Tcl

Unzip Files in a Date Range

See more Zip Examples

Demonstrates how to use the Zip.MinDate and Zip.MaxDate properties to unzip only those files with a last-modified date within a date range.

Note: This example requires Chilkat v10.0.0 or greater.

Tcl

load ./chilkat.dll

set success 0

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

set zip [new_CkZip]

set success [CkZip_OpenZip $zip "qa_data/zips/sample.zip"]
if {$success != 1} then {
    puts [CkZip_lastErrorText $zip]
    delete_CkZip $zip
    exit
}

# The MinDate and MaxDate properties use the timestamp date/time string format.
# Here are some examples:
# YYYY-MM-DD (e.g., 2024-07-31)
# YYYY-MM-DDTHH:MM:SS�HH:MM (e.g., 2024-07-31T12:34:56+02:00)
# 2024-07-31T12:34:56Z (the "Z" denotes Zulu time, or UTC)

# Only unzip files having a last-modified date greater than 1-Jan-2017
CkZip_put_MinDate $zip "2017-01-01T00:00:00Z"

# Also, only unzip files having a last-modified date less than the end of 2020
CkZip_put_MaxDate $zip "2020-12-31T23:59:59Z"

# You don't need to specify both MinDate and MaxDate.
# You can specify only one or the other if needed.

# The MinDate/MaxDate properties apply to all of the Chilkat methods for unzipping.

set numUnzipped [CkZip_Unzip $zip "c:/temp/unzipDir"]
if {$numUnzipped < 0} then {
    puts [CkZip_lastErrorText $zip]
    delete_CkZip $zip
    exit
}

CkZip_CloseZip $zip

delete_CkZip $zip