156 lines
4.7 KiB
Markdown
156 lines
4.7 KiB
Markdown
# lbry-android development environment inside docker
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[scripts/lbry-android.sh](scripts/lbry-android.sh) is a bash script to create a
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docker container for lbry-android development.
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This is a hybrid approach where the apk is built inside docker, but you run
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Android Studio, `adb`, and the app hot-reload bundler, directly on your host.
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## Features
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* Clones lbry-android source code to a directory on the host, and mounts it
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inside the container.
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* Installs all build dependencies inside the container, leaving your host
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computer clean.
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* Mounted `.buildozer` directory to save container space. (Docker containers
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should stay under 10GB, and `.buildozer` is too big, so it has to stay in a
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mounted host directory instead.)
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* The biggest downloads are cached in `.buildozer-downloads` directory so you
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can easily remove `.buildozer` and not have to re-download the large cryostax
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NDK more than once.
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* Instructions for installing on a real Android device, and for setting up
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hot-reload.
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* Only a handful of commands to go from zero->hero.
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## Requirements
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Install all of the following on your host computer:
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* Tested on Linux x86_64 with BASH.
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* [Install Android Studio](https://developer.android.com/studio/).
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* The normal install auto-creates a directory in `$HOME/Android/Sdk` to store
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SDK downloads in your home directory.
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* [Install nodejs](https://nodejs.org/en/download/package-manager/).
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* [Install yarn](https://yarnpkg.com/lang/en/docs/install).
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* [Install Docker](https://docs.docker.com/install/).
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* Install `sudo` and give your user account access to run `sudo docker`.
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## Install
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Clone `lbry-android`:
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```
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LBRY_GIT=$HOME/git/vendor/lbryio/
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mkdir -p $LBRY_GIT
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git clone https://github.com/lbryio/lbry-android.git $LBRY_GIT/lbry-android
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cd $LBRY_GIT/lbry-android
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git submodule update --init --recursive
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```
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Install a bash alias to the [scripts/lbry-android.sh](scripts/lbry-android.sh)
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script:
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```
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echo "alias lbry-android=$LBRY_GIT/lbry-android/scripts/lbry-android.sh" >> $HOME/.bashrc
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source ~/.bashrc
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```
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## Usage
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* First create the base docker image:
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```
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lbry-android docker-build
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```
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(If anytime you change the docker build scripts in the [scripts](scripts)
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subdirectory, you should rebuild the image again.)
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* Setup buildozer and install dependencies:
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```
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lbry-android setup
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```
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* Build the apk:
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```
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lbry-android build
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```
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The apk will be built and end up in the `lbry-android/bin/` subdirectory.
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## Running on a real Android device
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Once you have the apk built, you can install it on a real Android device to
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start testing.
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Follow the Android documentation for [enabling USB
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debugging](https://developer.android.com/studio/command-line/adb#Enabling) on
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your device.
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Once you have enabled debugging, do the following:
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* Plug your device into a USB port on the host computer.
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* Run:
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```~/Android/Sdk/platform-tools/adb devices```
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* ADB should list your device like so:
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```
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[ryan@t440s lbry-android]$ adb devices
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List of devices attached
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HT71R0000000 device
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```
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* The first time you connect, you should see a modal dialog on the device
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asking to confirm the host id. You must approve it, or adb will fail to
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connect.
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* If after trying several times, adb is still not connecting to your device,
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and adb lists your device as `unauthorized`, you may need to [follow this
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advice](https://stackoverflow.com/a/38380384/56560) and delete your
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`$HOME/.android` directory.
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* Install the apk (whatever the current version is called) to the device:
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```
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~/Android/Sdk/platform-tools/adb install ./bin/browser-0.7.5-debug.apk
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```
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* Open the app on your device, and follow the initial steps to get to the main
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lbry-android browser page.
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* Create a tcp tunnel over the adb bridge, for the app to handle live-reload:
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```
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~/Android/Sdk/platform-tools/adb reverse tcp:8081 tcp:8081
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```
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* Start the live-reload server on the host:
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```
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cd app/
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yarn install
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yarn start
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```
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* With your device currently running the lbry-android app, shake the device
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from side to side, and a menu will appear. Choose `Enable Hot Reloading`.
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* The app should reload itself.
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* Now make a change to the source code to test hot reload. From the host, open
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up the main page view source code: `app/src/component/uriBar/view.js`. Find
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the line that reads `Search movies, music, and more` (This is the main search
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bar at the top of the app.) - Change some of the text and save the file.
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* If hot-reload is working, within a few seconds the phone should reload the
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page automatically and show the change that you made.
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* If the hot-reload does not work, try closing the app (dismiss the window from
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the tab overview, via android square button) and reload the app.
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