fix: omit also jinja functions

src/rattler_build_conda_compat/jinja/filters.py

@@ -0,0 +1,29 @@
+from __future__ import annotations
+
+from rattler_build_conda_compat.jinja.utils import _MissingUndefined
+
+
+def _version_to_build_string(some_string: str | _MissingUndefined) -> str:
+    """
+    Converts some version by removing the . character and returning only the first two elements of the version.
+    If piped value is undefined, it returns the undefined value as is.
+    """
+    if isinstance(some_string, _MissingUndefined):
+        inner_value = f"{some_string._undefined_name} | version_to_build_string"  # noqa: SLF001
+        return f"${{{{ {inner_value} }}}}"
+    # We first split the string by whitespace and take the first part
+    split = some_string.split()[0] if some_string.split() else some_string
+    # We then split the string by . and take the first two parts
+    parts = split.split(".")
+    major = parts[0] if len(parts) > 0 else ""
+    minor = parts[1] if len(parts) > 1 else ""
+    return f"{major}{minor}"
+
+
+def _bool(value: str) -> bool:
+    return bool(value)
+
+
+def _split(s: str, sep: str = " ") -> list[str]:
+    """Filter that split a string by a separator"""
+    return s.split(sep)

src/rattler_build_conda_compat/jinja.py → src/rattler_build_conda_compat/jinja/jinja.py

@@ -4,30 +4,31 @@
 
 import jinja2
 import yaml
-from jinja2 import DebugUndefined
 
+from rattler_build_conda_compat.jinja.filters import _bool, _split, _version_to_build_string
+from rattler_build_conda_compat.jinja.objects import (
+    _Env,
+    _is_linux,
+    _is_unix,
+    _is_win,
+    _stub_compatible_pin,
+    _stub_match,
+    _stub_subpackage_pin,
+)
+from rattler_build_conda_compat.jinja.utils import _MissingUndefined
 from rattler_build_conda_compat.loader import load_yaml
 
 
 class RecipeWithContext(TypedDict, total=False):
     context: dict[str, str]
 
 
-class _MissingUndefined(DebugUndefined):
-    def __str__(self) -> str:
-        """
-        By default, `DebugUndefined` return values in the form `{{ value }}`.
-        `rattler-build` has a different syntax, so we need to override this method,
-        and return the value in the form `${{ value }}`.
-        """
-        return f"${super().__str__()}"
-
-
 def jinja_env() -> jinja2.Environment:
     """
     Create a `rattler-build` specific Jinja2 environment with modified syntax.
     """
-    return jinja2.Environment(
+
+    env = jinja2.Environment(
         variable_start_string="${{",
         variable_end_string="}}",
         trim_blocks=True,
@@ -36,6 +37,34 @@ def jinja_env() -> jinja2.Environment:
         undefined=_MissingUndefined,
     )
 
+    env_obj = _Env()
+
+    # inject rattler-build recipe functions in jinja environment
+    env.globals.update(
+        {
+            "compiler": lambda x: x + "_compiler_stub",
+            "stdlib": lambda x: x + "_stdlib_stub",
+            "pin_subpackage": _stub_subpackage_pin,
+            "pin_compatible": _stub_compatible_pin,
+            "cdt": lambda *args, **kwargs: "cdt_stub",  # noqa: ARG005
+            "env": env_obj,
+            "match": _stub_match,
+            "is_unix": _is_unix,
+            "is_win": _is_win,
+            "is_linux": _is_linux,
+        }
+    )
+
+    # inject rattler-build recipe filters in jinja environment
+    env.filters.update(
+        {
+            "version_to_buildstring": _version_to_build_string,
+            "split": _split,
+            "bool": _bool,
+        }
+    )
+    return env
+
 
 def load_recipe_context(context: dict[str, str], jinja_env: jinja2.Environment) -> dict[str, str]:
     """

src/rattler_build_conda_compat/jinja/objects.py

@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+
+class _Env:
+    """A class to represent the env object used in rattler-build recipe."""
+
+    def get(self, env_var: str, default: str | None = None) -> str:
+        if default:
+            return f"""${{{{ env.get('{env_var}', default='{default}') }}}}"""
+
+        return f"""${{{{ env.get("{env_var}")}}}}"""
+
+    def exists(self, env_var: str) -> str:
+        return f"${{{{ env.exists('{env_var}') }}}}"
+
+
+def _stub_compatible_pin(*args, **kwargs) -> str:  # noqa: ARG001, ANN003, ANN002
+    return f"compatible_pin {args[0]}"
+
+
+def _stub_subpackage_pin(*args, **kwargs) -> str:  # noqa: ARG001, ANN003, ANN002
+    return f"subpackage_pin {args[0]}"
+
+
+def _stub_match(*args, **kwargs) -> str:  # noqa: ARG001, ANN003, ANN002
+    return f"match {args[0]}"
+
+
+def _is_unix(platform: str) -> str:
+    return f"is_unix {platform}"
+
+
+def _is_win(platform: str) -> str:
+    return f"is_win {platform}"
+
+
+def _is_linux(platform: str) -> str:
+    return f"is_linux {platform}"

