regen.sh

#!/usr/bin/env bash

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REVISION=5b564f3c47679526cf72e54f207013f28f53acc4

SOURCE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")" && pwd)"

COMMENT='//! See [`crate::file`] for easier to use APIs.'

# Note: add argument --platform=linux/amd64 to run on mac
docker run  -v $SOURCE_DIR:/thrift -it archlinux /bin/bash -c "\
  pacman -Sy --noconfirm wget thrift && \
  wget https://raw.githubusercontent.com/apache/parquet-format/$REVISION/src/main/thrift/parquet.thrift -O /tmp/parquet.thrift && \
  thrift --gen rs /tmp/parquet.thrift && \
  echo 'Removing TProcessor' && \
  sed -i '/use thrift::server::TProcessor;/d' parquet.rs && \
  echo 'Replacing TSerializable' && \
  sed -i 's/impl TSerializable for/impl crate::thrift::TSerializable for/g' parquet.rs && \
  echo 'Rewriting write_to_out_protocol' && \
  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 && \
  echo 'Rewriting read_from_in_protocol' && \
  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 && \
  echo 'Rewriting return value expectations' && \
  sed -i 's/Ok(ret.expect(\"return value should have been constructed\"))/ret.ok_or_else(|| thrift::Error::Protocol(ProtocolError::new(ProtocolErrorKind::InvalidData, \"return value should have been constructed\")))/g' parquet.rs && \
  sed -i '1i${COMMENT}' parquet.rs && \
  mv parquet.rs /thrift/src/format.rs
  "