Provenance Tagging

alembic/versions/2024_07_25_1851-05bb57675701_provenancetag.py

@@ -0,0 +1,45 @@
+"""provenancetag
+
+Revision ID: 05bb57675701
+Revises: d86b7dee2172
+Create Date: 2024-07-25 18:51:53.756271
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '05bb57675701'
+down_revision = 'd86b7dee2172'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('provenance_tags',
+    sa.Column('tag', sa.String(), nullable=False),
+    sa.Column('provenance_id', sa.String(), nullable=True),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
+    sa.Column('modified', sa.DateTime(timezone=True), nullable=False),
+    sa.Column('id', sa.BigInteger(), autoincrement=True, nullable=False),
+    sa.ForeignKeyConstraint(['provenance_id'], ['provenances.id'], name='provenance_tags_provenance_id_fkey', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('tag', 'provenance_id', name='_provenancetag_prov_tag_uc')
+    )
+    op.create_index(op.f('ix_provenance_tags_created_at'), 'provenance_tags', ['created_at'], unique=False)
+    op.create_index(op.f('ix_provenance_tags_id'), 'provenance_tags', ['id'], unique=False)
+    op.create_index(op.f('ix_provenance_tags_provenance_id'), 'provenance_tags', ['provenance_id'], unique=False)
+    op.create_index(op.f('ix_provenance_tags_tag'), 'provenance_tags', ['tag'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_provenance_tags_tag'), table_name='provenance_tags')
+    op.drop_index(op.f('ix_provenance_tags_provenance_id'), table_name='provenance_tags')
+    op.drop_index(op.f('ix_provenance_tags_id'), table_name='provenance_tags')
+    op.drop_index(op.f('ix_provenance_tags_created_at'), table_name='provenance_tags')
+    op.drop_table('provenance_tags')
+    # ### end Alembic commands ###

default_config.yaml

@@ -93,6 +93,8 @@ pipeline:
   save_before_subtraction: true
   # automatically save all the products at the end of the pipeline run
   save_at_finish: true
+  # the ProvenanceTag that the products of the pipline should be associated with
+  provenance_tag: current
 
 preprocessing:
   # these steps need to be done on the images: either they came like that or we do it in the pipeline

improc/tools.py

@@ -239,10 +239,10 @@ def strip_wcs_keywords( hdr ):
 
     """
 
-    basematch = re.compile( "^C(RVAL|RPIX|UNIT|DELT|TYPE)[12]$" )
-    cdmatch = re.compile( "^CD[12]_[12]$" )
-    sipmatch = re.compile( "^[AB]P?_(ORDER|(\d+)_(\d+))$" )
-    tpvmatch = re.compile( "^P[CV]\d+_\d+$" )
+    basematch = re.compile( r"^C(RVAL|RPIX|UNIT|DELT|TYPE)[12]$" )
+    cdmatch = re.compile( r"^CD[12]_[12]$" )
+    sipmatch = re.compile( r"^[AB]P?_(ORDER|(\d+)_(\d+))$" )
+    tpvmatch = re.compile( r"^P[CV]\d+_\d+$" )
 
     tonuke = set()
     for kw in hdr.keys():

models/base.py

@@ -196,8 +196,9 @@ def get_all_database_objects(display=False, session=None):
         A dictionary with the object class names as keys and the IDs list as values.
 
     """
-    from models.provenance import Provenance, CodeVersion, CodeHash
+    from models.provenance import Provenance, ProvenanceTag, CodeVersion, CodeHash
     from models.datafile import DataFile
+    from models.knownexposure import KnownExposure, PipelineWorker
     from models.exposure import Exposure
     from models.image import Image
     from models.source_list import SourceList
@@ -214,10 +215,10 @@ def get_all_database_objects(display=False, session=None):
     from models.user import AuthUser, PasswordLink
 
     models = [
-        CodeHash, CodeVersion, Provenance, DataFile, Exposure, Image,
+        CodeHash, CodeVersion, Provenance, ProvenanceTag, DataFile, Exposure, Image,
         SourceList, PSF, WorldCoordinates, ZeroPoint, Cutouts, Measurements, Object,
         CalibratorFile, CalibratorFileDownloadLock, CatalogExcerpt, Reference, SensorSection,
-        AuthUser, PasswordLink
+        AuthUser, PasswordLink, KnownExposure, PipelineWorker
     ]
 
     output = {}

models/image.py

@@ -562,8 +562,40 @@ def merge_all(self, session):
         Must provide a session to merge into. Need to commit at the end.
 
