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35 commits

Author SHA1 Message Date
Elijah Newren f5a3c5e637 Update docs for change of default merge backend
Make it clear that `ort` is the default merge strategy now rather than
`recursive`, including moving `ort` to the front of the list of merge
strategies.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05 15:35:02 -07:00
Elijah Newren 67feccd3ba merge-strategies.txt: add coverage of the ort merge strategy
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05 08:57:40 -07:00
Elijah Newren 4d15c85556 merge-strategies.txt: avoid giving special preference to patience algorithm
We already have diff-algorithm that explains why there are special diff
algorithms, so we do not need to re-explain patience.  patience exists
as its own toplevel option for historical reasons, but there's no reason
to give it special preference or document it again and suggest it's more
important than other diff algorithms, so just refer to it as a
deprecated shorthand for `diff-algorithm=patience`.

Acked-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05 08:57:40 -07:00
Elijah Newren 002a6dfc7c merge-strategies.txt: do not imply using copy detection is desired
Stating that the recursive strategy "currently cannot make use of
detected copies" implies that this is a technical shortcoming of the
current algorithm.  I disagree with that.  I don't see how copies could
possibly be used in a sane fashion in a merge algorithm -- would we
propagate changes in one file on one side of history to each copy of
that file when merging?  That makes no sense to me.  I cannot think of
anything else that would make sense either.  Change the wording to
simply state that we ignore any copies.

Acked-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05 08:57:40 -07:00
Elijah Newren 510415ecc9 merge-strategies.txt: update wording for the resolve strategy
It is probably helpful to cover the default merge strategy first, so
move the text for the resolve strategy to later in the document.

Further, the wording for "resolve" claimed that it was "considered
generally safe and fast", which might imply in some readers minds that
the same is not true of other strategies.  Rather than adding this text
to all the strategies, just remove it from this one.

Acked-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05 08:57:39 -07:00
Elijah Newren e80178eac6 Documentation: edit awkward references to git merge-recursive
A few places in the documentation referred to the "`recursive` strategy"
using the phrase "`git merge-recursive`", suggesting that it was forking
subprocesses to call a toplevel builtin.  Perhaps that was relevant to
when rebase was a shell script, but it seems like a rather indirect way
to refer to the `recursive` strategy.  Simplify the references.

Acked-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05 08:57:39 -07:00
Dominic Jäger 68d40f30c4 merge-strategies: fix typo "reflected to" to "reflected in"
Signed-off-by: Dominic Jäger <dominic.jaeger@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-11 11:04:46 +09:00
Ben Peart 85b460305c merge: add merge.renames config setting
Add the ability to control rename detection for merge via a config setting.
This setting behaves the same and defaults to the value of diff.renames but only
applies to merge.

Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Ben Peart <benpeart@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-08 16:19:41 +09:00
Junio C Hamano e2a37ec2b0 Merge branch 'dp/merge-strategy-doc-fix'
Doc fix.

* dp/merge-strategy-doc-fix:
  Documentation/merge-strategies: typofix
2018-03-21 11:30:13 -07:00
David Pursehouse bd9958c358 Documentation/merge-strategies: typofix
It's strategy, not stragegy.

Signed-off-by: David Pursehouse <dpursehouse@collab.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-19 09:47:56 -07:00
Junio C Hamano 10f65c239a Merge branch 'jc/ignore-cr-at-eol'
The "diff" family of commands learned to ignore differences in
carriage return at the end of line.

* jc/ignore-cr-at-eol:
  diff: --ignore-cr-at-eol
  xdiff: reassign xpparm_t.flags bits
2017-11-27 11:06:31 +09:00
Junio C Hamano e9282f02b2 diff: --ignore-cr-at-eol
A new option --ignore-cr-at-eol tells the diff machinery to treat a
carriage-return at the end of a (complete) line as if it does not
exist.

Just like other "--ignore-*" options to ignore various kinds of
whitespace differences, this will help reviewing the real changes
you made without getting distracted by spurious CRLF<->LF conversion
made by your editor program.

Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
[jch: squashed in command line completion by Dscho]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08 10:05:27 +09:00
Junio C Hamano c25d98b2a7 merge-strategies: avoid implying that "-s theirs" exists
The description of `-Xours` merge option has a parenthetical note
that tells the readers that it is very different from `-s ours`,
which is correct, but the description of `-Xtheirs` that follows it
carelessly says "this is the opposite of `ours`", giving a false
impression that the readers also need to be warned that it is very
different from `-s theirs`, which in reality does not even exist.

Clarify it a bit to avoid misleading readers.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-25 14:34:23 +09:00
Felipe Gonçalves Assis 83837ec0b4 merge-strategies.txt: fix typo
Signed-off-by: Felipe Gonçalves Assis <felipegassis@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-22 10:42:52 -08:00
Felipe Gonçalves Assis 1b47ad160b merge-recursive: more consistent interface
Add strategy option find-renames, following git-diff interface. This
makes the option rename-threshold redundant.

Signed-off-by: Felipe Gonçalves Assis <felipegassis@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-17 10:20:52 -08:00
Felipe Gonçalves Assis d2b11eca7e merge-recursive: option to disable renames
The recursive strategy turns on rename detection by default. Add a
strategy option to disable rename detection even for exact renames.

Signed-off-by: Felipe Gonçalves Assis <felipegassis@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-17 10:20:51 -08:00
Junio C Hamano 3e33860aa1 Merge branch 'rr/doc-merge-strategies'
* rr/doc-merge-strategies:
  Documentation/merge-strategies: avoid hyphenated commands
2014-03-25 11:08:23 -07:00
Ramkumar Ramachandra 3c3e6f5645 Documentation/merge-strategies: avoid hyphenated commands
Replace git-pull and git-merge with the corresponding un-hyphenated
versions. While at it, use ` to mark it up instead of '.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-17 15:13:46 -07:00
Albert L. Lash, IV 13f72a1d5f docs/merge-strategies: remove hyphen from mis-merges
The term mismerges without hyphen is used a few other
places in the documentation. Let's update this to
be consistent.

Signed-off-by: Albert L. Lash, IV <alash3@bloomberg.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-11 11:02:59 -08:00
brian m. carlson c566500032 Documentation: document pitfalls with 3-way merge
Oftentimes people will make the same change in two branches, revert the change
in one branch, and then be surprised when a merge reinstitutes that change when
the branches are merged.  Add an explanatory paragraph that explains that this
occurs and the reason why, so people are not surprised.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-09 13:42:40 -08:00
John Keeping 4db4f0fba4 git-merge(1): document diff-algorithm option to merge-recursive
Commit 07924d4 (diff: Introduce --diff-algorithm command line option
2013-01-16) added diff-algorithm as a parameter to the recursive merge
strategy but did not document it.  Do so.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-05 10:57:23 -07:00
Junio C Hamano a944af1d86 merge: teach -Xours/-Xtheirs to binary ll-merge driver
The (discouraged) -Xours/-Xtheirs modes of merge are supposed to
give a quick and dirty way to come up with a random mixture of
cleanly merged parts and punted conflict resolution to take contents
from one side in conflicting parts.  These options however were only
passed down to the low level merge driver for text.

Teach the built-in binary merge driver to notice them as well.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-08 21:27:19 -07:00
Junio C Hamano 329351feeb Merge branch 'kb/merge-recursive-rename-threshold'
* kb/merge-recursive-rename-threshold:
  diff: add synonyms for -M, -C, -B
  merge-recursive: option to specify rename threshold

Conflicts:
	Documentation/diff-options.txt
	Documentation/merge-strategies.txt
2010-10-26 21:54:04 -07:00
Junio C Hamano 75b17fee72 Merge branch 'jf/merge-ignore-ws'
* jf/merge-ignore-ws:
  merge-recursive: options to ignore whitespace changes
  merge-recursive --patience
  ll-merge: replace flag argument with options struct
  merge-recursive: expose merge options for builtin merge
2010-10-26 21:40:54 -07:00
Štěpán Němec 62b4698e55 Use angles for placeholders consistently
Signed-off-by: Štěpán Němec <stepnem@gmail.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-08 12:29:52 -07:00
Kevin Ballard 10ae7526be merge-recursive: option to specify rename threshold
The recursive merge strategy turns on rename detection but leaves the
rename threshold at the default. Add a strategy option to allow the user
to specify a rename threshold to use.

Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29 13:15:56 -07:00
Justin Frankel 4e5dd044c6 merge-recursive: options to ignore whitespace changes
Add support for merging with ignoring line endings (specifically
--ignore-space-at-eol) when using recursive merging.  This is
as a strategy-option, so that you can do:

	git merge --strategy-option=ignore-space-at-eol <branch>

and

	git rebase --strategy-option=ignore-space-at-eol <branch>

This can be useful for coping with line-ending damage (Xcode 3.1 has a
nasty habit of converting all CRLFs to LFs, and VC6 tends to just use
CRLFs for inserted lines).

The only option I need is ignore-space-at-eol, but while at it,
include the other xdiff whitespace options (ignore-space-change,
ignore-all-space), too.

[jn: with documentation]

Signed-off-by: Justin Frankel <justin@cockos.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-27 10:08:50 -07:00
Justin Frankel 58a1ece478 merge-recursive --patience
Teach the merge-recursive strategy a --patience option to use the
"patience diff" algorithm, which tends to improve results when
cherry-picking a patch that reorders functions at the same time as
refactoring them.

To support this, struct merge_options and ll_merge_options gain an
xdl_opts member, so programs can use arbitrary xdiff flags (think
"XDF_IGNORE_WHITESPACE") in a git-aware merge.

git merge and git rebase can be passed the -Xpatience option to
use this.

[jn: split from --ignore-space patch; with documentation]

Signed-off-by: Justin Frankel <justin@cockos.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-26 09:20:03 -07:00
Jonathan Nieder 7610fa57e6 merge-recursive --renormalize
Teach "git merge-recursive" a --renormalize option to enable the
merge.renormalize configuration.  The --no-renormalize option can
be used to override it in the negative.

So in the future, you might be able to, e.g.:

	git checkout -m -Xrenormalize otherbranch

or

	git revert -Xrenormalize otherpatch

or

	git pull --rebase -Xrenormalize

The bad part: merge.renormalize is still not honored for most
commands.  And it reveals lots of places that -X has not been plumbed
in (so we get "git merge -Xrenormalize" but not much else).

NEEDSWORK: tests

Cc: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-06 09:20:02 -07:00
Junio C Hamano 566c511195 Document that merge strategies can now take their own options
Also document the recently added -Xtheirs, -Xours and -Xsubtree[=path]
options to the merge-recursive strategy.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-17 22:46:28 -08:00
Thomas Rast d4cbaa12a7 Documentation: clarify 'ours' merge strategy
Make it clear in the docs that the merge takes the tree of HEAD and
ignores everything in the other branches.  This should hopefully clear
up confusion, usually caused by the user looking for a strategy that
resolves all conflict hunks in favour of HEAD (which is completely
different and currently not supported).

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-15 12:26:08 -08:00
Wincent Colaiuta 4fa535a179 Grammar fixes to "merge" and "patch-id" docs
Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-25 17:28:33 -07:00
Miklos Vajna 02b00e16bb Documentation/git-merge: document subtree strategy.
There was already some documentation about subtree under
Documentation/howto but it was missing from git-merge manpage.

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-19 01:43:02 -07:00
Junio C Hamano 9688a882e1 Documentation: recursive is the default strategy these days.
We still said resolve was the default in handful places.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-08 14:04:33 -08:00
Jon Loeliger bb73d73c08 Refactor merge strategies into separate includable file.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-06 10:31:48 -08:00