extra libs installation dir

glob/manager_core.py

@@ -192,6 +192,8 @@ if comfy_path is None:
 if comfy_base_path is None:
     comfy_base_path = comfy_path
 
+manager_util.ensure_comfy_libs_path(os.path.join(comfy_base_path, 'custom_nodes'))
+
 
 channel_list_template_path = os.path.join(manager_util.comfyui_manager_path, 'channels.list.template')
 git_script_path = os.path.join(manager_util.comfyui_manager_path, "git_helper.py")
@@ -939,9 +941,10 @@ class UnifiedManager:
                     if package_name and not package_name.startswith('#') and package_name not in self.processed_install:
                         self.processed_install.add(package_name)
                         clean_package_name = package_name.split('#')[0].strip()
-                        install_cmd = manager_util.make_pip_cmd(["install", clean_package_name])
+                        install_cmd = manager_util.make_pip_install_cmd(clean_package_name, get_default_custom_nodes_path())
                         if clean_package_name != "" and not clean_package_name.startswith('#'):
-                            res = res and try_install_script(url, repo_path, install_cmd, instant_execution=instant_execution)
+                            if install_cmd is not None:
+                                res = res and try_install_script(url, repo_path, install_cmd, instant_execution=instant_execution)
 
                 pip_fixer.fix_broken()
 
@@ -1993,14 +1996,11 @@ def execute_install_script(url, repo_path, lazy_mode=False, instant_execution=Fa
                     package_name = remap_pip_package(line.strip())
 
                     if package_name and not package_name.startswith('#'):
-                        if '--index-url' in package_name:
-                            s = package_name.split('--index-url')
-                            install_cmd = manager_util.make_pip_cmd(["install", s[0].strip(), '--index-url', s[1].strip()])
-                        else:
-                            install_cmd = manager_util.make_pip_cmd(["install", package_name])
+                        install_cmd = manager_util.make_pip_install_cmd(package_name, get_default_custom_nodes_path())
 
                         if package_name.strip() != "" and not package_name.startswith('#'):
-                            try_install_script(url, repo_path, install_cmd, instant_execution=instant_execution)
+                            if install_cmd is not None:
+                                try_install_script(url, repo_path, install_cmd, instant_execution=instant_execution)
             pip_fixer.fix_broken()
 
         if os.path.exists(install_script_path):

glob/manager_util.py

@@ -16,6 +16,8 @@ import logging
 import platform
 import shlex
 from functools import lru_cache
+from pathlib import Path
+from importlib import metadata
 
 
 cache_lock = threading.Lock()
@@ -25,6 +27,7 @@ cache_dir = os.path.join(comfyui_manager_path, '.cache')  # This path is also up
 
 use_uv = False
 bypass_ssl = False
+libs_map = None
 
 def add_python_path_to_env():
     if platform.system() != "Windows":
@@ -35,6 +38,81 @@ def add_python_path_to_env():
     os.environ['PATH'] = os.path.dirname(sys.executable)+sep+os.environ['PATH']
 
 
+def normalize_package_name(name: str) -> str:
+    return name.lower().replace('-', '_').strip()
+
+
+def is_comfy_libs_enabled() -> bool:
+    value = os.environ.get("COMFY_LIBS", "")
+    return value.lower() == "true"
+
+
+def get_comfy_libs_path(custom_nodes_base_path: str = None) -> str:
+    if custom_nodes_base_path:
+        base_dir = os.path.dirname(os.path.abspath(custom_nodes_base_path))
+        return os.path.join(base_dir, "libs")
+
+    comfy_base_path = os.environ.get('COMFYUI_FOLDERS_BASE_PATH') or os.environ.get('COMFYUI_PATH')
+    if comfy_base_path:
+        return os.path.join(os.path.abspath(comfy_base_path), "libs")
+
+    try:
+        import folder_paths
+        custom_nodes_path = folder_paths.get_folder_paths("custom_nodes")[0]
+        return os.path.join(os.path.dirname(os.path.abspath(custom_nodes_path)), "libs")
+    except Exception:
+        # fallback: .../ComfyUI/custom_nodes/ComfyUI-Manager/glob -> .../ComfyUI/libs
+        return os.path.abspath(os.path.join(comfyui_manager_path, "..", "..", "libs"))
+
+
+def ensure_comfy_libs_path(custom_nodes_base_path: str = None) -> str | None:
+    if not is_comfy_libs_enabled():
+        return None
+
+    libs_path = get_comfy_libs_path(custom_nodes_base_path)
+    os.makedirs(libs_path, exist_ok=True)
+
+    if libs_path not in sys.path:
+        sys.path.insert(0, libs_path)
+
+    py_path = os.environ.get("PYTHONPATH", "")
+    py_parts = py_path.split(os.pathsep) if py_path else []
+    if libs_path not in py_parts:
+        os.environ["PYTHONPATH"] = libs_path if not py_path else libs_path + os.pathsep + py_path
+
+    return libs_path
+
+
+def get_comfy_libs_packages(renew=False, custom_nodes_base_path: str = None):
+    global libs_map
+
+    if not is_comfy_libs_enabled():
+        return {}
+
+    if renew or libs_map is None:
+        libs_map = {}
+        libs_path = ensure_comfy_libs_path(custom_nodes_base_path)
+        if libs_path is None:
+            return {}
+
+        try:
+            for dist in metadata.distributions(path=[libs_path]):
+                name = dist.metadata.get("Name")
+                version = dist.version
+                if name and version:
+                    libs_map[normalize_package_name(name)] = version
+        except Exception:
+            # fallback: best-effort from dist-info folder names
+            try:
+                for item in Path(libs_path).glob("*.dist-info"):
+                    name = item.name.split("-")[0]
+                    libs_map[normalize_package_name(name)] = "0"
+            except Exception:
+                pass
+
+    return libs_map
+
+
 @lru_cache(maxsize=2)
 def get_pip_cmd(force_uv=False):
     """
@@ -94,6 +172,62 @@ def make_pip_cmd(cmd):
     return base_cmd + cmd
 
