From 8f9b3228978b73f9963c495edeee1fa10f5865e6 Mon Sep 17 00:00:00 2001
From: Tilak Patidar <tilakpatidar@gmail.com>
Date: Sun, 30 Dec 2018 21:05:24 +0530
Subject: [PATCH] pr: fix file not found in pr and mpr

---
 src/pr/pr.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/pr/pr.rs b/src/pr/pr.rs
index 799507018..b799f8938 100644
--- a/src/pr/pr.rs
+++ b/src/pr/pr.rs
@@ -735,7 +735,7 @@ fn pr(path: &String, options: &OutputOptions) -> Result<i32, PrError> {
         usize,
         Map<TakeWhile<SkipWhile<Map<Enumerate<Lines<BufReader<Box<Read>>>>, _>, _>, _>, _>,
         _,
-    > = BufReader::with_capacity(READ_BUFFER_SIZE, open(path).unwrap())
+    > = BufReader::with_capacity(READ_BUFFER_SIZE, open(path)?)
         .lines()
         .enumerate()
         .map(|i: (usize, Result<String, IOError>)| FileLine {
@@ -790,6 +790,11 @@ fn mpr(paths: &Vec<String>, options: &OutputOptions) -> Result<i32, PrError> {
     let last_page: Option<&usize> = options.end_page.as_ref();
     let start_line_index_of_start_page = (start_page - 1) * lines_needed_per_page;
 
+    // Check if files exists
+    for path in paths {
+        open(path)?;
+    }
+
     let file_line_groups: GroupBy<
         usize,
         KMergeBy<