[azure-pipelines | analyzer] Integrate Code Coverage

[Raffaello]

Scenario:
Linux CI images are probably headless and no video drivers, so impossible to init SDL2 for testing.
consequently:

• compiling with GCC in Windows or Mac
• MinGW (it might not worth it) [ error: unreference winMain]
• GCC on macOS (this might be closer to linux, less compatibility problems) [problem linking the dependeny.. should i force to compile them in GCC? try]
• use codecov
• use sonarcloud

---

[Optional] Try other CI tools

• travis
• [ ] CircleCI
• container CI build? [not yet supported windows host container linux]

---

• clang code coverage

[Raffaello]

this is the snippet (BASH/UNIX-Debian) to generate and publish results in codecov

sudo apt-get install -y lcov 
#find . -name *gcda
lcov --capture --directory . --output-file coverage.info
lcov --remove coverage.info '/usr/*' --output-file coverage.info # filter system-files
lcov --list coverage.info # debug info
bash <(curl -s https://codecov.io/bash) -t [codecov token]

[Raffaello]

too many linking problem just to compile it and not a way to have on local env at the moment.
should try once a container test for linux to run on a windows or mac vm, if that is possible than should be ok

ref:
https://docs.microsoft.com/en-us/azure/devops/pipelines/process/container-phases?view=azure-devops

Container Jobs in Azure Pipelines and TFS - Azure Pipelines

Run pipeline jobs inside of a container

[Raffaello]

check this one now:

https://llvm.org/docs/CommandGuide/llvm-cov.html

llvm-cov - emit coverage information — LLVM 10 documentation

[Raffaello]

this is the snippet (BASH/UNIX-Debian) to generate and publish results in codecov

sudo apt-get install -y lcov 
#find . -name *gcda
lcov --capture --directory . --output-file coverage.info
lcov --remove coverage.info '/usr/*' --output-file coverage.info # filter system-files
lcov --list coverage.info # debug info
bash <(curl -s https://codecov.io/bash) -f coverage.info -t [codecov token]

for clang:
codecov/codecov-python#52 (comment)

[Raffaello]

https://www.jetbrains.com/help/clion/code-coverage-clion.html

Code Coverage - Help | CLion

[Raffaello]

try this:
https://clang.llvm.org/docs/SourceBasedCodeCoverage.html

Source-based Code Coverage — Clang 11 documentation