feat: added early nvim-dap configuration

still needs some work, it's a pretty weak configuration. It would also
be very cool if language-specific configurations were loaded with
ftplugin, rather than for each file.

lua/colors.lua

@@ -249,7 +249,7 @@ end
 function PALETTE:set_telescope_colors()
 	--                                                           FG                     BG                      ATTR
 	vim.api.nvim_set_hl(0, "TelescopeBorder",          HIGHLIGHT(self.black.bright,     nil,                    nil));
-	-- vim.api.nvim_set_hl(0, "TelescopePromptBorder",    highlight(self.black.bright,     nil,                    nil));
+	-- vim.api.nvim_set_hl(0, "TelescopePromptBorder",    highlight(self.black.bright,     nil,                    nil))
 	-- vim.api.nvim_set_hl(0, "TelescopePromptNormal",    highlight());
 	-- vim.api.nvim_set_hl(0, "TelescopePromptPrefix",    highlight());
 	-- vim.api.nvim_set_hl(0, "TelescopeNormal",          highlight());
@@ -260,6 +260,38 @@ function PALETTE:set_telescope_colors()
 	-- vim.api.nvim_set_hl(0, "TelescopePreviewLine",     highlight());
 end
 
+function PALETTE:set_dap_colors()
+	--                                                           FG                     BG                      ATTR
+	vim.api.nvim_set_hl(0, "DapMarks",                 HIGHLIGHT(self.purple.normal,    nil,                    {bold=true}))
+	vim.api.nvim_set_hl(0, "DapStep",                  HIGHLIGHT(nil,                   self.black.normal,      nil))
+	vim.api.nvim_set_hl(0, "DapStepNr",                HIGHLIGHT(self.purple.normal,    self.black.normal,      {bold=true}))
+	-- DapUIVariable  xxx links to Normal
+	-- DapUIScope     xxx guifg=#00F1F5
+	-- DapUIType      xxx guifg=#D484FF
+	-- DapUIValue     xxx links to Normal
+	-- DapUIModifiedValue xxx gui=bold guifg=#00F1F5
+	-- DapUIDecoration xxx guifg=#00F1F5
+	-- DapUIThread    xxx guifg=#A9FF68
+	-- DapUIStoppedThread xxx guifg=#00f1f5
+	-- DapUIFrameName xxx links to Normal
+	-- DapUISource    xxx guifg=#D484FF
+	-- DapUILineNumber xxx guifg=#00f1f5
+	-- DapUIFloatBorder xxx guifg=#00F1F5
+	-- DapUIWatchesEmpty xxx guifg=#F70067
+	-- DapUIWatchesValue xxx guifg=#A9FF68
+	-- DapUIWatchesError xxx guifg=#F70067
+	-- DapUIBreakpointsPath xxx guifg=#00F1F5
+	-- DapUIBreakpointsInfo xxx guifg=#A9FF68
+	-- DapUIBreakpointsCurrentLine xxx gui=bold guifg=#A9FF68
+	-- DapUIBreakpointsLine xxx links to DapUILineNumber
+	-- DapUIBreakpointsDisabledLine xxx guifg=#424242
+	vim.fn.sign_define('DapBreakpoint',          {text='⬤', texthl='DapMarks', linehl='', numhl=''})
+	vim.fn.sign_define('DapBreakpointCondition', {text='◯', texthl='DapMarks', linehl='', numhl=''})
+	vim.fn.sign_define('DapBreakpointRejected',  {text='⦻', texthl='DapMarks', linehl='', numhl=''})
+	vim.fn.sign_define('DapLogPoint',            {text='□', texthl='DapMarks', linehl='', numhl=''})
+	vim.fn.sign_define('DapStopped',             {text='➤', texthl='DapStepNr', linehl='DapStep', numhl='DapStepNr'})
+end
+
 --- set all theme highlight groups
 function PALETTE:set_colors()
 	-- core
@@ -273,6 +305,7 @@ function PALETTE:set_colors()
 	self:set_treesitter_colors()
 	self:set_gitsigns_colors()
 	self:set_telescope_colors()
+	self:set_dap_colors()
 end
 
