build: clear Go cache between platform builds in release script
What the developer wrote
Authored by Olaoluwa Osuntokun
build: clear Go cache between platform builds in release script
In this commit, we add a call to "go clean -cache" after each platform
build in the release script to prevent the Go build cache from accumulating
unbounded disk space during the sequential 15-platform build process.
When building for multiple platforms in sequence with "go build -v", Go
creates intermediate build artifacts and caches compiled packages for each
target platform. While this caching improves build performance within a
single platform build, it causes the cache to grow substantially when
building for many platforms sequentially. With 15 different platform/
architecture combinations, each with their own cached artifacts, this
accumulation was contributing to the disk space exhaustion.
By clearing the build cache after each platform completes, we prevent this
unbounded growth while still allowing each individual platform build to
benefit from caching during its own compilation. The module cache is
preserved (we only clear the build cache), so dependencies don't need to be
re-downloaded between platforms.
What changed, and why it matters
This commit changes the release build script to clear Go's temporary build cache after compiling for each platform. It is a routine build-hygiene fix to prevent disk space from running out during long release builds. There is no security vulnerability here.
No security action needed. Treat as normal build/maintenance improvement.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The patch adds go clean -cache after each cross-compilation step in scripts/release.sh. This removes per-platform intermediate build artifacts while keeping the module cache intact. It addresses disk-space growth during the 15-platform release process and has no effect on runtime behavior, cryptographic operations, or produced binaries.
Changed components
scripts/release.shInspect captured patch +3 / −0
diff --git a/scripts/release.sh b/scripts/release.sh
index 3ae8c1e..56b7c3c 100755
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -193,6 +193,9 @@ required Go version ($goversion)."
env CGO_ENABLED=0 GOOS=$os GOARCH=$arch GOARM=$arm go build -v -trimpath -ldflags="${ldflags}" -tags="${buildtags}" ${PKG}/cmd/lncli
popd
+ # Clear Go build cache to prevent disk space issues during multi-platform builds.
+ go clean -cache
+
# Add the hashes for the individual binaries as well for easy verification
# of a single installed binary.
shasum -a 256 "${dir}/"* >> "manifest-$tag.txt"
Why this scored 15/100
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