take version number from VCS info

Author: dimkr

.github/workflows/build.yml

@@ -2,9 +2,6 @@ name: build
 
 on:
   workflow_call:
-    inputs:
-      version:
-        type: string
 
 jobs:
   static:
@@ -13,6 +10,9 @@ jobs:
       image: debian:bookworm-slim
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
       - run: |
           apt-get update -qq
           apt-get install -y --no-install-recommends ca-certificates gcc libc6-dev
@@ -26,18 +26,18 @@ jobs:
           ~/go/bin/staticcheck ./...
           go test ./... -failfast -vet off -tags netgo,sqlite_omit_load_extension,fts5 -race
       - run: |
-          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections' -X github.com/dimkr/tootik/buildinfo.Version=${{ inputs.version }}" -trimpath -o tootik-amd64 ./cmd/tootik
+          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections'" -trimpath -o tootik-amd64 ./cmd/tootik
       - run: |
           apt-get install -y gcc-aarch64-linux-gnu
-          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" GOARCH=arm64 CC=aarch64-linux-gnu-gcc CGO_ENABLED=1 go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections' -X github.com/dimkr/tootik/buildinfo.Version=${{ inputs.version }}" -trimpath -o tootik-arm64 ./cmd/tootik
+          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" GOARCH=arm64 CC=aarch64-linux-gnu-gcc CGO_ENABLED=1 go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections'" -trimpath -o tootik-arm64 ./cmd/tootik
       - run: |
           apt-get install -y gcc-arm-linux-gnueabihf
-          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" GOARCH=arm CC=arm-linux-gnueabihf-gcc CGO_ENABLED=1 go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections' -X github.com/dimkr/tootik/buildinfo.Version=${{ inputs.version }}" -trimpath -o tootik-arm ./cmd/tootik
+          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" GOARCH=arm CC=arm-linux-gnueabihf-gcc CGO_ENABLED=1 go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections'" -trimpath -o tootik-arm ./cmd/tootik
       - run: |
           apt-get install -y gcc-multilib
-          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" GOARCH=386 CGO_ENABLED=1 go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections' -X github.com/dimkr/tootik/buildinfo.Version=${{ inputs.version }}" -trimpath -o tootik-386 ./cmd/tootik
+          CGO_CFLAGS="-O2 -fomit-frame-pointer -ffunction-sections -fdata-sections -fmerge-all-constants" GOARCH=386 CGO_ENABLED=1 go build -tags netgo,sqlite_omit_load_extension,fts5 -ldflags "-w -s -linkmode external -extldflags '-static -Wl,--gc-sections'" -trimpath -o tootik-386 ./cmd/tootik
       - uses: actions/upload-artifact@v4
         with:
-          name: tootik-${{ inputs.version }}
+          name: tootik-${{ github.ref_name }}
           path: tootik-*
           retention-days: 1

.github/workflows/ci.yml

@@ -10,5 +10,3 @@ on:
 jobs:
   build:
     uses: ./.github/workflows/build.yml
-    with:
-      version: 99.99.${{ github.run_number }}

.github/workflows/release.yml

@@ -8,8 +8,6 @@ on:
 jobs:
   build:
     uses: ./.github/workflows/build.yml
-    with:
-      version: ${{ github.ref_name }}
   upload:
     needs: build
     runs-on: ubuntu-latest

Dockerfile

@@ -23,8 +23,7 @@ RUN go generate ./migrations
 COPY . /src
 RUN go vet ./...
 RUN go test ./... -failfast -vet off -tags fts5
-ARG TOOTIK_VERSION=?
-RUN go build -ldflags "-X github.com/dimkr/tootik/buildinfo.Version=$TOOTIK_VERSION" -tags fts5 ./cmd/tootik
+RUN go build -tags fts5 ./cmd/tootik
 
 FROM alpine
 RUN apk add --no-cache ca-certificates openssl

buildinfo/version.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023 Dima Krasner
+Copyright 2023 - 2025 Dima Krasner
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -16,4 +16,17 @@ limitations under the License.
 
 package buildinfo
 
+import (
+	"regexp"
+	"runtime/debug"
+)
+
 var Version = "?"
+
+func init() {
+	if info, ok := debug.ReadBuildInfo(); ok {
+		if ver := regexp.MustCompile(`^v(\d+\.\d+\.\d+).*`).FindStringSubmatch(info.Main.Version); ver != nil {
+			Version = ver[1]
+		}
+	}
+}