feat(nvim): lualine -> heirline

common/home/neovim/plugins/heirline.lua

@@ -0,0 +1,443 @@
+-- Modified from https://github.com/lauranaujokat/nvim/blob/4102c789d05667f636107e3dae4ac589053ee88d/lua/setups/heirline.lua#L4
+
+local conditions = require('heirline.conditions');
+local utils = require('heirline.utils');
+
+---@class Palette
+---@field [string] any
+local dracula = require('dracula').colors();
+
+local colors = {
+    bright_bg = dracula.selection,
+    dark_bg = dracula.menu,
+    bright_fg = dracula.fg,
+    red = dracula.red,
+    dark_red = utils.get_highlight('DiffDelete').bg,
+    green = dracula.green,
+    blue = dracula.blue,
+    gray = utils.get_highlight('NonText').fg,
+    orange = utils.get_highlight('Constant').fg,
+    purple = utils.get_highlight('Statement').fg,
+    cyan = dracula.cyan,
+    diag_warn = utils.get_highlight('DiagnosticWarn').fg,
+    diag_error = utils.get_highlight('DiagnosticError').fg,
+    diag_hint = utils.get_highlight('DiagnosticHint').fg,
+    diag_info = utils.get_highlight('DiagnosticInfo').fg,
+    git_del = utils.get_highlight('GitSignsDelete').fg,
+    git_add = utils.get_highlight('GitSignsAdd').fg,
+    git_change = utils.get_highlight('GitSignsChange').fg,
+};
+
+require('heirline').load_colors(colors);
+
+local ViMode = {
+    -- get vim current mode, this information will be required by the provider
+    -- and the highlight functions, so we compute it only once per component
+    -- evaluation and store it as a component attribute
+    init = function(self)
+        self.mode = vim.fn.mode(1);
+
+        -- execute this only once, this is required if you want the ViMode
+        -- component to be updated on operator pending mode
+        if not self.once then
+            vim.api.nvim_create_autocmd('ModeChanged', {
+                pattern = '*:*o',
+                command = 'redrawstatus',
+            });
+            self.once = true;
+        end;
+    end,
+
+    static = {
+        mode_names = {
+            n = 'N',
+            no = 'N?',
+            nov = 'N?',
+            noV = 'N?',
+            ['no\22'] = 'N?',
+            niI = 'Ni',
+            niR = 'Nr',
+            niV = 'Nv',
+            nt = 'Nt',
+            v = 'V',
+            vs = 'Vs',
+            V = 'V_',
+            Vs = 'Vs',
+            ['\22'] = '^V',
+            ['\22s'] = '^V',
+            s = 'S',
+            S = 'S_',
+            ['\19'] = '^S',
+            i = 'I',
+            ic = 'Ic',
+            ix = 'Ix',
+            R = 'R',
+            Rc = 'Rc',
+            Rx = 'Rx',
+            Rv = 'Rv',
+            Rvc = 'Rv',
+            Rvx = 'Rv',
+            c = 'C',
+            cv = 'Ex',
+            r = '...',
+            rm = 'M',
+            ['r?'] = '?',
+            ['!'] = '!',
+            t = 'T',
+        },
+
+        mode_colors = {
+            n = 'red',
+            i = 'green',
+            v = 'cyan',
+            V = 'cyan',
+            ['\22'] = 'cyan',
+            c = 'orange',
+            s = 'purple',
+            S = 'purple',
+            ['\19'] = 'purple',
+            R = 'orange',
+            r = 'orange',
+            ['!'] = 'red',
+            t = 'red',
+        },
+    },
+
+    -- To be extra meticulous, we can also add some vim statusline syntax to
+    -- control the padding and make sure our string is always at least 2
+    -- characters long. Plus a nice Icon.
+    provider = function(self)
+        return ' ' .. self.mode_names[self.mode] .. '%)';
+    end,
+
+    -- Same goes for the highlight. Now the foreground will change according to the current mode.
