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Signed-off-by: Javi Fontan <jfontan@gmail.com>
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In some cases the original data is not saved before it is cleaned
and forces a panic when it's needed.
The change adds ObjectToPack.CleanOriginal to be used to clean original
object instead of:
object.Original = nil
Now when the Original data is freed because it's no longer in the pack
window a SetOriginal call is done to make sure that Size, Hash and Size
data is not lost.
Signed-off-by: Javi Fontan <jfontan@gmail.com>
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SetOriginal now skips setting resolved values if the provided
object is nil. BackToOriginal also skips nil Original objects.
Signed-off-by: Javi Fontan <jfontan@gmail.com>
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Resolving cycles relied on ObjectToPack objects having Original. This
is no longer true with the changes from #720. This commit changes:
* Save original type, hash and size in ObjectToPack
* Use SetObject to set both Original and resolved type, hash and size
* Restore original object before using BackToOriginal (cycle resolution)
* Update encoder test to check this case
Signed-off-by: Javi Fontan <jfontan@gmail.com>
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- Remove wrong 'if' on delta selector that causes poor delta reutilizations
- packfile.Encoder now can write deltas and objects in a non specific order
- ObjectToPack now saves the Offset on the packfile to be able to obtain base
offset in a recursive manner and write them before the delta itself
- Added encoder test to check cyclic delta chains
- Check the output packfile hash in all encoder tests
Signed-off-by: Antonio Jesus Navarro Perez <antnavper@gmail.com>
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- no length for map initialization
- don't check for boolean/error return
- don't format string
- use string method of bytes buffer instead of converting bytes to
string
- use `strings.Contains` instead of `strings.Index`
- use `bytes.Equal` instead of `bytes.Compare`
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* plumbing: add DeltaObject interface for EncodedObjects that
are deltas and hold additional information about them, such
as the hash of the base object.
* plumbing/storer: add DeltaObjectStorer interface for object
storers that can return DeltaObject. Note that calls to
EncodedObject will never return instances of DeltaObject.
That requires explicit calls to DeltaObject.
* storage/filesystem: implement DeltaObjectStorer interface.
* plumbing/packfile: packfile encoder now supports reusing
deltas that are already computed (e.g. from an existing
packfile) if the storage implements DeltaObjectStorer.
Reusing deltas boosts performance of packfile generation
(e.g. on push).
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To be able to fix #261 we will move again to gopkg.in before v4 stable release.
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* packfile: delta selection logic
- Implemented logic to assign deltas to objects
* Requested changes
* Improved tests and fix errors
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* plumbing: rename Object -> EncodedObject.
* plumbing/storer: rename ObjectStorer -> EncodedObjectStorer.
* move difftree to plumbing/difftree.
* move diff -> utils/diff
* make Object/Tag/Blob/Tree/Commit/File depend on storer.
* Object and its implementations now depend only on
storer.EncodedObjectStorer, not git.Repository.
* Tests are decoupled accordingly.
* move Object/Commit/File/Tag/Tree to plumbing/object.
* move Object/Commit/File/Tag/Tree to plumbing/object.
* move checkClose to utils/ioutil.
* move RevListObjects to plumbing/revlist.Objects.
* move DiffTree to plumbing/difftree package.
* rename files with plural nouns to singular
* plumbing/object: add GetBlob/GetCommit/GetTag/GetTree.
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* format/packfile: implement delta encoding
- Added all the logic to the encoder to be able to encode ref-delta and offset-delta objects
- Created plumbing.ObjectToPack to handle deltas and standard objects when we are writting them into a packfile
- Added specific encoder delta tests, one standard object and one delta, and one standard object and two deltas
* Requested changes.
* Requested changes
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