PRE-ALPHA 3.0.0 - Rewrote the kernel to use a more modular design, changed some terms, added process sandboxing for security.

COMING IN THE FULL RELEASE: - A user system - A functional IPC (Inter-Process Communication) system THINGS CAN AND WILL CHANGE FROM NOW UNTIL THE FINAL RELEASE.
2025-08-17 16:38:08 +03:00
parent fdc54a8839
commit cbf25999f0
52 changed files with 1232 additions and 955 deletions
@@ -0,0 +1,104 @@
+local fs = require("filesystem")
+local json = require("json")
+local handle, data, tmpdata = fs.open("/halyde/config/shell.json", "r"), "", nil
+repeat
+  tmpdata = handle:read(math.huge)
+  data = data .. (tmpdata or "")
+until not tmpdata
+handle:close()
+local shellcfg = json.decode(data)
+local component = require("component")
+local gpu = component.gpu
+
+_G.shell = {}
+_G.shell.workingDirectory = shellcfg["defaultWorkingDirectory"]
+_G.shell.aliases = shellcfg["aliases"]
+
+local function runAsTask(path, ...)
+  --ocelot.log("running " .. path .. " as coroutine")
+  tsched.runAsTask(path, ...)
+  local corIndex = #tsched.getTasks()
+  local task = tsched.getTasks()[#tsched.getTasks()]
+  repeat
+    coroutine.yield()
+  until tsched.getTasks()[corIndex] ~= task
+end
+
+function _G.shell.run(command)
+  checkArg(1, command, "string")
+  if shell.aliases[command:match("[^ ]+")] then
+    local _, cmdend = command:find("[^ ]+")
+    command = shell.aliases[command:match("[^ ]+")] .. command:sub(cmdend + 1)
+  end
+  local gm, result, args, trimmedCommand = command:gmatch("[^ ]+"), nil, {}, command
+  while true do
+    result = gm()
+    if not result then
+      break
+    end
+    if result:find('"') then
+      local location = trimmedCommand:find('"')
+      local argBefore = result:sub(1, result:find('"') - 1) -- edge case where there is no space before the quote, get the argument there
+      if argBefore and argBefore ~= "" then
+        table.insert(args, argBefore)
+      end
+      trimmedCommand = trimmedCommand:sub(location + 1)
+      if trimmedCommand:find('"') then
+        table.insert(args, trimmedCommand:sub(1, trimmedCommand:find('"') - 1))
+        trimmedCommand = trimmedCommand:sub(trimmedCommand:find('"') + 1)
+        gm = trimmedCommand:gmatch('[^ ]+')
+      else
+        print("\27[91mmalformed shell command")
+        return
+      end
+    else
+      table.insert(args, result)
+    end
+  end
+  -- execute the program
+  local PATH = table.copy(shellcfg.path)
+  table.insert(PATH, shell.workingDirectory)
+  if not args[1] then
+    return
+  end
+  if fs.exists(args[1]) and not fs.isDirectory(args[1]) then
+    local path = args[1]
+    table.remove(args, 1)
+    runAsTask(path, table.unpack(args))
+    return
+  end
+  for _, item in pairs(PATH) do
+    if fs.exists(item..args[1]) and not fs.isDirectory(item .. args[1]) then
+      local path = fs.concat(item, args[1])
+      table.remove(args, 1)
+      runAsTask(path, table.unpack(args))
+      return
+    else -- try to look for it without the file extension
+      local files = fs.list(item) or {}
+      for _, file in pairs(files) do
+        -- previous pattern: (.+)%.[^%.]+$
+        if args[1] == file:match("(.+)%.[^%.]+$") and not fs.isDirectory(item .. file) then
+          table.remove(args, 1)
+          runAsTask(item .. file, table.unpack(args))
+          return
+        end
+      end
+    end
+  end
+  print("No such file or command: "..args[1])
+end
+
+print(shellcfg["startupMessage"]:format(_OSVERSION, shellcfg.splashMessages[math.random(1, #shellcfg.splashMessages)]))
+while true do
+  coroutine.yield()
+  -- print(shell.workingDirectory .. " >")
+  --print(shellcfg["prompt"]:format(shell.workingDirectory),false)
+  -- termlib.cursorPosX = #(shell.workingDirectory .. " >  ")
+  -- termlib.cursorPosY = termlib.cursorPosY - 1
+  if shell.workingDirectory:sub(-1, -1) ~= "/" then
+    shell.workingDirectory = shell.workingDirectory .. "/"
+  end
+  local shellCommand = terminal.read("shell", shellcfg.prompt:format(shell.workingDirectory))
+  shell.run(shellCommand)
+  gpu.freeAllBuffers()
+end