diff --git a/build.gradle b/build.gradle
index 3554f01..0911ac1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,3 +1,33 @@
+import org.joda.time.DateTime
+
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'joda-time:joda-time:2.10.10'
+    }
+}
+
+ext {
+    getGitInfo = {
+        return [
+                branch : 'git rev-parse --abbrev-ref HEAD'.execute().text.trim(),
+                id     : 'git rev-parse HEAD'.execute().text.trim(),
+                rev    : 'git rev-list --count HEAD'.execute().text.trim(),
+                origin : 'git config --get remote.origin.url'.execute().text.trim()
+        ]
+    }
+
+    gitInfo = getGitInfo()
+    buildSummary = gitInfo.id
+    hostname = InetAddress.getLocalHost().getHostName().toUpperCase()
+    now = DateTime.now().toString()
+    rev = gitInfo.rev.replaceAll(/[^a-zA-Z0-9]/, '')
+    branch = gitInfo.branch
+    version = gitInfo.branch != 'stable' ? "${project.version}-${branch}_r${rev}" : project.version
+}
+
 subprojects {
     apply plugin: 'java'
     group = 'org.nodel'
@@ -5,4 +35,4 @@ subprojects {
     repositories {
         mavenCentral()
     }
-}
+}
\ No newline at end of file
diff --git a/nodel-framework/build.gradle b/nodel-framework/build.gradle
index 08be714..f928bc3 100644
--- a/nodel-framework/build.gradle
+++ b/nodel-framework/build.gradle
@@ -1,50 +1,18 @@
-import org.apache.tools.ant.filters.ReplaceTokens
-import org.joda.time.DateTime;
-
 apply plugin: 'java'
 apply plugin: 'maven-publish'
 apply plugin: 'eclipse'
 
-buildscript {
-    repositories {
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'joda-time:joda-time:2.6'
-    }
-}
-
 // some extended unicode is used in SimpleName
 compileJava.options.encoding = 'utf-8'
 
-def hostname = InetAddress.getLocalHost().getHostName().toUpperCase();
-
-def now = DateTime.now().toString();
-
-def gitBranch = 'git rev-parse --abbrev-ref HEAD'.execute().text.trim()
-def gitId = 'git rev-parse HEAD'.execute().text.trim()
-def gitRev = 'git rev-list --count HEAD'.execute().text.trim()
-
-def branch = gitBranch
-if (branch.equals("master"))
-    branch = "dev"
-
-def rev = gitRev
-// strip out non-alphanumeric (e.g. the '+' in '1234+')
-rev = rev.replaceAll(/[^a-zA-Z0-9]/, '')
-
-def buildSummary = gitId
-
-if (!branch.equals("stable"))
-    version = version + "-" + branch + "_r" + rev
+version = rootProject.ext.gitInfo.branch != 'stable' ? "${project.version}-${rootProject.ext.branch}_r${rootProject.ext.rev}" : project.version
 
 jar {
     from "$buildDir/output"
     archiveBaseName = 'nodel-framework'
     manifest {
         attributes 'Implementation-Title': 'Nodel framework for Java',
-                'Implementation-Version': version
+                'Implementation-Version': rootProject.ext.version
     }
 }
 
diff --git a/nodel-jyhost/build.gradle b/nodel-jyhost/build.gradle
index 94f2d01..b4265d5 100644
--- a/nodel-jyhost/build.gradle
+++ b/nodel-jyhost/build.gradle
@@ -9,20 +9,6 @@ repositories {
     mavenCentral()
 }
 
-def gitBranch = 'git rev-parse --abbrev-ref HEAD'.execute().text.trim()
-def gitId = 'git rev-parse HEAD'.execute().text.trim()
-def gitRev = 'git rev-list --count HEAD'.execute().text.trim()
-
-def branch = gitBranch
-if (branch.equals("master"))
-    branch = "dev"
-
-def rev = gitRev
-// strip out non-alphanumeric (e.g. the '+' in '1234+')
-rev = rev.replaceAll(/[^a-zA-Z0-9]/, '')
-
-def buildSummary = gitId
-
 application {
     mainClass = 'org.nodel.jyhost.Launch'
 }
@@ -42,9 +28,9 @@ tasks.register('fatJar', Jar) {
                 'Implementation-Version': archiveVersion,
                 'Main-Class': application.mainClassName
     }
-    archiveAppendix = branch
+    archiveAppendix = rootProject.ext.branch
     archiveBaseName = 'nodelhost'
-    archiveClassifier = 'rev' + rev
+    archiveClassifier = 'rev' + rootProject.ext.rev
     destinationDirectory = new File(buildDir, 'distributions/standalone')
     from { configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) } }
     with jar
diff --git a/nodel-webui-js/build.gradle b/nodel-webui-js/build.gradle
index 37818d2..a747127 100644
--- a/nodel-webui-js/build.gradle
+++ b/nodel-webui-js/build.gradle
@@ -1,5 +1,4 @@
 import org.apache.tools.ant.filters.ReplaceTokens
-import org.joda.time.DateTime
 
 buildscript {
     repositories {
@@ -27,23 +26,6 @@ dependencies {
     implementation 'org.joda:joda-convert:2.2.1'
 }
 
-static def getGitInfo() {
-    return [
-            branch : 'git rev-parse --abbrev-ref HEAD'.execute().text.trim(),
-            id     : 'git rev-parse HEAD'.execute().text.trim(),
-            rev    : 'git rev-list --count HEAD'.execute().text.trim(),
-            origin : 'git config --get remote.origin.url'.execute().text.trim()
-    ]
-}
-
-def buildSummary = gitInfo.id
-def hostname = InetAddress.getLocalHost().getHostName().toUpperCase()
-def now = DateTime.now().toString()
-def rev = gitInfo.rev.replaceAll(/[^a-zA-Z0-9]/, '')
-def branch = gitInfo.branch
-
-version = gitInfo.branch != 'stable' ? "${project.version}-${branch}_r${rev}" : project.version
-
 node {
     version = '12.19.0'
     download = true
@@ -126,15 +108,15 @@ tasks.register('filterContentTemplates', Copy) {
     into file("${project.buildDir}/www-content_stage")
     include 'build.json'
     filter(ReplaceTokens, tokens: [
-            buildSummary: (project.name + "-" + project.version + " " + buildSummary + " (" + hostname + ") " + now).toString(),
-            buildOrigin : gitInfo.origin.toString(),
+            buildSummary: (project.name + "-" + project.version + " " + rootProject.ext.buildSummary + " (" + rootProject.ext.hostname + ") " + rootProject.ext.now).toString(),
+            buildOrigin : rootProject.ext.gitInfo.origin.toString(),
             buildProject: project.name.toString(),
-            buildBranch : branch.toString(),
-            buildVersion: project.version.toString(),
-            buildId     : buildSummary.toString(),
-            buildRev    : rev.toString(),
-            buildHost   : hostname.toString(),
-            buildDate   : now.toString()
+            buildBranch : rootProject.ext.branch.toString(),
+            buildVersion: rootProject.ext.version.toString(),
+            buildId     : rootProject.ext.buildSummary.toString(),
+            buildRev    : rootProject.ext.rev.toString(),
+            buildHost   : rootProject.ext.hostname.toString(),
+            buildDate   : rootProject.ext.now.toString()
     ])
 }