refactor(modules/legacy/conf/nvim): Move to `by-name`

1 files changed, 211 insertions, 0 deletions

diff --git a/modules/by-name/nv/nvim/plgs/luasnip/lua/snippets/all.lua b/modules/by-name/nv/nvim/plgs/luasnip/lua/snippets/all.lua
new file mode 100644
index 00000000..2b923f20
--- /dev/null
+++ b/modules/by-name/nv/nvim/plgs/luasnip/lua/snippets/all.lua
@@ -0,0 +1,211 @@
+local ls = require("luasnip")
+-- auto_pairs  {{{
+local get_visual = function(args, parent)
+  if #parent.snippet.env.SELECT_RAW > 0 then
+    return sn(nil, i(1, parent.snippet.env.SELECT_RAW))
+  else
+    return sn(nil, i(1, ""))
+  end
+end
+local function char_count_same(c1, c2)
+  local line = vim.api.nvim_get_current_line()
+  -- '%'-escape chars to force explicit match (gsub accepts patterns).
+  -- second return value is number of substitutions.
+  local _, ct1 = string.gsub(line, "%" .. c1, "")
+  local _, ct2 = string.gsub(line, "%" .. c2, "")
+  return ct1 == ct2
+end
+
+local function even_count(c, ...)
+  local line = vim.api.nvim_get_current_line()
+  local _, ct = string.gsub(line, c, "")
+  return ct % 2 == 0
+end
+
+-- This makes creation of pair-type snippets easier.
+local function pair(pair_begin, pair_end, file_types, condition_function)
+  -- FIXME(@Soispha): This only works if file_types == nil, otherwise the snippet does not expand.
+  -- It would be nice, if it would support both an empty array (`{}`) and nil <2023-08-27>
+  -- file_types = file_types or {};
+
+  return s(
+    { trig = pair_begin, wordTrig = false, snippetType = "autosnippet" },
+    { t({ pair_begin }), d(1, get_visual), t({ pair_end }) },
+    {
+      condition = function()
+        local filetype_check = true
+        if file_types ~= nil then filetype_check = file_types[vim.bo.filetype] or false end
+        return (not condition_function(pair_begin, pair_end)) and filetype_check
+      end,
+    }
+  )
+end
+
+local auto_pairs = {
+  pair("(", ")", nil, char_count_same),
+  pair("{", "}", nil, char_count_same),
+  pair("[", "]", nil, char_count_same),
+  pair("<", ">", { ["rust"] = true, ["tex"] = true }, char_count_same),
+  pair("'", "'", nil, even_count),
+  pair("\"", "\"", nil, even_count),
+  pair("`", "`", nil, even_count),
+}
+
+ls.add_snippets("all", auto_pairs, { type = "snippets", key = "auto_pairs" })
+-- }}}
+
+-- todo_comments {{{
+local calculate_comment_string = require("Comment.ft").calculate
+local utils = require("Comment.utils")
+
+local read_git_config = function(config_value)
+  local command = string.format("git config \"%s\"", config_value)
+  local handle = io.popen(command)
+  if handle == nil then return error(string.format("Failed to call `%s`.", command)) end
+  local result = handle:read("*a")
+  handle:close()
+  -- stripped = string.gsub(str, '%s+', '')
+  return string.gsub(result, "\n", "")
+end
+
+local name_to_handle = function(name)
+  -- from: https://stackoverflow.com/a/7615129
+  local split = function(inputstr, sep)
+    local t = {}
+    for str in string.gmatch(inputstr, "([^" .. sep .. "]+)") do
+      table.insert(t, str)
+    end
+    return t
+  end
+
+  local parts = split(name, "%s")
+
+  local output_name = ""
+  if #parts > 2 then
+    for _, val in ipairs(parts) do
+      output_name = string.format("%s%s", output_name, val:sub(1, 1))
+    end
+  elseif #parts == 2 then
+    output_name = string.format("%s%s", parts[1]:sub(1, 1), parts[2])
+  elseif #parts == 1 then
+    output_name = parts[1]
+  else
+    -- parts is 0
+    output_name = "<NoName>"
+  end
+  return string.format("@%s", output_name:lower())
+end
+
+_G.luasnip = {}
+_G.luasnip.vars = {
+  username = function() return name_to_handle(read_git_config("user.name")) end,
+  email = function() return read_git_config("user.email") end,
+}
+
+--- Get the comment string {beg,end} table
+---@param ctype integer 1 for `line`-comment and 2 for `block`-comment
+---@return table comment_strings {begcstring, endcstring}
+local get_cstring = function(ctype)
+  -- use the `Comments.nvim` API to fetch the comment string for the region (eq. '--%s' or '--[[%s]]' for `lua`)
+  local cstring = calculate_comment_string({ ctype = ctype, range = utils.get_region() }) or vim.bo.commentstring
+  -- as we want only the strings themselves and not strings ready for using `format` we want to split the left and right side
+  local left, right = utils.unwrap_cstr(cstring)
+  -- create a `{left, right}` table for it
+  return { left, right }
