make nb_export a cli [Enhancement]

Author: hamelsmu

nbdev/_modidx.py

@@ -23,6 +23,7 @@
                            'nbdev.cli._update_repo_meta': ('api/cli.html#_update_repo_meta', 'nbdev/cli.py'),
                            'nbdev.cli.chelp': ('api/cli.html#chelp', 'nbdev/cli.py'),
                            'nbdev.cli.extract_tgz': ('api/cli.html#extract_tgz', 'nbdev/cli.py'),
+                           'nbdev.cli.nb_export_cli': ('api/cli.html#nb_export_cli', 'nbdev/cli.py'),
                            'nbdev.cli.nbdev_filter': ('api/cli.html#nbdev_filter', 'nbdev/cli.py'),
                            'nbdev.cli.nbdev_new': ('api/cli.html#nbdev_new', 'nbdev/cli.py'),
                            'nbdev.cli.nbdev_update_license': ('api/cli.html#nbdev_update_license', 'nbdev/cli.py')},

nbdev/cli.py

@@ -13,6 +13,7 @@
 from .test import *
 from .clean import *
 from .quarto import nbdev_readme, refresh_quarto_yml
+from .export import nb_export
 from .frontmatter import FrontmatterProc
 
 from execnb.nbio import *
@@ -27,7 +28,7 @@
 import os, tarfile, sys
 
 # %% auto 0
-__all__ = ['mapping', 'nbdev_filter', 'extract_tgz', 'nbdev_new', 'nbdev_update_license', 'chelp']
+__all__ = ['mapping', 'nbdev_filter', 'extract_tgz', 'nbdev_new', 'nbdev_update_license', 'nb_export_cli', 'chelp']
 
 # %% ../nbs/api/13_cli.ipynb
 @call_parse
@@ -158,6 +159,13 @@ def nbdev_update_license(
     lic.write(body)
     print(f"License updated from {curr_lic} to {to}")
 
+# %% ../nbs/api/13_cli.ipynb
+@call_parse
+@delegates(nb_export, but=['procs', 'mod_maker'])
+def nb_export_cli(nbname, lib_path, name, debug:Param("debug flag", store_true), **kwargs): 
+    "Export a single nbdev notebook to a python script."
+    return nb_export(nbname=nbname, lib_path=lib_path, name=name, debug=debug, **kwargs)
+
 # %% ../nbs/api/13_cli.ipynb
 @call_parse
 def chelp():

nbdev/export.py

@@ -14,6 +14,7 @@
 from fastcore.script import *
 from fastcore.basics import *
 from fastcore.imports import *
+from fastcore.meta import *
 
 from collections import defaultdict
 
@@ -63,12 +64,18 @@ def scrub_magics(cell): # Cell to format
 def optional_procs():
     "An explicit list of processors that could be used by `nb_export`"
     return L([p for p in nbdev.export.__all__
-              if p not in ["nb_export", "ExportModuleProc", "optional_procs"]])
+              if p not in ["nb_export", "nb_export_cli", "ExportModuleProc", "optional_procs"]])
 
 # %% ../nbs/api/04_export.ipynb
-def nb_export(nbname, lib_path=None, procs=None, debug=False, mod_maker=ModuleMaker, name=None):
+def nb_export(nbname:str,        # Filename of notebook 
+              lib_path:str=None, # Path to destination library.  If not in a nbdev project, defaults to current directory.
+              procs=None,        # Processors to use
+              name:str=None,     # Name of python script {name}.py to create.
+              mod_maker=ModuleMaker,
+              debug:bool=False,  # Debug mode
+             ):
     "Create module(s) from notebook"
-    if lib_path is None: lib_path = get_config().lib_path
+    if lib_path is None: lib_path = get_config().lib_path if is_nbdev() else '.'
     exp = ExportModuleProc()
     nb = NBProcessor(nbname, [exp]+L(procs), debug=debug)
     nb.process()

