From 18afd92fc3510a5b3ebac779ef68e1aa2baa8912 Mon Sep 17 00:00:00 2001
From: Alejandro Celaya <alejandro@alejandrocelaya.com>
Date: Fri, 31 Jul 2020 21:32:06 +0200
Subject: [PATCH] Fixed how docker image version is extracted from github ref

---
 docker/build | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/docker/build b/docker/build
index ace00bde..fdd58106 100755
--- a/docker/build
+++ b/docker/build
@@ -7,12 +7,13 @@ DOCKER_IMAGE="shlinkio/shlink"
 
 # If ref is not develop, then this is a tag. Build that docker tag and also "stable"
 if [[ "$GITHUB_REF" != *"develop"* ]]; then
-  TAGS="-t ${DOCKER_IMAGE}:${GITHUB_REF#?}"
+  VERSION=${GITHUB_REF#refs/tags/v}
+  TAGS="-t ${DOCKER_IMAGE}:${VERSION}"
   # Push stable tag only if this is not an alpha or beta tag
   [[ $GITHUB_REF != *"alpha"* && $GITHUB_REF != *"beta"* ]] && TAGS="${TAGS} -t ${DOCKER_IMAGE}:stable"
 
   docker buildx build --push \
-    --build-arg SHLINK_VERSION=${GITHUB_REF#?} \
+    --build-arg SHLINK_VERSION=${VERSION} \
     --platform ${PLATFORMS} \
     ${TAGS} .