src/rattler_build_conda_compat/jinja/utils.py

@@ -0,0 +1,11 @@
+from jinja2 import DebugUndefined
+
+
+class _MissingUndefined(DebugUndefined):
+    def __str__(self) -> str:
+        """
+        By default, `DebugUndefined` return values in the form `{{ value }}`.
+        `rattler-build` has a different syntax, so we need to override this method,
+        and return the value in the form `${{ value }}`.
+        """
+        return f"${super().__str__()}"

tests/__snapshots__/test_jinja.ambr

@@ -1,15 +1,142 @@
 # serializer version: 1
 # name: test_render_recipe_with_context
   '''
+  about:
+    description: '# Mamba, the Fast Cross-Platform Package Manager
+
+      ${{ env.get("MY_ENV_VAR")}}
+
+      ${{ env.get('MY_ENV_VAR', default='default_value') }}
+
+      '
+    homepage: https://github.com/mamba-org/mamba
+    license: BSD-3-Clause
+    license_family: BSD
+    license_file: LICENSE
+    repository: https://github.com/mamba-org/mamba
+    summary: A fast drop-in alternative to conda, using libsolv for dependency resolution
   build:
-    string: ${{ blas_variant }}${{ hash }}_foo-bla
+    number: '2'
   context:
-    name: foo
-    name_version: foo-bla
-    version: bla
-  package:
-    name: foo
-    version: bla
+    build_number: '2'
+    libmamba_version: 1.5.8
+    libmambapy_version: 1.5.8
+    mamba_version: 1.5.8
+    name: mamba
+    release: 2024.03.25
+  outputs:
+  - build:
+      script:
+      - ''
+      - ''
+    package:
+      name: libmamba
+      version: 1.5.8
+    requirements:
+      build:
+      - cxx_compiler_stub
+      - cmake
+      - ninja
+      - ''
+      host:
+      - libsolv >=0.7.23
+      - libcurl >=8.4.0
+      - fmt
+      - ''
+      ignore_run_exports:
+        by_name:
+        - spdlog
+        - python
+      run:
+      - libsolv >=0.7.23
+      run_exports:
+      - subpackage_pin libmamba
+    tests:
+    - script:
+      - else:
+        - if not exist %LIBRARY_PREFIX%\include\mamba\version.hpp (exit 1)
+        if: unix
+        then:
+        - test -d ${PREFIX}/include/mamba
+  - build:
+      script:
+      - ''
+      - ''
+    package:
+      name: libmambapy
+      version: 1.5.8
+    requirements:
+      build:
+      - cxx_compiler_stub
+      - cmake
+      - ninja
+      - if: build_platform != target_platform
+        then:
+        - python
+        - cross-python_${{ target_platform }}
+        - pybind11
+        - pybind11-abi
+      host:
+      - python
+      - nlohmann_json
+      - subpackage_pin libmamba
+      ignore_run_exports:
+        by_name:
+        - spdlog
+      run:
+      - python
+      - subpackage_pin libmamba
+      run_exports:
+      - subpackage_pin libmambapy
+    tests:
+    - python:
+        imports:
+        - libmambapy
+        - libmambapy.bindings
+    - script:
+      - python -c "import libmambapy._version; assert libmambapy._version.__version__
+        == '1.5.8'"
+  - build:
+      python:
+        entry_points:
+        - mamba = mamba.mamba:main
+      script:
+      - ''
+      - ''
+      string: py${{ python | version_to_build_string }}h${{ hash }}_2
+    package:
+      name: mamba
+      version: 1.5.8
+    requirements:
+      build:
+      - if: build_platform != target_platform
+        then:
+        - python
+        - cross-python_${{ target_platform }}
+      run:
+      - python
+      - conda >=23.9,<24
+      - subpackage_pin libmambapy
+    tests:
+    - python:
+        imports:
+        - mamba
+    - script:
+      - mamba --help
+      - python -c "import mamba._version; assert mamba._version.__version__ == '1.5.8'"
+      - if: linux
+        then:
+        - test -f ${PREFIX}/etc/profile.d/mamba.sh
+        - mamba create -n test_py2 python=2.7 --dry-run
+        - mamba install xtensor xsimd -c conda-forge --dry-run
+      - if: unix
+        then:
+        - test -f ${PREFIX}/condabin/mamba
+  recipe:
+    name: mamba-split
+  source:
+    sha256: 6ddaf4b0758eb7ca1250f427bc40c2c3ede43257a60bac54e4320a4de66759a6
+    url: https://github.com/mamba-org/mamba/archive/refs/tags/2024.03.25.tar.gz
 
   '''
 # ---