wip: implementing install script

extra/install.batsh

@@ -7,7 +7,7 @@ println("=====================");
 println("");
 println("---------------------------------------");
 println("This script is designed for Linux and basic usage.");
-println("Tested with CentOS 7/8");
+println("Supported OS: CentOS 7/8, Ubuntu >= 16.04 and Debian");
 println("For advanced usage, please go to https://github.com/louislam/uptime-kuma/wiki/Installation");
 println("---------------------------------------");
 println("");
@@ -21,8 +21,64 @@ if ("$1" != "") {
     call("read", "-p", "Which installation method do you prefer? [DOCKER/local]: ", "type");
 }
 
+defaultPort = "3001";
+
+function checkNode() {
+    bash("nodeVersion=$(node -e 'console.log(process.versions.node.split(`.`)[0])')");
+    println("Node Version: " ++ nodeVersion);
+
+    if (nodeVersion < "12") {
+        println("Error: Required Node.js 14");
+        call("exit", "1");
+    }
+
+    if (nodeVersion == "12") {
+        println("Warning: NodeJS " ++ nodeVersion ++ " is not tested.");
+    }
+}
+
+function deb() {
+    bash("nodeCheck=$(node -v)");
+    bash("apt --yes update");
+
+    if (nodeCheck != "") {
+        checkNode();
+    } else {
+
+        // Old nodejs binary name is "nodejs"
+        bash("check=$(nodejs --version)");
+        if (check != "") {
+            println("Error: 'node' command is not found, but 'nodejs' command is found. Your NodeJS should be too old.");
+            bash("exit 1");
+        }
+
+        bash("curlCheck=$(curl --version)");
+        if (curlCheck == "") {
+            println("Installing Curl");
+            bash("apt --yes install curl");
+        }
+
+        println("Installing Node.js 14");
+        bash("curl -sL https://deb.nodesource.com/setup_14.x | bash - > log.txt");
+        bash("apt --yes install nodejs");
+        bash("node -v");
+
+        bash("nodeCheckAgain=$(node -v)");
+
+        if (nodeCheckAgain == "") {
+            println("Error during Node.js installation");
+            bash("exit 1");
+        }
+    }
+
+    bash("check=$(git --version)");
+    if (check == "") {
+        println("Installing Git");
+        bash("apt --yes install git");
+    }
+}
+
 if (type == "local") {
-    defaultPort = "3001";
     defaultInstallPath = "/opt/uptime-kuma";
 
     if (exists("/etc/redhat-release")) {
@@ -34,7 +90,9 @@ if (type == "local") {
         if (os == "Ubuntu") {
             distribution = "ubuntu";
         }
-
+        if (os == "Debian") {
+            distribution = "debian";
+        }
     }
 
     bash("arch=$(uname -i)");
@@ -63,21 +121,12 @@ if (type == "local") {
         }
     }
 
+    // CentOS
     if (distribution == "rhel") {
         bash("nodeCheck=$(node -v)");
 
         if (nodeCheck != "") {
-            bash("nodeVersion=$(node -e 'console.log(process.versions.node.split(`.`)[0])')");
-            println("Node Version: " ++ nodeVersion);
-
-            if (nodeVersion < "12") {
-                println("Error: Required Node.js 14");
-                call("exit", "1");
-            }
-
-            if (nodeVersion == "12") {
-                println("Warning: NodeJS " ++ nodeVersion ++ " is not tested.");
-            }
+            checkNode();
         } else {
 
             bash("curlCheck=$(curl --version)");
@@ -105,28 +154,81 @@ if (type == "local") {
             bash("yum -y -q install git");
         }
 
-        bash("check=$(pm2 --version)");
+    // Ubuntu
+    } else if (distribution == "ubuntu") {
+        deb();
+
+    // Debian
+    } else if (distribution == "debian") {
+        deb();
+
+    } else {
+        // Unknown distribution
+        error = 0;
+
+        bash("check=$(git --version)");
         if (check == "") {
-            println("Installing PM2");
-            bash("npm install pm2 -g");
-            bash("pm2 startup");
+            error = 1;
+            println("Error: git is missing");
         }
 
-        bash("mkdir -p $installPath");
-        bash("cd $installPath");
-        bash("git clone https://github.com/louislam/uptime-kuma.git .");
-        bash("npm run setup");
+        bash("check=$(node -v)");
+        if (check == "") {
+            error = 1;
+            println("Error: node is missing");
+        }
 
-        bash("pm2 start npm --name uptime-kuma -- run start-server -- --port=$port");
-        bash("pm2 list");
-    }
-
-   if (distribution == "ubuntu") {
-        println("TODO");
-        // TODO
+        if (error > 0) {
+            println("Please install above missing software");
+            bash("exit 1");
+        }
    }
 
+   bash("check=$(pm2 --version)");
+   if (check == "") {
+       println("Installing PM2");
+       bash("npm install pm2 -g");
+       bash("pm2 startup");
+   }
+
+   bash("mkdir -p $installPath");
+   bash("cd $installPath");
+   bash("git clone https://github.com/louislam/uptime-kuma.git .");
+   bash("npm run setup");
+
+   bash("pm2 start npm --name uptime-kuma -- run start-server -- --port=$port");
+
 } else {
-    call("read", "-p", "Expose Port [3001]: ", "port");
-    call("read", "-p", "Volume Name [uptime-kuma]: ", "volume");
+    defaultVolume = "uptime-kuma";
+
+    bash("check=$(docker -v)");
+    if (check == "") {
+        println("Error: docker is not found!");
+        bash("exit 1");
+    }
+
+    if ("$3" != "") {
+        port = "$3";
+    } else {
+        call("read", "-p", "Expose Port [$port]: ", "port");
+
+        if (port == "") {
+            port = defaultPort;
+        }
+    }
+
+    if ("$2" != "") {
+        volume = "$2";
+    } else {
+        call("read", "-p", "Volume Name [$defaultVolume]: ", "volume");
+
+        if (volume == "") {
+            volume = defaultVolume;
+        }
+    }
+
+    println("Port: $port");
+    println("Volume: $volume");
+    bash("docker volume create $volume");
+    bash("docker run -d --restart=always -p $port:3001 -v $volume:/app/data --name uptime-kuma louislam/uptime-kuma:1");
 }