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Nix: speed up gateway builds and enforce cache-only CI consumers #57

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a691c74
Nix: speed up gateway builds and add cache-only safeguards
gumadeiras Feb 16, 2026
9dc336c
nix: harden gateway symlink and smoke scripts
gumadeiras Feb 16, 2026
1d88dce
🤖 nix: trim PR #57 to packaging-only speedups
joshp123 Feb 16, 2026
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1 change: 1 addition & 0 deletions nix/packages/openclaw-gateway.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,7 @@ stdenv.mkDerivation (finalAttrs: {
postPatch = "${../scripts/gateway-postpatch.sh}";
buildPhase = "${../scripts/gateway-build.sh}";
installPhase = "${../scripts/gateway-install.sh}";
dontFixup = true;
dontStrip = true;
dontPatchShebangs = true;

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25 changes: 24 additions & 1 deletion nix/scripts/gateway-install.sh
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Expand Up @@ -17,9 +17,30 @@ log_step() {
printf '>> [timing] %s: %ss\n' "$name" "$((end - start))" >&2
}

check_no_broken_symlinks() {
root="$1"
if [ ! -d "$root" ]; then
return 0
fi

broken_tmp="$(mktemp)"
# Portable and faster than `find ... -exec test -e {} \;` on large trees.
find "$root" -type l -print | while IFS= read -r link; do
[ -e "$link" ] || printf '%s\n' "$link"
done > "$broken_tmp"
if [ -s "$broken_tmp" ]; then
echo "dangling symlinks found under $root" >&2
cat "$broken_tmp" >&2
rm -f "$broken_tmp"
return 1
fi
rm -f "$broken_tmp"
}

mkdir -p "$out/lib/openclaw" "$out/bin"

log_step "copy build outputs" cp -r dist node_modules package.json "$out/lib/openclaw/"
# Build dir is ephemeral in Nix; moving avoids an expensive deep copy of node_modules.
log_step "move build outputs" mv dist node_modules package.json "$out/lib/openclaw/"
if [ -d extensions ]; then
log_step "copy extensions" cp -r extensions "$out/lib/openclaw/"
fi
Expand Down Expand Up @@ -94,4 +115,6 @@ if [ -n "$hasown_src" ]; then
fi
fi

log_step "validate node_modules symlinks" check_no_broken_symlinks "$out/lib/openclaw/node_modules"

bash -e -c '. "$STDENV_SETUP"; makeWrapper "$NODE_BIN" "$out/bin/openclaw" --add-flags "$out/lib/openclaw/dist/index.js" --set-default OPENCLAW_NIX_MODE "1"'
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