feat(pack)!: update get() to return revision regardless of opts.info

Problem: The revision data is returned behind `opts.info` flag because
  it required extra Git calls. With lockfile it is not the case.

Solution: Use lockfile to always set `rev` field in output of `get()`.

runtime/doc/pack.txt

@@ -379,7 +379,7 @@ get({names}, {opts})                                          *vim.pack.get()*
         • {branches}? (`string[]`) Available Git branches (first is default).
           Missing if `info=false`.
         • {path} (`string`) Plugin's path on disk.
-        • {rev}? (`string`) Current Git revision. Missing if `info=false`.
+        • {rev} (`string`) Current Git revision.
         • {spec} (`vim.pack.SpecResolved`) A |vim.pack.Spec| with resolved
           `name`.
         • {tags}? (`string[]`) Available Git tags. Missing if `info=false`.

runtime/lua/vim/pack.lua

@@ -1080,7 +1080,7 @@ end
 --- @field active boolean Whether plugin was added via |vim.pack.add()| to current session.
 --- @field branches? string[] Available Git branches (first is default). Missing if `info=false`.
 --- @field path string Plugin's path on disk.
---- @field rev? string Current Git revision. Missing if `info=false`.
+--- @field rev string Current Git revision.
 --- @field spec vim.pack.SpecResolved A |vim.pack.Spec| with resolved `name`.
 --- @field tags? string[] Available Git tags. Missing if `info=false`.
 
@@ -1096,7 +1096,6 @@ local function add_p_data_info(p_data_list)
     --- @async
     funs[i] = function()
       p_data.branches = git_get_branches(path)
-      p_data.rev = git_get_hash('HEAD', path)
       p_data.tags = git_get_tags(path)
     end
   end
@@ -1127,8 +1126,11 @@ function M.get(names, opts)
   local used_names = {} --- @type table<string,boolean>
   for i = 1, n_active_plugins do
     if active[i] and (not names or vim.tbl_contains(names, active[i].spec.name)) then
-      res[#res + 1] = { spec = vim.deepcopy(active[i].spec), path = active[i].path, active = true }
+      local name = active[i].spec.name
-      used_names[active[i].spec.name] = true
+      local spec = vim.deepcopy(active[i].spec)
+      local rev = (plugin_lock.plugins[name] or {}).rev
+      res[#res + 1] = { spec = spec, path = active[i].path, rev = rev, active = true }
+      used_names[name] = true
     end
   end
 
@@ -1138,7 +1140,7 @@ function M.get(names, opts)
     local is_in_names = not names or vim.tbl_contains(names, name)
     if not active_plugins[path] and is_in_names then
       local spec = { name = name, src = l_data.src, version = l_data.version }
-      res[#res + 1] = { spec = spec, path = path, active = false }
+      res[#res + 1] = { spec = spec, path = path, rev = l_data.rev, active = false }
       used_names[name] = true
     end
   end

test/functional/plugin/pack_spec.lua

@@ -686,9 +686,8 @@ describe('vim.pack', function()
         eq({}, n.exec_lua('return { vim.g._plugin, vim.g._after_plugin }'))
 
         -- Plugins should still be marked as "active", since they were added
-        plugindirs_data.active = true
+        eq(true, exec_lua('return vim.pack.get({ "plugindirs" })[1].active'))
-        basic_data.active = true
+        eq(true, exec_lua('return vim.pack.get({ "basic" })[1].active'))
-        eq({ plugindirs_data, basic_data }, exec_lua('return vim.pack.get(nil, { info = false })'))
       end
 
       -- Works on initial install
@@ -1352,10 +1351,10 @@ describe('vim.pack', function()
     local make_basic_data = function(active, info)
       local spec = { name = 'basic', src = repos_src.basic, version = 'feat-branch' }
       local path = pack_get_plug_path('basic')
-      local res = { active = active, path = path, spec = spec }
+      local rev = git_get_hash('feat-branch', 'basic')
+      local res = { active = active, path = path, spec = spec, rev = rev }
       if info then
         res.branches = { 'main', 'feat-branch' }
-        res.rev = git_get_hash('feat-branch', 'basic')
         res.tags = { 'some-tag' }
       end
       return res
@@ -1364,10 +1363,10 @@ describe('vim.pack', function()
     local make_defbranch_data = function(active, info)
       local spec = { name = 'defbranch', src = repos_src.defbranch }
       local path = pack_get_plug_path('defbranch')
-      local res = { active = active, path = path, spec = spec }
+      local rev = git_get_hash('dev', 'defbranch')
+      local res = { active = active, path = path, spec = spec, rev = rev }
       if info then
         res.branches = { 'dev', 'main' }
-        res.rev = git_get_hash('dev', 'defbranch')
         res.tags = {}
       end
       return res