+    hl = function(self)
+        local mode = self.mode:sub(1, 1); -- get only the first mode character
+        return { fg = self.mode_colors[mode], bold = true };
+    end,
+
+    -- Re-evaluate the component only on ModeChanged event
+    update = {
+        'ModeChanged',
+    },
+};
+
+local FileNameBlock = {
+    init = function(self)
+        self.filename = vim.api.nvim_buf_get_name(0);
+    end,
+};
+
+-- FileNameBlock children
+local FileIcon = {
+    init = function(self)
+        local filename = self.filename;
+        local extension = vim.fn.fnamemodify(filename, ':e');
+        self.icon, self.icon_color =
+            require('nvim-web-devicons').get_icon_color(filename, extension, { default = true });
+    end,
+
+    provider = function(self)
+        return self.icon and (self.icon .. ' ');
+    end,
+
+    hl = function(self)
+        return { fg = self.icon_color };
+    end,
+};
+
+local FileName = {
+    provider = function(self)
+        -- first, trim the pattern relative to the current directory. For other
+        -- options, see :h filename-modifers
+        local filename = vim.fn.fnamemodify(self.filename, ':.');
+        if filename == '' then
+            return '[No Name]';
+        end;
+        -- now, if the filename would occupy more than 1/4th of the available
+        -- space, we trim the file path to its initials
+        -- See Flexible Components section below for dynamic truncation
+        if not conditions.width_percent_below(#filename, 0.25) then
+            filename = vim.fn.pathshorten(filename);
+        end;
+        return filename;
+    end,
+
+    hl = { fg = utils.get_highlight('Directory').fg },
+};
+
+local FileFlags = {
+    {
+        condition = function()
+            return vim.bo.modified;
+        end,
+        provider = '[+]',
+        hl = { fg = 'green' },
+    },
+    {
+        condition = function()
+            return not vim.bo.modifiable or vim.bo.readonly;
+        end,
+        provider = '',
+        hl = { fg = 'orange' },
+    },
+};
+
+local FileNameModifer = {
+    hl = function()
+        if vim.bo.modified then
+            -- use `force` because we need to override the child's hl foreground
+            return { fg = 'cyan', bold = true, force = true };
+        end;
+    end,
+};
+
+-- let's add the children to our FileNameBlock component
+FileNameBlock = utils.insert(
+    FileNameBlock,
+    FileIcon,
+    utils.insert(FileNameModifer, FileName), -- a new table where FileName is a child of FileNameModifier
+    unpack(FileFlags),                       -- A small optimisation, since their parent does nothing
+    { provider = '%<' }                      -- this means that the statusline is cut here when there's not enough space
+);
+
+local Ruler = {
+    provider = ' line: %l col: %c',
+    hl = { fg = 'green', bold = false },
+};
+
+local ScrollRuler = {
+    -- %l = current line number
+    -- %L = number of lines in the buffer
+    -- %c = column number
+    -- %P = percentage through file of displayed window
+    provider = '%P',
+};
+
+local ScrollBar = {
+    static = {
+        sbar = { '▁', '▂', '▃', '▄', '▅', '▆', '▇', '█' },
+        -- sbar = { '🭶', '🭷', '🭸', '🭹', '🭺', '🭻' }
+    },
+
+    provider = function(self)
+        local curr_line = vim.api.nvim_win_get_cursor(0)[1];
+        local lines = vim.api.nvim_buf_line_count(0);
+        local i = math.floor((curr_line - 1) / lines * #self.sbar) + 1;
+        return string.rep(self.sbar[i], 2);
+    end,
+
+    hl = { fg = 'cyan', bg = 'bright_bg' },
+};
+
+local LSPActive = {
+    condition = conditions.lsp_attached,
+    update = { 'LspAttach', 'LspDetach' },
+
+    provider = function()
+        local names = {};
+        for _, server in pairs(vim.lsp.get_clients()) do
+            table.insert(names, server.name);
+        end;
+        return ' [' .. table.concat(names, ' ') .. '] ';
+    end,
+
+    hl = { fg = 'green', bold = false },
+};
+
+local spinner_frames = { '⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏' };
+
+-- From https://github.com/mhartington/dotfiles/blob/5961460e3a492f7815259a692fca5ca2a1df924a/config/nvim/lua/mh/statusline/lsp_status.lua#L4
+local function get_lsp_progress()
+    local messages = require('lsp-status/messaging').messages;
+    local buf_messages = messages();
+    local msgs = {};
+
+    for _, msg in ipairs(buf_messages) do
+        local contents;
+
+        if msg.progress then
+            contents = msg.title;
+
+            if msg.spinner then
+                contents = spinner_frames[(msg.spinner % #spinner_frames) + 1] .. ' ' .. contents;
+            end;
+        elseif msg.status then
+            contents = msg.content;
+
+            if msg.uri then
+                local space = math.min(60, math.floor(0.6 * vim.fn.winwidth(0)));
+                local filename = vim.uri_to_fname(msg.uri);
+
+                filename = vim.fn.fnamemodify(filename, ':~:.');
+
+                if #filename > space then
+                    filename = vim.fn.pathshorten(filename);
+                end;
+
+                contents = '(' .. filename .. ') ' .. contents;
+            end;
+        else
+            contents = msg.content;
+        end;
+
+        table.insert(msgs, contents);
+    end;
+
+    return table.concat(msgs, ' ');
+end;
+
+local LSPMessages = {
+    provider = function()
+        local progress = get_lsp_progress();
+
+        if progress == '' then
+            return '';
+        else
+            return '  ' .. progress;
+        end;
+    end,
+    hl = { fg = 'purple' },
+};
+
+local Diagnostics = {
+    condition = conditions.has_diagnostics,
+
+    static = {
+        error_icon = '  ',
+        warn_icon = '  ',
+        info_icon = '  ',
+        hint_icon = '  ',
+    },
+
+    init = function(self)
+        self.errors = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.ERROR });
+        self.warnings = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.WARN });
+        self.hints = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.HINT });
+        self.info = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.INFO });
+    end,
+
+    update = { 'DiagnosticChanged', 'BufEnter' },
+
+    {
+        provider = function(self)
+            -- 0 is just another output, we can decide to print it or not!
