From 43730ec61dc280d0915a9db0fdbd38bb1cdc8f9a Mon Sep 17 00:00:00 2001
From: Glenn Smith <glenn@vector35.com>
Date: Wed, 13 Apr 2022 22:40:28 -0400
Subject: Add Database::TrimSnapshot api

---
 binaryninjaapi.h   | 1 +
 binaryninjacore.h  | 1 +
 database.cpp       | 9 +++++++++
 python/database.py | 4 ++++
 4 files changed, 15 insertions(+)

diff --git a/binaryninjaapi.h b/binaryninjaapi.h
index 04cdfd12..95a3a677 100644
--- a/binaryninjaapi.h
+++ b/binaryninjaapi.h
@@ -962,6 +962,7 @@ namespace BinaryNinja {
 		Ref<Snapshot> GetCurrentSnapshot();
 		int64_t WriteSnapshotData(std::vector<int64_t> parents, Ref<BinaryView> file, const std::string& name,
 		    const Ref<KeyValueStore>& data, bool autoSave, const std::function<bool(size_t, size_t)>& progress);
+		void TrimSnapshot(int64_t id);
 		void RemoveSnapshot(int64_t id);
 
 		std::vector<std::string> GetGlobalKeys() const;
diff --git a/binaryninjacore.h b/binaryninjacore.h
index 05eb44fa..32c88fd2 100644
--- a/binaryninjacore.h
+++ b/binaryninjacore.h
@@ -2978,6 +2978,7 @@ extern "C"
 	BINARYNINJACOREAPI int64_t BNWriteDatabaseSnapshotData(BNDatabase* database, int64_t* parents, size_t parentCount,
 	    BNBinaryView* file, const char* name, BNKeyValueStore* data, bool autoSave, void* ctxt,
 	    bool (*progress)(void*, size_t, size_t));
+	BINARYNINJACOREAPI bool BNTrimDatabaseSnapshot(BNDatabase* database, int64_t id);
 	BINARYNINJACOREAPI bool BNRemoveDatabaseSnapshot(BNDatabase* database, int64_t id);
 	BINARYNINJACOREAPI char** BNGetDatabaseGlobalKeys(BNDatabase* database, size_t* count);
 	BINARYNINJACOREAPI int BNDatabaseHasGlobal(BNDatabase* database, const char* key);
diff --git a/database.cpp b/database.cpp
index 0a846f09..326b57f2 100644
--- a/database.cpp
+++ b/database.cpp
@@ -403,6 +403,15 @@ int64_t Database::WriteSnapshotData(std::vector<int64_t> parents, Ref<BinaryView
 }
 
 
+void Database::TrimSnapshot(int64_t id)
+{
+	if (!BNTrimDatabaseSnapshot(m_object, id))
+	{
+		throw DatabaseException("BNTrimDatabaseSnapshot");
+	}
+}
+
+
 void Database::RemoveSnapshot(int64_t id)
 {
 	if (!BNRemoveDatabaseSnapshot(m_object, id))
diff --git a/python/database.py b/python/database.py
index 84d5979b..f1aefb6a 100644
--- a/python/database.py
+++ b/python/database.py
@@ -279,6 +279,10 @@ class Database:
 	def current_snapshot(self, value: Snapshot):
 		core.BNSetDatabaseCurrentSnapshot(self.handle, value.id)
 
+	def trim_snapshot(self, id: int):
+		"""Trim a snapshot's contents in the database by id, but leave the """
+		core.BNRemoveDatabaseSnapshot(self.handle, id)
+
 	def remove_snapshot(self, id: int):
 		"""Remove a snapshot in the database by id"""
 		core.BNRemoveDatabaseSnapshot(self.handle, id)
-- 
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