From 018c0d5082955a7484b55083bc8c986e3492879c Mon Sep 17 00:00:00 2001
From: Ted John <ted@brambles.org>
Date: Tue, 13 Dec 2016 23:00:37 +0000
Subject: [PATCH] Fix #4874: OpenRCT fails to launch if no .config folder
 exists...

Change platform_ensure_directory_exists to create the directory chain given, e.g. mkdir -p.
Based on https://gist.github.com/JonathonReinhart/8c0d90191c38af2dcadb102c4e202950.
---
 src/platform/posix.c | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/src/platform/posix.c b/src/platform/posix.c
index 1e0e2912e8..8a2566daba 100644
--- a/src/platform/posix.c
+++ b/src/platform/posix.c
@@ -174,14 +174,36 @@ static mode_t getumask()
 
 bool platform_ensure_directory_exists(const utf8 *path)
 {
+	mode_t mask = getumask();
 	char buffer[MAX_PATH];
 	platform_utf8_to_multibyte(path, buffer, MAX_PATH);
-	mode_t mask = getumask();
-	log_verbose("%s", buffer);
-	const int result = mkdir(buffer, mask);
-	if (result == 0 || (result == -1 && errno == EEXIST))
-		return true;
-	return false;
+
+	log_verbose("Create directory: %s", buffer);
+	for (char *p = buffer + 1; *p != '\0'; p++) {
+		if (*p == '/') {
+			// Temporarily truncate
+			*p = '\0';
+
+			log_verbose("mkdir(%s)", buffer);
+			if (mkdir(buffer, mask) != 0) {
+				if (errno != EEXIST) {
+					return false;
+				}
+			}
+
+			// Restore truncation
+			*p = '/';
+		}
+	}
+
+	log_verbose("mkdir(%s)", buffer);
+	if (mkdir(buffer, mask) != 0) {
+		if (errno != EEXIST) {
+			return false;
+		}
+	}
+
+	return true;
 }
 
 bool platform_directory_delete(const utf8 *path)