SFTP for Perl on CygWin

pcrowley203 has asked for the wisdom of the Perl Monks concerning the following question:

I am running PERL 5.26.2 on CygWIN 2.9.0.0 on Windows 10. I need to execute an sftp from Perl. The base installation of perl doesn't seem to include sftp, so I downloaded and tried to install Net::SFTP. This seems to require Net::SSH2, which I also downloaded and tried to install. That seems to require crypt.h. In attempt to get crypt.h into place, I downloaded and tried to install gcrypt-0.3. Surprisingly, that too requires (and does not include) crypt.h. So I downloaded and tried to install Crypt-GCrypt-1.26. That seems to require the library 'gcrypt'. So I downloaded and tried to install libgcrypt-1.8.3. That requires libgptg-error-1.9, which I downloaded and tried to install. That will not compile because the compiler does not like a long series of lines all of the form: { , "GPG_ERR_SOMETHING"}

It doesn't seem like this should be so hard. Does anyone have any advice for me?

Comment on SFTP for Perl on CygWin

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Re: SFTP for Perl on CygWin by marto (Cardinal) on Jul 18, 2018 at 19:48 UTC
Since you are working on windows have you considered Strawberry Perl? It ships with a sane development environment and many libraries, including Net::SSH2. Failing that you're going to have to be more specific about how you tried to install these things and what the failures are.	[reply]
Re^2: SFTP for Perl on CygWin by pryrt (Abbot) on Jul 18, 2018 at 20:15 UTC
while I second the Strawberry Perl recommendation, cygwin is a reasonably-"sane" development environment (though I haven't actively used it in years), and you should probably just have to install the appropriate development library. A quick search for "cygwin crypt.h" found this cygwin mailing list post, where it says you need to install the libcrypt-devel development library to get the headers/etc, and libcrypt0 for the DLL itself. A package search on cygwin does show those two packages exist. So, try to use cygwin's package manager for the libcrypt-devel and libcrypt0, and then see whether you can install the perl modules. I thought there might even be a package for properly installing Net::SSH2 and/or Net::SFTP ... but, not that I could find.	[reply]
Re^3: SFTP for Perl on CygWin by marto (Cardinal) on Jul 20, 2018 at 10:38 UTC
I suggested Strawberry because it already includes all sorts of useful libraries and perl modules, including Net::SSH2. This made working on Windows so much easier for me, and given how easy it is to use I don't see any advantage of using perl via Cygwin. Perhaps someone has a special use case. Net::SFTP is a pure perl implementation.	[reply]
Re^3: SFTP for Perl on CygWin by Anonymous Monk on Jul 20, 2018 at 16:25 UTC
Thanks. So I installed the source for libcrypt-devel using the CygWin installer. I then found I had to further install Math::Int64, Net::SSH::perl, and Crypt::PRNG. Once all that was done, I could install Net::SSH2 and then Net::SFTP. Everything seemed to make, make test, and make install successfully with all of that. I run my script, and it still says "Can't locate Net/SFTP.pm in @INC (you may need to install the Net::SFTP module)" This seems strange to me, given that it seems successfully installed Net::SFTP. Any ideas? Thanks again.	[reply]
Re: SFTP for Perl on CygWin by choroba (Cardinal) on Jul 18, 2018 at 22:55 UTC
Several years ago, I was able to use Net::SFTP::Foreign with cygwin. It uses external commands installed in the system, so if you have ssh installed, you should be OK. ($q=q:Sq=~/;[c](.)(.)/;chr(-\|\|-\|5+lengthSq)`"S\|oS2"`map{chr \|+ord }map{substrSq`S_+\|`\|}3E\|-\|`7**2-3:)=~y+S\|`+$1,++print+eval$q,q,a, [download]	[reply] [d/l]