Remove warnings from the 2.0 release

Added support for overwriting existing symlinks

ObjectiveCExample/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - SSZipArchive (2.0.0)
+  - SSZipArchive (2.0.1)
 
 DEPENDENCIES:
   - SSZipArchive (from `..`)
@@ -9,7 +9,7 @@ EXTERNAL SOURCES:
     :path: ".."
 
 SPEC CHECKSUMS:
-  SSZipArchive: 8153333145bf99acaf1918d257fdcef68a9269e1
+  SSZipArchive: 6678776f378494909195d3f1b3f00d91e76084f9
 
 PODFILE CHECKSUM: 7f4058a9cbc69b4e63808729577a8bb2098bc527
 

README.md

@@ -14,7 +14,7 @@ ZipArchive is a simple utility class for zipping and unzipping files on iOS and
 
 ## Installation and Setup
 
-*The main release branch is configured to support Objective C and Swift 3. There is a 'swift23' branch which is the latest branch but marked to compile for Swift 2.3.* 
+*The main release branch is configured to support Objective C and Swift 3. There is a 'swift23' branch which is a tied to a older 1.x release and will not be upgraded. Xcode 8.3+ removes support for Swift 2.3* 
 
 ### CocoaPods
 

SSZipArchive.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = 'SSZipArchive'
-  s.version      = '2.0.0'
+  s.version      = '2.0.1'
   s.summary      = 'Utility class for zipping and unzipping files on iOS, tvOS, watchOS, and Mac.'
   s.description  = 'SSZipArchive is a simple utility class for zipping and unzipping files on iOS, tvOS, watchOS, and Mac.'
   s.homepage     = 'https://github.com/ZipArchive/ZipArchive'

SSZipArchive/SSZipArchive.m

@@ -465,13 +465,34 @@ NSString *const SSZipArchiveErrorDomain = @"SSZipArchiveErrorDomain";
                     [destinationPath appendString:@((const char*)buffer)];
                 }
                 
+                // Check if the symlink exists and delete it if we're overwriting
+                if (overwrite)
+                {
+                    if ([fileManager fileExistsAtPath:fullPath])
+                    {
+                        NSError *error = nil;
+                        BOOL success = [fileManager removeItemAtPath:fullPath error:&error];
+                        if (!success)
+                        {
+                            NSString *message = [NSString stringWithFormat:@"Failed to delete existing symbolic link at \"%@\"", error.localizedDescription];
+                            NSLog(@"[SSZipArchive] %@", message);
+                            success = NO;
+                            unzippingError = [NSError errorWithDomain:SSZipArchiveErrorDomain code:error.code userInfo:@{NSLocalizedDescriptionKey: message}];
+                        }
+                    }
+                }
+                
                 // Create the symbolic link (making sure it stays relative if it was relative before)
                 int symlinkError = symlink([destinationPath cStringUsingEncoding:NSUTF8StringEncoding],
                                            [fullPath cStringUsingEncoding:NSUTF8StringEncoding]);
                 
                 if (symlinkError != 0)
                 {
-                    NSLog(@"Failed to create symbolic link at \"%@\" to \"%@\". symlink() error code: %d", fullPath, destinationPath, errno);
+                    // Bubble the error up to the completion handler
+                    NSString *message = [NSString stringWithFormat:@"Failed to create symbolic link at \"%@\" to \"%@\" - symlink() error code: %d", fullPath, destinationPath, errno];
+                    NSLog(@"[SSZipArchive] %@", message);
+                    success = NO;
+                    unzippingError = [NSError errorWithDomain:NSPOSIXErrorDomain code:symlinkError userInfo:@{NSLocalizedDescriptionKey: message}];
                 }
             }
             
@@ -729,7 +750,9 @@ NSString *const SSZipArchiveErrorDomain = @"SSZipArchiveErrorDomain";
             uLong permissionsLong = @(permissionsOctal).unsignedLongValue;
             
             // Store this into the external file attributes once it has been shifted 16 places left to form part of the second from last byte
-            zipInfo.external_fa = permissionsLong << 16L;
+            
+            //Casted back to an unsigned int to match type of external_fa in minizip
+            zipInfo.external_fa = (unsigned int)(permissionsLong << 16L);
         }
     }
     
@@ -791,7 +814,9 @@ NSString *const SSZipArchiveErrorDomain = @"SSZipArchiveErrorDomain";
             uLong permissionsLong = @(permissionsOctal).unsignedLongValue;
             
             // Store this into the external file attributes once it has been shifted 16 places left to form part of the second from last byte
-            zipInfo.external_fa = permissionsLong << 16L;
+            
+            //Casted back to an unsigned int to match type of external_fa in minizip
+            zipInfo.external_fa = (unsigned int)(permissionsLong << 16L);
         }
     }
     

SwiftExample/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - SSZipArchive (2.0.0)
+  - SSZipArchive (2.0.1)
 
 DEPENDENCIES:
   - SSZipArchive (from `..`)
@@ -9,7 +9,7 @@ EXTERNAL SOURCES:
     :path: ".."
 
 SPEC CHECKSUMS:
-  SSZipArchive: 8153333145bf99acaf1918d257fdcef68a9269e1
+  SSZipArchive: 6678776f378494909195d3f1b3f00d91e76084f9
 
 PODFILE CHECKSUM: 0dc500eb72745751ccba7677de4da5534fcef36d