feat(pack): add eslint

Author: azdanov

lua/astrocommunity/pack/eslint/README.md

@@ -0,0 +1,30 @@
+# ESLint
+
+[ESLint](https://eslint.org/) ESLint is a tool for identifying and reporting on
+patterns found in ECMAScript/JavaScript code, with the goal of making code more
+consistent and avoiding bugs.
+
+ESLint is completely pluggable. Every single rule is a plugin and you can add
+more at runtime. You can also add community plugins, configurations, and
+parsers to extend the functionality of ESLint.
+
+## Prerequisites
+
+To use ESLint, you must have [Node.js](https://nodejs.org/en/) (^18.18.0, ^20.9.0, or >=21.1.0) installed
+and built with SSL support. (If you are using an official Node.js distribution, SSL is always built in.)
+
+## How do I disable Eslint format on save?
+
+To opt out of the Eslint format on save behaviour, you can disable the autocmd setup with the pack with this:
+
+```lua
+return {
+  "AstroNvim/astrolsp",
+  optional = true,
+  opts = {
+    autocmds = {
+      eslint_fix_on_save = false,
+    },
+  },
+}
+```

lua/astrocommunity/pack/eslint/init.lua

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+return {
+  {
+    "AstroNvim/astrolsp",
+    optional = true,
+    ---@type AstroLSPOpts
+    opts = {
+      autocmds = {
+        eslint_fix_on_save = {
+          cond = function(client) return client.name == "eslint" and vim.fn.exists ":EslintFixAll" > 0 end,
+          {
+            event = "BufWritePost",
+            desc = "Fix all eslint errors",
+            callback = function(args)
+              if vim.F.if_nil(vim.b[args.buf].autoformat, vim.g.autoformat, true) then vim.cmd.EslintFixAll() end
+            end,
+          },
+        },
+      },
+    },
+  },
+  {
+    "williamboman/mason-lspconfig.nvim",
+    optional = true,
+    opts = function(_, opts)
+      opts.ensure_installed = require("astrocore").list_insert_unique(opts.ensure_installed or {}, { "eslint" })
+    end,
+  },
+  {
+    "WhoIsSethDaniel/mason-tool-installer.nvim",
+    optional = true,
+    opts = function(_, opts)
+      opts.ensure_installed = require("astrocore").list_insert_unique(opts.ensure_installed or {}, { "eslint-lsp" })
+    end,
+  },
+  {
+    "echasnovski/mini.icons",
+    optional = true,
+    opts = function(_, opts)
+      if not opts.file then opts.file = {} end
+      opts.file[".eslintrc.js"] = { glyph = "󰱺", hl = "MiniIconsYellow" }
+      opts.file["eslint.config.js"] = { glyph = "󰱺", hl = "MiniIconsYellow" }
+    end,
+  },
+}