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Add smart prune support to GitDestination#112
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Smart prune support works by only adding files from TransformResult.getAffectedFilesForSmartPrune to the git index. This causes files that only changed due to non-reversible transforms to be excluded from the commit. Smart prune is also a large performance improvement when the workflow's destination_files are a small subset of a large monorepo. The behavior without smart prune is to remove most of the SoT repo from the index only to then add it back in AddExcludedFilesToIndex. I am not sure if the git smart prune behavior matches that of other destinations because getAffectedFilesForSmartPrune was only used in a few tests in the OSS codebase. But given the API of TransformResult I am assuming the piper destination must be doing something similar.
Collaborator
mikelalcon
commented
Feb 12, 2020
Hi,
Sorry for the delay. I'll try to review this soon.
Collaborator
mikelalcon
commented
Feb 12, 2020
thanks for the change :)
Collaborator
mikelalcon
commented
Aug 11, 2022
Some update on this, we are working on a better smart prune. We think it git.destination could also benefit from it. But the tests added here are interesting to have once the implementation is done.
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Smart prune support works by only adding files from
TransformResult.getAffectedFilesForSmartPrune to the git index. This
causes files that only changed due to non-reversible transforms to be
excluded from the commit.
Smart prune is also a large performance improvement when the workflow's
destination_files are a small subset of a large monorepo. The behavior
without smart prune is to remove most of the SoT repo from the index
only to then add it back in AddExcludedFilesToIndex.
I am not sure if the git smart prune behavior matches that of other
destinations because getAffectedFilesForSmartPrune was only used in a
few tests in the OSS codebase. But given the API of TransformResult I
am assuming the piper destination must be doing something similar.