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install.sh

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+#!/data/data/com.termux/files/usr/bin/bash
+# -*- coding: utf-8 -*-
+
+function print_ew () {
+
+    if [[ "$1" == "error" ]]; then
+        s_text="\x1b[38;5;1m[ERROR]:";
+        text="$2\n";
+    elif [[ "$1" == "warn" ]]; then
+        s_text="\x1b[38;5;220m[WARNING]:";
+        text="$2\n";
+    elif [[ "$1" == "question" ]]; then
+        s_text="\x1b[38;5;128m[QUESTION]:";
+        text="$2";
+    elif [[ "$1" == "info" ]]; then
+        s_text="\x1b[38;5;83m[Installer thread/INFO]:";
+        text="$2\n";
+    else
+        s_text="\x1b[38;5;31m[$1]:";
+        text="$2\n";
+    fi
+
+    current_time="$( date +"%k:%M:%S" )";
+
+    printf "\x1b[38;5;214m[${current_time}] ${s_text}\x1b[0m \x1b[38;5;87m$text\x1b[0m";
+
+}
+
+if [[ "$(uname -o)" != "Android" ]]; then  # check termux
+    print_ew "error" "this script is for Termux. " && exit 1;
+fi
+
+fn_install () {
+
+    clear;
+
+    directory=ubuntu-fs;
+
+    UBUNTU_VERSION=jammy;
+
+    if [ -d "$directory" ]; then
+        first=1
+        print_ew "warn" "Skipping the download and the extraction"
+    elif [ -z "$(command -v proot)" ]; then
+        print_ew "error" "Please install proot." && exit 1;
+    elif [ -z "$(command -v wget)" ]; then
+        print_ew "error" "Please install wget." && exit 1;
+    fi
+
+    if [ "$first" != 1 ]; then
+        if [ -f "ubuntu.tar.gz" ]; then
+            rm -rf ubuntu.tar.gz > /dev/null 2>&1;
+        fi
+
+        if [ ! -f "ubuntu.tar.gz" ]; then
+
+            print_ew "info" "Downloading the ubuntu rootfs, please wait 2 minute...";
+
+            ARCHITECTURE=$(dpkg --print-architecture);
+
+            case "$ARCHITECTURE" in
+                aarch64)
+                    ARCHITECTURE=arm64 ;;
+                arm)
+                    ARCHITECTURE=armhf ;;
+                amd64|x86_64)
+                    ARCHITECTURE=amd64 ;;
+                *)
+                    print_ew "error" "Unknown architecture :- $ARCHITECTURE" && exit 1 ;;
+            esac
+
+            wget "https://partner-images.canonical.com/core/${UBUNTU_VERSION}/current/ubuntu-${UBUNTU_VERSION}-core-cloudimg-${ARCHITECTURE}-root.tar.gz" -q -O ubuntu.tar.gz;
+
+            print_ew "info" "Download complete!";
+        fi
+
+        cur=`pwd`;
+
+        mkdir -p $directory > /dev/null 2>&1;
+
+        cd $directory;
+
+        print_ew "info" "Decompressing the ubuntu rootfs, please wait...";
+
+        proot --link2symlink tar -zxf $cur/ubuntu.tar.gz --exclude='dev'||:;
+
+        print_ew "info" "The ubuntu rootfs have been successfully decompressed!";
+
+        print_ew "info" "Fixing the resolv.conf, so that you have access to the internet";
+
+        printf "nameserver 8.8.8.8\nnameserver 8.8.4.4\n" > etc/resolv.conf;
+
+        stubs=();
+
+        stubs+=('usr/bin/groups');
+
+        for f in ${stubs[@]};do
+            print_ew "info" "Writing stubs, please wait...";
+            echo -e "#!/bin/sh\nexit" > "$f";
+        done
+
+        print_ew "info" "Successfully wrote stubs!";
+        
+        cd $cur;
+
+    fi
+
+    mkdir -p ubuntu-binds;
+
+    bin=start.sh;
+
+    print_ew "info" "Creating the start script, please wait...";
+
+    cat > $bin <<- EOM
+#!/bin/bash
+# -*- coding: utf-8 -*-
+
+cd \$(dirname \$0);
+
+## unset LD_PRELOAD in case termux-exec is installed
+unset LD_PRELOAD;
+command="proot";
+
+## uncomment following line if you are having FATAL: kernel too old message.
+#command+=" -k 4.14.81";
+command+=" --link2symlink";
+command+=" -0";
+command+=" -r $directory";
+
+if [ -n "\$(ls -A ubuntu-binds)" ]; then
+    for f in ubuntu-binds/* ;do
+      . \$f;
+    done
+fi
+
+command+=" -b /dev";
+command+=" -b /proc";
+command+=" -b /sys";
+command+=" -b ubuntu-fs/tmp:/dev/shm";
+command+=" -b /data/data/com.termux";
+command+=" -b /:/host-rootfs";
+command+=" -b /sdcard";
+command+=" -b /storage";
+command+=" -b /mnt";
+command+=" -w /root";
+command+=" /usr/bin/env -i";
+command+=" HOME=/root";
+command+=" PATH=/usr/local/sbin:/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/games:/usr/local/games";
+command+=" TERM=\$TERM";
+command+=" LANG=C.UTF-8";
+command+=" /bin/bash --login";
+com="\$@";
+
+if [ -z "\$1" ]; then
+    exec \$command;
+else
+    \$command -c "\$com";
+fi
+EOM
+
+    print_ew "info" "The start script has been successfully created!";
+
+    print_ew "info" "Fixing shebang of start.sh, please wait...";
+    
+    termux-fix-shebang $bin > /dev/null 2>&1;
+    
+    print_ew "info" "Successfully fixed shebang of start.sh!";
+
+    print_ew "info" "Making start.sh executable please wait...";
+
+    chmod +x $bin > /dev/null 2>&1;
+
+    print_ew "info" "Successfully made start.sh executable";
+
+    print_ew "info" "Cleaning up please wait...";
+
+    rm ubuntu.tar.gz -rf > /dev/null 2>&1;
+
+    print_ew "info" "Successfully cleaned up!";
+
+    print_ew "info" "installation completed! Run => bash start.sh";
+
+    rm -rf .git 2>&1;
+
+}
+
+trap '' 2
+
+    if [ "$1" == "-y" ]; then
+        fn_install;
+    elif [ "$1" == "" ]; then
+        print_ew "question" "Do you want to install ubuntu-in-termux? [Y/n] " && read cmd;
+        if [ "$cmd" == "y" ]; then
+            fn_install;
+        elif [ "$cmd" == "Y" ]; then
+            fn_install;
+        else
+            print_ew "error" "Installation aborted.";
+        fi
+    else
+        print_ew "error" "Installation aborted.";
+    fi