IssueTracker

DESCRIBE THE ISSUE IN DETAIL:

It is possible to put lint.xmls in the rootProject and in every module individually. These will be considered together to set up configuration for each module. In the attach project the structure is:

• app
  • lint.xml missing, will use ../lint.xml
  • uses :lib
  • has 1 unused resource
• lib
  • lint.xml exists, but empty (will be modified by step 6)
  • has 1 unused resource
  • has 1 used resource that appears unused due to not checking dependencies
• lint.xml exists, and suppresses the clear unused resources by pattern.

STEPS TO REPRODUCE:

1. Download project from https://github.com/TWiStErRob/repros/tree/master/agp/lint-xml-up-to-date
2. gradlew lint
3. Observe :lib:lintDebug telling us there's an unused resource called "unused" in lib/build/reports/lint-results-debug.html
4. gradlew lint
5. Observe nothing was executed, everything up-to-date.
6. Go to lib/lint.xml and uncomment <ignore>
7. gradlew lint

Actual: Observe nothing was executed, everything up-to-date.

Expected: lint analysis re-executes and updates the HTML report with the findings based on the newly changed config file.

Bonus steps to prove that the uncommenting should have an effect:

8. gradlew clean lint --no-build-cache
9. Observe no lint warnings.

Workaround

polyfill missing setup

allprojects {
	val project = this
	project.plugins.withId("com.android.base") {
		project.tasks.withType<com.android.build.gradle.internal.lint.AndroidLintTask>().configureEach {
			this.inputs.files(project.rootProject.file("lint.xml")).withPathSensitivity(PathSensitivity.RELATIVE)
			this.inputs.files(project.file("lint.xml")).withPathSensitivity(PathSensitivity.RELATIVE)
		}
	}
}

Studio Build: N/A
Version of Gradle Plugin: 7.0.4
Version of Gradle: 7.3.2
Version of Java: 11
OS: Windows 10