Imported coverage data for 0 files

When running code coverage analysis on our CI/CD platform (Jenkins worker on macOS) a Swift iOS app, sonar-scanner does not import coverage data with the message

Imported coverage data for 0 files

The same analysis works on developer workstations that are using the same version of sonar-scanner, Java, and OS. I am looking for troubleshooting pointers on how to determine why the same coverage analysis is behaving differently on different systems.

Must-share information (formatted with Markdown):

  • which versions are you using (SonarQube, Scanner, Plugin, and any relevant extension)
    SonarQube: 7.7 Developer Edition
    sonar-scanner: 3.3.0.1492
    SonarSwift plugin: 4.1 (build 3087)
    Java: Java 1.8.0_212 AdoptOpenJDK (64-bit)
    OS: Mac OS X 10.14.3 x86_64
  • what are you trying to achieve
    Code coverage analysis
  • what have you tried so far to achieve this
    We followed the instructions on https://github.com/SonarSource/sonar-scanning-examples/tree/master/swift-coverage. sonar-scanner fails to import coverage data with the sonar-coverage-example code as well as our iOS application. The full output of the analysis for sonar-coverage-example is below. I can also provide the output for a successful analysis, if needed.
sonar-scanner -Dsonar.projectKey=TestCoverage -Dsonar.sources=. -Dsonar.coverageReportPaths=sonarqube-generic-coverage.xml -Dsonar.cfamily.build-wrapper-output.bypass=true
INFO: Scanner configuration file: /usr/local/Cellar/sonar-scanner/3.3.0.1492/libexec/conf/sonar-scanner.properties
INFO: Project root configuration file: /private/var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/sonar-project.properties
INFO: SonarQube Scanner 3.3.0.1492
INFO: Java 1.8.0_212 AdoptOpenJDK (64-bit)
INFO: Mac OS X 10.14.3 x86_64
INFO: User cache: /var/jenkins/.sonar/cache
INFO: SonarQube server 7.7.0
INFO: Default locale: "en_US", source code encoding: "UTF-8" (analysis is platform dependent)
INFO: Load global settings
INFO: Load global settings (done) | time=495ms
INFO: Server id: XXXXXXXXXXXX
INFO: User cache: /var/jenkins/.sonar/cache
INFO: Load/download plugins
INFO: Load plugins index
INFO: Load plugins index (done) | time=122ms
INFO: Load/download plugins (done) | time=168ms
INFO: Loaded core extensions: developer-scanner
INFO: Process project properties
INFO: Execute project builders
INFO: Execute project builders (done) | time=2ms
INFO: Project key: TestCoverage
INFO: Base dir: /private/var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example
INFO: Working dir: /private/var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/.scannerwork
INFO: Load project settings for component key: 'TestCoverage'
INFO: Load project settings for component key: 'TestCoverage' (done) | time=88ms
INFO: Load project branches
INFO: Load project branches (done) | time=86ms
INFO: Load project pull requests
INFO: Load project pull requests (done) | time=84ms
INFO: Load branch configuration
INFO: Load branch configuration (done) | time=3ms
INFO: Load project repositories
INFO: Load project repositories (done) | time=131ms
INFO: Load quality profiles
INFO: Load quality profiles (done) | time=107ms
INFO: Load active rules
INFO: Load active rules (done) | time=2120ms
INFO: Indexing files...
INFO: Project configuration:
INFO: 14 files indexed
INFO: 0 files ignored because of scm ignore settings
INFO: Quality profile for swift: Sonar way
INFO: ------------- Run sensors on module swift-coverage-example
INFO: Load metrics repository
INFO: Load metrics repository (done) | time=89ms
INFO: Sensor JaCoCo XML Report Importer [jacoco]
INFO: Sensor JaCoCo XML Report Importer [jacoco] (done) | time=4ms
INFO: Sensor JavaXmlSensor [java]
INFO: Sensor JavaXmlSensor [java] (done) | time=1ms
INFO: Sensor HTML [web]
INFO: Sensor HTML [web] (done) | time=13ms
INFO: Sensor SonarSwift [swift]
INFO: 3 source files to be analyzed
INFO: Parse coverage report (sonarqube-generic-coverage.xml)
INFO: 3/3 source files have been analyzed
INFO: Sensor SonarSwift [swift] (done) | time=1247ms
INFO: Sensor Generic Coverage Report
INFO: Parsing /private/var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/sonarqube-generic-coverage.xml
INFO: Imported coverage data for 0 files
INFO: Coverage data ignored for 3 unknown files, including:
/var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-example/AppDelegate.swift
/var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-example/AppDelegate2.swift
/var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-exampleTests/swift_coverage_exampleTests.swift
INFO: Sensor Generic Coverage Report (done) | time=16ms
INFO: ------------- Run sensors on project
INFO: Sensor Zero Coverage Sensor
INFO: Sensor Zero Coverage Sensor (done) | time=13ms
INFO: 1 file had no CPD blocks
INFO: Calculating CPD for 2 files
INFO: CPD calculation finished
INFO: Analysis report generated in 100ms, dir size=105 KB
INFO: Analysis report compressed in 40ms, zip size=19 KB
INFO: Analysis report uploaded in 163ms
INFO: ANALYSIS SUCCESSFUL, you can browse https://sonarqube.pgi-tools.com/dashboard?id=TestCoverage
INFO: Note that you will be able to access the updated dashboard once the server has processed the submitted analysis report
INFO: More about the report processing at https://sonarqube.pgi-tools.com/api/ce/task?id=AWp0RE55UBEbit-jKZix
INFO: Analysis total time: 7.705 s
INFO: ------------------------------------------------------------------------
INFO: EXECUTION SUCCESS
INFO: ------------------------------------------------------------------------
INFO: Total time: 9.858s
INFO: Final Memory: 20M/240M
INFO: ------------------------------------------------------------------------

