Include build date in artifact metadata (#28)

metapkg/commands/build.py

@@ -2,6 +2,7 @@
 from typing import cast
 
 import collections
+import datetime
 import graphlib
 import importlib
 import os
@@ -142,6 +143,7 @@ def handle(self) -> int:
                     outputdir=destination,
                     build_source=build_source,
                     build_debug=build_debug,
+                    build_date=datetime.datetime.now(tz=datetime.timezone.utc),
                     revision=revision or "1",
                     subdist=subdist,
                     extra_opt=extra_opt,

metapkg/packages/base.py

@@ -894,6 +894,7 @@ def get_artifact_metadata(self, build: targets.Build) -> dict[str, Any]:
             "version": pep440_to_semver(self.version),
             "version_details": self.get_version_details(),
             "revision": build.revision,
+            "build_date": build.build_date.isoformat(),
             "target": build.target.triple,
             "architecture": build.target.machine_architecture,
             "dist": build.target.ident,

metapkg/targets/base.py

@@ -8,6 +8,7 @@
 )
 
 import collections
+import datetime
 import hashlib
 import os
 import pathlib
@@ -48,6 +49,7 @@ class BuildRequest(NamedTuple):
     outputdir: str | pathlib.Path = ""
     build_source: bool = False
     build_debug: bool = False
+    build_date: datetime.datetime | None = None
     revision: str = "1"
     subdist: str | None = None
     extra_opt: bool = False
@@ -668,6 +670,9 @@ def __init__(
         self._build_deps = request.build_deps
         self._build_source = request.build_source
         self._build_debug = request.build_debug
+        self._build_date = request.build_date or datetime.datetime.now(
+            tz=datetime.timezone.utc
+        )
         self._revision = request.revision
         self._subdist = request.subdist
         self._extra_opt = request.extra_opt
@@ -710,6 +715,10 @@ def channel(self) -> str:
     def revision(self) -> str:
         return self._revision
 
+    @property
+    def build_date(self) -> datetime.datetime:
+        return self._build_date
+
     def get_source_abspath(self) -> pathlib.Path:
         raise NotImplementedError