optional feature for source

app/Cargo.toml

@@ -14,7 +14,7 @@ name = "db_bench"
 harness = false
 
 [dependencies]
-chgk_ledb_lib = {path = "../lib", features = ["sync"]}
+chgk_ledb_lib = {path = "../lib", features = ["sync", "source"]}
 serde_json="1.0"
 zip="0.6"
 rand="0.8"

lib/Cargo.toml

@@ -13,13 +13,14 @@ description = "Библиотека для доступа к файлу базы
 default = ["async"]
 sync = ["zstd", "memmap"]
 async = ["futures", "futures-core", "futures-util", "fmmap", "tokio", "async-compression", "async-stream"]
+source = ["zip"]
 
 [dependencies]
 serde="1.0"
 serde_derive="1.0"
 serde_json="1.0"
 bincode = "^2.0.0-rc.2"
-zip="0.6"
+zip= {version = "0.6", optional = true}
 fmmap = { version = "0.3", features = ["tokio-async"] , optional = true}
 tokio = { version = "1", features = ["fs","io-util","rt", "macros"] , optional = true}
 futures-core  = {version = "0.3", optional = true}

lib/src/lib.rs

@@ -3,4 +3,5 @@ pub mod async_db;
 #[cfg(feature = "sync")]
 pub mod db;
 pub mod questions;
+#[cfg(feature = "source")]
 pub mod source;

lib/src/questions.rs

@@ -1,7 +1,5 @@
 use serde_derive::{Deserialize, Serialize};
 
-use crate::source::{SourceQuestion, SourceQuestionsBatch};
-
 macro_rules! make {
     ($Target:ident; by {$($field:ident),+}; from $src:expr) => {$Target {$(
         $field: $src.$field
@@ -80,6 +78,12 @@ pub struct Question {
     pub batch_info: BatchInfo,
 }
 
+#[cfg(feature = "source")]
+pub mod convert {
+    use crate::source::{SourceQuestion, SourceQuestionsBatch};
+
+    use super::{BatchInfo, Question};
+
     impl From<SourceQuestion> for Question {
         fn from(src: SourceQuestion) -> Self {
             make! {Self; with defaults and by {
@@ -134,3 +138,7 @@ where
             Box::new(iter)
         }
     }
+}
+
+#[cfg(feature = "source")]
+pub use convert::QuestionsConverter;