add scripts/version.sh

Signed-off-by: andy.lee <andy.lee@suse.com>

scripts/version

@@ -0,0 +1,57 @@
+#!/bin/bash
+shopt -s extglob
+
+if [ -n "$(git status --porcelain --untracked-files=no)" ]; then
+    DIRTY="-dirty"
+fi
+
+COMMIT=$(git rev-parse --short HEAD)
+COMMIT_DATE=$(git --no-pager log -1 --format='%ct')
+COMMIT_BRANCH=$(git rev-parse --abbrev-ref HEAD | sed -E 's/[^a-zA-Z0-9.-]+/-/g')
+GIT_TAG=${CI_BUILD_TAG:-$(git tag -l --contains HEAD | head -n 1)}
+LAST_TAG=${GIT_TAG:-'v0.0.0'}
+
+if [[ -z "$DIRTY" && -n "$GIT_TAG" ]]; then
+    # human readable version used on rancher dashboard about page
+    export DASHBOARD_VERSION=$GIT_TAG
+    # computer readable version
+    VERSION=$GIT_TAG
+else
+    # human readable version used on rancher dashboard about page
+    export DASHBOARD_VERSION="${COMMIT_BRANCH} ${COMMIT}"
+    # computer readable version
+    VERSION="${COMMIT}${DIRTY}"
+fi
+
+# Chart tag.
+if [[ -z "${DIRTY}" && -n "${GIT_TAG}" ]]; then
+    CHART_VERSION="${GIT_TAG}"
+elif [[ "$DIRTY" ]]; then
+    CHART_VERSION="${LAST_TAG}${DIRTY}.${COMMIT}"
+else
+    CHART_VERSION="${LAST_TAG}-${COMMIT_DATE}.${COMMIT}.${COMMIT_BRANCH}"
+fi
+
+# Drop the v prefix for Chart Version to follow existing pattern.
+CHART_VERSION="$(echo ${CHART_VERSION} | sed -E 's/^v//' | sed -e 's/^\(.\{55\}\).*/\1/')"
+
+# Chart Repo - Target Repo for releases.
+case $CHART_VERSION in
+    *-alpha*) # All alpha tags
+        CHART_REPO="alpha" ;;
+    *-rc*) # All rc tags
+        CHART_REPO="latest" ;;
+    +([0-9]).+([0-9]).+([0-9])) # All release tags
+        CHART_REPO="latest" ;;
+    *) # Anything else - Future use
+        CHART_REPO="dev" ;;
+esac
+
+if [ -z "$ARCH" ]; then
+    ARCH=amd64
+fi
+
+echo "ARCH: $ARCH"
+echo "CHART_REPO: $CHART_REPO"
+echo "CHART_VERSION: $CHART_VERSION"
+echo "VERSION: $VERSION"