From e08143de4b38d83e7928180fcb96b54c29555bd8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E1=84=87=E1=85=A1=E1=86=A8=E1=84=92=E1=85=A7=E1=86=AB?=
 =?UTF-8?q?=E1=84=8B=E1=85=AE?= <phu54321@naver.com>
Date: Wed, 3 Aug 2022 18:41:58 +0900
Subject: [PATCH] Fix macOS .dylib symlink issue

Uses somewhat herustic method to auto-apply symlink to stale files.
Also, some .dylib are not labeled as executable on the zip file, so adding executable bits manually.

Fixes #65
---
 src/archives/zipextractor.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/archives/zipextractor.cpp b/src/archives/zipextractor.cpp
index 3c125c2..4b10c4f 100644
--- a/src/archives/zipextractor.cpp
+++ b/src/archives/zipextractor.cpp
@@ -16,6 +16,27 @@ static inline QFile::Permissions getPermissionsFromUnix(quint16 type) {
     return static_cast<QFile::Permissions>(((type & 0700) << 6) | ((type & 0700) << 2) | ((type & 0070) << 1) | (type & 0007));
 }
 
+static void handleSymlinkDylib(const QString& filename) {
+    if (filename.endsWith(".dylib")) {
+        QFile file(filename);
+        file.open(QFile::ReadOnly);
+        if (file.size() < 100) {
+            auto targetFilename = static_cast<QString>(file.readLine());
+            file.close();
+            file.remove();
+            QFile::link(targetFilename, filename);
+        } else {
+            file.close();
+            file.setPermissions(
+                file.permissions() |
+                QFileDevice::ExeOwner |
+                QFileDevice::ExeGroup |
+                QFileDevice::ExeOther
+            );
+        }
+    }
+}
+
 bool extractZip(QIODevice *in, QDir extractLoc) {
     in->open(QIODevice::ReadOnly);
     QDataStream stream(in);
@@ -78,6 +99,8 @@ bool extractZip(QIODevice *in, QDir extractLoc) {
                 }
 
                 file.close();
+
+                handleSymlinkDylib(extractLoc.filePath(name));
                 if (rcrc != crc) return false; // CRC-32 Mismatch
 
             } else { // Standard DEFLATE
@@ -118,6 +141,9 @@ bool extractZip(QIODevice *in, QDir extractLoc) {
                 }
 
                 file.close();
+
+                handleSymlinkDylib(extractLoc.filePath(name));
+
                 ret ^= 1;
                 ret |= inflateEnd(&strm);
                 if (ret != Z_OK) return false;