refactor(pack)!: collapse Plugin* commands into :Plugin <subcommand>

lua/core/commands.lua

@@ -1,3 +1,5 @@
+local log = require("log")
+
 vim.api.nvim_create_user_command(
     "Q",
     "q<bang>",
@@ -9,51 +11,115 @@ vim.api.nvim_create_user_command(
     { bang = true, desc = "Alias to :qa" }
 )
 
-vim.api.nvim_create_user_command("PluginWatch", function()
-    require("pack").watch()
-end, { desc = "Watch plugin configs for changes and hot-reload" })
-
-vim.api.nvim_create_user_command("PluginUnwatch", function()
-    require("pack").unwatch()
-end, { desc = "Stop watching plugin configs" })
-
 local function complete_plugin_names(lead)
     return vim.tbl_filter(function(name)
         return name:find(lead, 1, true) == 1
     end, require("pack").get_names())
 end
 
-vim.api.nvim_create_user_command("PluginReload", function(opts)
-    require("pack").reload_plugin(opts.args)
-end, {
-    nargs = 1,
-    complete = complete_plugin_names,
-    desc = "Reload a plugin config by name",
-})
+---@class ow.PluginSubcommand
+---@field run fun(args: string[])
+---@field min_args? integer
+---@field max_args? integer
+---@field complete? fun(lead: string): string[]
 
-vim.api.nvim_create_user_command("PluginUpdate", function(opts)
-    local names = #opts.fargs > 0 and opts.fargs or nil
-    require("pack").update(names)
-end, {
-    nargs = "*",
-    complete = complete_plugin_names,
-    desc = "Update plugins (fetch from remote)",
-})
+---@type table<string, ow.PluginSubcommand>
+local plugin_cmds = {
+    watch = {
+        max_args = 0,
+        run = function()
+            require("pack").watch()
+        end,
+    },
+    unwatch = {
+        max_args = 0,
+        run = function()
+            require("pack").unwatch()
+        end,
+    },
+    reload = {
+        min_args = 1,
+        max_args = 1,
+        complete = complete_plugin_names,
+        run = function(args)
+            require("pack").reload_plugin(args[1] --[[@as -nil]])
+        end,
+    },
+    update = {
+        complete = complete_plugin_names,
+        run = function(args)
+            require("pack").update(#args > 0 and args or nil)
+        end,
+    },
+    ["update-offline"] = {
+        complete = complete_plugin_names,
+        run = function(args)
+            require("pack").update(
+                #args > 0 and args or nil,
+                { offline = true }
+            )
+        end,
+    },
+    restore = {
+        complete = complete_plugin_names,
+        run = function(args)
+            require("pack").update(
+                #args > 0 and args or nil,
+                { target = "lockfile" }
+            )
+        end,
+    },
+}
 
-vim.api.nvim_create_user_command("PluginUpdateOffline", function(opts)
-    local names = #opts.fargs > 0 and opts.fargs or nil
-    require("pack").update(names, { offline = true })
-end, {
-    nargs = "*",
-    complete = complete_plugin_names,
-    desc = "Show pending plugin updates without fetching from remote",
-})
+local plugin_cmd_names = vim.tbl_keys(plugin_cmds)
+table.sort(plugin_cmd_names)
 
-vim.api.nvim_create_user_command("PluginRestore", function(opts)
-    local names = #opts.fargs > 0 and opts.fargs or nil
-    require("pack").update(names, { target = "lockfile" })
+vim.api.nvim_create_user_command("Plugin", function(opts)
+    local cmd_name = opts.fargs[1]
+    local cmd = plugin_cmds[cmd_name]
+    if not cmd then
+        log.error(
+            "Plugin: unknown subcommand %q (expected one of: %s)",
+            cmd_name or "",
+            table.concat(plugin_cmd_names, ", ")
+        )
+        return
+    end
+    local args = vim.list_slice(opts.fargs, 2)
+    local bound, n = nil, #args
+    if cmd.min_args and n < cmd.min_args then
+        bound = { "least", cmd.min_args }
+    elseif cmd.max_args and n > cmd.max_args then
+        bound = { "most", cmd.max_args }
+    end
+    if bound then
+        log.error(
+            "Plugin %s: expected at %s %d argument(s), got %d",
+            cmd_name,
+            bound[1],
+            bound[2],
+            n
+        )
+        return
+    end
+    cmd.run(args)
 end, {
-    nargs = "*",
-    complete = complete_plugin_names,
-    desc = "Restore plugins to revisions in the lockfile",
+    nargs = "+",
+    complete = function(arg_lead, cmd_line)
+        local rest = cmd_line:gsub("^%s*%S+%s*", "", 1)
+        local words = vim.split(rest, "%s+", { trimempty = false })
+        if #words <= 1 then
+            return vim.tbl_filter(function(name)
+                return name:find(arg_lead, 1, true) == 1
+            end, plugin_cmd_names)
+        end
+        local cmd = plugin_cmds[words[1]]
+        if not cmd or not cmd.complete then
+            return {}
+        end
+        return cmd.complete(arg_lead)
+    end,
+    desc = "Plugin management (subcommands: "
+        .. table.concat(plugin_cmd_names, ", ")
+        .. ")",
 })