feat(nvim): completion sources

config/nvim/lua/config/cmp_cc.lua

@@ -0,0 +1,82 @@
+local types = {
+    { 'feat', 'A new feature (MINOR in semver)' },
+    { 'fix', 'A bug fix (PATCH in semver)' },
+    { 'docs', 'Documentation only' },
+    { 'style', 'Formatting, whitespace — no behavioral change' },
+    { 'refactor', 'Restructures code without changing behavior' },
+    { 'perf', 'Performance improvement' },
+    { 'test', 'Add or correct tests' },
+    { 'build', 'Build system or external dependencies' },
+    { 'ci', 'CI/CD configuration and scripts' },
+    { 'chore', 'Routine tasks outside src and test' },
+    { 'revert', 'Reverts a previous commit' },
+}
+
+local source = {}
+
+function source.new()
+    local self = setmetatable({}, { __index = source })
+    self.Kind = require('blink.cmp.types').CompletionItemKind
+    self.items = {}
+    for _, t in ipairs(types) do
+        self.items[#self.items + 1] = {
+            label = t[1],
+            kind = self.Kind.Keyword,
+            documentation = {
+                kind = 'markdown',
+                value = t[2]
+            },
+        }
+    end
+    return self
+end
+
+function source:enabled()
+    return vim.tbl_contains({ 'gitcommit', 'octo', 'markdown' }, vim.bo.filetype)
+end
+
+function source:get_completions(ctx, callback)
+    local row, col = unpack(ctx.cursor)
+    local before = ctx.line:sub(1, col)
+
+    if not before:find('%s') then
+        if row > 1 then
+            local item = {
+                label = 'BREAKING CHANGE',
+                kind = self.Kind.Keyword,
+                documentation = {
+                    kind = 'markdown',
+                    value = 'Adds a `BREAKING CHANGE` footer and marks the commit header with `!`.',
+                },
+            }
+            local first = vim.api.nvim_buf_get_lines(0, 0, 1, false)[1]
+            if not first:match('!:') then
+                local colon = first:find(':')
+                if colon then
+                    item.additionalTextEdits = {
+                        {
+                            range = {
+                                start = { line = 0, character = colon - 1 },
+                                ['end'] = { line = 0, character = colon - 1 },
+                            },
+                            newText = '!',
+                        },
+                    }
+                end
+            end
+            callback({ items = { item } })
+            return
+        elseif not before:find('[():]') then
+            callback({
+                is_incomplete_forward = false,
+                is_incomplete_backward = false,
+                items = vim.deepcopy(self.items),
+            })
+            return
+        end
+    end
+
+    callback({ items = {} })
+end
+
+return source