+            return self.errors > 0 and (self.error_icon .. self.errors);
+        end,
+        hl = { fg = 'diag_error' },
+    },
+    {
+        provider = function(self)
+            return self.warnings > 0 and (self.warn_icon .. self.warnings);
+        end,
+        hl = { fg = 'diag_warn' },
+    },
+    {
+        provider = function(self)
+            return self.info > 0 and (self.info_icon .. self.info);
+        end,
+        hl = { fg = 'diag_info' },
+    },
+    {
+        provider = function(self)
+            return self.hints > 0 and (self.hint_icon .. self.hints);
+        end,
+        hl = { fg = 'diag_hint' },
+    },
+};
+
+local Git = {
+    condition = conditions.is_git_repo,
+
+    init = function(self)
+        self.status_dict = vim.b.gitsigns_status_dict;
+        self.has_changes = self.status_dict.added ~= 0 or
+            self.status_dict.removed ~= 0 or
+            self.status_dict.changed ~= 0;
+    end,
+
+    hl = { fg = 'orange' },
+
+    { -- git branch name
+        provider = function(self)
+            return ' ' .. self.status_dict.head;
+        end,
+        hl = { bold = true },
+    },
+    -- You could handle delimiters, icons and counts similar to Diagnostics
+    {
+        condition = function(self)
+            return self.has_changes;
+        end,
+        provider = '(',
+    },
+    {
+        provider = function(self)
+            local count = self.status_dict.added or 0;
+            return count > 0 and ('+' .. count);
+        end,
+        hl = { fg = 'git_add' },
+    },
+    {
+        provider = function(self)
+            local count = self.status_dict.removed or 0;
+            return count > 0 and ('-' .. count);
+        end,
+        hl = { fg = 'git_del' },
+    },
+    {
+        provider = function(self)
+            local count = self.status_dict.changed or 0;
+            return count > 0 and ('~' .. count);
+        end,
+        hl = { fg = 'git_change' },
+    },
+    {
+        condition = function(self)
+            return self.has_changes;
+        end,
+        provider = ')',
+    },
+};
+
+local Align = { provider = '%=' };
+local Space = { provider = ' ' };
+
+Left = utils.surround({ '', '' }, 'bright_bg', { ViMode, Diagnostics, LSPMessages });
+Middle = utils.surround({ '', '' }, 'bright_bg', { LSPActive, FileNameBlock, Ruler });
+Right = utils.surround({ '', '' }, 'bright_bg', { Git, Space, ScrollRuler, Space, ScrollBar });
+
+local DefaultStatusline = {
+    hl = { bg = 'dark_bg' },
+    condition = function()
+        return true;
+    end,
+    Left,
+    Align,
+    Middle,
+    Align,
+    Right,
+};
+
+local StatusLines = {
+    hl = function()
+        if conditions.is_active() then
+            return 'StatusLine';
+        else
+            return 'StatusLineNC';
+        end;
+    end,
+
+    -- the first statusline with no condition, or which condition returns true is used.
+    -- think of it as a switch case with breaks to stop fallthrough.
+    fallthrough = false,
+
+    DefaultStatusline,
+};
+
+-- Make it global
+vim.opt.laststatus = 3;
+
+require('heirline').setup({
+    statusline = StatusLines,
+});

common/home/neovim/plugins/neotree.lua

@@ -0,0 +1,63 @@
+-- Override netrw
+vim.g.loaded_netrw = 0;
+vim.g.loaded_netrwPlugin = 0;
+
+require('neo-tree').setup({
+    close_if_last_window = true,
+    enable_refresh_on_write = true,
+
+    window = {
+        width = 22,
+    },
+
+    filesystem = {
+        use_libuv_file_watcher = true,
+        group_empty_dirs = true,
+
+        filtered_items = {
+            visible = false,
+            hide_dotfiles = false,
+            hide_gitignored = true,
+            hide_by_name = {},
+            hide_by_pattern = {},
+            always_show = {},
+            never_show = {},
+            never_show_by_pattern = {},
+        },
+    },
+
+    source_selector = {
+        winbar = true,
+        statusline = false,
+    },
+
+    follow_current_file = {
+        enabled = true,
+        leave_dirs_open = true,
+    },
+});
+
+local function is_neotree_open()
+    local manager = require('neo-tree.sources.manager');
+    local renderer = require('neo-tree.ui.renderer');
+    local state = manager.get_state('filesystem');
+    return renderer.window_exists(state);
+end;
+
+-- Auto open Neo-Tree on big enough window
+vim.api.nvim_create_autocmd({ 'VimEnter', 'VimResized' }, {
+    pattern = '*',
+    callback = function()
+        if vim.api.nvim_eval([[&columns]]) > 100 then
+            if is_neotree_open() == false then
+                vim.cmd[[Neotree show]];
+                vim.cmd[[Neotree close]];
+                vim.cmd[[Neotree show]];
+            end;
+        else
+            if is_neotree_open() then
+                vim.cmd[[Neotree close]];
+            end;
+        end;
+    end,
+});