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fix: derive the RDMA cgo link line instead of maintaining it by hand - #519
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scripts/rdma-cgo-libs.txt listed libminio's transitive archives by hand, so it went stale silently. minio-cpp 1.0.0 swapped curlpp for cpp-httplib (adding brotli) and stopped taking vcpkg's zlib; nothing failed until a clean runner could not find -lcurlpp, and a release host still holding the 0.6.0 archives reported green while CI was red. minio-cpp now declares its private dependencies in miniocpp.pc, so scripts/rdma-link-libs.sh derives the list with pkg-config and the file is gone. Only the -l names and -pthread are taken: pkg-config's -L points into the vcpkg tree the prefix was built from, which on a cross build is the wrong architecture, and every caller already passes -L<prefix>/lib. Taking names only is what makes one derivation serve both architectures. goreleaser cannot run a command and its checkout is wiped per run, so provisioning writes the derived line into each prefix as lib/warp-rdma-cgo-libs.txt and qreleaser.yaml reads it from there. A prefix that was never provisioned now fails loudly at template time, and verify_prefix asserts the file is present. The list still feeds static_libs(), so a dependency minio-cpp newly pulls in appears there and verify_prefix demands an archive for it -- the check that was missing when the 1.0.0 shift went unnoticed. minio-cpp is pinned to a commit because the pkg-config fix landed after v1.0.0; move it to v1.0.1 once that is cut.
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Included review availability: Your plan provides up to 4 included reviews per hour; 3 remain after this review. 📝 WalkthroughWalkthroughThe RDMA build now derives linker flags from ChangesRDMA linking
Estimated code review effort: 3 (Moderate) | ~20 minutes Sequence Diagram(s)sequenceDiagram
participant Build
participant rdma-link-libs.sh
participant miniocpp.pc
participant InstallPrefix
Build->>rdma-link-libs.sh: derive linker flags
rdma-link-libs.sh->>miniocpp.pc: query static dependencies
miniocpp.pc-->>rdma-link-libs.sh: return libraries and pthread
rdma-link-libs.sh->>InstallPrefix: write warp-rdma-cgo-libs.txt
Build->>InstallPrefix: read linker flags
Merge Risk: ⚪ Minimal · up to RDMA linker flags are now generated per prefix from miniocpp metadata, with invalid generated files rejected. Reported amd64 and arm64 provisioning and smoke-link checks pass, so no merge-blocking risk remains. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Inline comments:
In `@scripts/setup-rdma-release-host.sh`:
- Around line 513-514: Update the link-file generation flow around
rdma-link-libs.sh and as_root tee to write into a temporary file under
${prefix}/lib, ensure the derivation succeeds, then atomically rename the
temporary file to ${prefix}/lib/${LINK_LIBS_NAME}; preserve the existing
destination when derivation fails and clean up any temporary file.
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📒 Files selected for processing (8)
.github/workflows/go-rdma.yml.goreleaser/qreleaser.yamlRDMA.mdscripts/build-rdma.shscripts/rdma-cgo-libs.txtscripts/rdma-cross/triplets/arm64-linux.cmakescripts/rdma-link-libs.shscripts/setup-rdma-release-host.sh
💤 Files with no reviewable changes (1)
- scripts/rdma-cgo-libs.txt
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Piping rdma-link-libs.sh straight into tee let tee create the file before the derivation's exit status was known, so a failure left an empty list where a good one had been. Both guards tested -f, which an empty file satisfies, so static_libs then yielded nothing and every derived archive check in verify_prefix became vacuous while still reporting the prefix as satisfying the link line. Derive into a variable first, so a failure never opens the file, and test -s rather than -f so an empty list is treated as no list at all.
Review feedback addressedApplied 1 fix across 1 file from 1 review finding. Files changed:
Commit: A failed derivation could truncate a previously good link list, and because both Deferred: none. |
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Description
scripts/rdma-cgo-libs.txtlisted libminio's transitive archives by hand, so it went stale silently. minio-cpp 1.0.0 swappedcurlpp for cpp-httplib (adding brotli) and stopped taking vcpkg's zlib — nothing failed until a clean runner could not find
-lcurlpp, while a release host still holding the 0.6.0 archives reported green.minio-cpp now declares its private dependencies in
miniocpp.pc(minio/minio-cpp#265), soscripts/rdma-link-libs.shderivesthe list with pkg-config and the tracked file is gone.
Only the
-lnames and-pthreadare taken. pkg-config's-Lpoints into the vcpkg tree the prefix was built from, whichon a cross build is the wrong architecture; every caller already passes
-L<prefix>/lib, where the archives are collected.Taking names only is what makes one derivation serve both architectures — the derived list is byte-identical for amd64 and
arm64.
goreleaser cannot run a command, and its checkout is wiped per run, so provisioning writes the derived line into each
prefix as
lib/warp-rdma-cgo-libs.txtandqreleaser.yamlreads it from there withmustReadFile. A prefix that was neverprovisioned now fails loudly at template time instead of linking with an empty library list, and
verify_prefixasserts thefile is present.
The list still feeds
static_libs(), so a dependency minio-cpp newly pulls in appears there andverify_prefixdemands anarchive for it. That is the check that was missing when the 1.0.0 shift went unnoticed — note it does not retire the
stdc++ | m | dl | pthread | z | s3rdmaexclusion list, which is still hand-maintained knowledge about which names aresystem/toolchain rather than archives.
Motivation
Bumping to minio-cpp 1.0.0 (#518) produced three separate build failures that all traced to this file being hand-written.
Deriving it removes that class of breakage.
How to test
Ran the real provisioning end to end on the release host into a scratch prefix (
--prefix), both architectures, at the pinnedcommit:
Derived list, identical for both prefixes:
That is the same set the deleted file carried, with
-pthreadin place of-lpthread.readelf -don both smoke binariesshows only what the package bundles or the host supplies:
Mutations, both load-bearing:
warp-rdma-cgo-libs.txtand re-running--verify-onlygoes from exit 0 to exit 1 withMISSING: .../warp-rdma-cgo-libs.txt (amd64, needed by qreleaser.yaml).goreleaser buildwith a fixture prefix: it renders when the file exists,and fails with
template: failed to apply "CGO_LDFLAGS=..." : no such file or directorywhen it does not.Types of changes
Checklist
three pins to v1.0.1 once it is cut.
/usr/localis still on v1.0.0 and has nowarp-rdma-cgo-libs.txt, so a release would fail at template time untilsetup-rdma-release-host.shis re-runSummary by CodeRabbit
Build Improvements
Documentation