PureBasic

Sync a Local Tree Up with Preview and Traversal Control

Demonstrates the Chilkat Ftp2.SyncRemoteTree2 method, which uploads a local tree to the current remote directory with extra controls. The arguments are the local root, the upload mode, whether to descend into subdirectories, and whether to run preview-only. In preview mode the results are available via the SyncPreview property.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: The preview flag is what makes this valuable: run it first to see exactly which files would be uploaded — without transferring anything — then run it again for real once the plan looks right. That dry-run step is a strong safeguard before a large or destructive-looking sync. The descend flag lets you limit the operation to the top level, and the mode is the same set of upload rules as SyncRemoteTree.

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IncludeFile "CkFtp2.pb"

Procedure ChilkatExample()

    success.i = 0

    ;  Demonstrates the Ftp2.SyncRemoteTree2 method, which uploads a local tree to the current remote
    ;  directory with extra traversal and preview controls.  The 1st argument is the local root, the
    ;  2nd is the upload mode, the 3rd selects whether to descend into subdirectories, and the 4th
    ;  selects preview-only (no actual transfers).

    ftp.i = CkFtp2::ckCreate()
    If ftp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkFtp2::setCkHostname(ftp, "ftp.example.com")
    CkFtp2::setCkUsername(ftp, "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.
    CkFtp2::setCkPassword(ftp, "myPassword")

    success = CkFtp2::ckConnect(ftp)
    If success = 0
        Debug CkFtp2::ckLastErrorText(ftp)
        CkFtp2::ckDispose(ftp)
        ProcedureReturn
    EndIf

    success = CkFtp2::ckChangeRemoteDir(ftp,"public_html")
    If success = 0
        Debug CkFtp2::ckLastErrorText(ftp)
        CkFtp2::ckDispose(ftp)
        ProcedureReturn
    EndIf

    ;    0 = all selected files
    ;    1 = files missing on the server
    ;    2 = missing, or newer locally
    ;    3 = only files that exist remotely and are newer locally
    ;    4 = missing, or a different size
    ;    5 = missing, different size, or newer locally

    mode.i = 5

    ;  Descend into subdirectories.
    bDescend.i = 1

    ;  Preview only: determine what WOULD be uploaded without transferring anything.  The results are
    ;  available via the SyncPreview property.
    bPreviewOnly.i = 1

    success = CkFtp2::ckSyncRemoteTree2(ftp,"qa_data/site",mode,bDescend,bPreviewOnly)
    If success = 0
        Debug CkFtp2::ckLastErrorText(ftp)
        CkFtp2::ckDispose(ftp)
        ProcedureReturn
    EndIf

    ;  SyncPreview lists the files that would be uploaded.
    Debug CkFtp2::ckSyncPreview(ftp)

    success = CkFtp2::ckDisconnect(ftp)
    If success = 0
        Debug CkFtp2::ckLastErrorText(ftp)
        CkFtp2::ckDispose(ftp)
        ProcedureReturn
    EndIf



    CkFtp2::ckDispose(ftp)


    ProcedureReturn
EndProcedure