Nix-hash command giving wrong hash

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1

when trying to install timonwong.shellcheck vscodium extension using this script nixconf/home/shellScripts/vscInstallExt/main.sh at ecfc5976a3dec6bde0a4017e0549f893b3e4c140 · rsa17826/nixconf · GitHub, modified from this one nixpkgs/pkgs/applications/editors/vscode/extensions/update_installed_exts.sh at 106eb93cbb9d4e4726bf6bc367a3114f7ed6b32f · NixOS/nixpkgs · GitHub, which i assume would be using the correct calls as its from the nixpkgs repo, calls HASH=$(nix-hash --flat --sri --type sha256 “$EXTTMP/$N.zip”) when rebuilding i get a hash mismatch in fixed-output derivation error

error: hash mismatch in fixed-output derivation ‘/nix/store/kwdqi1l53qism2ani8xnplrc2g7l646a-timonwong-shellcheck.vsix.drv’:
specified: sha256-ZWlScP7eWMGKzS+PCTMKnt7EO8QLzLHJF2a6gJXIoKI=
got: sha256-u0KvmW4iMjxYfLI/wKxHBqv47UYtbib9fxKsCjUiu7A=

what do i do to get the script to give the correct hash for the extension

2

Well, I presume it’s using the unzipped file and also normalizing it. So, honestly, trying to use prefetch scripts is going to be a waste of time. Just rebuild, get the hash from the error, and use that.