nbs/api/04_export.ipynb

@@ -34,6 +34,7 @@
     "from fastcore.script import *\n",
     "from fastcore.basics import *\n",
     "from fastcore.imports import *\n",
+    "from fastcore.meta import *\n",
     "\n",
     "from collections import defaultdict"
    ]
@@ -210,7 +211,7 @@
     "def optional_procs():\n",
     "    \"An explicit list of processors that could be used by `nb_export`\"\n",
     "    return L([p for p in nbdev.export.__all__\n",
-    "              if p not in [\"nb_export\", \"ExportModuleProc\", \"optional_procs\"]])"
+    "              if p not in [\"nb_export\", \"nb_export_cli\", \"ExportModuleProc\", \"optional_procs\"]])"
    ]
   },
   {
@@ -237,9 +238,15 @@
    "outputs": [],
    "source": [
     "#|export\n",
-    "def nb_export(nbname, lib_path=None, procs=None, debug=False, mod_maker=ModuleMaker, name=None):\n",
+    "def nb_export(nbname:str,        # Filename of notebook \n",
+    "              lib_path:str=None, # Path to destination library.  If not in a nbdev project, defaults to current directory.\n",
+    "              procs=None,        # Processors to use\n",
+    "              name:str=None,     # Name of python script {name}.py to create.\n",
+    "              mod_maker=ModuleMaker,\n",
+    "              debug:bool=False,  # Debug mode\n",
+    "             ):\n",
     "    \"Create module(s) from notebook\"\n",
-    "    if lib_path is None: lib_path = get_config().lib_path\n",
+    "    if lib_path is None: lib_path = get_config().lib_path if is_nbdev() else '.'\n",
     "    exp = ExportModuleProc()\n",
     "    nb = NBProcessor(nbname, [exp]+L(procs), debug=debug)\n",
     "    nb.process()\n",
@@ -269,7 +276,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "    #|eval: false\n",
+    "#|eval: false\n",
     "shutil.rmtree('tmp', ignore_errors=True)\n",
     "nb_export('../../tests/00_some.thing.ipynb', 'tmp')\n",
     "\n",

