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shlevy / nix-exec

Run programs defined in nix expressions
MIT License
50 stars 6 forks source link

fetchgit: chmod -w breaks subsequent mv #2

Closed proger closed 9 years ago

proger commented 9 years ago 
/nix/store/rc94la2h0pwkshbgmd7kz5nhklkdqyr2-coreutils-8.21/bin/mv: cannot move ‘/tank/proger/.cache/fetchgit/archives/nixpkgs/true/c8be814f254311ca454844bdd34fd7206e801399/nixpkgs.WPcG9d’ to ‘/tank/proger/.cache/fetchgit/archives/nixpkgs/true/c8be814f254311ca454844bdd34fd7206e801399/nixpkgs’: Permission denied
/nix/store/rc94la2h0pwkshbgmd7kz5nhklkdqyr2-coreutils-8.21/bin/mv: cannot move ‘/tank/proger/.cache/fetchgit/archives/nixpkgs/true/499c51016ef67bd0b158528dbff17ed6ecedd78b/nixpkgs.JV6O8G’ to ‘/tank/proger/.cache/fetchgit/archives/nixpkgs/true/499c51016ef67bd0b158528dbff17ed6ecedd78b/nixpkgs’: Permission denied
proger commented 9 years ago

why do you want to make it not writable?

shlevy commented 9 years ago

Because it's semantically a write-once cache and it's nice to get a small extra assurance of that.