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Non-ASCII link hook output is corrupted by dart build cli on Windows #3593
Description
Environment
- Windows x64, Simplified Chinese
- Dart SDK 3.13.1
Problem
Running:
dart build cli --target .\example\call.dartdisplays corrupted Chinese output from the link hook:
Running link hooks... 淇℃伅: 鐢ㄦ彁渚涚殑妯″紡鏃犳硶鎵惧埌鏂囦欢銆?After the failure, the Dart CLI prints a command for reproducing the link hook invocation. It has the following form:
dart.exe `
--packages=<package-config> `
<hook.dill> `
--config=<hook-input.json> `
<recorded-uses.json>Running that command directly displays the same output correctly:
Running `where.exe vswhere.exe`.
信息: 用提供的模式无法找到文件。The link hook therefore produces correct Chinese output when invoked directly, but the output is corrupted when invoked and displayed through dart build cli
Activity
dzylikecode commentedon Aug 28, 2026
My guess is that the hook correctly decodes the original GBK output and writes it to stdout as UTF-8.
dart build clithen captures those UTF-8 bytes but decodes them again using the Windows system encoding (GBK), resulting in mojibake.dcharkes commentedon Aug 28, 2026
Hi @dzylikecode Thanks for the report! 20 years of software engineering, and I'm still fighting mojibake! 😆
The implementation for this is in
I don't immediately know where the error might be in those two locations.
Would you be able to try to build the Dart SDK locally find a fix and supply a PR?