Tcl

Execute an FTP Upload Plan

Demonstrates the Chilkat Ftp2.PutPlan method, which executes a previously created upload plan. The first argument is the plan text and the second is the local path of a completion log that records each successful operation.

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 completion log is what makes plan execution resumable: each successful upload is recorded, so if a run is interrupted, re-executing the same plan skips the operations already logged and continues where it left off — invaluable for a large transfer over a flaky connection. The plan's stored absolute remote paths are used regardless of the current remote directory, so execution is independent of session state.

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Tcl


load ./chilkat.dll

set success 0

#  Demonstrates the Ftp2.PutPlan method, which executes a previously created upload plan.  The 1st
#  argument is the plan text and the 2nd is the local path of a completion log.

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
}

#  Load a plan that was previously created with CreatePlan.
set sbPlan [new_CkStringBuilder]

set success [CkStringBuilder_LoadFile $sbPlan "qa_output/upload_plan.txt" "utf-8"]
if {$success == 0} then {
    puts [CkStringBuilder_lastErrorText $sbPlan]
    delete_CkFtp2 $ftp
    delete_CkStringBuilder $sbPlan
    exit
}

set plan [CkStringBuilder_getAsString $sbPlan]

#  Execute the plan.  Each successful operation is recorded in the completion log, which lets an
#  interrupted run be resumed without repeating completed uploads.  The plan uses its stored
#  absolute remote paths even if the current remote directory has changed.
set success [CkFtp2_PutPlan $ftp $plan "qa_output/upload_done.log"]
if {$success == 0} then {
    puts [CkFtp2_lastErrorText $ftp]
    delete_CkFtp2 $ftp
    delete_CkStringBuilder $sbPlan
    exit
}

puts "Upload plan executed."

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


delete_CkFtp2 $ftp
delete_CkStringBuilder $sbPlan