1f010d6bdf
We presently use the ".txt" extension for our AsciiDoc files. While not wrong, most editors do not associate this extension with AsciiDoc, meaning that contributors don't get automatic editor functionality that could be useful, such as syntax highlighting and prose linting. It is much more common to use the ".adoc" extension for AsciiDoc files, since this helps editors automatically detect files and also allows various forges to provide rich (HTML-like) rendering. Let's do that here, renaming all of the files and updating the includes where relevant. Adjust the various build scripts and makefiles to use the new extension as well. Note that this should not result in any user-visible changes to the documentation. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
112 lines
3.2 KiB
Plaintext
112 lines
3.2 KiB
Plaintext
gitformat-bundle(5)
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===================
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NAME
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----
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gitformat-bundle - The bundle file format
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SYNOPSIS
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--------
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[verse]
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*.bundle
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*.bdl
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DESCRIPTION
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-----------
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The Git bundle format is a format that represents both refs and Git
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objects. A bundle is a header in a format similar to
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linkgit:git-show-ref[1] followed by a pack in *.pack format.
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The format is created and read by the linkgit:git-bundle[1] command,
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and supported by e.g. linkgit:git-fetch[1] and linkgit:git-clone[1].
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FORMAT
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------
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We will use ABNF notation to define the Git bundle format. See
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linkgit:gitprotocol-common[5] for the details.
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A v2 bundle looks like this:
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----
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bundle = signature *prerequisite *reference LF pack
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signature = "# v2 git bundle" LF
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prerequisite = "-" obj-id SP comment LF
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comment = *CHAR
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reference = obj-id SP refname LF
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pack = ... ; packfile
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----
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A v3 bundle looks like this:
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----
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bundle = signature *capability *prerequisite *reference LF pack
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signature = "# v3 git bundle" LF
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capability = "@" key ["=" value] LF
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prerequisite = "-" obj-id SP comment LF
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comment = *CHAR
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reference = obj-id SP refname LF
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key = 1*(ALPHA / DIGIT / "-")
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value = *(%01-09 / %0b-FF)
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pack = ... ; packfile
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----
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SEMANTICS
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---------
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A Git bundle consists of several parts.
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* "Capabilities", which are only in the v3 format, indicate functionality that
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the bundle requires to be read properly.
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* "Prerequisites" list the objects that are NOT included in the bundle and the
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reader of the bundle MUST already have, in order to use the data in the
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bundle. The objects stored in the bundle may refer to prerequisite objects and
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anything reachable from them (e.g. a tree object in the bundle can reference
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a blob that is reachable from a prerequisite) and/or expressed as a delta
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against prerequisite objects.
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* "References" record the tips of the history graph, iow, what the reader of the
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bundle CAN "git fetch" from it.
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* "Pack" is the pack data stream "git fetch" would send, if you fetch from a
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repository that has the references recorded in the "References" above into a
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repository that has references pointing at the objects listed in
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"Prerequisites" above.
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In the bundle format, there can be a comment following a prerequisite obj-id.
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This is a comment and it has no specific meaning. The writer of the bundle MAY
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put any string here. The reader of the bundle MUST ignore the comment.
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Note on shallow clones and Git bundles
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Note that the prerequisites do not represent a shallow-clone boundary. The
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semantics of the prerequisites and the shallow-clone boundaries are different,
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and the Git bundle v2 format cannot represent a shallow clone repository.
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CAPABILITIES
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------------
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Because there is no opportunity for negotiation, unknown capabilities cause 'git
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bundle' to abort.
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* `object-format` specifies the hash algorithm in use, and can take the same
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values as the `extensions.objectFormat` configuration value.
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* `filter` specifies an object filter as in the `--filter` option in
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linkgit:git-rev-list[1]. The resulting pack-file must be marked as a
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`.promisor` pack-file after it is unbundled.
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GIT
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---
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Part of the linkgit:git[1] suite
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