From fa52cf541d38ee8796bfce02711915e33a32fff5 Mon Sep 17 00:00:00 2001
From: martinRenou <martin.renou@gmail.com>
Date: Mon, 16 May 2022 13:19:11 +0200
Subject: [PATCH] Try building from the same prefix

---
 Dockerfile                                 | 10 ++++-----
 jupyterlite_xeus_python/env_build_addon.py | 24 ++++++++++++++--------
 2 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index bdad6c7..9cae4c3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,18 +29,18 @@ RUN git clone https://github.com/emscripten-core/emsdk.git && \
 
 RUN micromamba create -n xeus-python-kernel \
     --platform=emscripten-32 \
+    --root-prefix=/tmp/xeus-python-kernel \
     -c https://repo.mamba.pm/emscripten-forge \
     -c https://repo.mamba.pm/conda-forge \
     --yes \
-    python=$PYTHON_VERSION xeus-python \
-    numpy matplotlib
+    python=$PYTHON_VERSION xeus-python
 
 RUN mkdir -p xeus-python-kernel && cd xeus-python-kernel && \
     export FILE_PACKAGER=/tmp/emsdk/upstream/emscripten/tools/file_packager.py && \
     /tmp/emsdk/emsdk activate 3.1.2 3.1.2 && \
-    cp $MAMBA_ROOT_PREFIX/envs/xeus-python-kernel/bin/xpython_wasm.js . && \
-    cp $MAMBA_ROOT_PREFIX/envs/xeus-python-kernel/bin/xpython_wasm.wasm . && \
-    emboa pack python core $MAMBA_ROOT_PREFIX/envs/xeus-python-kernel --version=$PYTHON_VERSION
+    cp /tmp/xeus-python-kernel/envs/xeus-python-kernel/bin/xpython_wasm.js . && \
+    cp /tmp/xeus-python-kernel/envs/xeus-python-kernel/bin/xpython_wasm.wasm . && \
+    emboa pack python core /tmp/xeus-python-kernel/envs/xeus-python-kernel --version=$PYTHON_VERSION
 
 COPY copy_output.sh .
 
diff --git a/jupyterlite_xeus_python/env_build_addon.py b/jupyterlite_xeus_python/env_build_addon.py
index 40cc2be..e0e9d36 100644
--- a/jupyterlite_xeus_python/env_build_addon.py
+++ b/jupyterlite_xeus_python/env_build_addon.py
@@ -61,17 +61,16 @@ def pre_build(self, manager):
             return []
 
         self.cwd = TemporaryDirectory()
-        self.prefix = TemporaryDirectory()
-
-        env_name = str(uuid4())
+        self.prefix = "/tmp/xeus-python-kernel"
+        self.env_name = "xeus-python-kernel"
 
         # Create emscripten env with the given packages
         check_output([
             "micromamba",
             "create",
             "--yes",
-            "--root-prefix", self.prefix.name,
-            "--name", env_name,
+            "--root-prefix", self.prefix,
+            "--name", self.env_name,
             "--platform=emscripten-32",
             "-c", "https://repo.mamba.pm/emscripten-forge",
             "-c", "https://repo.mamba.pm/conda-forge",
@@ -83,7 +82,7 @@ def pre_build(self, manager):
         # Pack the environment
         check_output([
             "emboa", "pack", "python", "core",
-            str(Path(self.prefix.name) / "envs" / env_name),
+            str(Path(self.prefix) / "envs" / self.env_name),
             f"--version={PYTHON_VERSION}"
         ], cwd=self.cwd.name)
 
@@ -102,12 +101,19 @@ def pre_build(self, manager):
         for file in ["python_data.js", "python_data.data"]:
             yield dict(
                 name=f"copy:{file}",
-                actions=[(self.copy_one, [Path(self.cwd.name) / file, dest / file])],
+                actions=[(self.copy_one, [
+                    Path(self.cwd.name) / file,
+                    dest / file])
+                ],
             )
+
         for file in ["xpython_wasm.js", "xpython_wasm.wasm"]:
             yield dict(
                 name=f"copy:{file}",
-                actions=[(self.copy_one, [Path(self.prefix.name) / "envs" / env_name / "bin" / file, dest / file])],
+                actions=[(self.copy_one, [
+                    Path(self.prefix) / "envs" / self.env_name / "bin" / file,
+                    dest / file
+                ])],
             )
 
     def post_build(self, manager):
@@ -117,6 +123,6 @@ def post_build(self, manager):
             return []
 
         shutil.rmtree(self.cwd.name, ignore_errors=True)
-        shutil.rmtree(self.prefix.name, ignore_errors=True)
+        shutil.rmtree(self.prefix, ignore_errors=True)
 
         return []