feat!: Rework Luasnip configuration

1. Migrate all snippets to VSC style because my snippets weren't that
complex and didn't utilize the power of Luasnip's snippet engine.
2. Due to 1. clean up and simplify plugin configuration.
3. Provide the possibility to overwrite the snippets folder path.

lua/vnext/plugins/snippets.lua

@@ -1,58 +1,30 @@
 return {
   {
     "L3MON4D3/LuaSnip",
-    event = "InsertEnter",
+    lazy = true,
     dependencies = {
       {
         "rafamadriz/friendly-snippets",
-        config = function(_, opts)
-          require("luasnip").filetype_extend("all", { "loremipsum" })
+        config = function()
+          require("luasnip.loaders.from_vscode").lazy_load() -- load friendly-snippets
+          require("luasnip").filetype_extend("all", { "loremipsum" }) -- load loremipsum snippets from friendly-snippets
         end,
       },
     },
     build = "make install_jsregexp",
-    config = function()
-      local ls = require("luasnip")
-      local vsc = require("luasnip.loaders.from_vscode")
-      local lua = require("luasnip.loaders.from_lua")
-
-      snip_env = {
-        s = require("luasnip.nodes.snippet").S,
-        sn = require("luasnip.nodes.snippet").SN,
-        t = require("luasnip.nodes.textNode").T,
-        f = require("luasnip.nodes.functionNode").F,
-        i = require("luasnip.nodes.insertNode").I,
-        c = require("luasnip.nodes.choiceNode").C,
-        d = require("luasnip.nodes.dynamicNode").D,
-        r = require("luasnip.nodes.restoreNode").R,
-        l = require("luasnip.extras").lambda,
-        rep = require("luasnip.extras").rep,
-        p = require("luasnip.extras").partial,
-        m = require("luasnip.extras").match,
-        n = require("luasnip.extras").nonempty,
-        dl = require("luasnip.extras").dynamic_lambda,
-        fmt = require("luasnip.extras.fmt").fmt,
-        fmta = require("luasnip.extras.fmt").fmta,
-        conds = require("luasnip.extras.expand_conditions"),
-        types = require("luasnip.util.types"),
-        events = require("luasnip.util.events"),
-        parse = require("luasnip.util.parser").parse_snippet,
-        ai = require("luasnip.nodes.absolute_indexer"),
-      }
-
-      ls.config.set_config({ history = true, updateevents = "TextChanged,TextChangedI" })
-
-      -- load lua snippets
-      lua.load({ paths = os.getenv("HOME") .. "/.config/nvim/snippets/" })
-      -- load friendly-snippets
-      -- this must be loaded after custom snippets or they get overwritte!
-      -- https://github.com/L3MON4D3/LuaSnip/blob/b5a72f1fbde545be101fcd10b70bcd51ea4367de/Examples/snippets.lua#L497
-      vsc.lazy_load()
-
-      -- selecting within a list of options.
+    opts = {
+      snippets_path = { vim.fn.stdpath("config") .. "/snippets" }, -- can be overwritten with a LazySpec in extra/
+      history = true,
+      updateevents = "TextChanged,TextChangedI",
+      delete_check_events = "TextChanged",
+    },
+    config = function(_, opts)
+      -- load VSC style snippets
+      require("luasnip.loaders.from_vscode").lazy_load({ paths = opts.snippets_path })
+      -- selecting within a list of snippet options.
       vim.keymap.set("i", "<c-h>", function()
-        if ls.choice_active() then
-          ls.change_choice(1)
+        if require("luasnip").choice_active() then
+          require("luasnip").change_choice(1)
         end
       end)
     end,
@@ -61,7 +33,6 @@ return {
   -- luasnip integration
   {
     "saghen/blink.cmp",
-    optional = true,
     opts = {
       snippets = {
         preset = "luasnip",

snippets/all.json

@@ -0,0 +1,42 @@
+{
+  "Gmail": {
+    "prefix": "gmail",
+    "body": "[email protected]",
+    "description": "Insert your Gmail address"
+  },
+  "Rootknecht": {
+    "prefix": "rootknecht",
+    "body": "[email protected]",
+    "description": "Insert the Rootknecht email address"
+  },
+  "MFG": {
+    "prefix": "mfg",
+    "body": ["Mit freundlichen Grüßen", "Michael Peter"],
+    "description": "Insert a friendly closing statement"
+  },
+  "Sehr Geehrte": {
+    "prefix": "sehrg",
+    "body": ["Sehr geehrte Damen und Herren,", "", ""],
+    "description": "Insert a formal greeting"
+  },
+  "Modeline": {
+    "prefix": "modeline",
+    "body": "vim: set foldmethod=marker foldmarker={{{,}}} :",
+    "description": "Insert a Vim modeline for fold settings"
+  },
+  "Current Date": {
+    "prefix": "date",
+    "body": "${CURRENT_YEAR}-${CURRENT_MONTH}-${CURRENT_DATE}",
+    "description": "Insert the current date in YYYY-MM-DD format"
+  },
+  "Current Time": {
+    "prefix": "time",
+    "body": "${CURRENT_HOUR}:${CURRENT_MINUTE}",
+    "description": "Insert the current time in HH:MM format"
+  },
+  "ISO Date-Time": {
+    "prefix": "htime",
+    "body": "${CURRENT_YEAR}-${CURRENT_MONTH}-${CURRENT_DATE}T${CURRENT_HOUR}:${CURRENT_MINUTE}:${CURRENT_SECOND}+10:00",
+    "description": "Insert the current date and time in ISO 8601 format"
+  }
+}

