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fix: check for nix flake support before trying to load flake #26188

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fix: check for nix flake support before trying to load flake #26188

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13 changes: 11 additions & 2 deletions .envrc
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Original file line number Diff line number Diff line change
@@ -1,5 +1,14 @@
source_up_if_exists
if command -v nix >/dev/null 2>&1; then
use flake

if has nix; then
if nix --extra-experimental-features "nix-command flakes" flake --help >/dev/null 2>&1; then
use flake
else
nix_description=$(
nix --version 2>/dev/null || printf "Nix with an unknown version"
)
log_status "WARNING: Detected $nix_description, which does not support flakes; skipping the flake-based development environment"
fi
fi

source_env_if_exists .envrc.local
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