From 2af028acaedca10aec4a30933d372e010a76c73a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patrick=20L=C3=BChne?= <patrick@luehne.de>
Date: Wed, 26 Sep 2018 20:33:53 +0200
Subject: [PATCH] Add function to check if files are present

---
 .../benchmark_repository/examples/test.rs     |  9 +++++-
 benchmark-new/benchmark_repository/src/lib.rs | 30 +++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/benchmark-new/benchmark_repository/examples/test.rs b/benchmark-new/benchmark_repository/examples/test.rs
index 52922f955..241443222 100644
--- a/benchmark-new/benchmark_repository/examples/test.rs
+++ b/benchmark-new/benchmark_repository/examples/test.rs
@@ -40,7 +40,14 @@ fn main()
 				let instance_domain = instance["domain"].as_str().unwrap();
 				let instance_number = instance["instance"].as_i64().unwrap();
 
-				println!("[{}, {}, {}/{}/{}]", configuration_id, instance_set_id, instance_ipc, instance_domain, instance_number);
+				let file_name = format!("{}/{}/{}", instance_ipc, instance_domain, instance_number);
+
+				if (benchmark_repository.file_exists(Path::new(&file_name), "test-results"))
+				{
+					continue;
+				}
+
+				println!("to do: [{}, {}, {}/{}/{}]", configuration_id, instance_set_id, instance_ipc, instance_domain, instance_number);
 			}
 		}
 	}
diff --git a/benchmark-new/benchmark_repository/src/lib.rs b/benchmark-new/benchmark_repository/src/lib.rs
index ca584a85b..f5efc6a18 100644
--- a/benchmark-new/benchmark_repository/src/lib.rs
+++ b/benchmark-new/benchmark_repository/src/lib.rs
@@ -283,6 +283,36 @@ impl BenchmarkRepository
 		remote.push(&[&push_refspec], Some(&mut push_options)).expect("couldn’t push");
 	}
 
+	pub fn file_exists(&self, file_path: &Path, branch_name: &str) -> bool
+	{
+		let tip_reference_name = format!("refs/remotes/origin/{}", branch_name);
+		let tip_reference = match self.repository.find_reference(&tip_reference_name)
+		{
+			Ok(value) => value,
+			Err(error) => panic!("Could not find reference “{}”: {}", tip_reference_name, error),
+		};
+
+		let tree = match tip_reference.peel_to_tree()
+		{
+			Ok(value) => value,
+			Err(error) => panic!("Could not peel reference to tree: {}", error),
+		};
+
+		let object_id = match tree.get_path(file_path)
+		{
+			Ok(tree_entry) => tree_entry.id(),
+			Err(error) => return false,
+		};
+
+		let blob = match self.repository.find_blob(object_id)
+		{
+			Ok(blob) => blob,
+			Err(error) => return false,
+		};
+
+		true
+	}
+
 	pub fn read_file(&self, file_path: &Path, branch_name: &str) -> Option<String>
 	{
 		let tip_reference_name = format!("refs/remotes/origin/{}", branch_name);