--etag-save doesn't respect --create-dirs

[tamird]

I did this

$ curl -fSL --create-dirs --create-dirs --output-dir test/.tmp/debian-kernels/arm64 --remote-name-all --etag-compare test/.tmp/debian-kernels/arm64/linux-image-6.1.0-28-cloud-arm64-unsigned_6.1.119-1_arm64.deb.etag --etag-save test/.tmp/debian-kernels/arm64/linux-image-6.1.0-28-cloud-arm64-unsigned_6.1.119-1_arm64.deb.etag https://mirrors.wikimedia.org/debian/pool/main/l/linux/linux-image-6.1.0-28-cloud-arm64-unsigned_6.1.119-1_arm64.deb
Warning: Failed creating file for saving etags: "test/.tmp/debian-kernels/arm64/linux-image-6.1.0-28-cloud-arm64-unsigned_6.1.119-1_arm64.deb.etag". Skip this transfer
curl: no transfer performed

I expected the following

Success.

curl/libcurl version

curl 8.11.1 (aarch64-apple-darwin24.1.0) libcurl/8.11.1 OpenSSL/3.4.0 (SecureTransport) zlib/1.2.12 brotli/1.1.0 zstd/1.5.6 AppleIDN libssh2/1.11.1 nghttp2/1.64.0 librtmp/2.3
Release-Date: 2024-12-11
Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns ldap ldaps mqtt pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp ws wss
Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz MultiSSL NTLM SPNEGO SSL threadsafe TLS-SRP UnixSockets zstd

operating system

Darwin tamird-mac 24.1.0 Darwin Kernel Version 24.1.0: Thu Oct 10 21:02:45 PDT 2024; root:xnu-11215.41.3~2/RELEASE_ARM64_T8112 arm64

[bagder]

I will just mention that the documentation for --create-dirs explicitly says "When used in conjunction with the --output option", so it should not be a surprise and it is thus also not a bug.

Could still be worth supporting.

[tamird]

Eh. It's still a bug. First, create-dirs in practice works without --output if --remote-name or --remote-name-all is used. Second, even if you do use --output, the presence of --etag-save breaks the whole invocation, even when --output and --etag-save point to the same directory.

[bagder]

That's because you provide a path that can't be used.