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外部packageへのimportを含むprotoファイルをまとめてprotocでgo_outするシェルスクリプト

Last updated at Posted at 2017-06-03
src
  |
  |--api/
  |    |--foo.proto
  |    |
  |--bff/
  |    |--bar.proto
  |    |--empty.proto
  |    |

syntax = "proto3";

package api;

message Foo {
  uint32 id = 1;
}

syntax = "proto3";

package bff;

import "api/foo.proto";

message Bar {
  api.Foo foo = 1;
}

みたいな感じだとして、普通に

protoc --go_out=plugins=grpc:. bff/*.proto

とかしてもダメなので

#!/bin/bash
for file in `\find bff -name '*.proto'`; do
    temp="$temp $file"
done
protoc --go_out=plugins=grpc:. $temp

的な感じで。シェルスクリプト難しい。ちなみにgolangの場合、protocに食わせるprotoファイルはスペース区切りで一度に全指定しないとセルフインポートするコードが生成されて循環インポートでgoのbuildが死ぬ。あとprotoファイルのpackage名にハイフンがあると多分protocが死ぬ。

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