         Returns the merged image with all its products on the same session.
+
+        DEVELOPER NOTE: changing what gets merged in this function
+        requires a corresponding change in
+        pipeline/data_store.py::DataStore.save_and_commit
+
         """
         new_image = self.safe_merge(session=session)
+
+        # Note -- this next block of code is useful for trying to debug
+        #  sqlalchemy weirdness.  However, because it calls the __repr__
+        #  method of various objects, it actually causes tests to fail.
+        #  In particular, there are tests that use 'ZTF' as the instrument,
+        #  but the code has no ZTF instrument defined, so calling
+        #  Image.__repr__ throws an error.  As such, comment the
+        #  code out below, but leave it here in case somebody wants
+        #  to temporarily re-enable it for debugging purposes.
+        #
+        # import io
+        # strio = io.StringIO()
+        # strio.write( "In image.merge_all; objects in session:\n" )
+        # if len( session.new ) > 0 :
+        #     strio.write( "    NEW:\n" )
+        #     for obj in session.new:
+        #         strio.write( f"        {obj}\n" )
+        # if len( session.dirty ) > 0:
+        #     strio.write( "    DIRTY:\n" )
+        #     for obj in session.dirty:
+        #         strio.write( f"        {obj}\n" )
+        # if len( session.deleted ) > 0:
+        #     strio.write( "    DELETED:\n" )
+        #     for obj in session.deleted:
+        #         strio.write( f"        {obj}\n" )
+        # SCLogger.debug( strio.getvalue() )
+
         session.flush()  # make sure new_image gets an ID
 
         if self.sources is not None:

models/provenance.py

@@ -2,16 +2,19 @@
 import json
 import base64
 import hashlib
+from collections import defaultdict
 import sqlalchemy as sa
+import sqlalchemy.orm as orm
 from sqlalchemy import event
 from sqlalchemy.orm import relationship
 from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.exc import IntegrityError
+from sqlalchemy.schema import UniqueConstraint
 
 from util.util import get_git_hash
 
 import models.base
-from models.base import Base, SeeChangeBase, SmartSession, safe_merge
+from models.base import Base, AutoIDMixin, SeeChangeBase, SmartSession, safe_merge
 
