Add helpful page for game support

app/blueprints/packages/__init__.py

@@ -17,7 +17,7 @@
 from flask import Blueprint
 from flask_babel import gettext
 
-from app.models import User, Package, Permission
+from app.models import User, Package, Permission, PackageType
 
 bp = Blueprint("packages", __name__)
 
@@ -26,7 +26,7 @@ def get_package_tabs(user: User, package: Package):
 	if package is None or not package.checkPerm(user, Permission.EDIT_PACKAGE):
 		return []
 
-	return [
+	retval = [
 		{
 			"id": "edit",
 			"title": gettext("Edit Details"),
@@ -64,5 +64,14 @@ def get_package_tabs(user: User, package: Package):
 		}
 	]
 
+	if package.type == PackageType.MOD:
+		retval.insert(1, {
+			"id": "game_support",
+			"title": gettext("Supported Games"),
+			"url": package.getURL("packages.game_support")
+		})
+
+	return retval
+
 
 from . import packages, screenshots, releases, reviews, game_hub

app/blueprints/packages/packages.py

@@ -624,3 +624,18 @@ def similar(package):
 
 	return render_template("packages/similar.html", package=package,
 			packages_modnames=packages_modnames, similar_topics=similar_topics)
+
+
+@bp.route("/packages/<author>/<name>/support/")
+@login_required
+@is_package_page
+def game_support(package):
+	if package.type != PackageType.MOD:
+		abort(404)
+
+	if not (package.checkPerm(current_user, Permission.EDIT_PACKAGE) or
+			package.checkPerm(current_user, Permission.APPROVE_NEW)):
+		abort(403)
+
+	return render_template("packages/game_support.html", package=package,
+			tabs=get_package_tabs(current_user, package), current_tab="game_support")

app/flatpages/help.md

@@ -19,6 +19,7 @@ toc: False
 * [Git Update Detection](update_config)
 * [Creating Releases using Webhooks](release_webhooks)
 * [Package Configuration and Releases Guide](package_config)
+* [Supported Games](game_support)
 
 ## Help for Specific User Ranks
 

app/flatpages/help/game_support.md

@@ -0,0 +1,37 @@
+title: Supported Games
+
+<p class="alert alert-warning">
+    This feature is experimental
+</p>
+
+## Why?
+
+The supported/compatible games feature allows mods to specify the games that they work with, which improves
+user experience.
+
+
+## Support sources
+
+### mod.conf
+
+You can use `supported_games` to specify games that your mod is compatible with.
+
+You can use `unsupported_games` to specify games that your mod doesn't work with, which is useful for overriding
+ContentDB's automatic detection.
+
+Both of these are comma-separated lists of game technical ids. Any `_game` suffixes are ignored, just like in Minetest.
+
+    supported_games = minetest_game, repixture
+    unsupported_games = lordofthetest, nodecore, whynot
+
+### Dependencies
+
+ContentDB will analyse hard dependencies and work out which games a mod supports.
+
+This uses a recursive algorithm that works out whether a dependency can be installed independently, or if it requires
+a certain game.
+
+
+## Combining all the sources
+
+mod.conf will override anything ContentDB detects.

app/models/packages.py

@@ -506,8 +506,12 @@ class Package(db.Model):
 	def getSortedOptionalDependencies(self):
 		return self.getSortedDependencies(False)
 
-	def getSortedSupportedGames(self):
+	def getSortedSupportedGames(self, include_unsupported=False):
-		supported = self.supported_games.filter_by(supports=True).all()
+		query = self.supported_games
+		if not include_unsupported:
+			query = query.filter_by(supports=True)
+
+		supported = query.all()
 		supported.sort(key=lambda x: -(x.game.score + 100000*x.confidence))
 		return supported
 

app/templates/packages/game_support.html

@@ -0,0 +1,64 @@
+{% extends "packages/package_base.html" %}
+
+{% block title %}
+{{ _("Supported Games") }}
+{% endblock %}
+
+{% block content %}
+	<h2 class="mt-0">{{ self.title() }}</h2>
+
+	<p class="alert alert-info">
+		<a class="float-right btn btn-sm" href="{{ url_for('flatpage', path='help/game_support') }}">
+			{{ _("Read more") }}
+		</a>
+		{{ _("Support is determined based on dependencies and fields in mod.conf") }}
+	</p>
+
+	<div class="list-group">
+		<div class="list-group-item">
+			<div class="row">
+				<span class="col-5">
+					{{ _("Package") }}
+				</span>
+				<span class="col-5">
+					{{ _("Source") }}
+				</span>
+				<span class="col-2 text-right">
+					{{ _("Supported?") }}
+				</span>
+			</div>
+		</div>
+
+		{% for support in package.getSortedSupportedGames(True) %}
+			<a class="list-group-item list-group-item-action"
+					href="{{ support.game.getURL('packages.view') }}">
+				<div class="row">
+					<span class="col-5">
+						{{ _("%(title)s by %(display_name)s",
+								title=support.game.title, display_name=support.game.author.display_name) }}
+					</span>
+					<span class="col-5">
+						{% if support.confidence == 1 %}
+							{{ _("Detected from dependencies") }}
+						{% elif support.confidence == 10 %}
+							{{ _("mod.conf") }}
+						{% else %}
+							{{ support.confidence }}
+						{% endif %}
+					</span>
+					<span class="col-2 text-right">
+						{% if support.supports %}
+							<span class="badge badge-success">Yes</span>
+						{% else %}
+							<span class="badge badge-danger">No</span>
+						{% endif %}
+					</span>
+				</div>
+			</a>
+		{% else %}
+			<div class="list-group-item text-muted">
+				{{ _("No specific game is required") }}
+			</div>
+		{% endfor %}
+	</div>
+{% endblock %}

app/templates/packages/view.html

@@ -433,7 +433,14 @@
 				{% endif %}
 
 				{% if package.type == package.type.MOD %}
-					<h3>{{ _("Compatible Games") }}</h3>
+					<h3>
+						{% if package.checkPerm(current_user, "EDIT_PACKAGE") %}
+							<a href="{{ package.getURL('packages.game_support') }}" class="btn btn-secondary btn-sm float-right">
+								<i class="fas fa-pen"></i>
+							</a>
+						{% endif %}
+						{{ _("Compatible Games") }}
+					</h3>
 					<div style="max-height: 300px; overflow: hidden auto;">
 						{% for support in package.getSortedSupportedGames() %}
 							<a class="badge badge-secondary"