research how to go faster in mobile development #151

New Issue

despiegk · 2024-12-29T20:58:49Z

despiegk commented

2024-12-29 20:58:49 +00:00

1. poc flutter installer for termux (android)

can we make a flutter app which checks termux is installed, if not ask to install
then once installed can we automate e.g. the deployment of the script below
can we manage the dir's which termux uses, in other words can we install more than 1 session
can we from flutter execute commands in the termux

1.b. use adb

see how we can use adb to do same as above
install the termux
get the bash script in termux
basically developers can with nothing as adb drive everything we need

2. compatibility of our compile in termux

installing in termux e.g. rust or vlang works very well
if we compile an example small app static, can we copy it out and use directly from the flutter app on the host os
- in other words if we would bundle the binary e.g. vlang bin, can we talk to it over e.g. openrpc over sockets or command line with json in/out or ... , basically we are testing here if for development we can do in termux and then bundle with the flutter app so we can go faster?

3. fork termux

how easy is it to fork a termux, so we e.g run it underneith another app and don't show the inside
we could use this to run our stuff like in a sandbox, still compatible with linux
and packag it as apk ourselves
if easy can we make procedure how to do it on an ubuntu 24.04 inside our grid

4. vab

can we test https://github.com/vlang/vab/tree/master
can we directly compile vlang for android
see how to do this on cloud linux machine in tfgrid, document all properly
some v-scripts would be ideal

5. vlang & ios

how can we get vlang compiled or rust compiled progs to work in ios? if at all?
is less important because our secure phones will be android

6. grid as build env for mobile development

a script to deploy a VM on tfgrid
deploy full build env which can compile rust, vlang & flutter all for mobile (reproducible ideal would be vsh - vlang script)
then compile example apps and bundle them inside flutter and create apk
install codeserver (vscode, see what is best version), so its easy for people to collab on it
we basically compile for android on a cloud machine

IMPLEMENTATION INFO

driver of the script

this starts a webserver which then allows the install of the script below in termux (script was called termuxinstall.sh)

we install in termux through curl -s http://$ip_addr:8080/termuxinstall.sh > /install.sh && bash /install.sh

the webserver:

#!/bin/bash

# Get IP address
ip_addr=$(ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -n 1)

if [ -z "$ip_addr" ]; then
    echo "Could not determine IP address"
    exit 1
fi

echo "Starting HTTP server..."
echo "Your IP address is: $ip_addr"
echo "Server will be available at: http://$ip_addr:8080/termuxinstall.sh"
echo ""
echo "To download and run the script, use:"
echo "curl -s http://$ip_addr:8080/termuxinstall.sh > /install.sh && bash /install.sh"

# Change to the tools directory and start the server
cd "$(dirname "$0")" && pnpm dlx http-server . -p 8080

example script to install in termux

the termuxinstall.sh:

#!/bin/bash
set -ex

# Ensure script is executed in Termux
if [ -z "$TERMUX_VERSION" ]; then
  echo "This script must be run in Termux. Exiting."
  exit 1
fi

# Function to handle errors
handle_error() {
  echo "Error: $1"
  exit 1
}

# Update and upgrade packages using Termux package management
echo "Updating package list and upgrading installed packages..."
pkg update -y || handle_error "Failed to update package list"
pkg upgrade -y || handle_error "Failed to upgrade packages"

# Install essential utilities
echo "Installing utilities: mc, htop, wget, curl..."
pkg install -y mc htop wget curl termux-gui-bash || handle_error "Failed to install utilities"

# Install OpenSSH SSH server
echo "Installing OpenSSH SSH server..."
pkg install -y openssh || handle_error "Failed to install OpenSSH"

# Define SSH port
SSH_PORT=8022  # Termux default port

# Check and handle existing dropbear
if command -v dropbear >/dev/null 2>&1; then
    echo "Found existing dropbear installation, removing..."
    if pgrep dropbear >/dev/null; then
        pkill dropbear || handle_error "Failed to stop dropbear"
    fi
    pkg uninstall -y dropbear || handle_error "Failed to uninstall dropbear"
fi

# Setup SSH directory and authorized_keys
SSHDIR="$HOME/.ssh"
mkdir -p "$SSHDIR"
chmod 700 "$SSHDIR"

# Add authorized key
echo "Adding authorized SSH key..."
AUTHKEYS="$SSHDIR/authorized_keys"
echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIahWiRRm9cWAKktH9dndn3R45grKqzPC3mKX8IjGgH6 kristof@incubaid.com" > "$AUTHKEYS"
chmod 600 "$AUTHKEYS"

# Set password non-interactively (Termux specific)
echo "Setting default password..."
export PASSWORD="planet007"
(echo "${PASSWORD}"; echo "${PASSWORD}") | passwd || handle_error "Failed to set password"

# Start SSH server
echo "Starting SSH server on port $SSH_PORT..."
sshd -p $SSH_PORT || handle_error "Failed to start SSH server"

termux-setup-storage


pkg install libgc rust

# Display the current IP address
echo "Fetching IP address..."
IP_ADDR=$(ifconfig 2>/dev/null | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -n 1)
if [ -z "$IP_ADDR" ]; then
    echo "Could not determine IP address automatically"
    echo "Please check your IP address manually using 'ip addr'"
else
    echo "Your IP address is: $IP_ADDR"
    echo ""
    echo "SSH connection details:"
    echo "  - Host: $IP_ADDR"
    echo "  - Port: $SSH_PORT"
    echo "  - Password: planet007"
    echo "  - Key authentication is enabled"
    echo ""
    echo "Example SSH commands:"
    echo "  With password: ssh user@$IP_ADDR -p $SSH_PORT"
    echo "  With key: ssh -i /path/to/private/key user@$IP_ADDR -p $SSH_PORT"
fi

echo "Setup completed successfully!"

