53 lines
2.0 KiB
Markdown
53 lines
2.0 KiB
Markdown
---
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layout: "docs"
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page_title: "vagrant rsync-auto - Command-Line Interface"
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sidebar_current: "cli-rsyncauto"
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description: |-
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The "vagrant rsync-auto" command watches all local directories of any rsync
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configured synced folders and automatically initiates an rsync transfer when
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changes are detected.
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---
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# rsync-auto
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**Command: `vagrant rsync-auto`**
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This command watches all local directories of any
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[rsync synced folders](/docs/synced-folders/rsync.html) and automatically
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initiates an rsync transfer when changes are detected. This command does
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not exit until an interrupt is received.
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The change detection is optimized to use platform-specific APIs to listen
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for filesystem changes, and does not simply poll the directory.
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## Options
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* `--[no-]poll` - Force Vagrant to watch for changes using filesystem
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polling instead of filesystem events. This is required for some filesystems
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that do not support events. Warning: enabling this will make `rsync-auto`
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_much_ slower. By default, polling is disabled.
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## Machine State Changes
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The `rsync-auto` command does not currently handle machine state changes
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gracefully. For example, if you start the `rsync-auto` command, then
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halt the guest machine, then make changes to some files, then boot it
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back up, `rsync-auto` will not attempt to resync.
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To ensure that the command works properly, you should start `rsync-auto`
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only when the machine is running, and shut it down before any machine
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state changes.
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You can always force a resync with the [rsync](/docs/cli/rsync.html) command.
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## Vagrantfile Changes
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If you change or move your Vagrantfile, the `rsync-auto` command will have
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to be restarted. For example, if you add synced folders to the Vagrantfile,
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or move the directory that contains the Vagrantfile, the `rsync-auto`
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command will either not pick up the changes or may begin experiencing
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strange behavior.
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Before making any such changes, it is recommended that you turn off
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`rsync-auto`, then restart it afterwards.
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