alamb commented on code in PR #4892:
URL: https://github.com/apache/arrow-rs/pull/4892#discussion_r1346404836


##########
parquet/CONTRIBUTING.md:
##########
@@ -65,7 +65,7 @@ To compile and view in the browser, run `cargo doc --no-deps 
--open`.
 To generate the parquet format (thrift definitions) code run from the 
repository root run
 
 ```
-$ docker run -v $(pwd):/thrift/src -it archlinux pacman -Sy --noconfirm thrift 
 && wget 
https://raw.githubusercontent.com/apache/parquet-format/apache-parquet-format-2.9.0/src/main/thrift/parquet.thrift
 -O /tmp/parquet.thrift && thrift --gen rs /tmp/parquet.thrift && sed -i '/use 
thrift::server::TProcessor;/d' parquet.rs && mv parquet.rs parquet/src/format.rs
+$ docker run -v $(pwd):/thrift/src -it archlinux pacman -Sy --noconfirm thrift 
 && wget 
https://raw.githubusercontent.com/apache/parquet-format/master/src/main/thrift/parquet.thrift
 -O /tmp/parquet.thrift && thrift --gen rs /tmp/parquet.thrift && sed -i '/use 
thrift::server::TProcessor;/d' parquet.rs && sed -i 's/impl TSerializable 
for/impl crate::thrift::TSerializable for/g' parquet.rs && sed -i 's/fn 
write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol)/fn 
write_to_out_protocol<T: TOutputProtocol>(\&self, o_prot: \&mut T)/g' 
parquet.rs && sed -i 's/fn read_from_in_protocol(i_prot: &mut dyn 
TInputProtocol)/fn read_from_in_protocol<T: TInputProtocol>(i_prot: \&mut T)/g' 
parquet.rs && mv parquet.rs parquet/src/format.rs

Review Comment:
   Somewhere we should encode the exact version of the thrift file that the 
currently checked in `metadata` came from, I think. By referring to master it 
will "depend" on when the script got run



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