Backport #11610 to 2.20 maintenance #11686
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This patch has been manually adapted from lix-project/lix@14dc84e Tested with: $ NIX_SSL_CERT_FILE=$(nix-build '<nixpkgs>' -A cacert)/etc/ssl/certs/ca-bundle.crt nix-build --store $(mktemp -d) -E 'import <nix/fetchurl.nix> { url = https://google.com; }' warning: found empty hash, assuming 'sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=' this derivation will be built: /nix/store/4qljhy0jj2b0abjzpsbyarpia1bqylwc-google.com.drv building '/nix/store/4qljhy0jj2b0abjzpsbyarpia1bqylwc-google.com.drv'... error: … writing file '/nix/store/0zynn4n8yx59bczy1mgh1lq2rnprvvrc-google.com' error: unable to download 'https://google.com': Problem with the SSL CA cert (path? access rights?) (77) error: builder for '/nix/store/4qljhy0jj2b0abjzpsbyarpia1bqylwc-google.com.drv' failed with exit code 1 Now returns: nix-env % NIX_SSL_CERT_FILE=$(nix-build '<nixpkgs>' -A cacert)/etc/ssl/certs/ca-bundle.crt nix-build --store $(mktemp -d) -E 'import <nix/fetchurl.nix> { url = https://google.com; }' this derivation will be built: /nix/store/4qljhy0jj2b0abjzpsbyarpia1bqylwc-google.com.drv building '/nix/store/4qljhy0jj2b0abjzpsbyarpia1bqylwc-google.com.drv'... error: hash mismatch in fixed-output derivation '/nix/store/4qljhy0jj2b0abjzpsbyarpia1bqylwc-google.com.drv': specified: sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= got: sha256-5xXEhGtnRdopaUTqaz2M1o2NE7ovhU0SjcSOPwntqwY= (cherry picked from commit 1fbdf40)
(cherry picked from commit de9946c)
#10456 fixed the addition of symlink store paths to the sandbox, but also made it so that the hardcoded sandbox paths (like `/etc/hosts`) were now bind-mounted without following the possible symlinks. This made these files unreadable if there were symlinks (because the sandbox would now contain a symlink to an unreachable file rather than the underlying file). In particular, this broke FOD derivations on NixOS as `/etc/hosts` is a symlink there. Fix that by canonicalizing all these hardcoded sandbox paths before adding them to the sandbox. (cherry picked from commit acbb152)
(cherry picked from commit cef677d)
(cherry picked from commit 3e5bf90)
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This pull request has been mentioned on NixOS Discourse. There might be relevant details there: https://discourse.nixos.org/t/2024-10-14-nix-team-meeting-minutes-186/54352/1 |
This was referenced Oct 21, 2024
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backport 2.19-maintenance
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