Comment by yencabulator a day ago
That sounds like your kernel refusing to create that file, nothing to do with Go.
$ cat main.go
package main
import (
"log"
"os"
)
func main() {
f, err := os.Create("\xbd\xb2\x3d\xbc\x20\xe2\x8c\x98")
if err != nil {
log.Fatalf("create: %v", err)
}
_ = f
}
$ go run .
$ ls -1
''$'\275\262''='$'\274'' ⌘'
go.mod
main.goI believe macOS forces UTF-8 filenames and normalizes them to something near-but-not-quite Unicode NFD.
Windows doing something similar wouldn't surprise me at all. I believe NTFS internally stores filenames as UTF-16, so enforcing UTF-8 at the API boundary sounds likely.
I'm confused, so is Go restricted to UTF-8 only filenames, because it can read/write arbitrary byte sequences (which is what string can hold), which should be sufficient for dealing with other encodings?
Go is not restricted, since strings are only conventionally utf-8 but not restricted to that.
Then I am having a hard time understanding the issue in the post, it seems pretty vague, is there any idea what specific issue is happening, is it how they've used Go, or does Go have an inherent implementation issue, specifically these lines:
If you stuff random binary data into a string, Go just steams along, as described in this post.
Over the decades I have lost data to tools skipping non-UTF-8 filenames. I should not be blamed for having files that were named before UTF-8 existed.
Let me translate: "I have decided to not like something so now I associate miscellaneous previous negative experiences with it"
> That sounds like your kernel refusing to create that file
Yes, that was my assumption when bash et al also had problems with it.
I've posted a longer explanation in https://news.ycombinator.com/item?id=44991638. I'm interested to hear which kernel and which firesystem zimpenfish is using that has this problem.