188 lines
6.9 KiB
Markdown
188 lines
6.9 KiB
Markdown
# NAME
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git-annex sync - synchronize local repository with remotes
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# SYNOPSIS
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git annex sync `[remote ...]`
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# DESCRIPTION
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This command synchronizes the local repository with its remotes.
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The sync process involves first committing any local changes to files
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that have previously been added to the repository,
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then fetching and merging the current branch and the `git-annex` branch
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from the remote repositories, and finally pushing the changes back to
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those branches on the remote repositories. You can use standard git
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commands to do each of those steps by hand, or if you don't want to
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worry about the details, you can use sync.
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The content of annexed objects is not synced by default, but the --content
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option (see below) can make that also be synchronized.
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When using git-annex, often remotes are not bare repositories, because
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it's helpful to add remotes for nearby machines that you want
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to access the same annexed content. Syncing with a non-bare remote will
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not normally update the remote's current branch with changes from the local
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repository. (Unless the remote is configured with
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receive.denyCurrentBranch=updateInstead.)
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To make working with such non-bare remotes easier, sync pushes not only
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local `master` to remote `master`, but also to remote `synced/master` (and
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similar with other branches). When `git-annex sync` is later run on the
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remote, it will merge the `synced/` branches that the repository has
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received.
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Some special remotes contain a tree of files that can be imported
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and/or exported, and syncing with these remotes behaves differently.
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See [[git-annex-import]](1) and [[git-annex-export]](1) for details
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about how importing and exporting work; syncing with such a remote
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is essentially an import followed by an export. In many cases,
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importing needs to download content from the remote, and so sync will
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only import when the --content option is used. (And exporting only
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ever happens when --content is used.) The remote's
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`remote.<name>.annex-tracking-branch` also must be configured, and
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have the same value as the currently checked out branch.
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# OPTIONS
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* `[remote]`
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By default, all remotes are synced, except for remotes that have
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`remote.<name>.annex-sync` set to false. By specifying the names
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of remotes (or remote groups), you can control which ones to sync with.
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* `--fast`
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Only sync with the remotes with the lowest annex-cost value configured.
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When a list of remotes (or remote groups) is provided, it picks from
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amoung those, otherwise it picks from amoung all remotes.
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* `--only-annex` `-a`, `--not-only-annex`
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Only sync the git-annex branch and annexed content with remotes,
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not other git branches.
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This avoids pulling and pushing other branches, and it avoids committing
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any local changes. It's up to you to use regular git commands to do that.
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The `annex.synconlyannex` configuration can be set to true to make
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this be the default behavior of `git-annex sync`. To override such
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a setting, use `--not-only-annex`.
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When this is combined with --no-content, only the git-annex branch
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will be synced.
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* `--commit`, `--no-commit`
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A commit is done by default (unless `annex.autocommit` is set to false).
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Use --no-commit to avoid committing local changes.
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* `--message=msg`
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Use this option to specify a commit message.
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* `--pull`, `--no-pull`
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By default, syncing pulls from remotes and imports from some special
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remotes. Use --no-pull to disable all pulling.
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When `remote.<name>.annex-pull` or `remote.<name>.annex-sync`
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are set to false, pulling is disabled for those remotes, and using
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`--pull` will not enable it.
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* `--push`, `--no-push`
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By default, syncing pushes changes to remotes and exports to some
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special remotes. Use --no-push to disable all pushing.
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When `remote.<name>.annex-push` or `remote.<name>.annex-sync` are
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set to false, or `remote.<name>.annex-readonly` is set to true,
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pushing is disabled for those remotes, and using `--push` will not enable
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it.
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* `--content`, `--no-content`
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Normally, syncing does not transfer the contents of annexed files.
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The --content option causes the content of annexed files
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to also be uploaded and downloaded as necessary, to sync the content
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between the repository and its remotes.
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The `annex.synccontent` configuration can be set to true to make content
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be synced by default.
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Normally this tries to get each annexed file that is in the working tree
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and whose content the local repository does not yet have, from any remote
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that it's syncing with that has a copy, and then copies each file to
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every remote that it is syncing with. This behavior can be overridden by
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configuring the preferred content of repositories. See
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[[git-annex-preferred-content]](1).
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* `--content-of=path` `-C path`
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While --content operates on all annexed files,
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--content-of allows limiting the transferred files to ones in a given
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location.
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This option can be repeated multiple times with different paths.
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* `--all` `-A`
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This option, when combined with `--content`, makes all available versions
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of all files be synced, when preferred content settings allow.
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Note that preferred content settings that use `include=` or `exclude=`
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will only match the version of files currently in the work tree, but not
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past versions of files.
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* `--jobs=N` `-JN`
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Enables parallel syncing with up to the specified number of jobs
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running at once. For example: `-J10`
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Setting this to "cpus" will run one job per CPU core.
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When there are multiple git remotes, pushes will be made to them in
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parallel. Pulls are not done in parallel because that tends to be
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less efficient. When --content is synced, the files are processed
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in parallel as well.
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* `--resolvemerge`, `--no-resolvemerge`
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By default, merge conflicts are automatically handled by sync. When two
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conflicting versions of a file have been committed, both will be added
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to the tree, under different filenames. For example, file "foo"
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would be replaced with "foo.variant-A" and "foo.variant-B". (See
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[[git-annex-resolvemerge]](1) for details.)
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Use `--no-resolvemerge` to disable this automatic merge conflict
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resolution. It can also be disabled by setting `annex.resolvemerge`
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to false.
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* `--cleanup`
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Removes the local and remote `synced/` branches, which were created
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and pushed by `git-annex sync`.
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This can come in handy when you've synced a change to remotes and now
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want to reset your master branch back before that change. So you
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run `git reset` and force-push the master branch to remotes, only
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to find that the next `git annex merge` or `git annex sync` brings the
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changes back. Why? Because the `synced/master` branch is hanging
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around and still has the change in it. Cleaning up the `synced/` branches
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prevents that problem.
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# SEE ALSO
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[[git-annex]](1)
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[[git-annex-preferred-content]](1)
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# AUTHOR
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Joey Hess <id@joeyh.name>
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Warning: Automatically converted into a man page by mdwn2man. Edit with care.
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