Adds build date to the about page

app/build.gradle

@@ -186,6 +186,9 @@ android.applicationVariants.all { variant ->
     } else {
         buildConfigField 'boolean', 'TELEMETRY', 'false'
     }
+
+    def buildDate = Config.generateBuildDate()
+    buildConfigField 'String', 'BUILD_DATE', '"' + buildDate + '"'
 }
 
 // Normally this should use the same version as the glean dependency. But since we are currently using AC snapshots we

app/src/main/java/org/mozilla/fenix/settings/AboutPage.kt

@@ -10,6 +10,7 @@ import android.content.Context
 import android.content.pm.PackageManager
 import androidx.annotation.RawRes
 import org.mozilla.fenix.R
+import org.mozilla.fenix.BuildConfig.BUILD_DATE
 import org.mozilla.fenix.ext.replace
 import org.mozilla.geckoview.BuildConfig
 
@@ -33,6 +34,8 @@ object AboutPage {
             // Nothing to do if we can't find the package name.
         }
 
+        substitutionMap["%build-date%"] = BUILD_DATE
+
         context.resources.getString(R.string.about_content, appName).also { content ->
             substitutionMap["%about-content%"] = content
         }

app/src/main/res/raw/about.html

@@ -45,5 +45,7 @@ h1#wordmark {
         <h1 id="wordmark">Fenix</h1>
         <p class="subtitle">%about-version%</p>
         %about-content%
+
+        <p class="subtitle">Built on: %build-date%</p>
     </body>
 </html>

buildSrc/src/main/java/Config.kt

@@ -1,4 +1,6 @@
 import java.text.SimpleDateFormat
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
 import java.util.Date
 import java.util.Locale
 
@@ -24,4 +26,12 @@ object Config {
         // sections we use in the changelog (weeks).
         return SimpleDateFormat(".yyww", Locale.US).format(today)
     }
+
+    @JvmStatic
+    fun generateBuildDate(): String {
+        val dateTime = LocalDateTime.now()
+        val timeFormatter = DateTimeFormatter.ofPattern("h:mm a")
+
+        return "${dateTime.dayOfWeek.toString().toLowerCase().capitalize()} ${dateTime.monthValue}/${dateTime.dayOfMonth} @ ${timeFormatter.format(dateTime)}"
+    }
 }