program/rust: Remove resize logic, forbid v1 prices on pythnet (#379)

* program/rust: Remove resize logic, forbid v1 prices on pythnet

* program/rust/Cargo.toml: Clarify comment on oracle features

* pyth_simulator.rs: remove price_v2_resize feature detection

* scripts/build-bpf.sh: Don't use individual tests for pythnet tests

* program/rust: Consolidate PriceAccount(V2) into a single type

* program/rust: price.rs, upd_price.rs: Update comments

* program/rust tests: mod declaration feature gates instead of #![]

* program/rust test_add_publisher.rs: Remove trivial variable

Author: drozdziak1

program/rust/Cargo.toml

@@ -35,7 +35,8 @@ test-generator = "0.3.1"
 csv = "1.1"
 lazy_static = "1.4.0"
 
-# IMPORTANT: Features in this crate must be added to the `lazy_static` macro call in `pyth_simulator.rs`.
+# IMPORTANT: Features which affect oracle business logic must be added
+# to the `lazy_static` macro call in `pyth_simulator.rs`.
 #
 # Context: We perform a cargo-build-bpf call as part of running tests
 # to obtain a BPF binary for testing. Desired features are not known
@@ -44,8 +45,7 @@ lazy_static = "1.4.0"
 [features]
 debug = []
 library = []
-pythnet = []
-price_v2_resize = []
+pythnet = [] # logic-affecting features start with this one
 
 [lib]
 crate-type = ["cdylib", "lib"]

program/rust/src/accounts.rs

@@ -43,6 +43,8 @@ mod product;
 // Some types only exist during use as a library.
 #[cfg(feature = "strum")]
 pub use price::MessageType;
+#[cfg(feature = "pythnet")]
+pub use price::PriceCumulative;
 #[cfg(test)]
 pub use product::{
     account_has_key_values,
@@ -53,9 +55,7 @@ pub use {
     permission::PermissionAccount,
     price::{
         PriceAccount,
-        PriceAccountV2,
         PriceComponent,
-        PriceCumulative,
         PriceEma,
         PriceInfo,
         PythOracleSerialize,
@@ -71,6 +71,7 @@ pub use {
 /// There is a single permissions account under `PERMISSIONS_SEED` that stores which keys
 /// are authorized to perform certain adminsitrative actions.
 pub const PERMISSIONS_SEED: &str = "permissions";
+
 #[cfg(feature = "pythnet")]
 /// The update price instruction can optionally invoke another program via CPI. The
 /// CPI will be signed with the PDA `[UPD_PRICE_WRITE_SEED, invoked_program_public_key]`