## 1. poc flutter installer for termux (android) - can we make a flutter app which checks termux is installed, if not ask to install - then once installed can we automate e.g. the deployment of the script below - can we manage the dir's which termux uses, in other words can we install more than 1 session - can we from flutter execute commands in the termux ## 1.b. use adb - see how we can use adb to do same as above - install the termux - get the bash script in termux - basically developers can with nothing as adb drive everything we need ## 2. compatibility of our compile in termux - installing in termux e.g. rust or vlang works very well - if we compile an example small app static, can we copy it out and use directly from the flutter app on the host os - in other words if we would bundle the binary e.g. vlang bin, can we talk to it over e.g. openrpc over sockets or command line with json in/out or ... , basically we are testing here if for development we can do in termux and then bundle with the flutter app so we can go faster? ## 3. fork termux - how easy is it to fork a termux, so we e.g run it underneith another app and don't show the inside - we could use this to run our stuff like in a sandbox, still compatible with linux - and packag it as apk ourselves - if easy can we make procedure how to do it on an ubuntu 24.04 inside our grid ## 4. vab - can we test https://github.com/vlang/vab/tree/master - can we directly compile vlang for android - see how to do this on cloud linux machine in tfgrid, document all properly - some v-scripts would be ideal ## 5. vlang & ios - how can we get vlang compiled or rust compiled progs to work in ios? if at all? - is less important because our secure phones will be android ## 6. grid as build env for mobile development - a script to deploy a VM on tfgrid - deploy full build env which can compile rust, vlang & flutter all for mobile (reproducible ideal would be vsh - vlang script) - then compile example apps and bundle them inside flutter and create apk - install codeserver (vscode, see what is best version), so its easy for people to collab on it - we basically compile for android on a cloud machine # IMPLEMENTATION INFO ### driver of the script this starts a webserver which then allows the install of the script below in termux (script was called termuxinstall.sh) we install in termux through ```curl -s http://$ip_addr:8080/termuxinstall.sh > /install.sh && bash /install.sh``` the webserver: ```bash #!/bin/bash # Get IP address ip_addr=$(ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -n 1) if [ -z "$ip_addr" ]; then echo "Could not determine IP address" exit 1 fi echo "Starting HTTP server..." echo "Your IP address is: $ip_addr" echo "Server will be available at: http://$ip_addr:8080/termuxinstall.sh" echo "" echo "To download and run the script, use:" echo "curl -s http://$ip_addr:8080/termuxinstall.sh > /install.sh && bash /install.sh" # Change to the tools directory and start the server cd "$(dirname "$0")" && pnpm dlx http-server . -p 8080 ``` ### example script to install in termux the termuxinstall.sh: ```bash #!/bin/bash set -ex # Ensure script is executed in Termux if [ -z "$TERMUX_VERSION" ]; then echo "This script must be run in Termux. Exiting." exit 1 fi # Function to handle errors handle_error() { echo "Error: $1" exit 1 } # Update and upgrade packages using Termux package management echo "Updating package list and upgrading installed packages..." pkg update -y || handle_error "Failed to update package list" pkg upgrade -y || handle_error "Failed to upgrade packages" # Install essential utilities echo "Installing utilities: mc, htop, wget, curl..." pkg install -y mc htop wget curl termux-gui-bash || handle_error "Failed to install utilities" # Install OpenSSH SSH server echo "Installing OpenSSH SSH server..." pkg install -y openssh || handle_error "Failed to install OpenSSH" # Define SSH port SSH_PORT=8022 # Termux default port # Check and handle existing dropbear if command -v dropbear >/dev/null 2>&1; then echo "Found existing dropbear installation, removing..." if pgrep dropbear >/dev/null; then pkill dropbear || handle_error "Failed to stop dropbear" fi pkg uninstall -y dropbear || handle_error "Failed to uninstall dropbear" fi # Setup SSH directory and authorized_keys SSHDIR="$HOME/.ssh" mkdir -p "$SSHDIR" chmod 700 "$SSHDIR" # Add authorized key echo "Adding authorized SSH key..." AUTHKEYS="$SSHDIR/authorized_keys" echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIahWiRRm9cWAKktH9dndn3R45grKqzPC3mKX8IjGgH6 kristof@incubaid.com" > "$AUTHKEYS" chmod 600 "$AUTHKEYS" # Set password non-interactively (Termux specific) echo "Setting default password..." export PASSWORD="planet007" (echo "${PASSWORD}"; echo "${PASSWORD}") | passwd || handle_error "Failed to set password" # Start SSH server echo "Starting SSH server on port $SSH_PORT..." sshd -p $SSH_PORT || handle_error "Failed to start SSH server" termux-setup-storage pkg install libgc rust # Display the current IP address echo "Fetching IP address..." IP_ADDR=$(ifconfig 2>/dev/null | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -n 1) if [ -z "$IP_ADDR" ]; then echo "Could not determine IP address automatically" echo "Please check your IP address manually using 'ip addr'" else echo "Your IP address is: $IP_ADDR" echo "" echo "SSH connection details:" echo " - Host: $IP_ADDR" echo " - Port: $SSH_PORT" echo " - Password: planet007" echo " - Key authentication is enabled" echo "" echo "Example SSH commands:" echo " With password: ssh user@$IP_ADDR -p $SSH_PORT" echo " With key: ssh -i /path/to/private/key user@$IP_ADDR -p $SSH_PORT" fi echo "Setup completed successfully!" ```

despiegk commented

2024-12-30 07:36:02 +00:00

https://github.com/termux/termux-app/wiki/RUN_COMMAND-Intent

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