add build staff

.dockerignore

@@ -0,0 +1,2 @@
+docx2md
+docx2md.exe

.github/workflows/docker.yaml

@@ -0,0 +1,48 @@
+name: Publish Docker image
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  push_to_registry:
+    name: Docker
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out the repo
+      uses: actions/checkout@v3
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Log in to GitHub Container Registry
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Extract metadata (tags, labels) for Docker
+      id: meta
+      uses: docker/metadata-action@v3
+      with:
+        images: ghcr.io/${{ github.repository }}
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        platforms: linux/amd64
+        builder: ${{ steps.buildx.outputs.name }}
+        push: ${{ github.event_name != 'pull_request' }}
+        tags: |
+          ghcr.io/${{ github.repository }}:latest
+          ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+        cache-from: type=gha
+        cache-to: type=gha,mode=max # mode=maxを有効にすると、中間ステージまで含めてキャッシュできる

.gitignore

@@ -0,0 +1,2 @@
+docx2md
+docx2md.exe

Dockerfile

@@ -0,0 +1,15 @@
+# syntax=docker/dockerfile:1.4
+
+FROM golang:1.23-alpine AS build-dev
+WORKDIR /go/src/app
+COPY --link go.mod go.sum ./
+RUN apk add --no-cache upx || \
+    go version && \
+    go mod download
+COPY --link . .
+RUN CGO_ENABLED=0 go install -buildvcs=false -trimpath -ldflags '-w -s'
+RUN [ -e /usr/bin/upx ] && upx /go/bin/docx2md || echo
+FROM scratch
+COPY --link --from=build-dev /go/bin/docx2md /go/bin/docx2md
+COPY --from=build-dev /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+CMD ["/go/bin/docx2md"]

go.mod

@@ -1,5 +1,7 @@
 module github.com/mattn/docx2md
 
-go 1.14
+go 1.23
 
-require github.com/mattn/go-runewidth v0.0.7
+require github.com/mattn/go-runewidth v0.0.16
+
+require github.com/rivo/uniseg v0.4.7 // indirect

go.sum

@@ -1,4 +1,5 @@
-github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
-github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
-github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54=
-github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
+github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=