kernel/git - git - PowerEL Git System

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Author	SHA1	Message	Date
Junio C Hamano	3cde4e02ee	diff: retire "compaction" heuristics When a patch inserts a block of lines, whose last lines are the same as the existing lines that appear before the inserted block, "git diff" can choose any place between these existing lines as the boundary between the pre-context and the added lines (adjusting the end of the inserted block as appropriate) to come up with variants of the same patch, and some variants are easier to read than others. We have been trying to improve the choice of this boundary, and Git 2.11 shipped with an experimental "compaction-heuristic". Since then another attempt to improve the logic further resulted in a new "indent-heuristic" logic. It is agreed that the latter gives better result overall, and the former outlived its usefulness. Retire "compaction", and keep "indent" as an experimental feature. The latter hopefully will be turned on by default in a future release, but that should be done as a separate step. Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	8 years ago
Michael Haggerty	5b162879e9	blame: honor the diff heuristic options and config Teach "git blame" and "git annotate" the --compaction-heuristic and --indent-heuristic options that are now supported by "git diff". Also teach them to honor the `diff.compactionHeuristic` and `diff.indentHeuristic` configuration options. It would be conceivable to introduce separate configuration options for "blame" and "annotate"; for example `blame.compactionHeuristic` and `blame.indentHeuristic`. But it would be confusing to users if blame output is inconsistent with diff output, so it makes more sense for them to respect the same configuration. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>	9 years ago

Author

SHA1

Message

Date

Junio C Hamano

3cde4e02ee

diff: retire "compaction" heuristics

When a patch inserts a block of lines, whose last lines are the
same as the existing lines that appear before the inserted block,
"git diff" can choose any place between these existing lines as the
boundary between the pre-context and the added lines (adjusting the
end of the inserted block as appropriate) to come up with variants
of the same patch, and some variants are easier to read than others.

We have been trying to improve the choice of this boundary, and Git
2.11 shipped with an experimental "compaction-heuristic".  Since
then another attempt to improve the logic further resulted in a new
"indent-heuristic" logic.  It is agreed that the latter gives better
result overall, and the former outlived its usefulness.

Retire "compaction", and keep "indent" as an experimental feature.
The latter hopefully will be turned on by default in a future
release, but that should be done as a separate step.

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

8 years ago

Michael Haggerty

5b162879e9

blame: honor the diff heuristic options and config

Teach "git blame" and "git annotate" the --compaction-heuristic and
--indent-heuristic options that are now supported by "git diff".

Also teach them to honor the `diff.compactionHeuristic` and
`diff.indentHeuristic` configuration options.

It would be conceivable to introduce separate configuration options for
"blame" and "annotate"; for example `blame.compactionHeuristic` and
`blame.indentHeuristic`. But it would be confusing to users if blame
output is inconsistent with diff output, so it makes more sense for them
to respect the same configuration.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

9 years ago

2 Commits (68a423ab3e5c160e1162382d2ef0831039b298d4)