feat(picker): added lazy source to search for a plugin spec. Closes #680

lua/snacks/picker/config/sources.lua

@@ -328,6 +328,13 @@ M.keymaps = {
   },
 }
 
+--- Search for a lazy.nvim plugin spec
+M.lazy = {
+  finder = "lazy_spec",
+  live = true,
+  search = "'",
+}
+
 -- Search lines in the current buffer
 ---@class snacks.picker.lines.Config: snacks.picker.Config
 ---@field buf? number

lua/snacks/picker/source/lazy.lua

@@ -0,0 +1,37 @@
+local M = {}
+
+---@type snacks.picker.finder
+function M.spec(opts, ctx)
+  local spec = require("lazy.core.config").spec
+  local Util = require("lazy.core.util")
+  local paths = {} ---@type string[]
+  for _, import in ipairs(spec.modules) do
+    Util.lsmod(import, function(modname, modpath)
+      paths[#paths + 1] = modpath
+    end)
+  end
+  local names = {} ---@type string[]
+  for _, frag in pairs(spec.meta.fragments.fragments) do
+    local name = frag.spec[1] or frag.name
+    if not vim.tbl_contains(names, name) then
+      names[#names + 1] = name
+    end
+  end
+  local matcher = require("snacks.picker.core.matcher").new(ctx.picker.opts.matcher)
+  matcher:init(ctx.filter.search)
+  local regex = {} ---@type string[]
+  for _, name in ipairs(names) do
+    local item = { text = name } ---@type snacks.picker.finder.Item
+    if matcher:match(item) > 0 then
+      table.insert(regex, '"' .. name .. '"')
+    end
+  end
+  ctx.filter.search = "^(?:(?!\\s*--)).*(?:" .. table.concat(regex, "|") .. ")"
+  opts = vim.tbl_extend("force", vim.deepcopy(opts), {
+    dirs = paths,
+    args = { "--pcre2" },
+  })
+  return require("snacks.picker.source.grep").grep(opts, ctx)
+end
+
+return M