Add support for generating v1 recipes

.github/workflows/tests.yml

@@ -102,6 +102,7 @@ jobs:
       CONDA_CHANNEL_LABEL: ${{ matrix.conda-version == 'canary' && 'conda-canary/label/dev::' || '' }}
       CONDA_VERSION: ${{ contains('canary|release', matrix.conda-version) && 'conda' || format('conda={0}', matrix.conda-version) }}
       PYTEST_MARKER: ${{ matrix.test-type == 'serial' && 'serial' || 'not serial' }}
+      REQUIREMENTS_V1_RECIPE_FORMAT: ${{ matrix.python-version != '3.10' && '--file tests/requirements-v1-recipe-format.txt' || ''}}
 
     steps:
       - name: Free Disk Space
@@ -165,6 +166,7 @@ jobs:
           --file tests/requirements.txt
           --file tests/requirements-${{ runner.os }}.txt
           --file tests/requirements-ci.txt
+          ${{ env.REQUIREMENTS_V1_RECIPE_FORMAT }}
           python=${{ matrix.python-version }}
           ${{ env.CONDA_CHANNEL_LABEL }}${{ env.CONDA_VERSION }}
 
@@ -296,6 +298,7 @@ jobs:
       ErrorActionPreference: Stop  # powershell exit on first error
       CONDA_CHANNEL_LABEL: ${{ matrix.conda-version == 'canary' && 'conda-canary/label/dev' || 'defaults' }}
       PYTEST_MARKER: ${{ matrix.test-type == 'serial' && 'serial' || 'not serial and not slow' }}
+      REQUIREMENTS_V1_RECIPE_FORMAT: ${{ matrix.python-version != '3.10' && '--file tests/requirements-v1-recipe-format.txt' || ''}}
 
     steps:
       - name: Checkout Source
@@ -334,6 +337,7 @@ jobs:
           --file tests\requirements.txt
           --file tests\requirements-${{ runner.os }}.txt
           --file tests\requirements-ci.txt
+          ${{ env.REQUIREMENTS_V1_RECIPE_FORMAT }}
           python=${{ matrix.python-version }}
           ${{ env.CONDA_CHANNEL_LABEL }}::conda
 
@@ -405,6 +409,7 @@ jobs:
       # Use conda-forge for release tests since conda 25.11+ is not in defaults for osx-64
       CONDA_CHANNEL_LABEL: ${{ matrix.conda-version == 'canary' && 'conda-canary/label/dev' || 'conda-forge' }}
       PYTEST_MARKER: ${{ matrix.test-type == 'serial' && 'serial' || 'not serial' }}
+      REQUIREMENTS_V1_RECIPE_FORMAT: ${{ matrix.python-version != '3.10' && '--file tests/requirements-v1-recipe-format.txt' || ''}}
 
     steps:
       - name: Checkout Source
@@ -454,6 +459,7 @@ jobs:
           --file tests/requirements.txt
           --file tests/requirements-${{ runner.os }}.txt
           --file tests/requirements-ci.txt
+          ${{ env.REQUIREMENTS_V1_RECIPE_FORMAT }}
           python=${{ matrix.python-version }}
           ${{ env.CONDA_CHANNEL_LABEL }}::conda
 

conda_build/cli/main_skeleton.py

@@ -7,12 +7,14 @@
 import pkgutil
 import sys
 from importlib import import_module
+from pathlib import Path
 from typing import TYPE_CHECKING
 
 from conda.base.context import context
 
 from .. import api
 from ..config import Config
+from ..exceptions import CondaBuildUserError
 
 if TYPE_CHECKING:
     from argparse import ArgumentParser, Namespace
@@ -21,6 +23,8 @@
 thisdir = os.path.dirname(os.path.abspath(__file__))
 logging.basicConfig(level=logging.INFO)
 
+SUPPORTED_RECIPE_VERSIONS = ("v0", "v1")
+
 
 def parse_args(args: Sequence[str] | None) -> tuple[ArgumentParser, Namespace]:
     from conda.cli.conda_argparse import ArgumentParser
@@ -37,6 +41,14 @@ def parse_args(args: Sequence[str] | None) -> tuple[ArgumentParser, Namespace]:
         """,
     )
 
+    # Flag for using rattler-build
+    parser.add_argument(
+        "--output-format",
+        choices=SUPPORTED_RECIPE_VERSIONS,
+        default="v0",
+        help="Output format for recipe generation.",
+    )
+
     repos = parser.add_subparsers(dest="repo")
 
     skeletons = [
@@ -62,6 +74,16 @@ def execute(args: Sequence[str] | None = None) -> int:
         parser.print_help()
         sys.exit()
 
+    if parsed.output_format == "v1":
+        try:
+            from conda_recipe_manager.parser.recipe_parser_convert import (
+                RecipeParserConvert,
+            )
+        except ImportError:
+            raise CondaBuildUserError(
+                "Please install conda-recipe-manager to enable v1 recipe generation."
+            )
+
     api.skeletonize(
         parsed.packages,
         parsed.repo,
@@ -71,4 +93,19 @@ def execute(args: Sequence[str] | None = None) -> int:
         config=config,
     )
 
+    if parsed.output_format == "v1":
+        for package in parsed.packages:
+            v0_recipe_path = Path(os.path.join(parsed.output_dir, package, "meta.yaml"))
+            v1_recipe_path = Path(
+                os.path.join(parsed.output_dir, package, "recipe.yaml")
+            )
+
+            recipe_content = RecipeParserConvert.pre_process_recipe_text(
+                v0_recipe_path.read_text()
+            )
+            recipe_converter = RecipeParserConvert(recipe_content)
+            v1_content, _, _ = recipe_converter.render_to_v1_recipe_format()
+            v1_recipe_path.write_text(v1_content, encoding="utf-8")
+            os.remove(v0_recipe_path)
+
     return 0

news/5919-v1-recipe-generation.md

@@ -0,0 +1,19 @@
+### Enhancements
+
+* Add support for generating v1 recipes using `conda-recipe-manager` (#5919).
+
+### Bug fixes
+
+* <news item>
+
+### Deprecations
+
+* <news item>
+
+### Docs
+
+* <news item>
+
+### Other
+
+* <news item>

tests/cli/test_main_skeleton.py

@@ -1,6 +1,7 @@
 # Copyright (C) 2014 Anaconda, Inc
 # SPDX-License-Identifier: BSD-3-Clause
 import os
+import sys
 
 import pytest
 
@@ -57,3 +58,16 @@ def test_skeleton_pypi_arguments_work(testing_workdir):
     metadata = api.render("photutils")[0][0]
     assert "--offline" in metadata.meta["build"]["script"]
     assert metadata.version() == "1.10.0"
+
+
+@pytest.mark.slow
+@pytest.mark.skipif(sys.version_info < (3, 11), reason="requires python3.11 or higher")
+def test_v1_recipe_generation(testing_workdir):
+    """
+    Test v1 recipe generation
+    """
+    args = ["--output-format=v1", "pypi", "botocore"]
+    main_skeleton.execute(args)
+    assert os.path.isfile("botocore/recipe.yaml")
+    with open(os.path.join("botocore", "recipe.yaml")) as f:
+        assert "botocore" in f.read()

tests/requirements-v1-recipe-format.txt

@@ -0,0 +1 @@
+conda-recipe-manager