Add new functionaltiy for reversing diffs. #72
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ReverseFileDiff() and ReverseMultiFileDiff() accept a diff and return a diff which is the reverse operation -- that is, a diff that when applied would undo the edits of the original diff.
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We found ourselves needing a tool to reverse diffs, and wrote one in terms of sourcegraph/go-diff. Some colleagues suggested that this library might be generally useful, so I'm offering this as a contribution. |
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Sorry, I need to make a quick edit. I'll repost soon. |
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Sorry about the noise. This PR is ready for consideration. |
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ReverseFileDiff() and ReverseMultiFileDiff() accept a diff and return a diff which is the reverse operation -- that is, a diff that when applied would undo the edits of the original diff.