nvim/lua/general.lua

-- disable netrw at the very start of your init.lua (strongly advised)
vim.g.loaded = 1
vim.g.loaded_netrwPlugin = 1

-- load lsp and dependencies (help for both coc and independent lsp setup)
require("mason").setup()
require("mason-lspconfig").setup({
    ensure_installed = {
        "bashls",
        "pyright",
        "perlnavigator",
        "salt_ls",
        "dockerls",
        "kotlin_language_server",
        "intelephense",
        "phpactor",
        "eslint"
    }
})
require("null-ls").setup({
    sources = {
        require("null-ls").builtins.formatting.stylua,
        require("null-ls").builtins.diagnostics.eslint,
        require("null-ls").builtins.completion.spell,
        require("null-ls").builtins.code_actions.gitsigns,
    },
})

-- setup minimap
local codewindow = require('codewindow')
codewindow.setup({
    minimap_width = 20, -- The width of the text part of the minimap
    width_multiplier = 4, -- How many characters one dot represents
    use_lsp = true, -- Use the builtin LSP to show errors and warnings
    use_treesitter = true, -- Use nvim-treesitter to highlight the code
    show_cursor = true,
    exclude_filetypes = {}, -- Choose certain filetypes to not show minimap on
    z_index = 1, -- The z-index the floating window will be on
    })
codewindow.apply_default_keybinds()


-- setup nvim-lspconfig
-- Mappings.
-- See `:help vim.diagnostic.*` for documentation on any of the below functions
local opts = { noremap=true, silent=true }
vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)

-- Use an on_attach function to only map the following keys
-- after the language server attaches to the current buffer
local on_attach = function(client, bufnr)
  -- Enable completion triggered by <c-x><c-o>
  vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')

  -- Mappings.
  -- See `:help vim.lsp.*` for documentation on any of the below functions
  local bufopts = { noremap=true, silent=true, buffer=bufnr }
  vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
  vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
  --vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
  vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
  vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
  vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
  vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
  vim.keymap.set('n', '<space>wl', function()
    print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
  end, bufopts)
  vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, bufopts)
  vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
  vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
  vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
  vim.keymap.set('n', '<space>f', function() vim.lsp.buf.format { async = true } end, bufopts)
end

local capabilities = require('cmp_nvim_lsp').default_capabilities()

require'lspconfig'.pyright.setup{
    on_attach = on_attach,
    capabilities = capabilities,
}
require'lspconfig'.bashls.setup{
    on_attach = on_attach,
}
require'lspconfig'.salt_ls.setup{
    on_attach = on_attach,
}
require'lspconfig'.dockerls.setup{
    on_attach = on_attach,
}
require'lspconfig'.kotlin_language_server.setup{
    on_attach = on_attach,
}
require'lspconfig'.intelephense.setup{
    on_attach = on_attach,
}
require'lspconfig'.eslint.setup{
    on_attach = on_attach,
}

-- load perl lsp
require'lspconfig'.perlnavigator.setup{
    settings = {
      perlnavigator = {
          perlPath = 'perl',
          enableWarnings = true,
          perltidyProfile = '',
          perlcriticProfile = '',
          perlcriticEnabled = true,
      }
    },
    on_attach = on_attach,
    capabilities = capabilities,
}


-- Set up nvim-cmp.
local cmp = require'cmp'

cmp.setup({
    snippet = {
      -- REQUIRED - you must specify a snippet engine
      expand = function(args)
        vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
        -- require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
        -- require('snippy').expand_snippet(args.body) -- For `snippy` users.
        -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
      end,
    },
    window = {
      -- completion = cmp.config.window.bordered(),
      -- documentation = cmp.config.window.bordered(),
    },
    mapping = cmp.mapping.preset.insert({
      ['<C-b>'] = cmp.mapping.scroll_docs(-4),
      ['<C-f>'] = cmp.mapping.scroll_docs(4),
      ['<C-Space>'] = cmp.mapping.complete(),
      ['<C-e>'] = cmp.mapping.abort(),
      ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
    }),
    sources = cmp.config.sources({
      { name = 'nvim_lsp' },
      { name = 'vsnip' }, -- For vsnip users.
      -- { name = 'luasnip' }, -- For luasnip users.
      -- { name = 'ultisnips' }, -- For ultisnips users.
      -- { name = 'snippy' }, -- For snippy users.
    }, {
      { name = 'buffer' },
    })
})

-- Set configuration for specific filetype.
cmp.setup.filetype('gitcommit', {
sources = cmp.config.sources({
  { name = 'cmp_git' }, -- You can specify the `cmp_git` source if you were installed it.
}, {
  { name = 'buffer' },
})
})

-- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline({ '/', '?' }, {
    mapping = cmp.mapping.preset.cmdline(),
    sources = {
      { name = 'buffer' }
    }
})

-- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline(':', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = cmp.config.sources({
          { name = 'path' }
        }, {
          { name = 'cmdline' }
        })
})

-- Set up lspconfig.
local capabilities = require('cmp_nvim_lsp').default_capabilities()
-- Replace <YOUR_LSP_SERVER> with each lsp server you've enabled.
require('lspconfig')['<YOUR_LSP_SERVER>'].setup {
    capabilities = capabilities
}

require'lspconfig'.tsserver.setup{}

require("nvim-tree").setup({
    create_in_closed_folder = true,
    hijack_cursor = true,
    open_on_setup = true,
    open_on_setup_file = true,
    sync_root_with_cwd = true,
    view = {
      adaptive_size = true,
    },
    renderer = {
      full_name = true,
      group_empty = true,
      special_files = {},
      symlink_destination = false,
      indent_markers = {
        enable = true,
      },
      icons = {
        git_placement = "signcolumn",
        show = {
          file = true,
          folder = true,
          folder_arrow = true,
          git = true,
        },
      },
    },
    update_focused_file = {
      enable = true,
      update_root = true,
      ignore_list = { "help" },
    },
    diagnostics = {
      enable = true,
      show_on_dirs = true,
    },
    filters = {
      custom = {
        "^.git$",
        "^.mypy_cache$",
      },
    },
    actions = {
      change_dir = {
        enable = false,
        restrict_above_cwd = true,
      },
      open_file = {
        resize_window = true,
      },
      remove_file = {
        close_window = false,
      },
    },
    log = {
      enable = false,
      truncate = true,
      types = {
        all = false,
        config = false,
        copy_paste = false,
        diagnostics = false,
        git = false,
        profile = false,
        watcher = false,
      },
    },
  })

--Gruvbox theme settings
-- setup must be called before loading the colorscheme
require("gruvbox").setup({
  undercurl = true,
  underline = true,
  bold = true,
  italic = false, -- default=true
  strikethrough = true,
  invert_selection = false,
  invert_signs = false,
  invert_tabline = false,
  invert_intend_guides = false,
  inverse = true, -- invert background for search, diffs, statuslines and errors
  contrast = "hard", -- can be "hard", "soft" or empty string
  palette_overrides = {},
  overrides = {},
  dim_inactive = true, -- default=false
  transparent_mode = false,
})

 require('bufferline').setup {
        options = {
            mode = "buffers", -- set to "tabs" to only show tabpages instead
            numbers = "buffer_id",
            close_command = "bdelete! %d",       -- can be a string | function, see "Mouse actions"
            right_mouse_command = "bdelete! %d", -- can be a string | function, see "Mouse actions"
            left_mouse_command = "buffer %d",    -- can be a string | function, see "Mouse actions"
            middle_mouse_command = nil,          -- can be a string | function, see "Mouse actions"
            indicator = {
                icon = '>', -- this should be omitted if indicator style is not 'icon'
                style = 'icon',
            },
            buffer_close_icon = '',
            modified_icon = '●',
            close_icon = '',
            left_trunc_marker = '',
            right_trunc_marker = '',
            --- name_formatter can be used to change the buffer's label in the bufferline.
            --- Please note some names can/will break the
            --- bufferline so use this at your discretion knowing that it has
            --- some limitations that will *NOT* be fixed.
            name_formatter = function(buf)  -- buf contains:
                  -- name                | str        | the basename of the active file
                  -- path                | str        | the full path of the active file
                  -- bufnr (buffer only) | int        | the number of the active buffer
                  -- buffers (tabs only) | table(int) | the numbers of the buffers in the tab
                  -- tabnr (tabs only)   | int        | the "handle" of the tab, can be converted to its ordinal number using: `vim.api.nvim_tabpage_get_number(buf.tabnr)`
            end,
            max_name_length = 18,
            max_prefix_length = 15, -- prefix used when a buffer is de-duplicated
            truncate_names = true, -- whether or not tab names should be truncated
            tab_size = 18,
            diagnostics = "coc",
            diagnostics_update_in_insert = false,
            -- The diagnostics indicator can be set to nil to keep the buffer name highlight but delete the highlighting
            color_icons = true, -- whether or not to add the filetype icon highlights
            show_buffer_icons = true, -- disable filetype icons for buffers
            show_buffer_close_icons = true,
            show_buffer_default_icon = true, -- whether or not an unrecognised filetype should show a default icon
            show_close_icon = false,
            show_tab_indicators = true,
            show_duplicate_prefix = true, -- whether to show duplicate buffer prefix
            persist_buffer_sort = true, -- whether or not custom sorted buffers should persist
            -- can also be a table containing 2 custom separators
            -- [focused and unfocused]. eg: { '|', '|' }
            separator_style = "thick",
            enforce_regular_tabs = false,
            always_show_bufferline = true,
            hover = {
                enabled = true,
                delay = 200,
                reveal = {'close'}
            },
            sort_by = 'tabs'
        }
    }