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q applets
The app-portage/portage-utils package is a collection of very fast utilities written in C, which are meant to offer a faster but more limited alternative to their app-portage/gentoolkit counterparts. Please note that q applets are not meant to replace gentoolkit. The utilities may be much more efficient than the equivalent ones from gentoolkit and might be better suited to be used in scripts that need to call Portage repeatedly, but they do not offer the same functionality. q applets do not consider eclasses and do not provide tools like revdep-rebuild or glsa-check.
Installation
USE flags
USE flags for app-portage/portage-utils Small and fast Portage helper tools written in C
openmp
|
Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp" |
qmanifest
|
Build qmanifest applet, this adds additional dependencies for GPG, OpenSSL and BLAKE2B hashing |
qtegrity
|
Build qtegrity applet, this adds additional dependencies for OpenSSL |
static
|
!!do not set this during bootstrap!! Causes binaries to be statically linked instead of dynamically |
Emerge
Install the q applets:
root #emerge --ask app-portage/portage-utilsConfiguration
Before using the applets first initialize the cache:
root #q -rUsage
Invocation
The complete list of applications that are provided by app-portage/portage-utils can be listed by typing man q or q --help. Please read the man page for each utility described, as this guide is only meant to be a short reference for the most useful functions and does not include all the information about each application.
To see the available applets with a short description of their function, use q --help:
user $q --helpUsage: q <applet> <args> : invoke a portage utility applet
Currently defined applets:
q <applet> <args> : virtual applet
qatom <pkg> : split atom strings
qcache <action> <args> : search the metadata cache
qcheck <pkgname> : verify integrity of installed packages
qdepends <pkgname> : show dependency info
qfile <filename> : list all pkgs owning files
qgrep <misc args> : grep in ebuilds
qlist <pkgname> : list files owned by pkgname
qlop <pkgname> : emerge log analyzer
qmerge <pkgnames> : fetch and merge binary package
qpkg <misc args> : manipulate Gentoo binpkgs
qsearch <regex> : search pkgname/desc
qsize <pkgname> : calculate size usage
qtbz2 <misc args> : manipulate tbz2 packages
quse <useflag> : find pkgs using useflags
qxpak <misc args> : manipulate xpak archives
Options: -[irmM:vqChV]
-i, --install * Install symlinks for applets
-r, --reinitialize * Reinitialize ebuild cache
-m, --metacache * Reinitialize metadata cache
-M, --modpath <arg> * Module path
-v, --verbose * Make a lot of noise
-q, --quiet * Tighter output; suppress warnings
-C, --nocolor * Don't output color
-h, --help * Print this help and exit
-V, --version * Print version and exitHow to find a package to which a file belongs (qfile)
The qfile command finds the package to which a file belongs:
user $qfile /etc/fonts/fonts.confmedia-libs/fontconfig (/etc/fonts/fonts.conf)
user $qfile /usr/share/keymaps/atari/atari-uk-falcon.map.gzsys-apps/kbd (/usr/share/keymaps/atari/atari-uk-falcon.map.gz)
Verifying package integrity (qcheck)
To check the MD5 sums or modification times of the files installed by some package, use the qcheck application:
user $qcheck portage-utilsChecking app-portage/portage-utils-0.1.13 ... * 36 out of 36 files are good
All the files which were changed after installation will be reported here. Configuration files which have been manually edited after installation are reported too.
Listing packages which depend on some package (qdepends)
qdepends allows to list all the packages which depend on some package. Use the -a option to show all the DEPEND, RDEPEND, and PDEPEND information for a package.
