.gitattributes

@@ -0,0 +1,3 @@
+/*/**/Dockerfile       linguist-generated
+/Dockerfile*.template  linguist-language=Dockerfile
+*                      text=auto eol=lf

.github/workflows/ci.yml

@@ -3,13 +3,18 @@ name: GitHub CI
 on:
   pull_request:
   push:
+  workflow_dispatch:
   schedule:
     - cron: 0 0 * * 0
 
 defaults:
   run:
     shell: 'bash -Eeuo pipefail -x {0}'
 
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
 
   generate-jobs:
@@ -18,22 +23,41 @@ jobs:
     outputs:
       strategy: ${{ steps.generate-jobs.outputs.strategy }}
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
+      - uses: docker-library/bashbrew@HEAD
       - id: generate-jobs
         name: Generate Jobs
         run: |
-          git clone --depth 1 https://github.com/docker-library/bashbrew.git -b master ~/bashbrew
-          strategy="$(~/bashbrew/scripts/github-actions/generate.sh)"
-          jq . <<<"$strategy" # sanity check / debugging aid
-          echo "::set-output name=strategy::$strategy"
+          strategy="$("$BASHBREW_SCRIPTS/github-actions/generate.sh")"
+
+          # https://github.com/docker-library/python/pull/706 (ensure we don't have any unexpected ".a" leftovers in "/usr/local")
+          strategy="$(jq <<<"$strategy" -c '
+            .matrix.include |= map(
+              if .os == "ubuntu-latest" then
+                .runs.test += "\n" + (
+                  .meta.entries
+                  | map(
+                    .tags[0]
+                    | "aFiles=\"$(docker run --rm \(. | @sh) find /usr/local -name \"*.a\" | tee /dev/stderr)\"; [ -z \"$aFiles\" ]"
+                  )
+                  | join("\n")
+                )
+              else . end
+            )
+          ')"
+
+          EOF="EOF-$RANDOM-$RANDOM-$RANDOM"
+          echo "strategy<<$EOF" >> "$GITHUB_OUTPUT"
+          jq <<<"$strategy" . | tee -a "$GITHUB_OUTPUT"
+          echo "$EOF" >> "$GITHUB_OUTPUT"
 
   test:
     needs: generate-jobs
     strategy: ${{ fromJson(needs.generate-jobs.outputs.strategy) }}
     name: ${{ matrix.name }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Prepare Environment
         run: ${{ matrix.runs.prepare }}
       - name: Pull Dependencies

.github/workflows/verify-templating.yml

@@ -0,0 +1,19 @@
+name: Verify Templating
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: 'bash -Eeuo pipefail -x {0}'
+
+jobs:
+  apply-templates:
+    name: Check For Uncomitted Changes
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: ./apply-templates.sh
+      - run: git diff --exit-code

.gitignore

@@ -0,0 +1 @@
+.jq-template.awk