add commit hash with link to github into frontend

.env.shell

@@ -0,0 +1 @@
+BUILD_COMMIT="$(git rev-parse HEAD)"

deployment/bare_metal/build_frontend.sh

@@ -2,7 +2,9 @@
 # For that to work, node v12.19.0 needs to be installed with nvm for root
 # or NPM_BIN Path and NVM_DIR must be adjusted
 
-cd /var/www/html/gradido/frontend
+cd /var/www/html/gradido
+eval "echo \"$(cat .env.shell)\"" > .env
+cd frontend
 
 NPM_BIN=/root/.nvm/versions/node/v12.19.0/bin/npm
 

frontend/src/views/Layout/ContentFooter.vue

@@ -15,6 +15,9 @@
           <a href="https://github.com/gradido/gradido/releases/latest" target="_blank">
             App version {{ version }}
           </a>
+          <a :href="'https://github.com/gradido/gradido/commit/' + hash" target="_blank">
+            {{ shortHash }}
+          </a>
         </div>
       </b-col>
     </b-row>
@@ -59,6 +62,8 @@ export default {
     return {
       year: new Date().getFullYear(),
       version: CONFIG.APP_VERSION,
+      hash: process.env.VUE_APP_BUILD_COMMIT,
+      shortHash: process.env.VUE_APP_BUILD_COMMIT.substr(0, 8),
     }
   },
 }

frontend/vue.config.js

@@ -1,6 +1,8 @@
 const path = require('path')
 const dotenv = require('dotenv-webpack')
 
+process.env.VUE_APP_BUILD_COMMIT = process.env.BUILD_COMMIT
+
 // vue.config.js
 module.exports = {
   devServer: {