user $qdepends -a pygtk* DEPEND dev-python/pygtk-2.8.2: >=dev-lang/python-2.3 >=x11-libs/gtk+-2.8.0 >=dev-libs/glib-2.8.0 >=x11-libs/pango-1.10.0 >=dev-libs/atk-1.8.0 >=gnome-base/libglade-2.5.0 >=dev-python/pycairo-0.9.0 dev-python/numeric virtual/opengl dev-python/pyopengl >=x11-libs/gtkglarea-1.99 >=dev-util/pkgconfig-0.9 sys-devel/patch * RDEPEND dev-python/pygtk-2.8.2: >=dev-lang/python-2.3 >=x11-libs/gtk+-2.8.0 >=dev-libs/glib-2.8.0 >=x11-libs/pango-1.10.0 >=dev-libs/atk-1.8.0 >=gnome-base/libglade-2.5.0 >=dev-python/pycairo-0.9.0 dev-python/numeric virtual/opengl dev-python/pyopengl >=x11-libs/gtkglarea-1.99 * PDEPEND
Listing all packages (installed or not) which depend on some package (qgrep)
The q applets can be used to find ebuilds that mention an ebuild's name ("libechonest" is used in the example below) with great speed:
user $qgrep -H libechonest | cut -f1 -d":" | uniqmedia-libs/libechonest/libechonest-2.0.2.ebuild media-libs/libechonest/libechonest-2.2.0-r1.ebuild media-libs/libechonest/libechonest-2.3.0.ebuild media-libs/libechonest/libechonest-2.3.1.ebuild media-libs/libechonest/libechonest-2.3.1-r1.ebuild media-libs/libechonest/libechonest-9999.ebuild media-sound/clementine/clementine-1.2.3.ebuild media-sound/clementine/clementine-1.2.3-r1.ebuild media-sound/clementine/clementine-1.3.1-r1.ebuild media-sound/tomahawk/tomahawk-0.8.4-r3.ebuild media-sound/tomahawk/tomahawk-9999.ebuild
Listing files that belong to an ebuild (qlist)
The qlist command gives a list of all files that belong to an ebuild.
user $qlist vim/usr/bin/gvim /usr/bin/gvimdiff /usr/bin/evim /usr/bin/eview /usr/bin/gview /usr/bin/rgvim [...]
Looking for packages that use some USE flag (quse)
Listing used USE flags is done with quse, which must be run with root permissions. It may take some time to first create/update the ebuild cache.
user $quse firefoxapp-misc/tracker/tracker-0.12.10-r1.ebuild applet doc eds elibc_glibc exif firefox-bookmarks flac flickr gif [...]
Finding package sizes (qsize)
To show the size of a package, use the qsize application:
user $qsize vimapp-editors/gvim-6.4: 10 files, 7 non-files, 2327.516 KB app-editors/vim-6.4: 6 files, 2 non-files, 2058.14 KB app-editors/vim-core-6.4: 1024 files, 68 non-files, 10950.984 KB [...]
Searching the Portage tree (qsearch)
One of the most powerful tools of app-portage/portage-utils is qsearch. This tool allows to search the Portage tree much faster than using the emerge -s command.
Here are some examples of its usage:
user $qsearch terminusmedia-fonts/terminus-font A clean fixed font for the console and X11
The homepage of packages can be queried using the -H option:
user $qsearch -H terminusmedia-fonts/terminus-font http://www.is-vn.bg/hamster/jimmy-en.html
In another example, let's look for a jabber client:
user $qsearch -S "jabber client"app-emacs/emacs-jabber A Jabber client for Emacs. net-im/gajim Jabber client written in PyGTK net-im/gnome-jabber Gnome Jabber Client net-im/gossip Lightweight Jabber client for GNOME net-im/imcom Python commandline Jabber Client net-im/psi QT 3.x Jabber Client, with Licq-like interface net-im/tkabber Featureful Jabber client for tcl/tk. x11-themes/psi-themes Iconsets for Psi, a QT 3.x Jabber Client
Extracting information from emerge logs (qlop)
qlop allows to extract useful information from the emerge.log file. It can be useful when package compilation times need to be estimated or to compare build times with other systems. It also allows to check what is compiling at the moment and how long it will probably take - which is handy when working in the console and don't have any other means to check it.
Estimate how long a dev-lang/perl build takes:
user $qlop -tH perlperl: 7 minutes, 52 seconds for 4 merges
See what is emerging at the moment and how long the process has been running already:
user $qlop -c* perl-5.8.8-r23
started: Mon May 21 12:41:11 2007
elapsed: 19 seconds
See also
- Portage — the official package manager and distribution system for Gentoo.
- Gentoolkit - A suite of tools to ease the administration of a Gentoo system.
- Qcheck - A command-line tool used verify integrity of installed packages.
This page is based on a document formerly found on our main website gentoo.org.
The following people contributed to the original document: Åukasz Damentko, Joshua Saddler (nightmorph), and Marcelo Góes
They are listed here because wiki history does not allow for any external attribution. If you edit the wiki article, please do not add yourself here; your contributions are recorded on each article's associated history page.