Output of restic version

restic 0.18.0 compiled with go1.24.1 on darwin/arm64

What should restic do differently? Which functionality do you think we should add?

Improve/extend --exclude-cloud-files to also work on macOS/darwin with iCloud files.
Prior work that implemented this for windows:

• Ignore Cloud files which are not synced locally #3697
• backup: allow excluding online-only cloud files #4990

What are you trying to do? What problem would this solve?

Be able to ignore iCloud files that are only stored in the cloud and not locally.
(A reason to write/learn some go code and provide something to restic)

Did restic help you today? Did it make you happy in any way?

Every day! Recently moved to a cron job (launchd agent) for restic. Had it for 3 years running manually but thought this should be automated. Now my system gets daily backups instead of just every 2 weeks when I remember to run restic.

Additional info

I wrote a small POC for this change. If no one is already working on it I would try to follow the PR that implemented this feature on Windows

PR that implements this feature

#5370

POC Code

package main

import (
	"fmt"
	"os"
	"syscall"

	"golang.org/x/sys/unix"
)

func main() {
	isCloudFile("a")
	isCloudFile("b")
}

func isCloudFile(filePath string) {
	fileInfo, _ := os.Stat(filePath)
	v, ok := fileInfo.Sys().(*syscall.Stat_t)
	if !ok {
		fmt.Println("Can't get flags of file", filePath)
	}
	const mask uint32 = unix.SF_DATALESS // 0x40000000
	if v.Flags&mask == mask {
		fmt.Println(filePath, "is cloud file")
	} else {
		fmt.Println(filePath, "is normal file")
	}
}