 return PALETTE

lua/keybinds.lua

@@ -28,12 +28,10 @@ local KEYBINDS = {
 --|| GLOBAL KEYBINDS
 function KEYBINDS:set_global_keys(opts)
 	-- Quick settings
-	vim.keymap.set('n', '<F10>', ':set hls!<CR>', opts)
-	vim.keymap.set('n', '<F9>',  ':set wrap!<CR>', opts)
-	vim.keymap.set('n', '<F8>',  ':set list!<CR>', opts)
-	vim.keymap.set('n', '<F7>',  ':set spell!<CR>', opts)
-	vim.keymap.set('n', '<F6>',  ':Hexmode<CR>', opts)
-	vim.keymap.set('n', '<F5>',  ':Telescope oldfiles<CR>', opts)
+	vim.keymap.set('n', '<M-h>', ':set hls!<CR>', opts)
+	vim.keymap.set('n', '<M-w>', ':set wrap!<CR>', opts)
+	vim.keymap.set('n', '<M-l>', ':set list!<CR>', opts)
+	vim.keymap.set('n', '<M-s>', ':set spell!<CR>', opts)
 	-- Files navigation
 	vim.keymap.set('n', '<C-S-t>', ':tabnew<CR>', opts)
 	vim.keymap.set('n', '<M-t>', ':tabnew<CR>', opts) -- fallback for windows
@@ -90,6 +88,7 @@ end
 
 function KEYBINDS:set_telescope_keys(opts)
 	-- File navigation
+	vim.keymap.set('n', '<C-ESC>', ':Telescope oldfiles<CR>', opts)
 	vim.keymap.set('n', '<C-f>', ':Telescope find_files<CR>', opts)
 	vim.keymap.set('n', 'F', ':Telescope find_files<CR>', opts) -- fallback for windows
 	vim.keymap.set('n', '<C-,>', ':Telescope live_grep<CR>', opts)
@@ -112,4 +111,16 @@ function KEYBINDS:set_telescope_keys(opts)
 	vim.keymap.set('n', '<C-PageDown>', ':Telescope diagnostics bufnr=0<CR>', opts)
 end
 
+function KEYBINDS:set_dap_keys(opts)
+	-- dapui
+	local dap = require('dap')
+	local dapui = require('dapui')
+	vim.keymap.set('n', '<F2>' , function() dapui.toggle({}) end, {})
+	vim.keymap.set('n', '<F3>' , function() dap.toggle_breakpoint() end, {})
+	vim.keymap.set('n', '<F5>' , function() dap.continue() end, {})
+	vim.keymap.set('n', '<F10>', function() dap.step_over() end, {})
+	vim.keymap.set('n', '<F11>', function() dap.step_into() end, {})
+	vim.keymap.set('n', '<F12>', function() dap.step_out() end, {})
+end
+
 return KEYBINDS

lua/plugins.lua

@@ -38,13 +38,68 @@ local init_fn = function(use)
 	use 'neovim/nvim-lspconfig'         -- import LSP configurations
 	use 'simrat39/rust-tools.nvim'      -- extra LSP defaults for rust
 