Hi,

You stopped reading just a little bit early. :slight_smile:

Just after the line you quote, is the crux:

Your generic test coverage report gives coverage data for files the analysis doesn’t recognize. Are you sure these paths are correct? Also, the third file listed appears itself to be a test. Since you can’t have coverage of tests, that one should probably be dropped from the report.

 
Ann

The files are definitely there:

 ls -l /var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-exampleTests/swift_coverage_exampleTests.swift 
-rw-r--r--  1 jenkins  wheel  959 May  8 17:15 /var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-exampleTests/swift_coverage_exampleTests.swift
ls -l /var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-example/AppDelegate.swift
-rw-r--r--  1 jenkins  wheel  700 May  8 17:15 /var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-example/AppDelegate.swift
ls -l /var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-example/AppDelegate2.swift 
-rw-r--r--  1 jenkins  wheel  298 May  8 17:15 /var/jenkins/src/sonar-scanning-examples/swift-coverage/swift-coverage-example/swift-coverage-example/AppDelegate2.swift

I had seen the message about about sonar-scanner not recognizing the files but that is another point where I am confused. If I take the same code and run it on another system with the same versions of sonar-scanner, Java, and OS, the analysis completes successfully.

Are there further troubleshooting steps I can take to see what’s happening in more detail with the analysis? I see that there’s a .scannerwork directory, as well as ~/.sonar/. Is there anything in either directory I can look to understand what’s happening during analysis?

Hi,

-Dsonar.verbose=true might help.

 
Ann

Hi @gteshome,

Could you please share how you solved this issue?

Thanks

@DavidHorvath Unfortunately we were never able to figure out a solution. I plan to look at this issue again in a few weeks. I’ll post again if we are able to get a working scan.

Hi,

Which version of XCode is used (on developer workstation where coverage is available and on Jenkins)?
How do you generate coverage report? On the machine of analysis?
Could you share coverage reports? Both working and not working.
Logs of successful analysis should also help.
I see command of sonar-scanner with the options, do you have other options in sonar-project.properties?

A post was split to a new topic: Problem importing coverage for Swift project