[Feature] Add lunarvim latest release tag to dashboard (#1436)

* feat: add lunarvim latest release tag to dashboard

* Add a function to center-align text

Rename align to align_left
Rename shift_left to shift_right

* refactor(dashboard): remove unnecessary comment

* refactor(dashboard): use `home_dir` variable for `lv_path`

* refactor(dashboard): use $LUNARVIM_RUNTIME_DIR for lv_path

* feat(bootstrap): add fn that returns lvim version

* refactor(dashboard): use version, lunarvim dir with bootstrap fns

* build: add global get_version() from bootstrap

Co-authored-by: Luc Sinet <luc.sinet@gmail.com>

.luacheckrc

@@ -22,6 +22,7 @@ stds.nvim = {
     "get_runtime_dir",
     "get_config_dir",
     "get_cache_dir",
+    "get_version",
     -- vim = { fields = { "cmd", "api", "fn", "o" } },
   },
 }

lua/bootstrap.lua

@@ -32,6 +32,15 @@ function _G.get_cache_dir()
   return lvim_cache_dir
 end
 
+function _G.get_version(type)
+  local lvim_full_ver = vim.fn.system("git -C " .. get_runtime_dir() .. "/lvim describe --tag")
+  if type == "short" then
+    return vim.fn.split(lvim_full_ver, "-")[1]
+  else
+    return string.sub(lvim_full_ver, 1, #lvim_full_ver - 1)
+  end
+end
+
 function M:init()
   self.runtime_dir = get_runtime_dir()
   self.config_dir = get_config_dir()

lua/core/dashboard.lua

@@ -69,7 +69,18 @@ M.setup = function()
 
   vim.g.dashboard_session_directory = lvim.builtin.dashboard.session_directory
 
-  vim.g.dashboard_custom_footer = lvim.builtin.dashboard.footer
+  local lvim_site = "lunarvim.org"
+  local lvim_version = get_version "short"
+  local num_plugins_loaded = #vim.fn.globpath(get_runtime_dir() .. "/site/pack/packer/start", "*", 0, 1)
+
+  local text = require "interface.text"
+  vim.g.dashboard_custom_footer = text.align_center({ width = 0 }, {
+    "LunarVim loaded " .. num_plugins_loaded .. " plugins ",
+    "",
+    "v" .. lvim_version,
+    "",
+    lvim_site,
+  }, 0.49) -- Use 0.49 as  counts for 2 characters
 
   require("core.autocmds").define_augroups {
     _dashboard = {

lua/core/info.lua

@@ -97,7 +97,7 @@ function M.toggle_popup(ft)
     local caps_text = "* Capabilities list:    "
     local caps_text_len = caps_text:len()
     local enabled_caps = text.format_table(client_enabled_caps, 3, " | ")
-    enabled_caps = text.shift_left(enabled_caps, caps_text_len)
+    enabled_caps = text.shift_right(enabled_caps, caps_text_len)
     enabled_caps[1] = fmt("%s%s", caps_text, enabled_caps[1]:sub(caps_text_len + 1))
     vim.list_extend(lsp_info, enabled_caps)
   end
@@ -155,7 +155,7 @@ function M.toggle_popup(ft)
       vim.list_extend(content, section)
     end
 
-    return text.align(popup, content, 0.5)
+    return text.align_left(popup, content, 0.5)
   end
 
   local function set_syntax_hl()

lua/interface/text.lua

@@ -13,20 +13,36 @@ local function max_len_line(lines)
   return max_len
 end
 
---- Center align lines relatively to the parent container
+--- Left align lines relatively to the parent container
 -- @param container The container where lines will be displayed
 -- @param lines The text to align
 -- @param alignment The alignment value, range: [0-1]
-function M.align(container, lines, alignment)
+function M.align_left(container, lines, alignment)
   local max_len = max_len_line(lines)
   local indent_amount = math.ceil(math.max(container.width - max_len, 0) * alignment)
-  return M.shift_left(lines, indent_amount)
+  return M.shift_right(lines, indent_amount)
+end
+
+--- Center align lines relatively to the parent container
+-- @param container The container where lines will be displayed
+-- @param lines The text to align
+-- @param alignment The alignment value, range: [0-1]
+function M.align_center(container, lines, alignment)
+  local output = {}
+  local max_len = max_len_line(lines)
+
+  for _, line in ipairs(lines) do
+    local padding = string.rep(" ", (math.max(container.width, max_len) - line:len()) * alignment)
+    table.insert(output, padding .. line)
+  end
+
+  return output
 end
 
 --- Shift lines by a given amount
 -- @params lines The lines the shift
 -- @param amount The amount of spaces to add
-function M.shift_left(lines, amount)
+function M.shift_right(lines, amount)
   local output = {}
   local padding = string.rep(" ", amount)