-	use 'hrsh7th/nvim-cmp'              -- completion engine core
-	use 'hrsh7th/cmp-nvim-lsp'          -- completions based on LSP
-	use 'hrsh7th/cmp-path'              -- completions based on paths
-	use 'hrsh7th/cmp-buffer'            -- completions based on buffer
-
 	use 'L3MON4D3/LuaSnip'              -- snippet engine
-	use 'saadparwaiz1/cmp_luasnip'      -- incorporate with completions
+
+	use {
+		'mfussenegger/nvim-dap',        -- debugger adapter protocol
+		requires = {
+			'rcarriga/nvim-dap-ui',     --batteries-included debugger ui
+		},
+		config = function()
+			local dap = require('dap')
+			dap.adapters.python = {
+				type = 'executable',
+				command = (vim.fn.environ()["VIRTUAL_ENV"] or "") .. "/bin/python",
+				args = { '-m', 'debugpy.adapter' },
+			}
+			dap.configurations.python = {
+				{
+					name = "Launch file",
+					type = "python",
+					request = "launch",
+					program = vim.fn.expand('%'),
+					cwd = '${workspaceFolder}',
+				},
+			}
+			dap.adapters.lldb = {
+				type = 'executable',
+				command = '/usr/bin/lldb-vscode', -- adjust as needed, must be absolute path
+				name = 'lldb'
+			}
+			dap.configurations.cpp = {
+				{
+					name = 'Launch',
+					type = 'lldb',
+					request = 'launch',
+					program = function()
+						local program = ""
+						for i in string.gmatch(vim.fn.getcwd(), "([^/]+)") do
+							program = i
+						end
+						return vim.fn.getcwd() .. "/target/debug/" .. program -- TODO can I put startup file somewhere?
+					end,
+					cwd = '${workspaceFolder}',
+				},
+			}
+			dap.configurations.c = dap.configurations.cpp
+			dap.configurations.rust = dap.configurations.cpp
+			require('keybinds'):set_dap_keys({})
+			require('dapui').setup()
+		end,
+	}
+
+	use {
+		'hrsh7th/nvim-cmp',             -- completion engine core
+		requires = {
+			'hrsh7th/cmp-nvim-lsp',                 -- complete with LSP
+			'hrsh7th/cmp-nvim-lsp-signature-help',  -- complete function signatures
+			'hrsh7th/cmp-nvim-lsp-document-symbol', -- complete document symbols
+			'hrsh7th/cmp-path',                     -- complete paths
+			'hrsh7th/cmp-buffer',                   -- complete based on buffer
+			'rcarriga/cmp-dap',                     -- complete in debugger
+			'saadparwaiz1/cmp_luasnip',             -- complete with snippets
+		},
+	}
 
 	use {
 		'norcalli/nvim-colorizer.lua',
@@ -61,7 +116,7 @@ local init_fn = function(use)
 		config = function()
 			require('telescope').load_extension('fzf')
 			require("telescope").load_extension("ui-select")
-			require('keybinds').set_telescope_keys({})
+			require('keybinds'):set_telescope_keys({})
 		end
 	}
 
@@ -118,23 +173,32 @@ local init_fn = function(use)
 	-- TODO can I put these setup steps inside their respective config callback?
 	-- TODO can I make them also load their highlight groups?
 	
+
 	local cmp = require('cmp')
 	cmp.setup({
 		snippet = {
 			expand = function(args) require('luasnip').lsp_expand(args.body) end,
 		},
-		mapping = cmp.mapping.preset.insert({
-			['<C-Space>'] = cmp.mapping.complete(),
-			['<C-e>'] = cmp.mapping.abort(),
-			['<C-Tab>'] = function(fallback) if cmp.visible() then cmp.select_next_item() else fallback() end end,
-			['<Tab>'] = cmp.mapping.confirm({ select = true }),
-		}),
+		mapping = cmp.mapping.preset.insert({ ['<Tab>'] = cmp.mapping.confirm({ select = true }) }),
 		sources = cmp.config.sources({
+			{ name = 'nvim_lsp_signature_help', max_item_count = 1 },
+			{ name = 'luasnip' },
 			{ name = 'nvim_lsp' },
-		}, {
-			{ name = 'path' },
-		}, {
-			{ name = 'buffer' },
+			{ name = 'path', max_item_count = 3 },
+			{ name = 'buffer', keyword_length = 3, max_item_count = 3 },
+		}),
+	})
+	cmp.setup.filetype({ "dap-repl", "dapui_watches" }, {
+		mapping = cmp.mapping.preset.insert({ ['<Tab>'] = cmp.mapping.confirm({ select = true }) }),
+		sources = {
+			{ name = 'dap' },
+		},
+	})
+	cmp.setup.cmdline('/', {
+		mapping = cmp.mapping.preset.cmdline(),
+		sources = cmp.config.sources({
+			{ name = 'nvim_lsp_document_symbol' },
+			{ name = 'buffer', keyword_length = 3 },
 		})
 	})
 
@@ -156,7 +220,8 @@ local init_fn = function(use)
 		server = {
 			capabilities = capabilities,
 			on_attach = set_lsp_binds,
-		}
+		},
+		dap = { adapter = require('dap').adapters.lldb },
 	})
 	rust_tools.inlay_hints.enable()
 
@@ -191,4 +256,3 @@ end
 
 return require('packer').startup(init_fn)
 
-