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addrevision: use general delta when the incoming base delta is bad...
addrevision: use general delta when the incoming base delta is bad We unify the delta selection process to be a simple three options process: - try to use the incoming delta (if lazydeltabase is on) - try to find a suitable parents to delta against (if gd is on) - try to delta against the tipmost revision The first of this option that yield a valid delta will be used. The test change in 'test-generaldelta.t' show this behavior as we use a delta against the parent instead of a full delta when the incoming delta is not suitable. This as some impact on 'test-bundle.t' because a delta somewhere changes. It does not seems to change the test semantic and have been ignored.
Brodie Rao - - Load All Authors

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r12083:ebfc4692 stable
r27191:20a9226b default
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diffs.txt
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Mercurial's default format for showing changes between two versions of
a file is compatible with the unified format of GNU diff, which can be
used by GNU patch and many other standard tools.
While this standard format is often enough, it does not encode the
following information:
- executable status and other permission bits
- copy or rename information
- changes in binary files
- creation or deletion of empty files
Mercurial also supports the extended diff format from the git VCS
which addresses these limitations. The git diff format is not produced
by default because a few widespread tools still do not understand this
format.
This means that when generating diffs from a Mercurial repository
(e.g. with :hg:`export`), you should be careful about things like file
copies and renames or other things mentioned above, because when
applying a standard diff to a different repository, this extra
information is lost. Mercurial's internal operations (like push and
pull) are not affected by this, because they use an internal binary
format for communicating changes.
To make Mercurial produce the git extended diff format, use the --git
option available for many commands, or set 'git = True' in the [diff]
section of your configuration file. You do not need to set this option
when importing diffs in this format or using them in the mq extension.