 
+def get_install_target_for_package(requirement: str, custom_nodes_base_path: str = None):
+    """
+    Return a custom libs target path when COMFY_LIBS is enabled and package does not exist
+    in either site-packages or libs.
+    """
+    if not is_comfy_libs_enabled():
+        return None
+
+    try:
+        parsed = parse_requirement_line(requirement)
+        pkg_name = normalize_package_name(parsed['package']) if parsed is not None else None
+    except Exception:
+        pkg_name = None
+
+    if pkg_name is None:
+        # Fallback for non-StrictVersion requirement specs.
+        match = re.match(r'^([A-Za-z0-9_.+-]+)', requirement)
+        if match is None:
+            return None
+        pkg_name = normalize_package_name(match.group(1))
+    installed = get_installed_packages().get(pkg_name)
+    if installed is not None:
+        return None
+
+    libs_packages = get_comfy_libs_packages(custom_nodes_base_path=custom_nodes_base_path)
+    if pkg_name in libs_packages:
+        return None
+
+    return ensure_comfy_libs_path(custom_nodes_base_path)
+
+
+def make_pip_install_cmd(requirement: str, custom_nodes_base_path: str = None):
+    """
+    Build a pip install command from a requirement expression.
+    Applies --target <libs> when COMFY_LIBS=True and the package is not installed.
+    """
+    requirement = requirement.split('#')[0].strip()
+    if requirement == "" or requirement.startswith("#"):
+        return None
+
+    install_args = ["install"]
+    target = get_install_target_for_package(requirement, custom_nodes_base_path=custom_nodes_base_path)
+    if target is not None:
+        install_args += ["--target", target]
+
+    if '--index-url' in requirement:
+        s = requirement.split('--index-url', 1)
+        package = s[0].strip()
+        index_url = s[1].strip()
+        install_args += [package, '--index-url', index_url]
+    else:
+        install_args += [requirement]
+
+    return make_pip_cmd(install_args)
+
+
 # DON'T USE StrictVersion - cannot handle pre_release version
 # try:
 #     from distutils.version import StrictVersion
@@ -305,12 +439,19 @@ def get_installed_packages(renew=False):
             logging.error("[ComfyUI-Manager] Failed to retrieve the information of installed pip packages.")
             return {}
 
+    if is_comfy_libs_enabled():
+        for name, ver in get_comfy_libs_packages(renew=renew).items():
+            if name not in pip_map:
+                pip_map[name] = ver
+
     return pip_map
 
 
 def clear_pip_cache():
     global pip_map
+    global libs_map
     pip_map = None
+    libs_map = None
 
 
 def parse_requirement_line(line):

prestartup_script.py

@@ -85,6 +85,7 @@ cm_global.register_api('cm.is_import_failed_extension', is_import_failed_extensi
 comfyui_manager_path = os.path.abspath(os.path.dirname(__file__))
 
 custom_nodes_base_path = folder_paths.get_folder_paths('custom_nodes')[0]
+manager_util.ensure_comfy_libs_path(custom_nodes_base_path)
 
 # Check for System User API availability (PR #10966)
 _has_system_user_api = hasattr(folder_paths, 'get_system_user_directory')
@@ -642,13 +643,10 @@ def execute_lazy_install_script(repo_path, executable):
             package_name = remap_pip_package(line.strip())
             package_name = package_name.split('#')[0].strip()
             if package_name and not is_installed(package_name):
-                if '--index-url' in package_name:
-                    s = package_name.split('--index-url')
-                    install_cmd = manager_util.make_pip_cmd(["install", s[0].strip(), '--index-url', s[1].strip()])
-                else:
-                    install_cmd = manager_util.make_pip_cmd(["install", package_name])
+                install_cmd = manager_util.make_pip_install_cmd(package_name, custom_nodes_base_path)
 
-                process_wrap(install_cmd, repo_path)
+                if install_cmd is not None:
+                    process_wrap(install_cmd, repo_path)
 
     if os.path.exists(install_script_path) and f'{repo_path}/install.py' not in processed_install:
         processed_install.add(f'{repo_path}/install.py')