 
 class CodeHash(Base):
@@ -375,3 +378,144 @@ def insert_new_dataset(mapper, connection, target):
     foreign_keys="Provenance.code_version_id",
     passive_deletes=True,
 )
+
+
+class ProvenanceTagExistsError(Exception):
+    pass
+
+class ProvenanceTag(Base, AutoIDMixin):
+    """A human-readable tag to associate with provenances.
+
+    A well-defined provenane tag will have a provenance defined for every step, but there will
+    only be a *single* provenance for each step (except for refrenceing, where there could be
+    multiple provenances defined).  The class method validate can check this for duplicates.
+
+    """
+
+    __tablename__ = "provenance_tags"
+
+    __table_args__ = ( UniqueConstraint( 'tag', 'provenance_id', name='_provenancetag_prov_tag_uc' ), )
+
+    tag = sa.Column(
+        sa.String,
+        nullable=False,
+        index=True,
+        doc='Human-readable tag name; one tag has many provenances associated with it.'
+    )
+
+    provenance_id = sa.Column(
+        sa.ForeignKey( 'provenances.id', ondelete="CASCADE", name='provenance_tags_provenance_id_fkey' ),
+        index=True,
+        doc='Provenance ID.  Each tag/process should only have one provenance.'
+    )
+
+    provenance = orm.relationship(
+        'Provenance',
+        cascade='save-update, merge, refresh-expire, expunge',
+        lazy='selectin',
+        doc=( "Provenance" )
+    )
+
+    def __repr__( self ):
+        return ( '<ProvenanceTag('
+                 f'tag={self.tag}, '
+                 f'provenance_id={self.provenance_id}>' )
+
+    @classmethod
+    def newtag( cls, tag, provs, session=None ):
+        """Add a new ProvenanceTag.  Will thrown an error if it already exists.
+
+        Usually, this is called from pipeline.top_level.make_provenance_tree, not directly.
+
+        Always commits.
+
+        Parameters
+        ----------
+          tag: str
+            The human-readable provenance tag.  For cleanliness, should be ASCII, no spaces.
+
+          provs: list of str or Provenance
+            The provenances to include in this tag.  Usually, you want to make sure to include
+            a provenance for every process in the pipeline: exposure, referencing, preprocessing,
+            extraction, subtraction, detection, cutting, measuring, [TODO MORE: deepscore, alert]
+
+            -oo- load_exposure, download, import_image, alignment or aligning, coaddition
+
+        """
+
+        with SmartSession( session ) as sess:
+            # Get all the provenance IDs we're going to insert
+            provids = set()
+            for prov in provs:
+                if isinstance( prov, Provenance ):
+                    provids.add( prov.id )
+                elif isinstance( prov, str ):
+                    provobj = sess.get( Provenance, prov )
+                    if provobj is None:
+                        raise ValueError( f"Unknown Provenance ID {prov}" )
+                    provids.add( provobj.id )
+                else:
+                    raise TypeError( f"Everything in the provs list must be Provenance or str, not {type(prov)}" )
+
+            try:
+                # Make sure that this tag doesn't already exist.  To avoid race
+                #  conditions of two processes creating it at once (which,
+                #  given how we expect the code to be used, should probably
+                #  not happen in practice), lock the table before searching
+                #  and only unlock after inserting.
+                sess.connection().execute( sa.text( "LOCK TABLE provenance_tags" ) )
+                current = sess.query( ProvenanceTag ).filter( ProvenanceTag.tag == tag )
+                if current.count() != 0:
+                    sess.rollback()
+                    raise ProvenanceTagExistsError( f"ProvenanceTag {tag} already exists." )
+
+                for provid in provids:
+                    sess.add( ProvenanceTag( tag=tag, provenance_id=provid ) )
+
+                sess.commit()
+            finally:
+                # Make sure no lock is left behind; exiting the with block
+                #   ought to do this, but be paranoid.
+                sess.rollback()
+
+    @classmethod
+    def validate( cls, tag, processes=None, session=None ):
+        """Verify that a given tag doesn't have multiply defined processes.
+
+        One exception: referenceing can have multiply defined processes.
+
+        Raises an exception if things don't work.
+
+        Parameters
+        ----------
+          tag: str
+            The tag to validate
+
+          processes: list of str
+            The processes to make sure are present.  If None, won't make sure
+            that any processes are present, will just make sure there are no
+            duplicates.
+
+        """
+
+        repeatok = { 'referencing' }
+
+        with SmartSession( session ) as sess:
+            ptags = ( sess.query( (ProvenanceTag.id,Provenance.process) )
+                      .filter( ProvenanceTag.provenance_id==Provenance.id )
+                      .filter( ProvenanceTag.tag==tag )
+                     ).all()
+
+        count = defaultdict( lambda: 0 )
+        for ptagid, process in ptags:
+            count[ process ] += 1
+
+        multiples = [ i for i in count.keys() if count[i] > 1 and i not in repeatok ]
+        if len(multiples) > 0:
+            raise ValueError( f"Database integrity error: ProcessTag {tag} has more than one "
+                              f"provenance for processes {multiples}" )
+
+        if processes is not None:
+            missing = [ i for i in processes if i not in count.keys() ]
+            if len( missing ) > 0:
+                raise ValueError( f"Some processes missing from ProcessTag {tag}: {missing}" )

pipeline/data_store.py

@@ -1,3 +1,4 @@
+import io
 import warnings
 import datetime
 import sqlalchemy as sa
@@ -1379,6 +1380,9 @@ def save_and_commit(self, exists_ok=False, overwrite=True, no_archive=False,
         True), as the image headers get "first-look" values, not
         necessarily the latest and greatest if we tune either process.
 
+        DEVELOPER NOTE: this code has to stay synced properly with
+        models/image.py::Image.merge_all
+
         Parameters
         ----------
         exists_ok: bool, default False
@@ -1431,8 +1435,15 @@ def save_and_commit(self, exists_ok=False, overwrite=True, no_archive=False,
             if obj is None:
                 continue
 
-            SCLogger.debug( f'save_and_commit considering a {obj.__class__.__name__} with filepath '
-                            f'{obj.filepath if isinstance(obj,FileOnDiskMixin) else "<none>"}' )
+            strio = io.StringIO()
+            strio.write( f"save_and_commit of {att} considering a {obj.__class__.__name__}" )
+            if isinstance( obj, FileOnDiskMixin ):
+                strio.write( f" with filepath {obj.filepath}" )
+            elif isinstance( obj, list ):
+                strio.write( f" of types {[type(i) for i in obj]}" )
+            SCLogger.debug( strio.getvalue() )
+            # SCLogger.debug( f'save_and_commit of {att} considering a {obj.__class__.__name__} with filepath '
+            #                 f'{obj.filepath if isinstance(obj,FileOnDiskMixin) else "<none>"}' )
 
             if isinstance(obj, FileOnDiskMixin):
                 mustsave = True