Fix https://github.com/elgohr/Publish-Docker-Github-Action/issues/22

entrypoint.sh

@@ -16,7 +16,7 @@ if [ -z "${INPUT_PASSWORD}" ]; then
   exit 1
 fi
 
-BRANCH=$(echo ${GITHUB_REF} | sed -e "s/refs\/heads\///g")
+BRANCH=$(echo ${GITHUB_REF} | sed -e "s/refs\/heads\///g" | sed -e "s/\//-/g")
 
 if [ "${BRANCH}" = "master" ]; then
   BRANCH="latest"

test.bats

@@ -42,6 +42,19 @@ Called mock with: logout"
   [ "$output" = "$expected" ]
 }
 
+@test "it converts dashes in branch to hyphens" {
+  export GITHUB_REF='refs/heads/myBranch/withDash'
+
+  run /entrypoint.sh
+
+  local expected="Called mock with: login -u USERNAME --password-stdin
+Called mock with: build -t my/repository:myBranch-withDash .
+Called mock with: push my/repository:myBranch-withDash
+Called mock with: logout"
+  echo $output
+  [ "$output" = "$expected" ]
+}
+
 @test "it pushes tags to latest" {
   export GITHUB_REF='refs/tags/myRelease'