avantgardnerio commented on code in PR #3580:
URL: https://github.com/apache/arrow-datafusion/pull/3580#discussion_r976938276
##########
datafusion/proto/build.rs:
##########
@@ -72,8 +73,24 @@ fn build() -> Result<(), String> {
#[cfg(not(feature = "json"))]
fn build() -> Result<(), String> {
+ use std::io::Write;
+
+ let out = std::path::PathBuf::from(
+ std::env::var("OUT_DIR").expect("Cannot find OUT_DIR environment
variable"),
+ );
+
prost_build::Config::new()
- .out_dir("src/generated")
.compile_protos(&["proto/datafusion.proto"], &["proto"])
- .map_err(|e| format!("protobuf compilation failed: {}", e))
+ .map_err(|e| format!("protobuf compilation failed: {}", e))?;
+
+ let proto = std::fs::read_to_string(out.join("datafusion.rs")).unwrap();
+ let mut file = std::fs::OpenOptions::new()
+ .write(true)
+ .truncate(true)
+ .create(true)
+ .open("src/generated/datafusion.rs")
+ .unwrap();
+ file.write(proto.as_str().as_ref()).unwrap();
Review Comment:
Generate code the same way no matter which feature is selected.
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