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69897bc2b8
Commitsee27ca4and0f544eeintroduced rules by which git-upload-archive would restrict clients from accessing unreachable objects. However, we never documented those rules anywhere, nor their reason for being. Let's do so now. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
198 lines
6.2 KiB
Plaintext
198 lines
6.2 KiB
Plaintext
git-archive(1)
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==============
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NAME
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----
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git-archive - Create an archive of files from a named tree
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SYNOPSIS
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--------
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[verse]
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'git archive' [--format=<fmt>] [--list] [--prefix=<prefix>/] [<extra>]
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[-o <file> | --output=<file>] [--worktree-attributes]
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[--remote=<repo> [--exec=<git-upload-archive>]] <tree-ish>
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[<path>...]
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DESCRIPTION
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-----------
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Creates an archive of the specified format containing the tree
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structure for the named tree, and writes it out to the standard
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output. If <prefix> is specified it is
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prepended to the filenames in the archive.
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'git archive' behaves differently when given a tree ID versus when
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given a commit ID or tag ID. In the first case the current time is
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used as the modification time of each file in the archive. In the latter
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case the commit time as recorded in the referenced commit object is
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used instead. Additionally the commit ID is stored in a global
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extended pax header if the tar format is used; it can be extracted
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using 'git get-tar-commit-id'. In ZIP files it is stored as a file
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comment.
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OPTIONS
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-------
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--format=<fmt>::
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Format of the resulting archive: 'tar' or 'zip'. If this option
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is not given, and the output file is specified, the format is
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inferred from the filename if possible (e.g. writing to "foo.zip"
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makes the output to be in the zip format). Otherwise the output
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format is `tar`.
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-l::
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--list::
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Show all available formats.
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-v::
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--verbose::
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Report progress to stderr.
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--prefix=<prefix>/::
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Prepend <prefix>/ to each filename in the archive.
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-o <file>::
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--output=<file>::
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Write the archive to <file> instead of stdout.
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--worktree-attributes::
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Look for attributes in .gitattributes files in the working tree
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as well (see <<ATTRIBUTES>>).
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<extra>::
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This can be any options that the archiver backend understands.
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See next section.
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--remote=<repo>::
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Instead of making a tar archive from the local repository,
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retrieve a tar archive from a remote repository. Note that the
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remote repository may place restrictions on which sha1
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expressions may be allowed in `<tree-ish>`. See
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linkgit:git-upload-archive[1] for details.
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--exec=<git-upload-archive>::
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Used with --remote to specify the path to the
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'git-upload-archive' on the remote side.
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<tree-ish>::
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The tree or commit to produce an archive for.
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<path>::
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Without an optional path parameter, all files and subdirectories
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of the current working directory are included in the archive.
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If one or more paths are specified, only these are included.
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BACKEND EXTRA OPTIONS
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---------------------
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zip
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~~~
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-0::
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Store the files instead of deflating them.
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-9::
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Highest and slowest compression level. You can specify any
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number from 1 to 9 to adjust compression speed and ratio.
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CONFIGURATION
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-------------
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tar.umask::
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This variable can be used to restrict the permission bits of
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tar archive entries. The default is 0002, which turns off the
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world write bit. The special value "user" indicates that the
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archiving user's umask will be used instead. See umask(2) for
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details. If `--remote` is used then only the configuration of
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the remote repository takes effect.
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tar.<format>.command::
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This variable specifies a shell command through which the tar
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output generated by `git archive` should be piped. The command
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is executed using the shell with the generated tar file on its
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standard input, and should produce the final output on its
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standard output. Any compression-level options will be passed
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to the command (e.g., "-9"). An output file with the same
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extension as `<format>` will be use this format if no other
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format is given.
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+
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The "tar.gz" and "tgz" formats are defined automatically and default to
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`gzip -cn`. You may override them with custom commands.
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tar.<format>.remote::
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If true, enable `<format>` for use by remote clients via
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linkgit:git-upload-archive[1]. Defaults to false for
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user-defined formats, but true for the "tar.gz" and "tgz"
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formats.
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[[ATTRIBUTES]]
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ATTRIBUTES
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----------
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export-ignore::
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Files and directories with the attribute export-ignore won't be
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added to archive files. See linkgit:gitattributes[5] for details.
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export-subst::
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If the attribute export-subst is set for a file then Git will
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expand several placeholders when adding this file to an archive.
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See linkgit:gitattributes[5] for details.
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Note that attributes are by default taken from the `.gitattributes` files
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in the tree that is being archived. If you want to tweak the way the
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output is generated after the fact (e.g. you committed without adding an
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appropriate export-ignore in its `.gitattributes`), adjust the checked out
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`.gitattributes` file as necessary and use `--worktree-attributes`
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option. Alternatively you can keep necessary attributes that should apply
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while archiving any tree in your `$GIT_DIR/info/attributes` file.
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EXAMPLES
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--------
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`git archive --format=tar --prefix=junk/ HEAD | (cd /var/tmp/ && tar xf -)`::
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Create a tar archive that contains the contents of the
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latest commit on the current branch, and extract it in the
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`/var/tmp/junk` directory.
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`git archive --format=tar --prefix=git-1.4.0/ v1.4.0 | gzip >git-1.4.0.tar.gz`::
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Create a compressed tarball for v1.4.0 release.
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`git archive --format=tar.gz --prefix=git-1.4.0/ v1.4.0 >git-1.4.0.tar.gz`::
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Same as above, but using the builtin tar.gz handling.
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`git archive --prefix=git-1.4.0/ -o git-1.4.0.tar.gz v1.4.0`::
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Same as above, but the format is inferred from the output file.
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`git archive --format=tar --prefix=git-1.4.0/ v1.4.0^{tree} | gzip >git-1.4.0.tar.gz`::
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Create a compressed tarball for v1.4.0 release, but without a
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global extended pax header.
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`git archive --format=zip --prefix=git-docs/ HEAD:Documentation/ > git-1.4.0-docs.zip`::
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Put everything in the current head's Documentation/ directory
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into 'git-1.4.0-docs.zip', with the prefix 'git-docs/'.
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`git archive -o latest.zip HEAD`::
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Create a Zip archive that contains the contents of the latest
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commit on the current branch. Note that the output format is
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inferred by the extension of the output file.
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`git config tar.tar.xz.command "xz -c"`::
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Configure a "tar.xz" format for making LZMA-compressed tarfiles.
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You can use it specifying `--format=tar.xz`, or by creating an
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output file like `-o foo.tar.xz`.
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SEE ALSO
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--------
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linkgit:gitattributes[5]
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GIT
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---
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Part of the linkgit:git[1] suite
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