diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..cc41b37
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,38 @@
+PROJECT=gitlab
+RELEASE_BUCKET=downloads-packages
+RELEASE_BUCKET_REGION=eu-west-1
+SECRET_DIR:=$(shell openssl rand -hex 20)
+
+build:
+	OMNIBUS_APPEND_TIMESTAMP=0 bin/omnibus build project ${PROJECT}
+
+release: no_changes on_tag purge build sync
+
+no_changes:
+	git diff --quiet HEAD
+
+on_tag:
+	git describe --exact-match
+
+purge:
+	bin/omnibus clean --purge ${PROJECT}
+	mkdir -p pkg
+	(cd pkg && find . -delete)
+
+sync: remove_json move_ee_to_secret_dir md5 s3_sync
+
+remove_json:
+	find pkg/ -name '*.json' -delete
+
+move_ee_to_secret_dir:
+	if (git describe | grep -q -w ee); then \
+	  mv pkg ${SECRET_DIR} \
+	  && mkdir pkg \
+	  && mv ${SECRET_DIR} pkg/ \
+	  ; fi
+
+md5:
+	find pkg -type f -exec md5sum {} \;
+
+s3_sync:
+	aws s3 sync pkg/ s3://${RELEASE_BUCKET} --acl public-read --region ${RELEASE_BUCKET_REGION}
diff --git a/release.sh b/release.sh
index 8754a61..29e4591 100755
--- a/release.sh
+++ b/release.sh
@@ -1,55 +1,2 @@
-#!/bin/bash
-PROJECT=gitlab
-RELEASE_BUCKET=downloads-packages
-RELEASE_BUCKET_REGION=eu-west-1
-
-function error_exit
-{
-  echo "$0: fatal error: $1" 1>&2
-  exit 1
-}
-
-if !(git diff --quiet HEAD); then
-  error_exit 'uncommited changes'
-fi
-
-if !(git describe --exact-match); then
-  error_exit 'HEAD is not tagged'
-fi
-
-if !(bin/omnibus clean --purge ${PROJECT}); then
-  error_exit 'clean failed'
-fi
-
-if !(touch build.txt); then
-  error_exit 'failed to mark build start time'
-fi
-
-if !(OMNIBUS_APPEND_TIMESTAMP=0 bin/omnibus build project ${PROJECT}); then
-  error_exit 'build failed'
-fi
-
-release_package=$(find pkg/ -newer build.txt -type f -not -name '*.json')
-if [[ -z ${release_package} ]]; then
-  error_exit 'could not find the release package'
-fi
-
-if (git describe | grep -w ee); then
-  release_dir="$(openssl rand -hex 20)"
-  if [[ $? -ne 0 ]]; then
-    error_exit 'failed to generate release directory name'
-  fi
-  remote_package_path="s3://${RELEASE_BUCKET}/${release_dir}/${release_package#pkg/}"
-else
-  remote_package_path="s3://${RELEASE_BUCKET}/${release_package#pkg/}"
-fi
-
-echo
-echo 'Package MD5:'
-md5sum ${release_package}
-
-echo
-echo 'Starting upload'
-if !(aws s3 cp ${release_package} ${remote_package_path} --acl public-read --region ${RELEASE_BUCKET_REGION}); then
-  error_exit 'release upload failed'
-fi
+#!/bin/sh
+make release
--
libgit2 0.21.2