fix(ci): ignore duckdb/duckplyr build failures on arm64, bump auxiliary workflows to ubuntu-26.04 (#2493)

Co-authored-by: Claude <noreply@anthropic.com>

Author: krlmlr

.github/versions-matrix.R

@@ -7,7 +7,7 @@ list(
   # updater, which would otherwise run the test suite a second time against
   # the backend and accept backend-specific snapshots.
   data.frame(
-    os = "ubuntu-22.04",
+    os = "ubuntu-26.04",
     r = "release",
     env = paste0(
       "DM_TEST_SRC=",
@@ -36,7 +36,7 @@ list(
   # and tests the instrumented sources. SKIP_UPDATE_SNAPSHOTS opts out of the
   # snapshot updater, which would otherwise run the instrumented tests twice.
   data.frame(
-    os = "ubuntu-22.04",
+    os = "ubuntu-26.04",
     r = "release",
     env = "DM_VALIDATE=true\nSKIP_UPDATE_SNAPSHOTS=true",
     covr = "true",

.github/workflows/claude.yml

@@ -8,9 +8,16 @@ runs:
   using: "composite"
   steps:
     - name: Get extra packages
+      # Read with read.dcf(), not `grep | cut`: a DCF value may wrap onto
+      # indented continuation lines, and `grep` only ever returns the first
+      # line -- which is blank exactly when the field wraps, as a multi-package
+      # value normally does. That silently yielded an empty string, so every
+      # reference in this field went unread, including the
+      # `=?ignore-build-errors` parameters that keep a dependency which cannot
+      # be built from source on some runner from failing the whole check.
       id: get-extra
       run: |
-        set -x
-        packages=$( ( grep Config/gha/extra-packages DESCRIPTION || true ) | cut -d " " -f 2)
-        echo packages=$packages >> $GITHUB_OUTPUT
-      shell: bash
+        x <- read.dcf("DESCRIPTION", fields = "Config/gha/extra-packages")[1, 1]
+        packages <- if (is.na(x)) "" else gsub("[[:space:]]+", " ", trimws(x))
+        cat("packages=", packages, "\n", sep = "", file = Sys.getenv("GITHUB_OUTPUT"), append = TRUE)
+      shell: Rscript {0}

.github/workflows/get-extra/action.yml

@@ -126,11 +126,7 @@ runs:
 
     - name: Read `Config/gha/extra-packages` from DESCRIPTION
       id: get-extra
-      run: |
-        set -x
-        packages=$( ( grep Config/gha/extra-packages DESCRIPTION || true ) | cut -d " " -f 2-)
-        echo packages=$packages >> $GITHUB_OUTPUT
-      shell: bash
+      uses: ./.github/workflows/get-extra
 
     - name: Let sudo keep R library env vars (ubuntu-26.04 forbids `sudo -E`)
       # r-lib/actions/setup-r-dependencies installs pak with

.github/workflows/install/action.yml

@@ -18,7 +18,7 @@ concurrency:
 
 jobs:
   unblock:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     steps:
       - uses: actions/checkout@v4
 

.github/workflows/unblock.yaml

@@ -115,7 +115,23 @@ Config/Needs/website:
     whisker,
     xml2
 Config/Needs/check: anthonynorth/roxyglobals
-VignetteBuilder: 
+Config/gha/extra-packages:
+    odbc=?ignore-build-errors,
+    duckdb=?ignore-build-errors,
+    duckplyr=?ignore-build-errors
+Config/comment/gha/extra-packages: Posit Package Manager publishes no
+    aarch64 Windows binaries, so windows-11-arm builds every dependency
+    from source: odbc's vendored nanodbc does not compile against the
+    aarch64 Rtools45, and duckdb bundles the whole DuckDB C++ engine
+    (duckplyr needs it). The parameter demotes a failed source build of
+    that one package to a warning and drops it from the plan; it is keyed
+    on the build failing, not on the platform, so every runner that has a
+    binary still checks against these. Safe because the check is written
+    for it: tests guard with skip_if_not_installed(), and rcc downgrades
+    RCMDCHECK_ERROR_ON to warning when a declared dependency is missing.
+    Same lever as duckdb/duckdb-r, explained in its
+    handbook/operations/ci/matrix/README.md.
+VignetteBuilder:
     knitr
 Config/autostyle/scope: line_breaks
 Config/autostyle/strict: true