nbs/api/13_cli.ipynb

@@ -38,6 +38,7 @@
     "from nbdev.test import *\n",
     "from nbdev.clean import *\n",
     "from nbdev.quarto import nbdev_readme, refresh_quarto_yml\n",
+    "from nbdev.export import nb_export\n",
     "from nbdev.frontmatter import FrontmatterProc\n",
     "\n",
     "from execnb.nbio import *\n",
@@ -286,6 +287,21 @@
     "    print(f\"License updated from {curr_lic} to {to}\")"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "412b4cd2",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#|export\n",
+    "@call_parse\n",
+    "@delegates(nb_export, but=['procs', 'mod_maker'])\n",
+    "def nb_export_cli(nbname, lib_path, name, debug:Param(\"debug flag\", store_true), **kwargs): \n",
+    "    \"Export a single nbdev notebook to a python script.\"\n",
+    "    return nb_export(nbname=nbname, lib_path=lib_path, name=name, debug=debug, **kwargs)"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -332,34 +348,37 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "\u001b[1m\u001b[94mnbdev_bump_version\u001b[0m              Increment version in settings.ini by one\n",
-      "\u001b[1m\u001b[94mnbdev_changelog\u001b[0m                 Create a CHANGELOG.md file from closed and labeled GitHub issues\n",
-      "\u001b[1m\u001b[94mnbdev_clean\u001b[0m                     Clean all notebooks in `fname` to avoid merge conflicts\n",
-      "\u001b[1m\u001b[94mnbdev_conda\u001b[0m                     Create a `meta.yaml` file ready to be built into a package, and optionally build and upload it\n",
-      "\u001b[1m\u001b[94mnbdev_create_config\u001b[0m             Create a config file.\n",
-      "\u001b[1m\u001b[94mnbdev_docs\u001b[0m                      Create Quarto docs and README.md\n",
-      "\u001b[1m\u001b[94mnbdev_export\u001b[0m                    Export notebooks in `path` to Python modules\n",
-      "\u001b[1m\u001b[94mnbdev_filter\u001b[0m                    A notebook filter for Quarto\n",
-      "\u001b[1m\u001b[94mnbdev_fix\u001b[0m                       Create working notebook from conflicted notebook `nbname`\n",
-      "\u001b[1m\u001b[94mnbdev_help\u001b[0m                      Show help for all console scripts\n",
-      "\u001b[1m\u001b[94mnbdev_install\u001b[0m                   Install Quarto and the current library\n",
-      "\u001b[1m\u001b[94mnbdev_install_hooks\u001b[0m             Install Jupyter and git hooks to automatically clean, trust, and fix merge conflicts in notebooks\n",
-      "\u001b[1m\u001b[94mnbdev_install_quarto\u001b[0m            Install latest Quarto on macOS or Linux, prints instructions for Windows\n",
-      "\u001b[1m\u001b[94mnbdev_merge\u001b[0m                     Git merge driver for notebooks\n",
-      "\u001b[1m\u001b[94mnbdev_migrate\u001b[0m                   Convert all markdown and notebook files in `path` from v1 to v2\n",
-      "\u001b[1m\u001b[94mnbdev_new\u001b[0m                       Create an nbdev project.\n",
-      "\u001b[1m\u001b[94mnbdev_prepare\u001b[0m                   Export, test, and clean notebooks, and render README if needed\n",
-      "\u001b[1m\u001b[94mnbdev_preview\u001b[0m                   Preview docs locally\n",
-      "\u001b[1m\u001b[94mnbdev_proc_nbs\u001b[0m                  Process notebooks in `path` for docs rendering\n",
-      "\u001b[1m\u001b[94mnbdev_pypi\u001b[0m                      Create and upload Python package to PyPI\n",
-      "\u001b[1m\u001b[94mnbdev_readme\u001b[0m                    None\n",
-      "\u001b[1m\u001b[94mnbdev_release_both\u001b[0m              Release both conda and PyPI packages\n",
-      "\u001b[1m\u001b[94mnbdev_release_gh\u001b[0m                Calls `nbdev_changelog`, lets you edit the result, then pushes to git and calls `nbdev_release_git`\n",
-      "\u001b[1m\u001b[94mnbdev_release_git\u001b[0m               Tag and create a release in GitHub for the current version\n",
-      "\u001b[1m\u001b[94mnbdev_sidebar\u001b[0m                   Create sidebar.yml\n",
-      "\u001b[1m\u001b[94mnbdev_test\u001b[0m                      Test in parallel notebooks matching `path`, passing along `flags`\n",
-      "\u001b[1m\u001b[94mnbdev_trust\u001b[0m                     Trust notebooks matching `fname`\n",
-      "\u001b[1m\u001b[94mnbdev_update\u001b[0m                    Propagate change in modules matching `fname` to notebooks that created them\n"
