fix: download micromamba on windows

.gitignore

@@ -3,6 +3,11 @@ testing
 
 .vscode/
 
+micromamba.exe
+micromamba.tar.bz2
+info/
+library/
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
@@ -157,4 +162,4 @@ cython_debug/
 #.idea/
 
 bin/*
-conda/*
+conda/*

download_micromamba.ps1

@@ -0,0 +1,11 @@
+# Download micromamba if it doesn't exist, suppressing any errors
+if (!(Test-Path "micromamba.exe")) {
+    Write-Output "* Downloading micromamba"
+    Invoke-Webrequest -URI https://micro.mamba.pm/api/micromamba/win-64/latest -OutFile micromamba.tar.bz2
+    tar xf micromamba.tar.bz2
+
+    Move-Item -Force Library\bin\micromamba.exe micromamba.exe
+
+    Remove-Item micromamba.tar.bz2
+    Remove-Item -r ./Library/
+}

runtime.cmd

@@ -16,7 +16,7 @@ IF EXIST CONDA GOTO APP
 call update-runtime
 
 :APP
-umamba.exe shell hook -s cmd.exe -p "%MAMBA_ROOT_PREFIX%" -v
+micromamba.exe shell hook -s cmd.exe -p "%MAMBA_ROOT_PREFIX%" -v
 call "%MAMBA_ROOT_PREFIX%\condabin\mamba_hook.bat"
 call "%MAMBA_ROOT_PREFIX%\condabin\micromamba.bat" activate windows
 %*

update-runtime.cmd

@@ -1,4 +1,6 @@
 @echo off
+powershell.exe -File .\download_micromamba.ps1
+
 cd /d "%~dp0"
 
 :Isolation
@@ -9,6 +11,7 @@ SET MAMBA_ROOT_PREFIX=%~dp0conda
 echo %MAMBA_ROOT_PREFIX%
 
 
+
 setlocal EnableDelayedExpansion
 for %%a in (%*) do (
     if /I "%%a"=="--hordelib" (
@@ -34,13 +37,13 @@ if defined scribe (
 Reg add "HKLM\SYSTEM\CurrentControlSet\Control\FileSystem" /v "LongPathsEnabled" /t REG_DWORD /d "1" /f 2>nul
 :We do this twice the first time to workaround a conda bug where pip is not installed correctly the first time - Henk
 IF EXIST CONDA GOTO WORKAROUND_END
-umamba create --no-shortcuts -r conda -n windows -f %CONDA_ENVIRONMENT_FILE% -y
+micromamba create --no-shortcuts -r conda -n windows -f %CONDA_ENVIRONMENT_FILE% -y
 :WORKAROUND_END
-umamba create --no-shortcuts -r conda -n windows -f %CONDA_ENVIRONMENT_FILE% -y
+micromamba create --no-shortcuts -r conda -n windows -f %CONDA_ENVIRONMENT_FILE% -y
 
 REM Check if hordelib argument is defined
 
-umamba.exe shell hook -s cmd.exe -p %MAMBA_ROOT_PREFIX% -v
+micromamba.exe shell hook -s cmd.exe -p %MAMBA_ROOT_PREFIX% -v
 call "%MAMBA_ROOT_PREFIX%\condabin\mamba_hook.bat"
 call "%MAMBA_ROOT_PREFIX%\condabin\micromamba.bat" activate windows