Sync new derived data config to fbcode

Summary:
```
 configerator-thrift-updater scm/mononoke/repos/repos.thrift
```
Then updated the relevant structs, implemented `is_readable` on the config.

Reviewed By: YousefSalama

Differential Revision: D92823961

fbshipit-source-id: 66ab8aa8f430d2706acec7429a8cd634fd231750

Author: Liu Yang

configerator/structs/scm/mononoke/repos/repos.thrift

@@ -1,4 +1,4 @@
-// @generated SignedSource<<1b70216f1eec2c5ee90d2654ff35fec7>>
+// @generated SignedSource<<38ae52f7c1accd1259654be6a4722844>>
 // DO NOT EDIT THIS FILE MANUALLY!
 // This file is a mechanical copy of the version in the configerator repo. To
 // modify it, edit the copy in the configerator repo instead and copy it over by
@@ -13,6 +13,10 @@
  */
 
 include "thrift/annotation/rust.thrift"
+include "thrift/annotation/thrift.thrift"
+
+@thrift.AllowLegacyMissingUris
+package;
 
 namespace py configerator.mononoke.repos
 namespace py3 mononoke.repos
@@ -554,6 +558,11 @@ struct RawDerivedDataConfig {
   9: optional string derivation_queue_scuba_table;
   10: optional RawRemoteDerivationConfig remote_derivation_config;
   11: optional RawDerivedDataBlockedDerivation blocked_derivation;
+  // There are cases where a type is selectively backfilled for a certain repo
+  // but not enabled for general derivation for new incoming commits,
+  // e.g. inferred_copy_from in fbsource (https://fburl.com/workplace/pic8groe)
+  // This option is meant to capture that.
+  12: optional set<string> extra_types_available_for_read;
 }
 
 @rust.Exhaustive

eden/mononoke/metaconfig/parser/src/config.rs

@@ -1355,6 +1355,7 @@ mod test {
                     blocked_derivation: hashmap! {
                         THREES_CSID => Some(hashset! { DerivableType::Unodes, }),
                     },
+                    extra_types_available_for_read: hashset! {},
                 },
                 enforce_lfs_acl_check: false,
                 repo_client_use_warm_bookmarks_cache: true,

eden/mononoke/metaconfig/parser/src/convert/repo.rs

@@ -643,6 +643,12 @@ impl Convert for RawDerivedDataConfig {
                 .map(|blocked_derivation| blocked_derivation.convert())
                 .transpose()?
                 .unwrap_or_default(),
+            extra_types_available_for_read: self
+                .extra_types_available_for_read
+                .unwrap_or_default()
+                .into_iter()
+                .map(|s| DerivableType::from_name(&s))
+                .collect::<Result<_, _>>()?,
         })
     }
 }

eden/mononoke/metaconfig/types/src/lib.rs

@@ -386,6 +386,9 @@ pub struct DerivedDataConfig {
 
     /// Commits with blocked derivation
     pub blocked_derivation: HashMap<ChangesetId, Option<HashSet<DerivableType>>>,
+
+    /// Extra derived data types that are available for read but not necessarily enabled for derivation.
+    pub extra_types_available_for_read: HashSet<DerivableType>,
 }
 
 impl DerivedDataConfig {
@@ -436,6 +439,14 @@ impl DerivedDataConfig {
                     .is_none_or(|types| types.contains(&derivable_type))
             })
     }
+
+    /// Returns whether the named derived data type is readable.
+    /// A type is readable if it's either in the active config's types or in extra_types_available_for_read.
+    pub fn is_readable(&self, derivable_type: DerivableType) -> bool {
+        self.extra_types_available_for_read
+            .contains(&derivable_type)
+            || self.is_enabled(derivable_type)
+    }
 }
 
 /// Config for derived data types