162,9 +162,22 @@ Source from svn
 
    source:
      svn_url: https://github.com/ilanschnell/bsdiff
-     svn_rev: 1.1.4
+     svn_rev: 1.1.4 # (defaults to head)
      svn_ignore_externals: True # (defaults to False)
+     svn_username: username  # Optional, if set must also have svn_password
+     svn_password: password  # Optional, if set must also have svn_username
 
+To access a restricted SVN repository, specify both ``svn_username`` and ``svn_password``.
+
+.. caution::
+   Storing credentials in plaintext carries risks. Alternatively, consider
+   using environment variables:
+
+   .. code-block:: yaml
+
+      source:
+        svn_username: {{ environ["SVN_USERNAME"] }}
+        svn_password: {{ environ["SVN_PASSWORD"] }}
 
 Source from a local path
 -------------------------

news/4692-add-svn-source-credential-support

@@ -0,0 +1,19 @@
+### Enhancements
+
+* Add support for svn source credential (`svn_username` and `svn_password`). (#4692)
+
+### Bug fixes
+
+* <news item>
+
+### Deprecations
+
+* <news item>
+
+### Docs
+
+* <news item>
+
+### Other
+
+* <news item>