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mars(kittentts): patch venv .so RPATHs so numpy/onnxruntime load

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The venv's python is Nix python313 (also inside the container, via the
/nix/store mount), whose loader never searches /usr/lib, so PyPI manylinux
wheels failed with "libstdc++.so.6: cannot open shared object file".
auto-patchelf the staged venv against gcc-lib + zlib; RPATHs are store
paths, so the delivered copy works in the container too. The lib paths join
the input hash so a toolchain bump rebuilds.

Verified locally with mars's exact uv/python313: construct offline from the
staged hub layout and synthesize with voice "Luna".

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
darman
2026-09-19 15:05:01 +02:00
co-authored by Claude Opus 5
parent 812c1af1f2
commit 22caa06904
1 changed files with 9 additions and 4 deletions
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hosts/mars/hermes-agent.nix
+9 -4
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@@ -89,6 +89,7 @@ let
kittenttsWheelFile = "${pkgs.linkFarm "kittentts-wheel" { kittenttsWheelFile = "${pkgs.linkFarm "kittentts-wheel" {
"kittentts-0.8.1-py3-none-any.whl" = kittenttsWheel; "kittentts-0.8.1-py3-none-any.whl" = kittenttsWheel;
}}/kittentts-0.8.1-py3-none-any.whl"; }}/kittentts-0.8.1-py3-none-any.whl";
kittenttsRuntimeLibs = "${pkgs.stdenv.cc.cc.lib}/lib ${pkgs.zlib}/lib";
kittenttsReqs = pkgs.writeText "kittentts-requirements.txt" ( kittenttsReqs = pkgs.writeText "kittentts-requirements.txt" (
builtins.readFile ./kittentts/requirements.txt builtins.readFile ./kittentts/requirements.txt
); );
@@ -539,7 +540,7 @@ in
]; ];
requires = [ "hermes-agent-prepare-dirs.service" ]; requires = [ "hermes-agent-prepare-dirs.service" ];
# diffutils: `cmp` in the fast path; missing, it silently re-delivers every boot. # diffutils: `cmp` in the fast path; missing, it silently re-delivers every boot.
path = [ pkgs.uv pkgs.coreutils pkgs.diffutils pkgs.util-linux ]; path = [ pkgs.uv pkgs.coreutils pkgs.diffutils pkgs.util-linux pkgs.auto-patchelf pkgs.patchelf ];
serviceConfig = { serviceConfig = {
Type = "oneshot"; Type = "oneshot";
TimeoutStartSec = 600; TimeoutStartSec = 600;
@@ -571,9 +572,9 @@ in
# Input key: requirements + wheel + stub + model files + resolved script. # Input key: requirements + wheel + stub + model files + resolved script.
# Review #5 — a miss on the old requirements-only stamp let a changed # Review #5 — a miss on the old requirements-only stamp let a changed
# wheel/stub/model URL keep running the stale install forever. # wheel/stub/model URL keep running the stale install forever.
inputHash=$(cat ${kittenttsReqs} ${kittenttsWheel} ${kittenttsStub} \ inputHash=$({ cat ${kittenttsReqs} ${kittenttsWheel} ${kittenttsStub} \
${kittenttsModelOnnx} ${kittenttsModelVoices} ${kittenttsModelConfig} \ ${kittenttsModelOnnx} ${kittenttsModelVoices} ${kittenttsModelConfig}
| sha256sum | cut -d' ' -f1) echo ${kittenttsRuntimeLibs}; } | sha256sum | cut -d' ' -f1)
stampFile=$stageDir/provision.stamp stampFile=$stageDir/provision.stamp
# Idempotent early exit: stamp matches the full input hash, staging venv # Idempotent early exit: stamp matches the full input hash, staging venv
@@ -631,6 +632,10 @@ in
siteDir=$("$stageVenv/bin/python" -c 'import sysconfig; print(sysconfig.get_paths()["purelib"])') siteDir=$("$stageVenv/bin/python" -c 'import sysconfig; print(sysconfig.get_paths()["purelib"])')
cp ${kittenttsStub} "$siteDir/kitten_tts_stub.py" cp ${kittenttsStub} "$siteDir/kitten_tts_stub.py"
printf 'import kitten_tts_stub\n' > "$siteDir/zz-kitten-stub.pth" printf 'import kitten_tts_stub\n' > "$siteDir/zz-kitten-stub.pth"
# PyPI manylinux .so's (numpy, onnxruntime) need libstdc++, which the
# Nix loader never finds, on the host or in the container.
auto-patchelf --paths "$stageVenv" --libs ${kittenttsRuntimeLibs}
fi fi
# Stage the full delivered hub tree (exact hf_hub_download layout: # Stage the full delivered hub tree (exact hf_hub_download layout: