Building Cronet (on iOS)

Get source and dependencies

source

• Install depot_tools per https://chromium.googlesource.com/chromium/src/+/main/docs/ios/build_instructions.md
• Make directory for the chromium source, and then fetch:

    ~ $ mkdir chromium && cd chromium
    ~/chromium $ fetch --nohooks ios

• Enter the ./src directory:

    ~/chromium $ cd src

deps

• Download the depenedencies

    ~/chromium/src $ gclient sync

Build it!

• We'll be using it a bunch, so you may want to put cr_cronet.py in your path. Of course, you can just use its full name every time if you want...

    ~/chromium/src $ ln -s /path/to/components/cronet/tools/cr_cronet.py /somewhere/in/your/path

or however else you want to do this

This sets up the build directory...

    ~/chromium/src $ cr_cronet.py gn

...and this builds it!

    ~/chromium/src $ cr_cronet.py build -d out/Debug-iphonesimulator

• You can also use build-test to run tests on the simulator

    ~/chromium/src $ cr_cronet.py build-test -d out/Debug-iphonesimulator

• If you want to deploy to hardware, you will have to set up XCode for deploying to hardware, and then use cr_cronet.py gn with the -i flag (for iphoneos build), and cr_cronet.py build with either the -i flag, or using the out/Debug-iphoneos directory.

    ~/chromium/src $ cr_cronet.py gn -i

and then

    ~/chromium/src $ cr_cronet.py build -i

or

    ~/chromium/src $ cr_cronet.py build -d out/Debug-iphoneos

Updating

• Acquire the most recent version of the source with:

    ~/chromium/src $ cr_cronet.py sync

and then rebuild:

    ~/chromium/src $ cr_cronet.py build -d out/Debug-iphoneos
    ~/chromium/src $ cr_cronet.py build -d out/Debug-iphonesimulator

For more information, you can run

    ~ $ cr_cronet.py -h