Initial commit

Working runner with stdout to view

init.lua

@@ -0,0 +1,157 @@
+-- mod-version:3 -- lite-xl 2.1.8
+local core     = require "core"
+local style    = require "core.style"
+local command  = require "core.command"
+local keymap   = require "core.keymap"
+local View     = require "core.view"
+local process  = require "process"     -- Child Processes API
+local config   = require "core.config"
+
+local function dump(o)
+   if type(o) == 'table' then
+      local s = '{ '
+      for k,v in pairs(o) do
+         if type(k) ~= 'number' then k = '"'..k..'"' end
+         s = s .. '['..k..'] = ' .. dump(v) .. ','
+      end
+      return s .. '} '
+   else
+      return tostring(o)
+   end
+end
+
+local active_views = {}
+
+-- ---------- JPDebugView: a simple scrollable log view ----------
+local JPDebugView = View:extend()
+
+function JPDebugView:new(title)
+  JPDebugView.super.new(self)
+  self.scrollable = true
+  self.caption = title or "JP Debug"
+  self.lines = { "[jpdebug] ready.\n" }
+  self.max_lines = 5000 -- keep memory bounded
+  self.font = style.code_font
+  self.line_h = self.font:get_height()
+end
+
+function JPDebugView:get_name()
+  return self.caption
+end
+
+function JPDebugView:get_scrollable_size()
+  return math.max(#self.lines * self.line_h + style.padding.y * 2, self.size.y)
+end
+
+function JPDebugView:push(kind, s)
+  if not s or s == "" then return end
+  -- split on newlines; prefix stderr
+  for line in (s .. "\n"):gmatch("(.-)\n") do
+    if kind == "stderr" then
+      line = "[stderr] " .. line
+    else
+      line = "[stdout] " .. line
+    end
+    self.lines[#self.lines + 1] = line
+    if #self.lines > self.max_lines then
+      local drop = #self.lines - self.max_lines
+      for _ = 1, drop do table.remove(self.lines, 1) end
+    end
+  end
+  -- autoscroll to bottom
+  self.scroll.to.y = self:get_scrollable_size()
+  core.redraw = true
+end
+
+function JPDebugView:clear()
+  self.lines = {}
+  core.redraw = true
+end
+
+function JPDebugView:draw()
+  self:draw_background(style.background)
+  local ox, oy = self:get_content_offset()
+  local x = ox + style.padding.x
+  local y = oy + style.padding.y
+  renderer.draw_rect(self.position.x, self.position.y, self.size.x, self.size.y, style.background)
+  for i = 1, #self.lines do
+    renderer.draw_text(self.font, self.lines[i], x, y, style.text)
+    y = y + self.line_h
+  end
+  self:draw_scrollbar()
+end
+
+-- ---------- helper: pick a target from project module ----------
+local function get_targets()
+  local t = (config.plugins and config.plugins.jpdebug and config.plugins.jpdebug.targets) or {}
+  return t
+end
+
+local function get_selected_target()
+  local t = (config.plugins and config.plugins.jpdebug and config.plugins.jpdebug.target) or {}
+  return t
+end
+
+-- ---------- run target & pipe stdout/stderr into the view ----------
+local function run_target(target, name)
+  local title = ("JP Debug: %s"):format(name)
+
+  local view = nil
+  if active_views[title] then
+    -- If there is already a view use that one
+    view = active_views[title]
+  else
+    -- Otherwhise lets make one
+    view = JPDebugView(title)
+    core.root_view:get_active_node():add_view(view)
+    active_views[title] = view
+  end
+
+  local opts = {
+    cwd   = target.cwd,
+    stdout = process.REDIRECT_PIPE,
+    stderr = process.REDIRECT_PIPE
+  }
+  view:clear()
+  local proc = process.start({"lua", target.file}, opts)
+
+  -- background pump (non-blocking I/O)
+  core.add_thread(function()
+    while true do
+      coroutine.yield(0.016) -- ~60fps
+      local out = proc:read_stdout()
+      if out == nil then
+        -- stdout pipe closed: try drain stderr and break when both closed
+        local err = proc:read_stderr()
+        if err ~= nil and err ~= "" then view:push("stderr", err) end
+        break
+      end
+      if out ~= "" then view:push("stdout", out) end
+      local err = proc:read_stderr()
+      if err ~= nil and err ~= "" then view:push("stderr", err) end
+    end
+    local code = proc:wait(process.WAIT_INFINITE)
+    view:push("stdout", ("\n[exit] code=%s\n"):format(tostring(code)))
+  end)
+
+  return view
+end
+
+command.add(nil, {
+  ["jpdebug:run"] = function()
+    local targets = get_targets()
+    local target = get_selected_target()
+    if target then
+      if targets[target] then
+        core.log('[jpdebug] Starting target %s', target)
+        run_target(targets[target], target)
+      else
+        core.error("[jpdebug] Selected target not existing in targets list")
+        return
+      end
+    else
+      core.error("[jpdebug] No target selected in project module")
+      return
+    end
+  end,
+})