Bug 1882087 - Format build failure messages for treeherder. r=tthibaud,android-reviewers

Co-authored with @tthibaud : We have borrowed from geckoview's reformatting of gradle errors and warnings: https://searchfox.org/mozilla-central/rev/b189986e26a92f749462094e7869771c1a6607c0/mobile/android/geckoview/build.gradle#165-202
...with adaptations as needed for A-C, Focus, and Fenix.

Example: https://treeherder.mozilla.org/jobs?repo=try&revision=221a0bc4bd8040e179735213e49a618fb83bf827

Differential Revision: https://phabricator.services.mozilla.com/D204425

mobile/android/android-components/build.gradle

@@ -244,6 +244,40 @@ subprojects {
             }
         }
     }
+
+    tasks.withType(KotlinCompile).configureEach {
+        // Translate Kotlin messages like "w: ..." and "e: ..." into
+        // "...: warning: ..." and "...: error: ...", to make Treeherder understand.
+        def listener = {
+            if (it.startsWith("e: warnings found")) {
+                return
+            }
+
+            if (it.startsWith('w: ') || it.startsWith('e: ')) {
+                def matches = (it =~ /([ew]): (.+):(\d+):(\d+) (.*)/)
+                if (!matches) {
+                    logger.quiet "kotlinc message format has changed!"
+                    if (it.startsWith('w: ')) {
+                        // For warnings, don't continue because we don't want to throw an
+                        // exception. For errors, we want the exception so that the new error
+                        // message format gets translated properly.
+                        return
+                    }
+                }
+                def (_, type, file, line, column, message) = matches[0]
+                type = (type == 'w') ? 'warning' : 'error'
+                // Use logger.lifecycle, which does not go through stderr again.
+                logger.lifecycle "$file:$line:$column: $type: $message"
+            }
+        } as StandardOutputListener
+
+        doFirst {
+            logging.addStandardErrorListener(listener)
+        }
+        doLast {
+            logging.removeStandardErrorListener(listener)
+        }
+    }
 }
 
 if (findProject(":geckoview") == null) {

mobile/android/fenix/build.gradle

@@ -79,6 +79,41 @@ subprojects {
             jvmToolchain(config.jvmTargetCompatibility)
         }
     }
+
+    tasks.withType(KotlinCompile).configureEach { task ->
+        // Translate Kotlin messages like "w: ..." and "e: ..." into
+        // "...: warning: ..." and "...: error: ...", to make Treeherder understand.
+        def listener = {
+
+            if (it.startsWith("e: warnings found")) {
+                return
+            }
+
+            if (it.startsWith('w: ') || it.startsWith('e: ')) {
+                def matches = (it =~ /([ew]): (.+):(\d+):(\d+) (.*)/)
+                if (!matches) {
+                    logger.quiet "kotlinc message format has changed!"
+                    if (it.startsWith('w: ')) {
+                        // For warnings, don't continue because we don't want to throw an
+                        // exception. For errors, we want the exception so that the new error
+                        // message format gets translated properly.
+                        return
+                    }
+                }
+                def (_, type, file, line, column, message) = matches[0]
+                type = (type == 'w') ? 'warning' : 'error'
+                // Use logger.lifecycle, which does not go through stderr again.
+                logger.lifecycle "$file:$line:$column: $type: $message"
+            }
+        } as StandardOutputListener
+
+        doFirst {
+            logging.addStandardErrorListener(listener)
+        }
+        doLast {
+            logging.removeStandardErrorListener(listener)
+        }
+    }
 }
 
 tasks.register('clean', Delete) {

mobile/android/focus-android/build.gradle

@@ -1,5 +1,7 @@
 import io.gitlab.arturbosch.detekt.Detekt
 import io.gitlab.arturbosch.detekt.DetektCreateBaselineTask
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
@@ -101,6 +103,41 @@ subprojects {
             jvmToolchain(config.jvmTargetCompatibility)
         }
     }
+
+    tasks.withType(KotlinCompile).configureEach { task ->
+        // Translate Kotlin messages like "w: ..." and "e: ..." into
+        // "...: warning: ..." and "...: error: ...", to make Treeherder understand.
+        def listener = {
+
+            if (it.startsWith("e: warnings found")) {
+                return
+            }
+
+            if (it.startsWith('w: ') || it.startsWith('e: ')) {
+                def matches = (it =~ /([ew]): (.+):(\d+):(\d+) (.*)/)
+                if (!matches) {
+                    logger.quiet "kotlinc message format has changed!"
+                    if (it.startsWith('w: ')) {
+                        // For warnings, don't continue because we don't want to throw an
+                        // exception. For errors, we want the exception so that the new error
+                        // message format gets translated properly.
+                        return
+                    }
+                }
+                def (_, type, file, line, column, message) = matches[0]
+                type = (type == 'w') ? 'warning' : 'error'
+                // Use logger.lifecycle, which does not go through stderr again.
+                logger.lifecycle "$file:$line:$column: $type: $message"
+            }
+        } as StandardOutputListener
+
+        doFirst {
+            logging.addStandardErrorListener(listener)
+        }
+        doLast {
+            logging.removeStandardErrorListener(listener)
+        }
+    }
 }
 
 tasks.register('clean', Delete) {