add initial golang stuff

bashrc.d/go.bashrc

@@ -0,0 +1,2 @@
+export GOPATH=${HOME}/go
+export PATH=${PATH}:${GOPATH}/bin

nvim/after/ftplugin/go.lua

@@ -0,0 +1,17 @@
+local function map(mode, lhs, rhs, desc)
+  local opts = { silent = true, noremap = true, desc = desc or '' }
+  vim.keymap.set(mode, lhs, rhs, opts)
+end
+
+map('n', '<leader>ga', '<Cmd>GoCodeAction<CR>', 'Go: Code [A]ction')
+map('n', '<leader>gA', '<Cmd>GoCodeLenAct<CR>', 'Go: Code Lens [A]ction')
+map('n', '<leader>gb', '<Cmd>GoBuild<CR>', 'Go: [B]uild')
+map('n', '<leader>gr', '<Cmd>GoRun<CR>', 'Go: [R]un')
+map('n', '<leader>gd', '<Cmd>GoDebug<CR>', 'Go: [D]ebug')
+map('n', '<leader>gt', '<Cmd>GoTest<CR>', 'Go: [T]est')
+map('n', '<leader>gf', '<Cmd>GoFmt<CR>', 'Go: [F]ormat')
+map('n', '<leader>gi', '<Cmd>GoImports<CR>', 'Go: [I]mports')
+map('n', '<leader>gg', '<Cmd>GoGet<CR>', 'Go: [G]et')
+
+map('n', '<leader>gN', '<Cmd>GoInstallBinaries<CR>', 'Go: I[N]stall Dependent Tools')
+map('n', '<leader>gU', '<Cmd>GoUpdateBinaries<CR>', 'Go: [U]pdate Dependent Tools')

nvim/after/ftplugin/gomod.lua

@@ -0,0 +1 @@
+vim.cmd.runtime { 'after/ftplugin/go.lua', bang = true }

nvim/install-deps.sh

@@ -5,7 +5,8 @@ sudo emerge -av --noreplace \
 	x11-misc/xclip \
 	sys-apps/ripgrep \
 	net-libs/nodejs \
-	sys-devel/clang
+	sys-devel/clang \
+	dev-lang/go
 
 # don't want to be root for this, rustup is typically installed by non-root users and won't be
 # present for root at all.

nvim/lazy-lock.json

@@ -11,6 +11,8 @@
   "dashboard-nvim": { "branch": "master", "commit": "fabf5feec96185817c732d47d363f34034212685" },
   "fidget.nvim": { "branch": "main", "commit": "d855eed8a06531a7e8fd0684889b2943f373c469" },
   "gitsigns.nvim": { "branch": "main", "commit": "863903631e676b33e8be2acb17512fdc1b80b4fb" },
+  "go.nvim": { "branch": "master", "commit": "51676b430fc9288073769319ba0ccb2a3bcd79c9" },
+  "guihua.lua": { "branch": "master", "commit": "225db770e36aae6a1e9e3a65578095c8eb4038d3" },
   "indent-blankline.nvim": { "branch": "master", "commit": "e7a4442e055ec953311e77791546238d1eaae507" },
   "lazy.nvim": { "branch": "main", "commit": "1159bdccd8910a0fd0914b24d6c3d186689023d9" },
   "lazydev.nvim": { "branch": "main", "commit": "491452cf1ca6f029e90ad0d0368848fac717c6d2" },
@@ -29,6 +31,7 @@
   "nvim-colorizer.lua": { "branch": "master", "commit": "a065833f35a3a7cc3ef137ac88b5381da2ba302e" },
   "nvim-dap": { "branch": "master", "commit": "7ff6936010b7222fea2caea0f67ed77f1b7c60dd" },
   "nvim-dap-ui": { "branch": "master", "commit": "ffa89839f97bad360e78428d5c740fdad9a0ff02" },
+  "nvim-dap-virtual-text": { "branch": "master", "commit": "52638640ae309cacdaff785fdbb854437bd1ee5c" },
   "nvim-lspconfig": { "branch": "master", "commit": "04680101ff79e99b4e33a4386ec27cbd0d360c75" },
   "nvim-nio": { "branch": "master", "commit": "a428f309119086dc78dd4b19306d2d67be884eee" },
   "nvim-notify": { "branch": "master", "commit": "fbef5d32be8466dd76544a257d3f3dce20082a07" },

nvim/lua/helper/init.lua

@@ -20,6 +20,12 @@ function M.in_git_project()
   return vim.fn.finddir('.git', '.;') ~= ''
 end
 
