From 605da54f245abc2004b70f719fa1ebae382bd79f Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Wed, 2 Mar 2022 13:54:52 +0100
Subject: [PATCH] home: vim: switch to 'lualine'

---
 home/vim/default.nix                   |  3 +-
 home/vim/plugin/settings/lightline.vim | 85 --------------------------
 home/vim/plugin/settings/lualine.vim   | 63 +++++++++++++++++++
 3 files changed, 64 insertions(+), 87 deletions(-)
 delete mode 100644 home/vim/plugin/settings/lightline.vim
 create mode 100644 home/vim/plugin/settings/lualine.vim

diff --git a/home/vim/default.nix b/home/vim/default.nix
index ea964cc..76d3425 100644
--- a/home/vim/default.nix
+++ b/home/vim/default.nix
@@ -31,8 +31,8 @@ in
 
     plugins = with pkgs.vimPlugins; [
       # Theming
-      lightline-vim # Fancy status bar
       vim-gruvbox8 # Nice dark theme
+      lualine-nvim # A lua-based status line
 
       # tpope essentials
       vim-commentary # Easy comments
@@ -64,7 +64,6 @@ in
       git-messenger-vim # A simple blame window
 
       # LSP and linting
-      lightline-lsp
       lsp_lines-nvim # Show diagnostics *over* regions
       null-ls-nvim # LSP integration for linters and formatters
       (nvim-treesitter.withPlugins (_: pkgs.tree-sitter.allGrammars)) # Better highlighting
diff --git a/home/vim/plugin/settings/lightline.vim b/home/vim/plugin/settings/lightline.vim
deleted file mode 100644
index 14079f6..0000000
--- a/home/vim/plugin/settings/lightline.vim
+++ /dev/null
@@ -1,85 +0,0 @@
-" Initialise light-line setting structure
-let g:lightline={}
-
-" Use the wombat colorscheme
-let g:lightline.colorscheme='wombat'
-
-" Status-line for active buffer
-let g:lightline.active={
-  \     'left': [
-  \         [ 'mode', 'paste' ],
-  \         [ 'gitbranch', 'readonly', 'filename', 'modified' ],
-  \         [ 'spell' ],
-  \     ],
-  \     'right': [
-  \         [ 'lineinfo' ],
-  \         [ 'percent' ],
-  \         [ 'fileformat', 'fileencoding', 'filetype' ],
-  \         [ 'linter_errors', 'linter_warnings', 'linter_infos', 'linter_hints', 'linter_ok' ],
-  \         [ 'ctags_status' ],
-  \     ]
-  \ }
-
-" Status-line for inactive buffer
-let g:lightline.inactive={
-  \     'left': [
-  \         [ 'filename' ],
-  \     ],
-  \     'right': [
-  \         [ 'lineinfo' ],
-  \         [ 'percent' ],
-  \     ],
-  \ }
-
-" Which component should be written using which function
-let g:lightline.component_function={
-  \     'readonly': 'LightlineReadonly',
-  \     'modified': 'LightlineModified',
-  \     'gitbranch': 'LightlineFugitive',
-  \ }
-
-" Which component can be expanded by using which function
-let g:lightline.component_expand={
-  \    'linter_hints': 'lightline#lsp#hints',
-  \    'linter_infos': 'lightline#lsp#infos',
-  \    'linter_warnings': 'lightline#lsp#warnings',
-  \    'linter_errors': 'lightline#lsp#errors',
-  \    'linter_ok': 'lightline#lsp#ok',
-  \ }
-
-" How to color custom components
-let g:lightline.component_type={
-  \   'readonly': 'error',
-  \   'linter_hints': 'right',
-  \   'linter_infos': 'right',
-  \   'linter_warnings': 'warning',
-  \   'linter_errors': 'error',
-  \   'linter_ok': 'right',
-  \ }
-
-" Show pretty icons instead of text for linting status
-let g:lightline#lsp#indicator_hints='🔍'
-let g:lightline#lsp#indicator_infos='ℹ'
-let g:lightline#lsp#indicator_warnings='◆'
-let g:lightline#lsp#indicator_errors='✗'
-let g:lightline#lsp#indicator_ok='✓'
-
-
-" Show a lock icon when editing a read-only file when it makes sense
-function! LightlineReadonly()
-    return &ft!~?'help\|vimfiler\|netrw' && &readonly ? '🔒' : ''
-endfunction
-
-" Show a '+' when the buffer is modified, '-' if not, when it makes sense
-function! LightlineModified()
-    return &ft=~'help\|vimfiler\|netrw' ? '' : &modified ? '+' : &modifiable ? '' : '-'
-endfunction
-
-" Show branch name with nice icon in status line, when it makes sense
-function! LightlineFugitive()
-    if &ft!~?'help\|vimfiler\|netrw' && exists('*fugitive#head')
-            let branch=fugitive#head()
-            return branch!=#'' ? ' '.branch : ''
-    endif
-    return ''
-endfunction
diff --git a/home/vim/plugin/settings/lualine.vim b/home/vim/plugin/settings/lualine.vim
new file mode 100644
index 0000000..15e3a80
--- /dev/null
+++ b/home/vim/plugin/settings/lualine.vim
@@ -0,0 +1,63 @@
+lua << EOF
+local lualine = require("lualine")
+local utils = require("ambroisie.utils")
+
+local function list_spell_languages()
+    if not vim.opt.spell:get() then
+        return ""
+    end
+
+    return table.concat(vim.opt.spelllang:get(), ", ")
+end
+
+local function list_lsp_clients()
+    local client_names = utils.list_lsp_clients()
+
+    if #client_names == 0 then
+        return ""
+    end
+
+    return "[ " .. table.concat(client_names, " ") .. " ]"
+end
+
+lualine.setup({
+    options = {
+        icons_enabled = false,
+        section_separators = "",
+        component_separators = "|",
+    },
+    sections = {
+        lualine_a = {
+            { "mode" },
+        },
+        lualine_b = {
+            { "branch" },
+            { "filename", symbols = { readonly = "🔒" } },
+        },
+        lualine_c = {
+            { list_spell_languages },
+        },
+        lualine_x = {
+            { list_lsp_clients },
+            {
+                "diagnostics",
+                -- Only use the diagnostics API
+                sources = { "nvim_diagnostic" },
+            },
+        },
+        lualine_y = {
+            { "fileformat" },
+            { "encoding" },
+            { "filetype" },
+        },
+        lualine_z = {
+            "location",
+        },
+    },
+    extensions = {
+        "fugitive",
+        "fzf",
+        "quickfix",
+    },
+})
+EOF