28f0cffdb6 chore(fs): build kqueue instead of fsevents watcher on iOS (#9950)
### Purpose

On iOS, the FSEvents API for watching files (also used on macOS) is not
available, but `kqueue` is. This PR ensures `kqueue` support is built on
iOS instead of the FSEvents based watcher implementation.

Before this PR, you could already use the `kqueue` build option to force
its usage. Unfortunately `gomobile`, the tool that I use to build
Syncthing for iOS and macOS for Synctrain, does not support setting
different build flags for iOS and macOS (unless I build separately for
each, which is a bit of a hassle because XCode nonsense). I am assuming
there are good reasons to support FSEvents even though `kqueue` is also
available on macOS (but I'm not sure why?). I do know FSEvents has been
working fine for me on macOS so it seems best to use FSEvents on macOS
and kqueue on iOS.

Note that this also requires https://github.com/syncthing/notify/pull/4
to be merged in `synchting/notify` (until that is done, this PR will
fail to build on iOS due to `notify` still trying to link to `fsevents`
stuff when the `kqueue` build flag is not set).

### Testing

I compiled both `syncthing/notify` and syncthing with this PR applied,
and used that to successfully build the Synctrain iOS app, which after
this PR works fine and should follow up file changes a bit quicker.

### Screenshots

n/a

### Documentation

n/a

## Authorship

Your name and email will be added automatically to the AUTHORS file
based on the commit metadata.

---------

Co-authored-by: Jakob Borg <jakob@kastelo.net>
2025-02-07 15:40:53 +00:00
2023-02-22 10:56:55 +01:00
2024-12-16 11:42:34 +01:00

Syncthing


MPLv2 License CII Best Practices Go Report Card

Goals

Syncthing is a continuous file synchronization program. It synchronizes files between two or more computers. We strive to fulfill the goals below. The goals are listed in order of importance, the most important ones first. This is the summary version of the goal list - for more commentary, see the full Goals document.

Syncthing should be:

  1. Safe From Data Loss

    Protecting the user's data is paramount. We take every reasonable precaution to avoid corrupting the user's files.

  2. Secure Against Attackers

    Again, protecting the user's data is paramount. Regardless of our other goals, we must never allow the user's data to be susceptible to eavesdropping or modification by unauthorized parties.

  3. Easy to Use

    Syncthing should be approachable, understandable, and inclusive.

  4. Automatic

    User interaction should be required only when absolutely necessary.

  5. Universally Available

    Syncthing should run on every common computer. We are mindful that the latest technology is not always available to every individual.

  6. For Individuals

    Syncthing is primarily about empowering the individual user with safe, secure, and easy to use file synchronization.

  7. Everything Else

    There are many things we care about that don't make it on to the list. It is fine to optimize for these values, as long as they are not in conflict with the stated goals above.

Getting Started

Take a look at the getting started guide.

There are a few examples for keeping Syncthing running in the background on your system in the etc directory. There are also several GUI implementations for Windows, Mac, and Linux.

Docker

To run Syncthing in Docker, see the Docker README.

Getting in Touch

The first and best point of contact is the Forum. If you've found something that is clearly a bug, feel free to report it in the GitHub issue tracker.

If you believe that youve found a Syncthing-related security vulnerability, please report it by emailing security@syncthing.net. Do not report it in the Forum or issue tracker.

Building

Building Syncthing from source is easy. After extracting the source bundle from a release or checking out git, you just need to run go run build.go and the binaries are created in ./bin. There's a guide with more details on the build process.

Signed Releases

Release binaries are GPG signed with the key available from https://syncthing.net/security/. There is also a built-in automatic upgrade mechanism (disabled in some distribution channels) which uses a compiled in ECDSA signature. macOS and Windows binaries are also code-signed.

Documentation

Please see the Syncthing documentation site [source].

All code is licensed under the MPLv2 License.

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Open Source Continuous File Synchronization
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