Add --splice support to merge command#1794
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bysiber wants to merge 1 commit intosqlalchemy:mainfrom
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The merge command now accepts a --splice flag, matching the existing behavior in the revision command. This allows merging revisions that are not current heads, which is useful when creating merge points from non-head branches. Fixes sqlalchemy#1712
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Feb 22, 2026
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OK, this is sqla-tester setting up my work on behalf of zzzeek to try to get revision a0f9b6d of this pull request into gerrit so we can run tests and reviews and stuff
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New Gerrit review created for change a0f9b6d: https://gerrit.sqlalchemy.org/c/sqlalchemy/alembic/+/6606 |
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Gerrit review https://gerrit.sqlalchemy.org/c/sqlalchemy/alembic/+/6606 has been merged. Congratulations! :) |
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Fixes #1712
Adds a
spliceparameter to themerge()command function, matching the existing support inrevision(). This is wired through togenerate_revision()and sincespliceis already registered in_KWARGS_OPTS, the--spliceCLI flag is automatically available foralembic merge.Without this, trying to merge non-head revisions raises an error that suggests using
--splice, but the merge command didn't actually accept that flag.The patch is exactly what @zzzeek proposed in the linked discussion. Test included that verifies both the error without
spliceand success withsplice=True.