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Re: [ITP] cygcheck-leaves - a script to list installed packages not required by any
- From: Mikhail Usenko <mikeus at nm dot ru>
- To: cygwin-apps at cygwin dot com
- Date: Thu, 31 Oct 2013 12:34:23 +0400
- Subject: Re: [ITP] cygcheck-leaves - a script to list installed packages not required by any
- Authentication-results: sourceware.org; auth=none
Hello Corinna,
On 18 Oct 2013 10:07:20, Corinna wrote:
> Hi Mikhail,
>
> On Oct 5 23:03, Mikhail wrote:
> > As soon as setup.exe hasn't got an option to uninstall a package along with its requirements which have become unused after uninstalling that package, and cygcheck utility also does not provide any information on package dependencies I have written a bash script to list installed Cygwin packages which are not required by any other installed packages (that is package leaves in the dependency tree).
> >
> > Developers usually have many lib*-devel packages installed on their system, these packages and others are required only as build dependencies so I think this script will be useful primarily for ordinary users who experiment with software and want to keep their Cygwin installation clean. They will be able to check the list of installed packages for unneeded ones.
> >
> > I would like to propose this script as a Cygwin package if you appreciate it. The name of the script can be changed according to Cygwin policy on the use of cyg- prefix for such a type of programs.
> >
> > setup.hint:
> >
> > category: Utils
> > requires: bash coreutils sed wget bzip2
> > sdesc: "List installed Cygwin packages which are not required by any other installed packages"
>
> I like the idea, but your script doesn't work as expected:
>
> $ ./cygcheck-leaves -v
> --2013-10-18 09:54:19-- ftp://sourceware.org/pub/cygwin/x86_64-cygwin/setup.bz2
> => `/var/cache/cygcheck-leaves/x86_64-cygwin/.listing'
> Resolving sourceware.org... 209.132.180.131
> Connecting to sourceware.org|209.132.180.131|:21... connected.
> Logging in as anonymous ... Logged in!
> ==> SYST ... done. ==> PWD ... done.
> ==> TYPE I ... done. ==> CWD (1) /pub/cygwin/x86_64-cygwin ...
> No such directory `pub/cygwin/x86_64-cygwin'.
>
> That should be x86_64, not x86_64-cygwin. The reason is that HOSTTYPE
> has been already set by tcsh, and tcsh has another idea of that
> variable than bash.
>
> There's also the problem that, even under bash, the HOSTTYPE for 32 bit
> is i686, but the directory on sourceware is called x86.
>
> I guess what you want is something along the lines of
>
> targetdir=$(uname -m)
> [ "${targetdir}" = "i686" ] && machine='x86'
> setup_bz2_url="ftp://sourceware.org/pub/cygwin/${targetdir}/setup.bz2"
>
>
Thanks for the comment. I've forgotten to test the script on 32-bit Windows.
Now it uses a bash-specific variable to determine the CPU type and should work OK.
Also after some time of using I've completely rewritten it having added new
functionality and renamed it to 'cygcheck-dep'.
setup.hint:
-----------
category: Utils
requires: bash coreutils sed wget bzip2
sdesc: "Show information on dependencies for installed Cygwin packages"
-----------
URLs:
-----
http://file.qip.ru/file/kXnF6W2W/setup.html
http://file.qip.ru/file/nfMsL0EG/cygcheck-dep-1.0-1.tar.html
-----
Direct links:
-------------
http://files1.qip.ru/1000000020176058/v1/7b5c996f-25a9-4c5f-923f-7a72c731227d/setup.hint
http://files1.qip.ru/1000000020176058/v1/73b199b5-0577-4d5b-b626-928d7c738a12/cygcheck-dep-1.0-1.tar.bz2
-------------
Usage examples:
$ # list packages that are free for uninstalling ("leaves" and "islands")
$ cygcheck-dep -c -li
alternatives
base-files
bc
cpio
curl
cygutils
cygutils-extra
cygwin-doc
cygwin-x-doc
e2fsimage
e2fsprogs
ed
email
file
hostname
ipc-utils
login
make
man
mintty
openssh
perl-Error
rsync
run
shutdown
socat
vim
vim-minimal
wget
which
( python python-tkinter )
( mingw64-i686-gcc-core mingw64-i686-runtime )
( mingw64-x86_64-gcc-core mingw64-x86_64-runtime )
$ # show groups of packages with circular dependencies in the package repository (x86_64)
$ cygcheck-dep -c -IS
( libgcr3_1 libgtk3_0 libsecret1_0 dconf-service gcr gnome-keyring gvfs )
( at-spi2-core libatspi0 )
( texlive texlive-collection-basic )
( libgconf2_4 gconf-desktop-schemas GConf2 )
( dbus libdbus1_3 )
( xf86-video-dummy xf86-video-nested xorg-server )
( libMagickCore5 libpstoedit0 libautotrace3 )
( libglib2.0_0 gamin gsettings-desktop-schemas libfam0 )
( python3 python3-tkinter )
( libopenldap2_4_2 libsasl2_3 )
( python python-tkinter )
( mingw64-i686-gcc-core mingw64-i686-runtime )
( mingw64-x86_64-gcc-core mingw64-x86_64-runtime )
( libopenmpi openmpi )
( ruby ruby-json ruby-rake ruby-rdoc )
( libgmp10 libiconv2 libintl8 libmpfr4 libncursesw10 libpcre1 libreadline7 libstdc++6 coreutils cygwin rebase sed terminfo texinfo tzcode dash _autorebase _update-info-dir gawk grep gzip libattr1 bash libgcc1 )
( texlive-collection-bibtexextra biber )
$ # show package dependencies for installed packages
$ cygcheck-dep -c -rRnN bash which
bash: requires ( coreutils libintl8 libncursesw10 libreadline7 _update-info-dir cygwin )
bash: recursively requires ( _autorebase _update-info-dir base-cygwin bash ...skipped... tzcode )
bash: is needed for ( _update-info-dir base-files bzip2 coreutils csih ...skipped... vim-common xz )
bash: is recursively needed for ( _autorebase _update-info-dir alternatives ...skipped... xz zlib0 )
which: requires ( _update-info-dir cygwin )
which: recursively requires ( _autorebase _update-info-dir base-cygwin bash ...skipped... tzcode )
which: is needed for ( )
which: is recursively needed for ( )
--