feat: if no params show help (#649)

* feat: if no params show help

* Remove comments

* feat: update checking params

* updated main script and changelog

* version bump

---------

Co-authored-by: yuming <[email protected]>

Author: kravetsmic

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.7.2-dev4
+## 0.7.2-dev5
 
 ### Enhancements
 
@@ -16,6 +16,7 @@
 * File detection now detects code files as plain text
 * Adds `tabulate` explicitly to dependencies
 * Fixes an issue in `metadata.page_number` of pptx files
+* Adds showing help if no parameters passed
 
 ## 0.7.1
 

unstructured/__version__.py

@@ -1 +1 @@
-__version__ = "0.7.2-dev4"  # pragma: no cover
+__version__ = "0.7.2-dev5"  # pragma: no cover

unstructured/ingest/main.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+import collections
 import hashlib
 import logging
 import multiprocessing as mp
@@ -96,6 +97,7 @@ def run(self):
 
 
 @click.command()
+@click.pass_context
 @click.option(
     "--max-docs",
     default=None,
@@ -392,6 +394,7 @@ def run(self):
 )
 @click.option("-v", "--verbose", is_flag=True, default=False)
 def main(
+    ctx,
     remote_url,
     s3_anonymous,
     azure_account_name,
@@ -445,6 +448,10 @@ def main(
     local_file_glob,
     download_only,
 ):
+    default_values = collections.Counter([option.default for option in ctx.command.params])
+    passed_values = collections.Counter(ctx.params.values())
+    if default_values == passed_values:
+        return click.echo(ctx.get_help())
     if flatten_metadata and "metadata" not in fields_include:
         logger.warning(
             "`--flatten-metadata` is specified, but there is no metadata to flatten, "