Accept published_at field for CrossBuildEnvReleaseSpec and add publish date information to MetadataView

CHANGELOG.md

@@ -5,7 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [0.34.5] - 2026/05/20
+
+### Added
+
+- `CrossBuildEnvReleaseSpec` now has a `published_at` field containing the UTC timestamp
+  when the release was published on GitHub (ISO 8601 format). This is exposed in
+  `pyodide xbuildenv search --all` and `pyodide xbuildenv search --all --json`.
+  [#349](https://github.com/pyodide/pyodide-build/pull/349)
 
 ## [0.34.4] - 2026/05/15
 

pyodide_build/cli/xbuildenv.py

@@ -237,6 +237,7 @@ def _search(
                 "min": release.min_pyodide_build_version,
                 "max": release.max_pyodide_build_version,
             },
+            published_at=release.published_at,
             compatible=release.is_compatible(
                 python_version=local["python"],
                 pyodide_build_version=local["pyodide-build"],

pyodide_build/tests/test_cli_xbuildenv.py

@@ -352,11 +352,12 @@ def test_xbuildenv_search(
         "Python",
         "Emscripten",
         "pyodide-build",
+        "Published",
         "Compatible",
     ]
 
     row1 = lines[3].strip().split("│")[1:-1]
-    assert [col.strip() for col in row1] == ["0.1.0", "4.5.6", "1.39.8", "-", "No"]
+    assert [col.strip() for col in row1] == ["0.1.0", "4.5.6", "1.39.8", "-", "", "No"]
 
 
 def test_xbuildenv_search_json(tmp_path, fake_xbuildenv_releases_compatible):
@@ -390,6 +391,7 @@ def test_xbuildenv_search_json(tmp_path, fake_xbuildenv_releases_compatible):
             "python",
             "emscripten",
             "pyodide_build",
+            "published_at",
             "compatible",
         }, f"Environment {environment} has unexpected keys: {environment.keys()}"
 

pyodide_build/tests/test_xbuildenv_releases.py

@@ -243,6 +243,31 @@ def test_is_compatible_full():
     )
 
 
+def test_published_at():
+    release = CrossBuildEnvReleaseSpec(
+        version="0.1.0",
+        url="https://example.com/0.1.0.tar.gz",
+        sha256="1234567890abcdef",
+        python_version="3.8.0",
+        emscripten_version="1.39.8",
+        published_at="2024-01-18T21:52:25Z",
+    )
+    assert release.published_at == "2024-01-18T21:52:25Z"
+
+    release_no_date = CrossBuildEnvReleaseSpec(
+        version="0.1.0",
+        url="https://example.com/0.1.0.tar.gz",
+        sha256="1234567890abcdef",
+        python_version="3.8.0",
+        emscripten_version="1.39.8",
+    )
+    assert release_no_date.published_at is None
+
+    metadata = CrossBuildEnvMetaSpec(**FAKE_METADATA)
+    for release in metadata.releases.values():
+        assert release.published_at is None
+
+
 def test_is_compatible_without_pyodide_build_range():
     release = CrossBuildEnvReleaseSpec(
         version="0.1.0",

pyodide_build/views.py

@@ -13,6 +13,7 @@ class MetadataView:
     emscripten: str
     pyodide_build: dict[str, str | None]
     compatible: bool
+    published_at: str | None = None
 
     @classmethod
     def to_table(cls, views: list["MetadataView"]) -> str:
@@ -21,6 +22,7 @@ def to_table(cls, views: list["MetadataView"]) -> str:
             ("Python", 10),
             ("Emscripten", 10),
             ("pyodide-build", 25),
+            ("Published", 10),
             ("Compatible", 10),
         ]
 
@@ -59,12 +61,14 @@ def to_table(cls, views: list["MetadataView"]) -> str:
             pyodide_build_range = (
                 f"{view.pyodide_build['min'] or ''} - {view.pyodide_build['max'] or ''}"
             )
+            published = (view.published_at or "")[:10]
             row = [
                 f"{view.version:<{columns[0][1]}}",
                 f"{view.python:<{columns[1][1]}}",
                 f"{view.emscripten:<{columns[2][1]}}",
                 f"{pyodide_build_range:<{columns[3][1]}}",
-                f"{'Yes' if view.compatible else 'No':<{columns[4][1]}}",
+                f"{published:<{columns[4][1]}}",
+                f"{'Yes' if view.compatible else 'No':<{columns[5][1]}}",
             ]
             table.append(
                 vertical + vertical.join(f" {cell} " for cell in row) + vertical
@@ -82,6 +86,7 @@ def to_json(cls, views: list["MetadataView"]) -> str:
                         "python": view.python,
                         "emscripten": view.emscripten,
                         "pyodide_build": view.pyodide_build,
+                        "published_at": view.published_at,
                         "compatible": view.compatible,
                     }
                     for view in views

pyodide_build/xbuildenv_releases.py

@@ -23,10 +23,12 @@ class CrossBuildEnvReleaseSpec(BaseModel):
     python_version: str
     # The version of the Emscripten SDK
     emscripten_version: str
+    # The UTC timestamp when the release was published on GitHub (ISO 8601)
+    published_at: str | None = None
     # Minimum and maximum pyodide-build versions that are compatible with this release
     min_pyodide_build_version: str | None = None
     max_pyodide_build_version: str | None = None
-    model_config = ConfigDict(extra="forbid", title="CrossBuildEnvReleasesSpec")
+    model_config = ConfigDict(extra="ignore", title="CrossBuildEnvReleasesSpec")
 
     @property
     def python_version_tuple(self) -> tuple[int, int, int]: