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busted loads _insight.so from ~/.luarocks/lib first, not build/ — must copy .so after rebuild
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| name | fix-busted-cached-so |
| description | busted loads _insight.so from ~/.luarocks/lib first, not build/ — must copy .so after rebuild |
| source | auto-skill |
| extracted_at | 2026-06-07T01:46:20.559Z |
After rebuilding the Lua binding (make insight_lua), busted tests still use
the OLD .so file. Direct luajit tests work fine, but busted fails.
Root cause: busted's launcher script (~/.luarocks/bin/busted) sets
package.cpath to include ~/.luarocks/lib/lua/5.1/?.so FIRST. Even with
LUA_CPATH="build/bindings/lua/?.so;;", the luarocks path takes precedence
because the launcher explicitly sets package.cpath.
Symptom: Direct luajit test passes, but busted test fails with old behavior.
# Check which _insight.so files exist and their timestamps
ls -la bindings/lua/_insight.so build/bindings/lua/_insight.so ~/.luarocks/lib/lua/5.1/_insight.so
# Check if new code is in the .so
strings build/bindings/lua/_insight.so | grep "your_new_string"
strings ~/.luarocks/lib/lua/5.1/_insight.so | grep "your_new_string"
After rebuilding, copy the new .so to the luarocks lib directory:
# Rebuild
make -j24 insight_lua
# Copy to luarocks lib (busted loads from here first)
cp build/bindings/lua/_insight.so ~/.luarocks/lib/lua/5.1/_insight.so
cp build/backends/cpu/libinsight_cpu_backend.so ~/.luarocks/lib/lua/5.1/libinsight_cpu_backend.so
If you don't want to copy, you can try setting LUA_CPATH before the busted
launcher's package.cpath assignment. But this is fragile — copying is more
reliable.
~/.luarocks/bin/busted — launcher script, sets package.cpath~/.luarocks/lib/lua/5.1/_insight.so — cached bindingbuild/bindings/lua/_insight.so — freshly built bindingbindings/lua/_insight.so — copy target (used by LUA_CPATH="bindings/lua/?.so;;")Add a post-build step to CMakeLists.txt that copies the .so to the luarocks lib directory automatically.
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