1 files changed, 124 insertions, 0 deletions
diff --git a/.vim/lua/internal/snips.lua b/.vim/lua/internal/snips.lua
new file mode 100644
index 0000000..318c9f7
--- /dev/null
+++ b/.vim/lua/internal/snips.lua
@@ -0,0 +1,124 @@
+
+local ls = require('luasnip')
+local types = require('luasnip.util.types')
+
+vim.api.nvim_set_hl(0, 'LuasnipIndicator', {
+  fg = vim.g.terminal_color_15,
+  bg = vim.g.terminal_color_1,
+  italic = true,
+  nocombine = true,
+})
+
+-- autowrap: wraps the function in top and bot if there is any content
+local autowrap = function(top, bot, inner)
+  local autoinsert = function(args, _, _, wrap_with)
+    local nodes = {}
+    if vim.trim(table.concat(args[1] or {})) ~= "" then
+      table.insert(nodes, wrap_with)
+    end
+    return ls.sn(nil, nodes)
+  end
+
+  local argnodes = {}
+  local maxpos = -1
+  for _, e in ipairs(inner) do
+    if e.pos ~= nil then
+      table.insert(argnodes, e.pos)
+      if e.pos > maxpos then
+        maxpos = e.pos
+      end
+    end
+  end
+
+  local nodes = {}
+  table.insert(nodes, ls.d(maxpos+1, autoinsert, argnodes, {user_args = {top}}))
+  for _, e in ipairs(inner) do table.insert(nodes, e) end
+  table.insert(nodes, ls.d(maxpos+2, autoinsert, argnodes, {user_args = {bot}}))
+  return nodes
+end
+
+-- comment: wraps the content in &commentstring (or a blockcomment)
+local comment = function(wrapped, blockcomment)
+  -- commentstring helper
+  local get_cstring = function()
+    local cs = require('Comment.ft').calculate {
+      ctype = blockcomment and 2 or 1,
+      range = require('Comment.utils').get_region()
+    }
+    local tbl = vim.split(cs or '', '%s', {plain = true, trimempty = true})
+    return (#tbl == 0) and {'', ''}
+      or ((#tbl == 1) and {tbl[1] .. ' ', ''}
+        or {tbl[1], tbl[2]})
+  end
+
+  if type(wrapped) ~= "table" then
+    wrapped = {wrapped}
+  end
+
+  local nodes = {}
+  table.insert(nodes, ls.f(function() return get_cstring()[1] end))
+  for _, n in ipairs(wrapped) do table.insert(nodes, n) end
+  table.insert(nodes, ls.f(function() return get_cstring()[2] end))
+  return nodes
+end
+
+-- exec: inserts the output of command
+local exec = function(command)
+  return ls.f(function(_, _, ...)
+    local results, code = require('plenary.job'):new({
+      command = vim.env.SHELL,
+      args = {'-c', ...},
+      enable_recording = true,
+    }):sync()
+    if not code == 0 or #results == 0 then
+      error(string.format('exec "%s" failed', ...))
+    end
+    return results
+  end, {}, {user_args = {command}})
+end
+
+ls.setup {
+  ext_opts = {
+    [types.snippet] = {
+      active = { virt_text = {{ '<-- luasnip', 'LuasnipIndicator' }}, virt_text_pos = 'right_align' }
+    },
+    [types.insertNode] = {
+      unvisited = { hl_group = 'LuasnipIndicator' }
+    },
+    [types.choiceNode] = {
+      active = {
+        virt_text = {{'<-- choice node', 'LuasnipIndicator'}},
+      }
+    }
+  },
+
+  snip_env = vim.tbl_extend('keep', ls.session.config.snip_env, {
+    autowrap = autowrap,
+    exec = exec,
+    comment = comment,
+
+    user_email = {
+      exec([[git config --get user.name]]),
+      ls.t(' <'),
+      ls.c(1, {
+        exec([[git config --get user.email]]),
+        ls.t([[robert.gunzler@postman.com]]),
+        ls.t([[robert@gnzler.io]]),
+      }),
+      ls.t('>'),
+    },
+  })
+}
+
+-- snipmate snippets
+require('luasnip.loaders.from_snipmate').lazy_load {paths = './after/snippets'}
+-- lua snippets
+require("luasnip.loaders.from_lua").lazy_load {paths = './snippets'}
+
+vim.api.nvim_create_user_command('LuaSnipUnlinkAll',
+  function()
+    while #package.loaded.luasnip.session.current_nodes > 0 do
+      package.loaded.luasnip.unlink_current()
+    end
+  end,
+  { desc = 'unlink all active snippets' })