fix: update channel ordering to reflecte priority

Signed-off-by: Seth Stadick <sstadick@gmail.com>

Author: sstadick

.github/workflows/build-pr.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Build packages
         shell: bash
-        run: pixi run build-all --channel https://prefix.dev/modular-community --channel https://conda.modular.com/max
+        run: pixi run build-all
         env:
           RATTLER_BUILD_ENABLE_GITHUB_INTEGRATION: true
           RATTLER_BUILD_COLOR: always

.github/workflows/build-upload.yml

@@ -34,7 +34,7 @@ jobs:
 
       - name: Build packages
         shell: bash
-        run: pixi run build-all --channel https://prefix.dev/modular-community --channel https://conda.modular.com/max
+        run: pixi run build-all
         env:
           RATTLER_BUILD_ENABLE_GITHUB_INTEGRATION: true
           RATTLER_BUILD_COLOR: always

scripts/build-all.py

@@ -10,6 +10,8 @@
 import sys
 import os
 
+# Channels are in priority order
+DEFAULT_CHANNELS = ["conda-forge", "max", "modular-community"]
 
 def main() -> None:
     parser = argparse.ArgumentParser(description="Build all recipes.")
@@ -48,12 +50,16 @@ def main() -> None:
             "build",
         ]
 
+        for channel in DEFAULT_CHANNELS:
+            command.extend(["--channel", channel])
+
         for channel in args.channel:
+            if channel in DEFAULT_CHANNELS:
+                continue
             command.extend(["--channel", channel])
+
         command.extend(
             [
-                "--channel",
-                "conda-forge",
                 "--variant-config",
                 variant_config,
                 "--skip-existing=all",