From fbb225ec018b63938c29e1d283a1bf1cd830d073 Mon Sep 17 00:00:00 2001
From: Fabien Castan <fabcastan@gmail.com>
Date: Thu, 11 Mar 2021 19:41:56 +0100
Subject: [PATCH] [matching/sfm] IO: do not call "canonical" on non-existing
 files

---
 src/aliceVision/matching/io.cpp            | 7 ++++++-
 src/aliceVision/sfm/pipeline/regionsIO.cpp | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/aliceVision/matching/io.cpp b/src/aliceVision/matching/io.cpp
index c22a74d86a..ebcee0a445 100644
--- a/src/aliceVision/matching/io.cpp
+++ b/src/aliceVision/matching/io.cpp
@@ -235,7 +235,12 @@ bool Load(PairwiseMatches& matches,
   // build up a set with normalized paths to remove duplicates
   std::set<std::string> foldersSet;
   for(const auto& folder : folders)
-    foldersSet.insert(fs::canonical(folder).string());
+  {
+    if(fs::exists(folder))
+    {
+      foldersSet.insert(fs::canonical(folder).string());
+    }
+  }
 
   for(const auto& folder : foldersSet)
   {
diff --git a/src/aliceVision/sfm/pipeline/regionsIO.cpp b/src/aliceVision/sfm/pipeline/regionsIO.cpp
index e53f3b4aa8..caafaa197c 100644
--- a/src/aliceVision/sfm/pipeline/regionsIO.cpp
+++ b/src/aliceVision/sfm/pipeline/regionsIO.cpp
@@ -87,7 +87,12 @@ std::unique_ptr<feature::Regions> loadFeatures(const std::vector<std::string>& f
   // build up a set with normalized paths to remove duplicates
   std::set<std::string> foldersSet;
   for(const auto& folder : folders)
-    foldersSet.insert(fs::canonical(folder).string());
+  {
+    if(fs::exists(folder))
+    {
+      foldersSet.insert(fs::canonical(folder).string());
+    }
+  }
 
   for(const auto& folder : foldersSet)
   {