Tcl

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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Tcl


load ./chilkat.dll

set success 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).

set ftp [new_CkFtp2]

CkFtp2_put_Hostname $ftp "ftp.example.com"
CkFtp2_put_Username $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_put_Password $ftp "myPassword"

set success [CkFtp2_Connect $ftp]
if {$success == 0} then {
    puts [CkFtp2_lastErrorText $ftp]
    delete_CkFtp2 $ftp
    exit
}

set success [CkFtp2_ChangeRemoteDir $ftp "public_html"]
if {$success == 0} then {
    puts [CkFtp2_lastErrorText $ftp]
    delete_CkFtp2 $ftp
    exit
}

#    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

set mode 5

#  Descend into subdirectories.
set bDescend 1

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

set success [CkFtp2_SyncRemoteTree2 $ftp "qa_data/site" $mode $bDescend $bPreviewOnly]
if {$success == 0} then {
    puts [CkFtp2_lastErrorText $ftp]
    delete_CkFtp2 $ftp
    exit
}

#  SyncPreview lists the files that would be uploaded.
puts [CkFtp2_syncPreview $ftp]

set success [CkFtp2_Disconnect $ftp]
if {$success == 0} then {
    puts [CkFtp2_lastErrorText $ftp]
    delete_CkFtp2 $ftp
    exit
}


delete_CkFtp2 $ftp