Merge pull request #594 from lsst/tickets/DM-47972

DM-47972: Add entry point for loading translator code automatically

pyproject.toml

@@ -4,6 +4,9 @@ name = "lsst-obs-lsst"
 [project.entry-points.'butler.cli']
 obs_lsst = "lsst.obs.lsst.cli:get_cli_subcommands"
 
+[project.entry-points.astro_metadata_translators]
+obs_lsst = "lsst.obs.lsst.translators:_register_translators"
+
 [tool.ruff]
 line-length = 110
 target-version = "py311"

python/lsst/obs/lsst/translators/__init__.py

@@ -18,3 +18,26 @@
 from .comCam import *
 from .comCamSim import *
 from .lsstCamSim import *
+
+
+def _register_translators() -> list[str]:
+    """Ensure that the translators are loaded.
+
+    When this function is imported we are guaranteed to also import the
+    translators which will automatically register themselves.
+
+    Returns
+    -------
+    translators : `list` [ `str` ]
+        The names of the translators provided by this package.
+    """
+    return [
+        LsstCamTranslator.name,
+        LatissTranslator.name,
+        LsstComCamTranslator.name,
+        LsstComCamSimTranslator.name,
+        LsstCamSimTranslator.name,
+        LsstCamImSimTranslator.name,
+        LsstUCDCamTranslator.name,
+        LsstCamPhoSimTranslator.name,
+    ]