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fix: use BSD tools over GNU stdenv in devshell PATH #41

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graham merged 1 commit from fix/bsd-tools-devshell into main 2026-10-18 17:23:11 +00:00
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graham commented 2026-10-18 17:22:47 +00:00
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mkShell prepends stdenv's tools (GNU coreutils, gnugrep, gnused, gawk, findutils, diffutils, patch, gnutar, gzip, bzip2, xz) to PATH, which shadowed macOS builtins like cp/grep/sed with incompatible GNU versions. The shellHook now splits PATH on ':' and drops those stdenv store paths; nix-provided project deps (elixir, postgres, etc.) are unaffected. Verified via direnv exec . sh -c 'command -v cp' resolving to /bin/cp.

mkShell prepends stdenv's tools (GNU coreutils, gnugrep, gnused, gawk, findutils, diffutils, patch, gnutar, gzip, bzip2, xz) to PATH, which shadowed macOS builtins like cp/grep/sed with incompatible GNU versions. The shellHook now splits PATH on ':' and drops those stdenv store paths; nix-provided project deps (elixir, postgres, etc.) are unaffected. Verified via `direnv exec . sh -c 'command -v cp'` resolving to /bin/cp.
fix: use BSD tools over GNU stdenv in devshell PATH
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ed6023d69b
 
mkShell prepends stdenv's tools (coreutils, gnugrep, gnused, gawk,
findutils, diffutils, patch, gnutar, gzip, bzip2, xz) to PATH, which
shadowed macOS builtins like cp/grep/sed with incompatible GNU versions.

The shellHook now splits PATH on ':' and drops those stdenv store paths,
so BSD tools win for interactive use while nix-provided project deps
(elixir, postgres, etc.) are unaffected.
graham merged commit 181e414f3e into main 2026-10-18 17:23:11 +00:00
graham deleted branch fix/bsd-tools-devshell 2026-10-18 17:23:11 +00:00
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Priority: fix now. Data loss, credential exposure, silently wrong numbers, or a surface that cannot be used.

  
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