bug(install): install.sh prints gawk "escape sequence \. treated as plain ." warnings on RPM hosts
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評估
研究方向
從 install.sh 開始，追蹤 find_rpm_asset，查看它的備援正規表示式如何傳遞給 awk。接著閱讀 tasks/scripts/test-install-sh.sh，並執行其中針對 gawk 的涵蓋率測試。完成條件是：RPM 安裝不會產生 awk 警告、備援正規表示式中的兩個點都按字面匹配，且 stderr 上出現任何輸出時測試都會失敗。
由索引模型根據 Issue 內容生成。
描述
User Story
I use OpenShell (0.1.3, checked against 0.1.5) on RHEL 9, and I install it with the published install.sh. Each RPM install prints three gawk warnings in the middle of the installer output. Users ask whether the install failed.
Problem Statement
find_rpm_asset builds its fallback regexes as "^openshell-[0-9].*\\.${_arch}\\.rpm$" (and the same for the gateway and prover packages). It passes them to awk with -v fallback_re=.... awk processes escape sequences in -v values, so the \. reaches awk as an escape:
- gawk warns
escape sequence '\.' treated as plain '.'once per regex. - The dot then matches any character instead of a literal dot.
Impact / Why This Matters
- Every RPM install shows three warnings that look like errors.
- The fallback match is looser than intended.
- There is no workaround for users of the published script. A wrapper that pins the script by digest cannot change it.
Acceptance Criteria
- An RPM install on RHEL 9 (gawk) prints no awk warnings.
- The fallback regex matches a literal
.before the arch and beforerpm. -
tasks/scripts/test-install-sh.shcoversfind_rpm_assetunder gawk and fails on any stderr output.
Reproduction Steps
- On RHEL 9, run
curl -fsSL https://raw.githubusercontent.com/NVIDIA/OpenShell/v0.1.5/install.sh | sh(RPM path).
Expected: no awk warnings.
Actual: three gawk warnings.
Suggested UX (if applicable)
None.
Environment
- OpenShell
install.shand checksum-verified RPM packages from v0.1.5. - RHEL 9.8 UBI RPM container on a RHEL 9.8 host, kernel 5.14.0-687.45.1.el9_8.x86_64; gawk 5.1.0; Docker 29.8.1; Podman 5.8.2. Host KVM was present but not used for this installer repro.
Logs
awk: warning: escape sequence `\.' treated as plain `.'
awk: warning: escape sequence `\.' treated as plain `.'
awk: warning: escape sequence `\.' treated as plain `.'
openshell: installed openshell RPM packages from v0.1.5
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