From 0467f6a03656e0858e42ccb096cc66d227c825e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Saugat=20Pachhai=20=28=E0=A4=B8=E0=A5=8C=E0=A4=97=E0=A4=BE?=
 =?UTF-8?q?=E0=A4=A4=29?= <suagatchhetri@outlook.com>
Date: Wed, 14 Dec 2022 21:23:07 +0545
Subject: [PATCH] add index._plot_sources

---
 dvc/repo/index.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/dvc/repo/index.py b/dvc/repo/index.py
index 809bc969d..83e36da9b 100644
--- a/dvc/repo/index.py
+++ b/dvc/repo/index.py
@@ -89,6 +89,21 @@ class Index:
         self._collect()
         return self._plots
 
+    @cached_property
+    def _plot_sources(self):
+        from dvc.repo.plots import _collect_pipeline_files
+
+        sources = []
+        for data in _collect_pipeline_files(self.repo, [], {}).values():
+            for plot_id, props in data.get("data", {}).items():
+                if isinstance(props.get("y"), dict):
+                    sources.extend(props["y"])
+                    if isinstance(props.get("x"), dict):
+                        sources.extend(props["x"])
+                else:
+                    sources.append(plot_id)
+        return sources
+
     @cached_property
     def _top_params(self):
         self._collect()