+end
+
+--- Options for marks to be used in a TODO comment
+---@return table,table: The first table contains a node for the date, the second for the signature
+local marks = {
+  signature = function() return t("(" .. _G.luasnip.vars:username() .. ")"), t("") end,
+  date_signature = function() return t("<" .. os.date("%Y-%m-%d") .. ">"), t("(" .. _G.luasnip.vars:username() .. ")") end,
+  date = function() return t("<" .. os.date("%Y-%m-%d") .. ">"), t("") end,
+  empty = function() return t(""), t("") end,
+}
+
+---@param alias string
+---@param opts table
+---@param mark_function function: This function should return two nodes
+---@return table: Returns the comment node
+local todo_snippet_nodes = function(alias, opts, mark_function)
+  local date_node, signature_node = mark_function()
+  -- format them into the actual snippet
+  local comment_node = fmta("<> <><>: <> <> <>", {
+    f(function()
+      return get_cstring(opts.ctype)[1] -- get <comment-string[1]>
+    end),
+    t(alias), -- [name-of-comment]
+    signature_node,
+    i(0), -- {comment-text}
+    date_node,
+    f(function()
+      return get_cstring(opts.ctype)[2] -- get <comment-string[2]>
+    end),
+  })
+  return comment_node
+end
+
+--- Generate a TODO comment snippet with an automatic description and docstring
+---@param context table merged with the generated context table `trig` must be specified
+---@param alias string of aliases for the todo comment (ex.: {FIX, ISSUE, FIXIT, BUG})
+---@param opts table merged with the snippet opts table
+---@param mark_function function: The function used to get the marks
+local todo_snippet = function(context, alias, opts, mark_function)
+  opts = opts or {}
+  context = context or {}
+  if not context.trig then
+    return error("context doesn't include a `trig` key which is mandatory", 2) -- all we need from the context is the trigger
+  end
+  opts.ctype = opts.ctype or 1 -- comment type can be passed in the `opts` table, but if it is not, we have to ensure, it is defined
+  local alias_string = alias -- `choice_node` documentation
+  context.name = context.name or (alias_string .. " comment") -- generate the `name` of the snippet if not defined
+  context.dscr = context.dscr or (alias_string .. " comment with a signature-mark") -- generate the `dscr` if not defined
+  context.docstring = context.docstring or (" {1:" .. alias_string .. "}: {3} <{2:mark}>{0} ") -- generate the `docstring` if not defined
+  local comment_node = todo_snippet_nodes(alias, opts, mark_function)
+  return s(context, comment_node, opts) -- the final todo-snippet constructed from our parameters
+end
+
+---@param context table: The luasnip context
+---@param opts table: The luasnip opts table, needs to have a ctype set
+---@param aliases string: All aliases for a name
+---@param marks table: Possible marks to account in snipped generation
+---@return table: All possible snippets build from the marks
+local process_marks = function(context, aliases, opts, marks)
+  local output = {}
+  for mark_name, mark_function in pairs(marks) do
+    local contex_trig_local = context.trig
+    context.trig = context.trig .. "-" .. mark_name
+    output[#output + 1] = todo_snippet(context, aliases, opts, mark_function)
+    context.trig = contex_trig_local
+  end
+  return output
+end
+
+local todo_snippet_specs = {
+  { { trig = "todo" }, { "TODO" }, { ctype = 1 } },
+  { { trig = "fix" }, { "FIXME", "ISSUE" }, { ctype = 1 } },
+  { { trig = "hack" }, { "HACK" }, { ctype = 1 } },
+  { { trig = "warn" }, { "WARNING" }, { ctype = 1 } },
+  { { trig = "perf" }, { "PERFORMANCE", "OPTIMIZE" }, { ctype = 1 } },
+  { { trig = "note" }, { "NOTE", "INFO" }, { ctype = 1 } },
+
+  -- NOTE: Block commented todo-comments
+  { { trig = "todob" }, { "TODO" }, { ctype = 2 } },
+  { { trig = "fixb" }, { "FIXME", "ISSUE" }, { ctype = 2 } },
+  { { trig = "hackb" }, { "HACK" }, { ctype = 2 } },
+  { { trig = "warnb" }, { "WARNING" }, { ctype = 2 } },
+  { { trig = "perfb" }, { "PERF", "PERFORMANCE", "OPTIM", "OPTIMIZE" }, { ctype = 2 } },
+  { { trig = "noteb" }, { "NOTE", "INFO" }, { ctype = 2 } },
+}
+
+local todo_comment_snippets = {}
+for _, v in ipairs(todo_snippet_specs) do
+  local snippets = process_marks(v[1], v[2][1], v[3], marks)
+  for _, value in pairs(snippets) do
+    table.insert(todo_comment_snippets, value)
+  end
+end
+
+ls.add_snippets("all", todo_comment_snippets, { type = "snippets", key = "todo_comments" })
+
+-- }}}