From b9f29134ee187f2a572f499f5a1b72fa1990331d Mon Sep 17 00:00:00 2001
From: sue445 <sue445@sue445.net>
Date: Thu, 16 Jan 2025 00:05:49 +0900
Subject: [PATCH 1/3] Add job for alpine

---
 .github/workflows/build.yml | 75 +++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c48beb49..37b8245d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -97,6 +97,80 @@ jobs:
           webhook-url: ${{ secrets.SLACK_WEBHOOK }}
           matrix: ${{ toJson(matrix) }}
 
+  build-and-test-alpine:
+    name: "build-and-test-alpine (Go ${{ matrix.go }}, Ruby ${{ matrix.ruby }})"
+
+    needs:
+      - generate-matrix
+
+    runs-on: ubuntu-latest
+
+    container: "ruby:${{ matrix.ruby }}-alpine"
+
+    strategy:
+      fail-fast: false
+
+      matrix: ${{ fromJSON(needs.generate-matrix.outputs.matrix) }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go }}
+
+      - run: apk update
+      - run: apk add git alpine-sdk libffi-dev
+
+      - name: bundle install
+        run: |
+          set -xe
+          bundle config --local path vendor/bundle/
+          bundle install --jobs 4
+
+      - name: Cache vendor/bundle
+        uses: actions/cache@v4
+        with:
+          path: vendor/bundle
+          key: v1-alpine-${{ matrix.ruby }}-${{ github.sha }}
+          restore-keys: |
+            v1-alpine-${{ matrix.ruby }}-
+
+      - name: build and test (Go)
+        run: |
+          set -xe
+          bundle exec rake go:test
+          bundle exec rake go:testrace
+
+      - name: build and test (Ruby)
+        run: bundle exec rake
+        working-directory: ${{ env.TEST_GEM_DIR }}
+
+      # FIXME: workaround for gcov2lcov warning
+      - run: rm -rf vendor/
+
+      - name: Convert coverage to lcov
+        uses: jandelgado/gcov2lcov-action@v1
+        with:
+          infile: coverage.out
+          outfile: coverage.lcov
+
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: coverage.lcov
+        continue-on-error: true # NOTE: secrets cannot be obtained with forked repository PR
+
+      - name: Slack Notification (not success)
+        uses: act10ns/slack@v2
+        if: "! success()"
+        continue-on-error: true
+        with:
+          status: ${{ job.status }}
+          webhook-url: ${{ secrets.SLACK_WEBHOOK }}
+          matrix: ${{ toJson(matrix) }}
+
   go-lint:
     name: "go-lint (Ruby ${{ matrix.ruby }})"
 
@@ -236,6 +310,7 @@ jobs:
   notify:
     needs:
       - build-and-test
+      - build-and-test-alpine
       - go-lint
       - ruby-lint
       - ruby-rbs

From 846ecf455503ddf3032e53ba2714d444bea92b9b Mon Sep 17 00:00:00 2001
From: sue445 <sue445@sue445.net>
Date: Thu, 16 Jan 2025 23:52:19 +0900
Subject: [PATCH 2/3] Add alpine Dockerfile

---
 .dockerignore                  |  8 ++++++++
 README.md                      | 13 +++++++++++++
 _dockerfiles/alpine.dockerfile | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 53 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 _dockerfiles/alpine.dockerfile

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 00000000..f271ab7e
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,8 @@
+.bundle/
+.gem_rbs_collection/
+.git/
+.yardoc/
+doc/
+vendor/
+**/*.so
+**/*.bundle
diff --git a/README.md b/README.md
index 8ff3eb8b..2842e408 100644
--- a/README.md
+++ b/README.md
@@ -131,6 +131,19 @@ Run `bundle exec rake build_all`.
 
 See `bundle exec rake -T` for more tasks.
 
+### Build in docker container
+e.g.
+
+```bash
+docker build --file=_dockerfiles/alpine.dockerfile -t go-gem-wrappper .
+# or
+docker build --file=_dockerfiles/alpine.dockerfile -t go-gem-wrappper --build-arg GO_VERSION=1.23 --build-arg RUBY_VERSION=3.4 .
+
+docker run --rm -it go-gem-wrappper sh
+```
+
+Run `bundle exec rake build_all` in container.
+
 ### See `godoc` in local
 ```bash
 go install golang.org/x/tools/cmd/godoc@latest
diff --git a/_dockerfiles/alpine.dockerfile b/_dockerfiles/alpine.dockerfile
new file mode 100644
index 00000000..2ab12cf1
--- /dev/null
+++ b/_dockerfiles/alpine.dockerfile
@@ -0,0 +1,32 @@
+ARG GO_VERSION=1.23
+ARG RUBY_VERSION=3.4
+ARG ALPINE_VERSION=3.21
+
+FROM golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS golang
+
+FROM ruby:${RUBY_VERSION}-alpine${ALPINE_VERSION}
+
+RUN apk update && \
+    apk add --no-cache git alpine-sdk libffi-dev \
+                       gdb strace binutils valgrind # for debug in container
+
+COPY --from=golang /usr/local/go /usr/local/go
+COPY --from=golang /go /go
+
+ENV PATH=/go/bin:/usr/local/go/bin:$PATH \
+    GOPATH=/go \
+    GOLANGCI_LINT_VERSION=v1.60.3
+
+RUN wget -O- -nv https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s ${GOLANGCI_LINT_VERSION}
+
+WORKDIR /app
+
+COPY Gemfile Gemfile.lock ./
+COPY _gem/go_gem.gemspec _gem/
+COPY _gem/lib/go_gem/version.rb _gem/lib/go_gem/
+
+RUN bundle config --local path vendor/bundle/ && \
+    bundle config --local deployment true && \
+    bundle install --jobs 4
+
+COPY . .

From 48406bb1d2b95e31f4598cbcc2247d55cf516af7 Mon Sep 17 00:00:00 2001
From: sue445 <sue445@sue445.net>
Date: Fri, 24 Jan 2025 23:39:07 +0900
Subject: [PATCH 3/3] [WIP] Add debug flags example gem

---
 ruby/testdata/example/ext/example/extconf.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ruby/testdata/example/ext/example/extconf.rb b/ruby/testdata/example/ext/example/extconf.rb
index c1769e7e..2a025e52 100644
--- a/ruby/testdata/example/ext/example/extconf.rb
+++ b/ruby/testdata/example/ext/example/extconf.rb
@@ -12,5 +12,5 @@
 append_cflags("-fvisibility=hidden")
 
 ############ Appended for go native extension
-create_go_makefile("example/example")
+create_go_makefile("example/example", go_build_args: "-gcflags='all=-N -l'")
 ############ Appended for go native extension