cli: add 'config init' command

my/core/__main__.py

@@ -9,14 +9,9 @@ from . import LazyLogger
 
 log = LazyLogger('HPI cli')
 
-class Modes:
-    CONFIG  = 'config'
-    DOCTOR  = 'doctor'
-    MODULES = 'modules'
-
 
 def run_mypy(pkg):
-    from .init import get_mycfg_dir
+    from .preinit import get_mycfg_dir
     mycfg_dir = get_mycfg_dir()
     # todo ugh. not sure how to extract it from pkg?
 
@@ -73,6 +68,27 @@ class color:
     RESET = '\033[0m'
 
 
+def config_create(args):
+    from .preinit import get_mycfg_dir
+    mycfg_dir = get_mycfg_dir()
+
+    created = False
+    if not mycfg_dir.exists():
+        # todo not sure about the layout... should I use my/config.py instead?
+        my_config = mycfg_dir / 'my' / 'config' / '__init__.py'
+
+        my_config.parent.mkdir(parents=True)
+        my_config.touch()
+        info(f'created empty config: {my_config}')
+        created = True
+    else:
+        error(f"config directory '{mycfg_dir}' already exists, skipping creation")
+
+    config_check(args)
+    if not created:
+        sys.exit(1)
+
+
 def config_check(args):
     try:
         import my.config as cfg
@@ -127,9 +143,6 @@ def modules_check(args):
             info(f'    - stats: {res}')
 
 
-
-
-
 def list_modules(args):
     # todo with docs/etc?
     from .util import get_modules
@@ -151,17 +164,20 @@ Tool for HPI.
 Work in progress, will be used for config management, troubleshooting & introspection
 ''')
     sp = p.add_subparsers(dest='mode')
-    dp = sp.add_parser(Modes.DOCTOR, help='Run various checks')
+    dp = sp.add_parser('doctor', help='Run various checks')
     dp.add_argument('--verbose', action='store_true', help='Print more diagnosic infomration')
     dp.set_defaults(func=doctor)
 
-    cp = sp.add_parser(Modes.CONFIG, help='Work with configuration')
+    cp = sp.add_parser('config', help='Work with configuration')
     scp = cp.add_subparsers(dest='mode')
-    # if True:
-    #     ccp = scp.add_parser('check', help='Check config')
-    #     ccp.set_defaults(func=config_check)
+    if True:
+        ccp = scp.add_parser('check', help='Check config')
+        ccp.set_defaults(func=config_check)
 
-    mp = sp.add_parser(Modes.MODULES, help='List available modules')
+        icp = scp.add_parser('create', help='Create user config')
+        icp.set_defaults(func=config_create)
+
+    mp = sp.add_parser('modules', help='List available modules')
     mp.set_defaults(func=list_modules)
 
     return p

my/core/init.py

@@ -24,26 +24,13 @@ def assign_module(parent: str, name: str, module: ModuleType) -> None:
 del ModuleType
 
 
-def get_mycfg_dir():
-    import appdirs # type: ignore[import]
-    from pathlib import Path
-    import os
-    # not sure if that's necessary, i.e. could rely on PYTHONPATH instead
-    # on the other hand, by using MY_CONFIG we are guaranteed to load it from the desired path?
-    mvar = os.environ.get('MY_CONFIG')
-    if mvar is not None:
-        mycfg_dir = Path(mvar)
-    else:
-        mycfg_dir = Path(appdirs.user_config_dir('my'))
-    return mycfg_dir
-
-
 # separate function to present namespace pollution
 def setup_config() -> None:
     import sys
     import warnings
     from typing import Optional
 
+    from .preinit import get_mycfg_dir
     mycfg_dir = get_mycfg_dir()
 
     if not mycfg_dir.exists():

my/core/preinit.py

@@ -0,0 +1,13 @@
+from pathlib import Path
+
+def get_mycfg_dir() -> Path:
+    import appdirs # type: ignore[import]
+    import os
+    # not sure if that's necessary, i.e. could rely on PYTHONPATH instead
+    # on the other hand, by using MY_CONFIG we are guaranteed to load it from the desired path?
+    mvar = os.environ.get('MY_CONFIG')
+    if mvar is not None:
+        mycfg_dir = Path(mvar)
+    else:
+        mycfg_dir = Path(appdirs.user_config_dir('my'))
+    return mycfg_dir