phase 1 mvp

lua/nvim-claude/utils.lua

@@ -0,0 +1,116 @@
+-- Utility functions for nvim-claude
+local M = {}
+
+-- Check if we're in a git repository
+function M.is_git_repo()
+  local handle = io.popen('git rev-parse --git-dir 2>/dev/null')
+  if handle then
+    local result = handle:read('*a')
+    handle:close()
+    return result ~= ''
+  end
+  return false
+end
+
+-- Get project root (git root or current working directory)
+function M.get_project_root()
+  if M.is_git_repo() then
+    local handle = io.popen('git rev-parse --show-toplevel 2>/dev/null')
+    if handle then
+      local root = handle:read('*a'):gsub('\n', '')
+      handle:close()
+      return root
+    end
+  end
+  return vim.fn.getcwd()
+end
+
+-- Create directory if it doesn't exist
+function M.ensure_dir(path)
+  local stat = vim.loop.fs_stat(path)
+  if not stat then
+    vim.fn.mkdir(path, 'p')
+    return true
+  end
+  return stat.type == 'directory'
+end
+
+-- Read file contents
+function M.read_file(path)
+  local file = io.open(path, 'r')
+  if not file then return nil end
+  local content = file:read('*a')
+  file:close()
+  return content
+end
+
+-- Write file contents
+function M.write_file(path, content)
+  local file = io.open(path, 'w')
+  if not file then return false end
+  file:write(content)
+  file:close()
+  return true
+end
+
+-- Check if file exists
+function M.file_exists(path)
+  local stat = vim.loop.fs_stat(path)
+  return stat and stat.type == 'file'
+end
+
+-- Generate timestamp string
+function M.timestamp()
+  return os.date('%Y-%m-%d-%H%M%S')
+end
+
+-- Generate agent directory name
+function M.agent_dirname(task)
+  -- Sanitize task name for filesystem
+  local safe_task = task:gsub('[^%w%-_]', '-'):gsub('%-+', '-'):sub(1, 50)
+  return string.format('agent-%s-%s', M.timestamp(), safe_task)
+end
+
+-- Execute shell command and return output
+function M.exec(cmd)
+  local handle = io.popen(cmd .. ' 2>&1')
+  if not handle then return nil, 'Failed to execute command' end
+  local result = handle:read('*a')
+  local ok = handle:close()
+  if ok then
+    return result, nil
+  else
+    return result, result
+  end
+end
+
+-- Check if tmux is available
+function M.has_tmux()
+  local result = M.exec('which tmux')
+  return result and result:match('/tmux')
+end
+
+-- Get current tmux session
+function M.get_tmux_session()
+  local result = M.exec('tmux display-message -p "#{session_name}" 2>/dev/null')
+  if result and result ~= '' then
+    return result:gsub('\n', '')
+  end
+  return nil
+end
+
+-- Get tmux version as number (e.g., 3.4) or 0 if unknown
+function M.tmux_version()
+  local result = M.exec('tmux -V 2>/dev/null')
+  if not result then return 0 end
+  -- Expected output: "tmux 3.4"
+  local ver = result:match('tmux%s+([0-9]+%.[0-9]+)')
+  return tonumber(ver) or 0
+end
+
+-- Determine if tmux supports the new -l <percent>% syntax (>= 3.4)
+function M.tmux_supports_length_percent()
+  return M.tmux_version() >= 3.4
+end
+
+return M