[wpkg-users] http based download checksum?
r.meier at wpkg.org
Thu Jul 17 09:04:29 CEST 2014
On 16.07.2014 21:54, Paul McGrath wrote:
> I want to try using the http option to try and deploy to remote workers. In the event that I 'install' or 'upgrade' is it possible to prevent a file (zip file) from being downloaded again to the user if it already exists on the target computer?
> How would you code this into the 'install' line? Do you have to use some sort of checksum tool incase the zip file has changed?
You might like to have a look at the downloader tool bundled with WPKG
distribution package (or see here:
The script is designed to allow flexible download of files from HTTP/FTP (via
wget) or UNC paths (via Robocopy). The use-case to keep the downloaded files
isn't really tested but I believe you can achieve it by removing/commenting line
241 to clean the file before download and perhaps introducing another "if exist"
for the actual downloadat line 266. Perhaps wget will handle it already and not
re-download files which didn't change. You need to test it I guess.
Moreover the script already supports MD5 & SHA1 checksum verification of
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