Debug feature (#256)

* Feature debug

* Cleanup

* CI

program/rust/Cargo.toml

@@ -13,5 +13,8 @@ solana-program = "=1.10.29"
 bytemuck = "1.11.0"
 thiserror = "1.0"
 
+[features]
+debug = []
+
 [lib]
 crate-type = ["cdylib", "lib"]

program/rust/src/lib.rs

@@ -7,7 +7,6 @@
 mod c_oracle_header;
 mod deserialize;
 mod error;
-mod log;
 mod processor;
 mod rust_oracle;
 mod time_machine_types;
@@ -16,13 +15,18 @@ mod utils;
 #[cfg(test)]
 mod tests;
 
+#[cfg(feature = "debug")]
+mod log;
+
 use crate::c_oracle_header::SUCCESSFULLY_UPDATED_AGGREGATE;
 use crate::error::OracleError;
 
+#[cfg(feature = "debug")]
 use crate::log::{
     post_log,
     pre_log,
 };
+
 use processor::process_instruction;
 
 use solana_program::entrypoint::deserialize;
@@ -51,6 +55,7 @@ use solana_program::{
 pub extern "C" fn entrypoint(input: *mut u8) -> u64 {
     let (program_id, accounts, instruction_data) = unsafe { deserialize(input) };
 
+    #[cfg(feature = "debug")]
     if let Err(error) = pre_log(&accounts, instruction_data) {
         return error.into();
     }
@@ -60,6 +65,7 @@ pub extern "C" fn entrypoint(input: *mut u8) -> u64 {
         Ok(success_status) => success_status,
     };
 
+    #[cfg(feature = "debug")]
     if let Err(error) = post_log(c_ret_val, &accounts) {
         return error.into();
     }

program/rust/src/log.rs

@@ -98,7 +98,6 @@ pub fn pre_log(accounts: &[AccountInfo], instruction_data: &[u8]) -> ProgramResu
     Ok(())
 }
 
-
 pub fn post_log(c_ret_val: u64, accounts: &[AccountInfo]) -> ProgramResult {
     if c_ret_val == SUCCESSFULLY_UPDATED_AGGREGATE {
         // We trust that the C oracle has properly checked account 1, we can only get here through