extract old version from git tags

premnirmal · Feb 13, 2022 · 896bff2 · 896bff2
1 parent 94172f0
commit 896bff2
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Showing 2 changed files with 18 additions and 4 deletions.
diff --git a/app/build.gradle b/app/build.gradle
@@ -42,6 +42,20 @@ def getVersionName = { ->
   }
 }
 
+def getOldGitVersion = { ->
+  try {
+    def stdout = new ByteArrayOutputStream()
+    exec {
+      commandLine 'sh', '-c', 'git tag --sort=-committerdate | head -5 | tail -1'
+      standardOutput = stdout
+    }
+    return stdout.toString().trim()
+  }
+  catch (ignored) {
+    return null;
+  }
+}
+
 android {
   compileSdkVersion 31
   buildToolsVersion "31.0.0"
@@ -51,6 +65,7 @@ android {
   def final minor = name.split("\\.")[1].toInteger()
   def final patch = name.split("\\.")[2].toInteger()
   def final code = (major * 100000000) + (minor * 100000) + patch
+  def final oldGitVersion = getOldGitVersion()
   def final appIdBase = "com.github.premnirmal.tickerwidget"
 
   defaultConfig {
@@ -63,6 +78,8 @@ android {
     versionName = name
     multiDexEnabled true
 
+    buildConfigField "String", "PREVIOUS_VERSION", "\"$oldGitVersion\""
+
     javaCompileOptions {
       annotationProcessorOptions {
         arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]

diff --git a/app/src/main/kotlin/com/github/premnirmal/ticker/network/CommitsProvider.kt b/app/src/main/kotlin/com/github/premnirmal/ticker/network/CommitsProvider.kt
@@ -28,10 +28,7 @@ class CommitsProvider @Inject constructor(
     return withContext(Dispatchers.IO) {
       try {
         val currentVersion = BuildConfig.VERSION_NAME
-        val major = currentVersion.split("\\.")[0].toInt()
-        val minor = currentVersion.split("\\.")[1].toInt()
-        val patch = currentVersion.split("\\.")[2].toInt()
-        val previousVersion = "$major.$minor.${patch - 2}"
+        val previousVersion = BuildConfig.PREVIOUS_VERSION
         val comparison = githubApi.compareTags(
             previousVersion, currentVersion
         )