+      "\u001b[1m\u001b[94mnb_export\u001b[22m\u001b[39m                 Export a single nbdev notebook to a python script.\n",
+      "\u001b[1m\u001b[94mnbdev_bump_version\u001b[22m\u001b[39m        Increment version in settings.ini by one\n",
+      "\u001b[1m\u001b[94mnbdev_changelog\u001b[22m\u001b[39m           Create a CHANGELOG.md file from closed and labeled GitHub issues\n",
+      "\u001b[1m\u001b[94mnbdev_clean\u001b[22m\u001b[39m               Clean all notebooks in `fname` to avoid merge conflicts\n",
+      "\u001b[1m\u001b[94mnbdev_conda\u001b[22m\u001b[39m               Create a `meta.yaml` file ready to be built into a package, and optionally build and upload it\n",
+      "\u001b[1m\u001b[94mnbdev_create_config\u001b[22m\u001b[39m       Create a config file.\n",
+      "\u001b[1m\u001b[94mnbdev_docs\u001b[22m\u001b[39m                Create Quarto docs and README.md\n",
+      "\u001b[1m\u001b[94mnbdev_export\u001b[22m\u001b[39m              Export notebooks in `path` to Python modules\n",
+      "\u001b[1m\u001b[94mnbdev_filter\u001b[22m\u001b[39m              A notebook filter for Quarto\n",
+      "\u001b[1m\u001b[94mnbdev_fix\u001b[22m\u001b[39m                 Create working notebook from conflicted notebook `nbname`\n",
+      "\u001b[1m\u001b[94mnbdev_help\u001b[22m\u001b[39m                Show help for all console scripts\n",
+      "\u001b[1m\u001b[94mnbdev_install\u001b[22m\u001b[39m             Install Quarto and the current library\n",
+      "\u001b[1m\u001b[94mnbdev_install_hooks\u001b[22m\u001b[39m       Install Jupyter and git hooks to automatically clean, trust, and fix merge conflicts in notebooks\n",
+      "\u001b[1m\u001b[94mnbdev_install_quarto\u001b[22m\u001b[39m      Install latest Quarto on macOS or Linux, prints instructions for Windows\n",
+      "\u001b[1m\u001b[94mnbdev_merge\u001b[22m\u001b[39m               Git merge driver for notebooks\n",
+      "\u001b[1m\u001b[94mnbdev_migrate\u001b[22m\u001b[39m             Convert all markdown and notebook files in `path` from v1 to v2\n",
+      "\u001b[1m\u001b[94mnbdev_new\u001b[22m\u001b[39m                 Create an nbdev project.\n",
+      "\u001b[1m\u001b[94mnbdev_prepare\u001b[22m\u001b[39m             Export, test, and clean notebooks, and render README if needed\n",
+      "\u001b[1m\u001b[94mnbdev_preview\u001b[22m\u001b[39m             Preview docs locally\n",
+      "\u001b[1m\u001b[94mnbdev_proc_nbs\u001b[22m\u001b[39m            Process notebooks in `path` for docs rendering\n",
+      "\u001b[1m\u001b[94mnbdev_pypi\u001b[22m\u001b[39m                Create and upload Python package to PyPI\n",
+      "\u001b[1m\u001b[94mnbdev_readme\u001b[22m\u001b[39m              Create README.md from readme_nb (index.ipynb by default)\n",
+      "\u001b[1m\u001b[94mnbdev_release_both\u001b[22m\u001b[39m        Release both conda and PyPI packages\n",
+      "\u001b[1m\u001b[94mnbdev_release_gh\u001b[22m\u001b[39m          Calls `nbdev_changelog`, lets you edit the result, then pushes to git and calls `nbdev_release_git`\n",
+      "\u001b[1m\u001b[94mnbdev_release_git\u001b[22m\u001b[39m         Tag and create a release in GitHub for the current version\n",
+      "\u001b[1m\u001b[94mnbdev_requirements\u001b[22m\u001b[39m        Writes a `requirements.txt` file to `directory` based on settings.ini.\n",
+      "\u001b[1m\u001b[94mnbdev_sidebar\u001b[22m\u001b[39m             Create sidebar.yml\n",
+      "\u001b[1m\u001b[94mnbdev_test\u001b[22m\u001b[39m                Test in parallel notebooks matching `path`, passing along `flags`\n",
+      "\u001b[1m\u001b[94mnbdev_trust\u001b[22m\u001b[39m               Trust notebooks matching `fname`\n",
+      "\u001b[1m\u001b[94mnbdev_update\u001b[22m\u001b[39m              Propagate change in modules matching `fname` to notebooks that created them\n",
+      "\u001b[1m\u001b[94mnbdev_update_license\u001b[22m\u001b[39m      Allows you to update the license of your project.\n"
      ]
     }
    ],

settings.ini

@@ -50,6 +50,7 @@ console_scripts = nbdev_create_config=nbdev.config:nbdev_create_config
 	nbdev_requirements=nbdev.release:write_requirements
 	nbdev_proc_nbs=nbdev.quarto:nbdev_proc_nbs
 	nbdev_help=nbdev.cli:chelp
+    nb_export=nbdev.cli:nb_export_cli
 tst_flags = notest
 nbs_path = nbs
 doc_path = _docs