What version of tinygo are you using? 0.23 should have Rename, Chmod, and Symlink.

Here's the pull request that added Rename:
#2481

You could contribute stubs for Chown and Chtimes, they're not that hard to write!
Here's an example of how to write a stub:

#2313

thank you @dkegel-fastly !

Symlink not declared in version 0.26 also in the example from @etsai-stripe which is 0.23 and supposed to have the implementation. What are we missing?

tinygo version 0.26.0 linux/amd64 (using go version go1.19.2 and LLVM version 14.0.0)

Seems like it's been implemented for unix only while the wasm target is not covered by file_other.go

Here is what happens if I copy the Symlink implementation from https://github.com/tinygo-org/tinygo/blob/release/src/os/file_unix.go

tinygo build -o web.wasm -target wasm main.go
undeclared name: ignoringEINTR
Symlink not declared by package syscall

And with WASI:

tinygo build -wasm-abi=generic -target=wasi -o web.wasm main.go
../../../../../usr/lib/go-1.19/src/os/user/cgo_lookup_unix.go:18:6: not implemented: build constraints in #cgo line
../../../../../usr/lib/go-1.19/src/os/user/cgo_lookup_unix.go:21:10: fatal: 'pwd.h' file not found
../../../../../usr/lib/go-1.19/src/os/user/getgrouplist_unix.go:12:10: fatal: 'grp.h' file not found

Depends on WASI: golang/go#31105

I haven't checked whether wasi really supports symlink, but I guess it could at least be a stub...

I haven't checked whether wasi really supports symlink, but I guess it could at least be a stub...

https://docs.rs/wasi/0.9.0+wasi-snapshot-preview1/wasi/fn.path_symlink.html

I can't see any of the os packages related to file that is targeting a wasi build though. I have seen the implementation in file_unix.go and noticed that file_other.go is targeting wasm but not wasi. Where should I look for that in tinygo?