From 48df20618f09c6f07d19037176ce9b88d769fc94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Klaim=20=28Jo=C3=ABl=20Lamotte=29?=
 <142265+Klaim@users.noreply.github.com>
Date: Tue, 12 Nov 2024 10:27:10 +0100
Subject: [PATCH] Fix: json parsing error due to wrong encoding of Python
 output (#3584)

---
 .github/workflows/static_build.yml | 19 +++++++++++++++++++
 libmamba/src/core/prefix_data.cpp  |  7 ++++++-
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/static_build.yml b/.github/workflows/static_build.yml
index 86039d1898..f839c1ca85 100644
--- a/.github/workflows/static_build.yml
+++ b/.github/workflows/static_build.yml
@@ -99,6 +99,16 @@ jobs:
             "micromamba-feedstock/build_artifacts/${{ matrix.platform }}-${{ matrix.arch }}/"micromamba-*.tar.bz2 "pkg/"
           mkdir -p "${{ github.workspace }}/artifacts"
           cp pkg/bin/micromamba "${{ github.workspace }}/artifacts"
+
+      - name: Test basic commands
+        if: ${{ ${{ matrix.arch }} != 'aarch64' && ${{ matrix.arch }} != 'ppc64le' }}
+        run: |
+          mkdir test_prefix
+          ${{ github.workspace }}/artifacts/micromamba --version
+          ${{ github.workspace }}/artifacts/micromamba --help
+          ${{ github.workspace }}/artifacts/micromamba env create -y -n testenv -r ./test_prefix "python<3.13"
+          ${{ github.workspace }}/artifacts/micromamba list -n testenv -r ./test_prefix --log-level 1
+
       - name: Archive conda-build artifact
         if: failure()
         run: tar -czf ${{ github.workspace }}/micromamba-conda-build-failed-${{ matrix.platform }}-${{ matrix.arch }}.tar.gz $MAMBA_ROOT_PREFIX/envs/mambabuild/conda-bld/micromamba_*
@@ -181,6 +191,15 @@ jobs:
       - name: Archive-build artifact
         if: failure()
         run: tar -czf ${{ github.workspace }}/micromamba-build-failed-win-64.tar.gz ${{ github.workspace }}/build/
+
+      - name: Test basic commands
+        run: |
+          mkdir test_prefix
+          ${{ github.workspace }}/build/micromamba/micromamba.exe --version
+          ${{ github.workspace }}/build/micromamba/micromamba.exe --help
+          ${{ github.workspace }}/build/micromamba/micromamba.exe env create -y -n testenv -r ./test_prefix "python<3.13"
+          ${{ github.workspace }}/build/micromamba/micromamba.exe list -n testenv -r ./test_prefix  --log-level 1
+
       - name: Upload build artifacts
         uses: actions/upload-artifact@v4
         if: failure()
diff --git a/libmamba/src/core/prefix_data.cpp b/libmamba/src/core/prefix_data.cpp
index 68861b4a42..807a03d028 100644
--- a/libmamba/src/core/prefix_data.cpp
+++ b/libmamba/src/core/prefix_data.cpp
@@ -218,9 +218,14 @@ namespace mamba
                                                       "pip",
                                                       "inspect",
                                                       "--local" };
+
+        const std::vector<std::pair<std::string, std::string>> env{ { "PYTHONIOENCODING", "utf-8" } };
+        reproc::options run_options;
+        run_options.env.extra = reproc::env{ env };
+
         auto [status, ec] = reproc::run(
             args,
-            reproc::options{},
+            run_options,
             reproc::sink::string(out),
             reproc::sink::string(err)
         );