3eaaec3113
This avoids import with --no-content and with --content potentially generating two different trees, leading to a merge conflict when run in two different clones of a repo. And it's necessary groundwork to make git-annex sync --no-content import from special remotes that support importKey. Only the directory special remote currently supports importKey, and it generates the same key as git-annex usually does, so there is no behavior change for it. Future special remotes will need to take care when adding importKey, if it generates different keys. Added some warnings about that to comments. This commit was sponsored by Noam Kremen on Patreon.
184 lines
6.6 KiB
Markdown
184 lines
6.6 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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# 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.
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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, and then copies
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each file to every remote that it is syncing with.
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This behavior can be overridden by configuring the preferred content
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of a repository. See [[git-annex-preferred-content]](1).
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When `remote.<name>.annex-tracking-branch` is configured for a special
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remote and that branch is checked out, syncing with --content will
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import changes from the remote, merge them into the branch, and export
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any changes that have been committed to the branch back to the remote.
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With --no-content, imports will only be made from special remotes that
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support importing without transferting files, and no exports will be done.
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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.
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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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