ajout de Sheebr + support de shutdown + auto install kernel

rootfs overrides/usr/bin/echo.js

@@ -0,0 +1,3 @@
+if(process.argv.length >= 3){
+    console.log(process.argv[3])
+}

rootfs overrides/usr/bin/ls.js

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+const fs = require('fs')
+
+let path = process.argv[3] ?? '.'
+let optionsArray = process.argv.slice(4) ?? []
+let options = []
+for(let option of optionsArray){
+    if(option.startwith("--")) options.push(option.slice)
+    else if(options.startwith("-")) options.push += option.slice(1).split('').map(el => {return '-' + el})
+}
+
+const files = fs.readdirSync(path);
+const nonHiddenFiles = files.filter(file => file[0] != '.')
+
+console.log(options.includes('-a') ? files.join('  ') : nonHiddenFiles.join('  '))

rootfs overrides/usr/bin/mkdir.js

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+const fs = require('fs')
+if(process.argv.length >= 3){
+    fs.mkdir(process.argv[3], { recursive: true }, (err) => {
+        if (err) throw err;
+      });
+}

rootfs overrides/usr/bin/pwd.js

@@ -0,0 +1 @@
+console.log(process.cwd())

rootfs overrides/usr/bin/sheebr.js

@@ -0,0 +1,60 @@
+const { Lexer } = require('../lib/sheebr/lexer')
+const { getline } = require('../lib/sheebr/utils')
+const fs = require('fs')
+const environment = require('../lib/sheebr/environment')
+const readline = require('readline').createInterface({
+    input: process.stdin,
+    output: process.stdout,
+    terminal: false
+});
+const readlineSync = require('../lib/sheebr/readLineSync')
+let execSync = require('child_process').execSync
+
+
+let current_dir = process.cwd()
+
+start()
+
+async function start(){
+    while(true){
+        input = await getline("sheebr> ");
+        if(input == "exit") break;
+        else evaluate(input);
+    }
+}
+
+function evaluate(input){
+    let lexer = new Lexer(input)
+    args = lexer.scanTokens()
+
+    if(args[0] == "cd"){
+        if(args.length != 2){
+            console.log("Wrong number of arguments"); return;}
+        if(!fs.existsSync(args[1])){console.log("Folder does not exist"); return;}
+        current_dir = args[1][0] == "/" ? args[1] : current_dir + '/' + args[1];
+        console.log(current_dir)
+        return;
+    }
+    // check for all folders in path
+
+    let found = false;
+    for(let path of environment.path){
+        let tobreak = false;
+        const files = fs.readdirSync(path);
+        if(files.includes(`${args[0]}.js`)){
+            found = true;
+            script = execSync(`node ${path + '/' + args[0]}.js ${args.map(arg => {return arg.includes(' ') ? `"${arg}"` : arg}).join(' ')}`, {cwd: current_dir});
+            process.stdout.write(script)
+            tobreak = true;
+        }
+
+        if(tobreak) break;
+    }
+    if(!found){
+        console.log("Program not found")
+    }
+    let program = args[0]
+}
+
+
+

rootfs overrides/usr/bin/touch.js

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+const fs = require('fs')
+if(process.argv.length >= 3){
+    fs.openSync(process.argv[3], 'w');
+}

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

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+let environment = {
+    path: ["/sheebr", "/usr/bin"]
+}
+
+module.exports  = environment

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

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+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

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+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
+
+}