add a check-metadata command

content/pages/a_page.md

@@ -2,6 +2,7 @@
 title Page1
 slug page1
 template_engine jinja2
+description 
 ---
 {
 

jssg/management/commands/check-metadata.py

@@ -0,0 +1,41 @@
+from django.core.management.base import BaseCommand
+from django.conf import settings
+from jssg.models import Page
+from pathlib import Path
+
+class Command(BaseCommand):
+    help = "Check if metadata in JFME_CONTENT_REQUIRED_METADATA setting are specified in pages."
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "--verbose",
+            action = "store_true",
+            help="Show missing or empty metadata in each page."
+        )
+        parser.add_argument(
+            "content path",
+            nargs = "*",
+            type=str,
+            default=settings.JFME_PAGES_DIRS,
+            help="The paths where search the pages. Set to JFME_PAGES_DIRS by default."
+        )
+
+    def handle(self, *args, **options) :
+        for page in Page.load_glob(path = list(map(lambda p : Path(p).absolute(), options["content path"])), all = True) :
+            missing_metadata = []
+            empty_metadata = []
+            for required_metadata in settings.JFME_CONTENT_REQUIRED_METADATA :
+                if required_metadata not in page.metadata :
+                    missing_metadata.append(required_metadata)
+                elif page.metadata[required_metadata] == "" :
+                    empty_metadata.append(required_metadata)
+
+            self.stdout.write("{:3.0f}% : {}".format(
+                (len(settings.JFME_CONTENT_REQUIRED_METADATA) - len(missing_metadata) - len(empty_metadata)) * 100 / len(settings.JFME_CONTENT_REQUIRED_METADATA),
+                page.path.relative_to(page.content_page_dir))
+            )
+            if options["verbosity"]>1 or options["verbose"] :
+                for missing in missing_metadata :
+                    self.stdout.write("\t- '{}' is missing".format(missing))
+                for empty in empty_metadata :
+                    self.stdout.write("\t- '{}' is empty".format(empty))

jssg/settings.py

@@ -52,7 +52,7 @@
 JFME_POSTS_DIRS = [path / "posts" for path in JFME_CONTENT_DIRS]
 JFME_TEMPLATES_DIRS = [path / "templates" for path in JFME_CONTENT_DIRS]
 JFME_STATIC_DIRS = [path / "static" for path in JFME_CONTENT_DIRS]
-
+JFME_CONTENT_REQUIRED_METADATA = ["title", "slug", "lang", "description"]
 
 
 # Application definition