pyrox.dev
top-level: Ignore Emacs lock files when looking for overlays
While an Emacs user edits a file foo.nix, Emacs creates a lock file
.#foo.nix as a broken symlink to USER@HOSTNAME.PID:TIMESTAMP.
https://www.gnu.org/software/emacs/manual/html_node/emacs/Interlocking.html
If the file is in the overlays directory, this breaks all nixpkgs
imports with this error, until the user saves the file:
error: getting status of '/home/user/.config/nixpkgs/overlays/user@hostname.683628:1654370645': No such file or directory
Fix this by ignoring filenames beginning with .# in overlay
directories.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
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pkgs/top-level/impure.nix
+6
-1
pkgs/top-level/impure.nix
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# it's a directory, so the set of overlays from the directory, ordered lexicographically
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let content = builtins.readDir path; in
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map (n: import (path + ("/" + n)))
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-
(builtins.filter (n: builtins.match ".*\\.nix" n != null || builtins.pathExists (path + ("/" + n + "/default.nix")))
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+
(builtins.filter
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(n:
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(builtins.match ".*\\.nix" n != null &&
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# ignore Emacs lock files (.#foo.nix)
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builtins.match "\\.#.*" n == null) ||
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builtins.pathExists (path + ("/" + n + "/default.nix")))
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(builtins.attrNames content))
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else
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# it's a file, so the result is the contents of the file itself