On 2020-10-05 09:23, Hamish McIntyre-Bhatty via Cygwin wrote: > On 04/10/2020 11:28, Andrey Repin via Cygwin wrote: >> Greetings, vinay Hegde! >> >> Please no top-posting in this list. >> >>> On Fri, Oct 2, 2020 at 9:13 PM Eliot Moss wrote: >>>> On 10/2/2020 11:26 AM, vinay Hegde via Cygwin wrote: >>>>> Hi Cygwin Team, >>>>> In Cygwin 3.6, I am facing an issue while using tar.exe for extracting >>>>> .tar.z file. >>>>> >>>>> Issue summary: >>>>> When I use 'tar.exe' to extract the .tar.z file, it extracts all files >>>>> including symlinks. But symlink file size will be 0KB & it throws >>>>> error 'The file cannot be accessed by the system', if I try to open in >>>>> any Windows editor like notepad or notepad++ >>>>> >>>>> Below are the details: >>>>> - OS: Windows 2019 >>>>> - Cygwin version installed: 3.6 (tar version: 1.29) >>>>> - Command used to extract the tar file is: tar -zxvf jre64.tar.Z >>>>> - 'ls -l' on the extracted directory shows: >>>>> lrwxrwxrwx 1 etbuild Domain Users 8 Jul 10 2017 ControlPanel -> >>>>> jcontrol >>>>> -rwxr-xr-x+ 1 etbuild Domain Users 7734 Mar 15 2017 java >>>>> -rwxr-xr-x+ 1 etbuild Domain Users 128791 Mar 15 2017 javaws >>>>> -rwxr-xr-x+ 1 etbuild Domain Users 6264 Mar 15 2017 jcontrol >>>>> >>>>> - As you can see 'ControlPanel' is a symlink file with 0KB >>>>> (8Bytes) size. This file, I cannot open in any Windows editor. It >>>>> throws error like ''The file cannot be accessed by the system' >>>>> >>>>> - However, I can open this file in vi editor or I can 'cat' this. >>>>> >>>>> - Earlier, I was using Cygwin version 1.7 (tar version: 1.27) & in >>>>> that, this issue was not there. Symlink file size was 1KB & I could >>>>> open it with any Windows editor. >>>>> >>>>> Please suggest what needs to be done to fix this issue. >>>> Hi, Vinay - Cygwin can use, and create, a variety of forms of links. Some >>>> of these are understood >>>> by Windows tools, some not. I suggest you read in the Cygwin >>>> documentation about symlinks and >>>> decide what kind are best for you. Then you'll need to set that up, >>>> delete the existing link, and >>>> re-create it. I personally run with CYGWIN=winsymlinks:native, but as we >>>> say in Internet land, YMMV. >>>> >>> Hi Eliot Moss, >>> Thank you very much for the quick response & the information.It really >>> helped. >>> I just set 'CYGWIN=winsymlinks:lnk' & I am now able to open sym-link >>> file. Both 'CYGWIN=winsymlinks:lnk' & 'CYGWIN=winsymlinks' are working >>> for me. >>> But it creates a shortcut(not the regular file). Hope it won't impact >>> my existing setup. >>> But both 'CYGWIN=winsymlinks:native' (which is default I believe) & >>> 'CYGWIN=winsymlinks:nativestrict' are not working for me. Just to >>> understand, In what OS environment/File System 'native' will work? >> Given enough permissions, "native" will work everywhere, it will create >> native >> symlink, but failing that, it will fall back to creating Cygwin link. >> >> LNK is an Explorer shortcut, which would work with many programs outside >> Cygwin, but not necessarily with your one. >> >> See https://cygwin.com/cygwin-ug-net/using.html#pathnames-symlinks as well as >> https://cygwin.com/cygwin-ug-net/using-cygwinenv.html > > Does anyone happen to know if there's a way to automatically regenerate > existing symlinks after changing these settings?
Example: remove the "echo" after checking it will update only the desired links: $ for link in `find . -type l` > do > targ=`readlink $link` > echo ln -fsv $targ $link > done ln -fsv linux-kernel/linux-next/cpufeatures.h ./cpufeatures.h ln -fsv linux-kernel/linux-next/cpufeatures.log ./cpufeatures.log ln -fsv ../../cygwin/newlib-cygwin/winsup/cygwin/fhandler_proc.cc ./cpuinfo/fhandler_proc.cc ln -fsv ../../cygwin/newlib-cygwin/winsup/cygwin/sysconf.cc ./cpuinfo/sysconf.cc ln -fsv ../cygwin/cpuid ./cygwin ln -fsv CPUID_Explorer/CPUID/Debug Static/CPUID.exe ./explorer ln -fsv /lib/gcc/x86_64-pc-cygwin/9.3.0/include/cpuid.h ./gcc/cpuid.h ln -fsv linux-kernel/linux-prev-next.diff ./linux-prev-next.diff ln -fsv linux-kernel/linux-next/scattered.log ./scattered.log -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in binary units and prefixes, physical quantities in SI.] -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
