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authorLibravatar Barret Rhoden <brho@google.com>2019-05-15 17:45:01 -0400
committerLibravatar Junio C Hamano <gitster@pobox.com>2019-05-16 11:36:23 +0900
commit1fc73384bac289b4907f0adba2a25d0644affa73 (patch)
tree97015428911c3a14b5b7bf27d241453787e0195c /commit-graph.c
parentblame: add config options for the output of ignored or unblamable lines (diff)
downloadtgif-1fc73384bac289b4907f0adba2a25d0644affa73.tar.xz
blame: optionally track line fingerprints during fill_blame_origin()
fill_blame_origin() is a convenient place to store data that we will use throughout the lifetime of a blame_origin. Some heuristics for ignoring commits during a blame session can make use of this storage. In particular, we will calculate a fingerprint for each line of a file for blame_origins involved in an ignored commit. In this commit, we only calculate the line_starts, reusing the existing code from the scoreboard's line_starts. In an upcoming commit, we will actually compute the fingerprints. This feature will be used when we attempt to pass blame entries to parents when we "ignore" a commit. Most uses of fill_blame_origin() will not require this feature, hence the flag parameter. Multiple calls to fill_blame_origin() are idempotent, and any of them can request the creation of the fingerprints structure. Suggested-by: Michael Platings <michael@platin.gs> Signed-off-by: Barret Rhoden <brho@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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