snippets/go.json

@@ -0,0 +1,12 @@
+{
+  "Println": {
+    "prefix": "fl",
+    "body": ["fmt.Println(${1:text})", "${0}"],
+    "description": "Simple Println Snippet"
+  },
+  "Sprintf": {
+    "prefix": "fs",
+    "body": ["fmt.Sprintf(\"${1:verbs}\", ${2:args})", "${0}"],
+    "description": "Simple Sprintf Snippet"
+  }
+}

snippets/json.json

@@ -0,0 +1,23 @@
+{
+  "Tasks Configuration": {
+    "prefix": "tasks",
+    "body": [
+      "{",
+      "  \"version\": \"2.0.0\",",
+      "  \"tasks\": [",
+      "    {",
+      "      \"label\": \"Test Overseer\",",
+      "      \"type\": \"shell\",",
+      "      \"command\": \"ping -c 4 google.com\",",
+      "      \"group\": \"test\",",
+      "      \"presentation\": {",
+      "        \"reveal\": \"always\",",
+      "        \"panel\": \"new\"",
+      "      }",
+      "    }",
+      "  ]",
+      "}"
+    ],
+    "description": "Insert a tasks configuration template"
+  }
+}

snippets/lua.json

@@ -0,0 +1,7 @@
+{
+  "Pretty Print": {
+    "prefix": "pp",
+    "body": ["vim.print(${1:args})"],
+    "description": "Pretty Print"
+  }
+}

snippets/markdown.json

@@ -0,0 +1,76 @@
+{
+  "GitLab Warning Emoji": {
+    "prefix": "gitlab_warn",
+    "body": [":warning: ${1:warning}${0}"],
+    "description": "Warning emoji for GitLab markdown"
+  },
+  "Hugo Image Shortcut": {
+    "prefix": "hugoimg",
+    "body": ["{{< img name=\"${1:name}\" lazy=\"${2:true}\" >}}"],
+    "description": "Insert a Hugo image shortcut"
+  },
+  "Hugo TOC": {
+    "prefix": "hugotoc",
+    "body": ["{{< toc >}}"],
+    "description": "Hugo Table of Contents"
+  },
+  "Hugo Separator": {
+    "prefix": "hugosep",
+    "body": ["<!-- more -->"],
+    "description": "Insert a separator in Hugo"
+  },
+  "Hugo Resource Entry": {
+    "prefix": "hugores",
+    "body": ["- name: ${1:name}", "  src: ${2:${1}}", "  title: ${3:title}"],
+    "description": "Insert a Hugo resource entry"
+  },
+  "Hugo Alert": {
+    "prefix": "hugoalert",
+    "body": [
+      "{{<< alert ${1:opts} >>}}",
+      "${2:text}",
+      "{{<< /alert >>}}",
+      "${0}"
+    ],
+    "description": "Alert shortcode of Blowfish theme"
+  },
+  "LTeX Language": {
+    "prefix": "ltexLang",
+    "body": ["<!-- LTeX: language=${1:lang} -->${0}"],
+    "description": "Overwrite language for LTeX LSP"
+  },
+  "Markdown Link": {
+    "prefix": "link",
+    "body": ["[${1:text}](${2:url})${0}"],
+    "description": "Insert a default Markdown link"
+  },
+  "Changelog Template": {
+    "prefix": "chlog",
+    "body": [
+      "# Changelog",
+      "",
+      "All notable changes to this project will be documented in this file.",
+      "",
+      "The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),",
+      "and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).",
+      "",
+      "## [Unreleased]",
+      "",
+      "## [1.1.1] - 2023-03-05",
+      "",
+      "### Added",
+      "",
+      "### Fixed",
+      "",
+      "### Changed",
+      "",
+      "### Removed",
+      "",
+      "[unreleased]: https://github.com/olivierlacan/keep-a-changelog/compare/v1.1.1...HEAD",
+      "[0.0.3]: https://github.com/olivierlacan/keep-a-changelog/compare/v0.0.2...v0.0.3",
+      "[0.0.2]: https://github.com/olivierlacan/keep-a-changelog/compare/v0.0.1...v0.0.2",
+      "[0.0.1]: https://github.com/olivierlacan/keep-a-changelog/releases/tag/v0.0.1"
+    ],
+    "description": "Keep a changelog template"
+  }
+}