+-- TODO: is there some better way to do this?
+-- TODO: also add `in_golang_project()` function to detect based on presence of go.mod file?
+function M.is_golang_filetype()
+  return M.contains({ 'go', 'gomod', 'gosum', 'gotmpl' }, vim.bo.filetype)
+end
+
 function M.contains(tbl, v)
   for i, value in ipairs(tbl) do
     if value == v then

nvim/lua/plugins/go.lua

@@ -0,0 +1,26 @@
+return {
+  {
+    'ray-x/go.nvim',
+    dependencies = {
+      'ray-x/guihua.lua',
+      'neovim/nvim-lspconfig',
+      'nvim-treesitter/nvim-treesitter',
+    },
+    config = function()
+      require('go').setup {
+        dap_debug_keymap = false,
+      }
+
+      vim.api.nvim_create_autocmd('BufWritePre', {
+        group = vim.api.nvim_create_augroup('gered-gofmt-goimports', {}),
+        pattern = '*.go',
+        callback = function()
+          require('go.format').goimports()
+        end,
+      })
+    end,
+    event = { 'CmdlineEnter' },
+    ft = { 'go', 'gomod' },
+    build = ':lua require("go.install").update_all_sync()',
+  },
+}

nvim/lua/plugins/mason.lua

@@ -21,6 +21,7 @@ return {
           'css-lsp',
           'docker-compose-language-service',
           'dockerfile-language-server',
+          'gopls',
           'html-lsp',
           'jdtls',
           'json-lsp',

nvim/lua/plugins/menu.lua

@@ -73,6 +73,15 @@ function get_default_menu()
     })
   end
 
+  if helper.is_golang_filetype() then
+    table.insert(menu, 1, {
+      name = '󰟓  Golang Actions',
+      hl = 'ExBlue',
+      items = get_golang_menu(),
+      rtxt = '<leader>g',
+    })
+  end
+
   if helper.in_git_project() then
     table.insert(menu, 1, {
       name = '  Git Actions',
@@ -398,6 +407,95 @@ function get_cmake_menu()
   }
 end
 
+function get_golang_menu()
+  return {
+    {
+      name = 'Code Actions',
+      cmd = function()
+        vim.cmd 'GoCodeAction'
+      end,
+      rtxt = '<leader>ga',
+    },
+    {
+      name = 'Code Lens Actions',
+      cmd = function()
+        vim.cmd 'GoCodeLenAct'
+      end,
+      rtxt = '<leader>gA',
+    },
+    { name = 'separator' },
+    {
+      name = 'Build',
+      hl = 'ExRed',
+      cmd = function()
+        vim.cmd 'GoBuild'
+      end,
+      rtxt = '<leader>gb',
+    },
+    {
+      name = '  Run',
+      hl = 'ExGreen',
+      cmd = function()
+        vim.cmd 'GoRun'
+      end,
+      rtxt = '<leader>gr',
+    },
+    {
+      name = '󰃤  Debug',
+      hl = 'ExBlue',
+      cmd = function()
+        vim.cmd 'GoDebug'
+      end,
+      rtxt = '<leader>gd',
+    },
+    {
+      name = '󰸞  Test',
+      hl = 'ExRed',
+      cmd = function()
+        vim.cmd 'GoTest'
+      end,
+      rtxt = '<leader>gt',
+    },
+    { name = 'separator' },
+    {
+      name = 'Format',
+      cmd = function()
+        vim.cmd 'GoFmt'
+      end,
+      rtxt = '<leader>gf',
+    },
+    {
+      name = 'Imports',
+      cmd = function()
+        vim.cmd 'GoImports'
+      end,
+      rtxt = '<leader>gi',
+    },
+    {
+      name = 'Get',
+      cmd = function()
+        vim.cmd 'GoGet'
+      end,
+      rtxt = '<leader>gg',
+    },
+    { name = 'separator' },
+    {
+      name = 'Install Dependent Tools',
+      cmd = function()
+        vim.cmd 'GoInstallBinaries'
+      end,
+      rtxt = '<leader>gN',
+    },
+    {
+      name = 'Update Dependent Tools',
+      cmd = function()
+        vim.cmd = 'GoUpdateBinaries'
+      end,
+      rtxt = '<leader>gU',
+    },
+  }
+end
+
 function get_git_menu()
   local gitsigns = require 'gitsigns'
   return {

nvim/lua/plugins/nvim-dap.lua

@@ -14,6 +14,9 @@ return {
       'williamboman/mason.nvim',
       'jay-babu/mason-nvim-dap.nvim',
 
+      -- mainly added for go.nvim
+      'theHamsta/nvim-dap-virtual-text',
+
       -- Add your own debuggers here
       --'leoluz/nvim-dap-go',
     },

nvim/lua/plugins/nvim-treesitter.lua

@@ -13,6 +13,10 @@ return {
         'csv',
         'diff',
         'dockerfile',
+        'go',
+        'gomod',
+        'gosum',
+        'gotmpl',
         'html',
         'ini',
         'java',

nvim/lua/plugins/which-key.lua

@@ -49,6 +49,7 @@ return {
         { '<leader>b', group = '[B]uffer' },
         { '<leader>r', group = '[R]ust' },
         { '<leader>c', group = '[C]Make' },
+        { '<leader>g', group = '[G]o', icon = { icon = '󰟓' } },
         { '<leader>h', group = 'Git [H]unk', mode = { 'n', 'v' } },
       },
     },