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-= Git bundle v2 format
-
-The Git bundle format is a format that represents both refs and Git objects.
-
-== Format
-
-We will use ABNF notation to define the Git bundle format. See
-protocol-common.txt for the details.
-
-A v2 bundle looks like this:
-
-----
-bundle    = signature *prerequisite *reference LF pack
-signature = "# v2 git bundle" LF
-
-prerequisite = "-" obj-id SP comment LF
-comment      = *CHAR
-reference    = obj-id SP refname LF
-
-pack         = ... ; packfile
-----
-
-A v3 bundle looks like this:
-
-----
-bundle    = signature *capability *prerequisite *reference LF pack
-signature = "# v3 git bundle" LF
-
-capability   = "@" key ["=" value] LF
-prerequisite = "-" obj-id SP comment LF
-comment      = *CHAR
-reference    = obj-id SP refname LF
-key          = 1*(ALPHA / DIGIT / "-")
-value        = *(%01-09 / %0b-FF)
-
-pack         = ... ; packfile
-----
-
-== Semantics
-
-A Git bundle consists of several parts.
-
-* "Capabilities", which are only in the v3 format, indicate functionality that
-	the bundle requires to be read properly.
-
-* "Prerequisites" lists the objects that are NOT included in the bundle and the
-  reader of the bundle MUST already have, in order to use the data in the
-  bundle. The objects stored in the bundle may refer to prerequisite objects and
-  anything reachable from them (e.g. a tree object in the bundle can reference
-  a blob that is reachable from a prerequisite) and/or expressed as a delta
-  against prerequisite objects.
-
-* "References" record the tips of the history graph, iow, what the reader of the
-  bundle CAN "git fetch" from it.
-
-* "Pack" is the pack data stream "git fetch" would send, if you fetch from a
-  repository that has the references recorded in the "References" above into a
-  repository that has references pointing at the objects listed in
-  "Prerequisites" above.
-
-In the bundle format, there can be a comment following a prerequisite obj-id.
-This is a comment and it has no specific meaning. The writer of the bundle MAY
-put any string here. The reader of the bundle MUST ignore the comment.
-
-=== Note on the shallow clone and a Git bundle
-
-Note that the prerequisites does not represent a shallow-clone boundary. The
-semantics of the prerequisites and the shallow-clone boundaries are different,
-and the Git bundle v2 format cannot represent a shallow clone repository.
-
-== Capabilities
-
-Because there is no opportunity for negotiation, unknown capabilities cause 'git
-bundle' to abort.  The only known capability is `object-format`, which specifies
-the hash algorithm in use, and can take the same values as the
-`extensions.objectFormat` configuration value.