ajout de Sheebr + support de shutdown + auto install kernel

rootfs overrides/usr/lib/sheebr/environment.js

@@ -0,0 +1,5 @@
+let environment = {
+    path: ["/sheebr", "/usr/bin"]
+}
+
+module.exports  = environment

rootfs overrides/usr/lib/sheebr/lexer.js

@@ -0,0 +1,57 @@
+const { isAlpha } = require('./utils')
+
+
+class Lexer{
+		constructor(source){
+				this.tokens = [];
+				this.current = 0;
+				this.start = 0;
+				this.source = source
+		}
+
+		scanTokens(){
+			while(this.current < this.source.length){
+				this.start = this.current
+				this.scanToken()
+
+			}
+			return this.tokens;
+		}
+
+		scanToken(){
+
+			if(this.source[this.current] == "\""){
+				this.string()
+			}
+			else{
+				let content = ""
+				while(this.source[this.current] != ' ' && this.source[this.current] != '\n' && this.current < this.source.length ){
+					content += this.source[this.current];
+					this.current++;
+
+				}
+				this.tokens.push(content)
+			}
+			this.current++;
+
+		}
+
+		string(){
+			this.current++;
+			let content = ""
+			while(this.source[this.current] != "\"" && this.current < this.source.length){
+				content += this.source[this.current];
+				this.current++;
+			}
+			this.tokens.push(content)
+		}
+
+		addToken(tokenType, value=""){
+			this.tokens.push(Token(tokenType, value))
+		}
+}
+
+
+module.exports = {
+	Lexer
+}

rootfs overrides/usr/lib/sheebr/utils.js

@@ -0,0 +1,31 @@
+async function getline(str) {
+    process.stdout.write(str)
+    process.stdin.resume();
+    process.stdin.setEncoding('utf8')
+    let line = ""
+    return new Promise((res, rej) => {
+        process.stdin.on('data', function(chunk) {
+
+            line += chunk
+            if (chunk.toString('utf-8').endsWith('\n')) {
+                process.stdin.pause()
+                res(line.substring(0, line.length -1))
+            }
+        })
+        process.stdin.on('error', function(err) {
+            rej(err)
+        })
+    })
+}
+
+function isAlpha(str){
+    return /^[a-zA-Z]*$/.test(str);
+}
+
+
+
+
+module.exports = {
+    isAlpha, getline
+
+}