switch to rattler-build for conda

Author: kzhdev

.github/workflows/publish-conda.yml

@@ -11,8 +11,8 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-15-intel]  # Intel runner for conda compatibility
         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
-        # Note: Excluded Python 3.14 as conda-build doesn't support it yet
-        # Note: Using macos-15-intel (x86_64) to avoid ARM64 virtual package resolution issues
+        # Note: rattler-build (boa's successor) supports all Python versions
+        # Note: Using macos-15-intel (x86_64) for consistency with conda-forge practices
 
     steps:
     - uses: actions/checkout@v4
@@ -25,16 +25,16 @@ jobs:
         channel-priority: strict
         activate-environment: build-env
 
-    - name: Install boa and anaconda-client
+    - name: Install rattler-build and anaconda-client
       shell: bash -l {0}
       run: |
-        # Use boa (conda-forge's modern build tool) for better virtual package resolution
-        conda install -y boa anaconda-client
+        # Use rattler-build (boa's successor, written in Rust) for better virtual package resolution
+        conda install -y rattler-build anaconda-client
 
     - name: Build conda package
       shell: bash -l {0}
       run: |
-        conda mambabuild conda.recipe --output-folder ./conda-bld
+        rattler-build build --recipe conda.recipe --output-dir ./conda-bld
 
     - name: Upload build artifacts
       uses: actions/upload-artifact@v4

.github/workflows/publish-release.yml

@@ -63,8 +63,8 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-15-intel]  # Intel runner for conda compatibility
         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
-        # Note: Excluded Python 3.14 as conda-build doesn't support it yet
-        # Note: Using macos-15-intel (x86_64) to avoid ARM64 virtual package resolution issues
+        # Note: rattler-build (boa's successor) supports all Python versions
+        # Note: Using macos-15-intel (x86_64) for consistency with conda-forge practices
 
     steps:
     - uses: actions/checkout@v4
@@ -77,16 +77,16 @@ jobs:
         channel-priority: strict
         activate-environment: build-env
 
-    - name: Install boa and anaconda-client
+    - name: Install rattler-build and anaconda-client
       shell: bash -l {0}
       run: |
-        # Use boa (conda-forge's modern build tool) for better virtual package resolution
-        conda install -y boa anaconda-client
+        # Use rattler-build (boa's successor, written in Rust) for better virtual package resolution
+        conda install -y rattler-build anaconda-client
 
     - name: Build conda package
       shell: bash -l {0}
       run: |
-        conda mambabuild conda.recipe --output-folder ./conda-bld
+        rattler-build build --recipe conda.recipe --output-dir ./conda-bld
 
     - name: Upload Conda artifacts
       uses: actions/upload-artifact@v4

conda.recipe/meta.yaml

@@ -20,7 +20,7 @@ source:
 build:
   number: 0
   script: {{ PYTHON }} -m pip install . -vv
-  # Skip Python 2.x, 3.7 and below, and 3.14+ (conda-build doesn't support 3.14 yet)
+  # Skip Python 2.x, 3.7 and below, and 3.14+ (not yet released)
   skip: true  # [py<38 or py>=314]
 
 requirements: