Merge pull request #707 from crazy-max/git-ref

Use GITHUB_REF when tag pushed for versioning

Author: crazy-max

Dockerfile

@@ -13,8 +13,15 @@ RUN apk add --no-cache file git
 WORKDIR /src
 
 FROM base AS version
-RUN --mount=target=. \
-  echo $(git describe --match 'v[0-9]*' --dirty='.m' --always --tags) | tee /tmp/.version
+ARG GIT_REF
+RUN --mount=target=. <<EOT
+  set -e
+  case "$GIT_REF" in
+    refs/tags/v*) version="${GIT_REF#refs/tags/}" ;;
+    *) version=$(git describe --match 'v[0-9]*' --dirty='.m' --always --tags) ;;
+  esac
+  echo "$version" | tee /tmp/.version
+EOT
 
 FROM base AS vendored
 COPY go.mod go.sum ./

docker-bake.hcl

@@ -6,9 +6,16 @@ variable "DESTDIR" {
   default = "./bin"
 }
 
+# GITHUB_REF is the actual ref that triggers the workflow and used as version
+# when tag is pushed: https://docs.github.com/en/actions/learn-github-actions/environment-variables#default-environment-variables
+variable "GITHUB_REF" {
+  default = ""
+}
+
 target "_common" {
   args = {
     GO_VERSION = GO_VERSION
+    GIT_REF = GITHUB_REF
   }
 }