Make danger check view changes (#391)

Make danger check view changes

Add a check that if a file with @Preview or @LargeHeightPreview
in it is changed, then the corresponding build file includes
the showkase processor.

Also change the check that prompts about screenshots to use
the same @Preview logic instead of checking for "/layout" in
the path which doesn't work with compose.

Also add missing showkase processors

appnav/build.gradle.kts

@@ -69,4 +69,6 @@ dependencies {
     testImplementation(projects.services.appnavstate.test)
     testImplementation(libs.test.appyx.junit)
     testImplementation(libs.test.arch.core)
+
+    ksp(libs.showkase.processor)
 }

features/logout/api/build.gradle.kts

@@ -15,6 +15,7 @@
  */
 plugins {
     id("io.element.android-compose-library")
+    alias(libs.plugins.ksp)
 }
 
 android {
@@ -25,4 +26,6 @@ dependencies {
     implementation(projects.libraries.architecture)
     implementation(projects.libraries.designsystem)
     implementation(projects.libraries.uiStrings)
+
+    ksp(libs.showkase.processor)
 }

features/networkmonitor/api/build.gradle.kts

@@ -16,6 +16,7 @@
 
 plugins {
     id("io.element.android-compose-library")
+    alias(libs.plugins.ksp)
 }
 
 android {
@@ -26,4 +27,6 @@ dependencies {
     implementation(libs.coroutines.core)
     implementation(projects.libraries.designsystem)
     implementation(projects.libraries.uiStrings)
+
+    ksp(libs.showkase.processor)
 }

features/rageshake/api/build.gradle.kts

@@ -15,6 +15,7 @@
  */
 plugins {
     id("io.element.android-compose-library")
+    alias(libs.plugins.ksp)
 }
 
 android {
@@ -26,4 +27,6 @@ dependencies {
     implementation(projects.libraries.designsystem)
     implementation(projects.libraries.androidutils)
     implementation(projects.libraries.uiStrings)
+
+    ksp(libs.showkase.processor)
 }

features/rageshake/api/src/main/kotlin/io/element/android/features/rageshake/api/crash/CrashDetectionView.kt

@@ -80,3 +80,4 @@ private fun ContentToPreview() {
         state = aCrashDetectionState().copy(crashDetected = true)
     )
 }
+

tools/danger/dangerfile.js

@@ -1,4 +1,6 @@
 const {danger, warn} = require('danger')
+const fs = require('fs')
+const path = require('path')
 
 /**
  * Note: if you update the checks in this file, please also update the file ./docs/danger.md
@@ -128,9 +130,33 @@ if (allowList.includes(user)) {
     })
 }
 
+const previewAnnotations = [
+    'androidx.compose.ui.tooling.preview.Preview',
+    'io.element.android.libraries.designsystem.preview.LargeHeightPreview'
+]
+
+const filesWithPreviews = editedFiles.filter(file => file.endsWith(".kt")).filter(file => {
+    const content = fs.readFileSync(file);
+    return previewAnnotations.some((ann) => content.includes(ann));
+})
+
+const buildFilesWithMissingProcessor = filesWithPreviews.map(file => {
+    let parent = path.dirname(file);
+    while (fs.statSync(path.join(parent, 'build.gradle.kts'), {throwIfNoEntry: false}) === undefined) {
+        parent = path.dirname(parent);
+    }
+    return path.join(parent, 'build.gradle.kts');
+}).filter((value, index, array) => array.indexOf(value) === index).filter(buildFile => {
+    const content = fs.readFileSync(buildFile);
+    return !content.includes('ksp(libs.showkase.processor)');
+})
+
+if (buildFilesWithMissingProcessor.length > 0) {
+    warn("You have made changes to a file containing a `@Preview` annotated function but its module doesn't include the showkase processor. Missing processor in: " + buildFilesWithMissingProcessor.join(", "))
+}
 
 // Check for screenshots on view changes
-const hasChangedViews = editedFiles.filter(file => file.includes("/layout")).length > 0
+const hasChangedViews = filesWithPreviews.length > 0
 if (hasChangedViews) {
     if (!pr.body.includes("user-images")) {
         warn("You seem to have made changes to views. Please consider adding screenshots.")