Objective-C

Get the Files Affected by an FTP Sync

Demonstrates the Chilkat Ftp2.GetSyncedFiles method, which reports the relative paths affected by the most recent synchronization. The only argument is a StringTable that receives the paths (uploaded, downloaded, or deleted).

Background: A sync call reports only overall success, but you usually want to know what actually changed — for logging, for triggering follow-up work on just the new files, or to confirm an incremental sync did the minimal transfer. An empty result is meaningful too: it means everything was already up to date. Call it immediately after the sync, before another operation replaces the recorded list.

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Objective-C

#import <CkoFtp2.h>
#import <CkoStringTable.h>
#import <NSString.h>

BOOL success = NO;

//  Demonstrates the Ftp2.GetSyncedFiles method, which reports the relative paths affected by the
//  most recent synchronization operation.  The only argument is a StringTable that receives the
//  paths.

CkoFtp2 *ftp = [[CkoFtp2 alloc] init];

ftp.Hostname = @"ftp.example.com";
ftp.Username = @"myFtpLogin";

//  Normally you would not hard-code the password in source.  You should instead obtain it
//  from an interactive prompt, environment variable, or a secrets vault.
ftp.Password = @"myPassword";

success = [ftp Connect];
if (success == NO) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}

success = [ftp ChangeRemoteDir: @"public_html"];
if (success == NO) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}

//  Perform a sync.
int mode = 6;
success = [ftp SyncLocalTree: @"qa_output/site" mode: [NSNumber numberWithInt: mode]];
if (success == NO) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}

//  Get the list of files that were uploaded, downloaded, or deleted by that sync.
CkoStringTable *synced = [[CkoStringTable alloc] init];
[ftp GetSyncedFiles: synced];

int n = [synced.Count intValue];
NSLog(@"%@%d",@"Affected files: ",n);
int i;
for (i = 0; i <= n - 1; i++) {
    NSString *relPath = [synced StringAt: [NSNumber numberWithInt: i]];
    if (synced.LastMethodSuccess == NO) {
        NSLog(@"%@",synced.LastErrorText);
        return;
    }

    NSLog(@"%@",relPath);
}

success = [ftp Disconnect];
if (success == NO) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}