DGET(1)

NAME
dget - Download Debian source and binary packages

SYNOPSIS

dget [options] URL ...
dget [options] [--all] package[=version] ...

DESCRIPTION
dget downloads Debian packages. In the first form, dget fetches the requested URLs. If this is a .dsc or .changes file, then dget acts as a source-package aware form of wget: it also fetches any files referenced in the .dsc/.changes file. The downloaded source is then checked with dscverify and, if successful, unpacked by dpkg-source.

In the second form, dget downloads a binary package (i.e., a .deb file) from the Debian mirror configured in /etc/apt/sources.list(.d). If a version number is specified, this version of the package is requested. With --all, the list of all binaries for the source package package is extracted from the output of "apt-cache showsrc package".

In both cases dget is capable of getting several packages and/or URLs at once.

(Note that .udeb packages used by debian-installer are located in separate packages files from .deb packages. In order to use .udebs with dget, you will need to have configured apt to use a packages file for component/debian-installer).

Before downloading files listed in .dsc and .changes files, and before downloading binary packages, dget checks to see whether any of these files already exist. If they do, then their md5sums are compared to avoid downloading them again unnecessarily. dget also looks for matching files in /var/cache/apt/archives and directories given by the --path option or specified in the configuration files (see below). Finally, if downloading (.orig).tar.gz or .diff.gz files fails, dget consults apt-get source --print-uris. Download backends used are curl and wget, looked for in that order.

dget package should be implemented in apt-get install -d.

dget was written to make it easier to retrieve source packages from the web to sponsor uploads, and thus the primary use case is downloading binary and source packages from a URL. For fetching packages from apt repositories it is easier to simply run apt-get download package and apt-get source package with optional --download-only to not uncompress it with dpkg-source automatically, or package=1.22-1 to define an exact version instead of just the latest version.

OPTIONS

-a, --all
    Interpret package as a source package name, and download all binaries as found in the output of "apt-cache showsrc package". If package is arch-qualified, then only binary packages which are "Arch: all", "Arch: any", or "Arch: $arch" will be downloaded.

-b, --backup
    Move files that would be overwritten to ./backup.

-q, --quiet
    Suppress wget/curl non-error output.

-d, --download-only
    Do not run dpkg-source -x on the downloaded source package. This can only be used with the first method of calling dget.

-x, --extract
    Run dpkg-source -x on the downloaded source package to unpack it. This option is the default and can only be used with the first method of calling dget.

-u, --allow-unauthenticated
    Do not attempt to verify the integrity of downloaded source packages using dscverify.

--build
    Run dpkg-buildpackage -b -uc on the downloaded source package.

--path DIR[:DIR ...]
    In addition to /var/cache/apt/archives, dget uses the colon-separated list given as argument to --path to find files with a matching md5sum. For example: "--path /srv/pbuilder/result:/home/cb/UploadQueue". If DIR is empty (i.e., "--path ''" is specified), then any previously listed directories or directories specified in the configuration files will be ignored. This option may be specified multiple times, and all of the directories listed will be searched; hence, the above example could have been written as: "--path /srv/pbuilder/result --path /home/cb/UploadQueue".

-k, --insecure
    Allow SSL connections to untrusted hosts.

--no-cache
    Bypass server-side HTTP caches by sending a Pragma: no-cache header.

-h, --help
    Show a help message.

-V, --version
    Show version information.

CONFIGURATION VARIABLES
The two configuration files /etc/devscripts.conf and ~/.devscripts are sourced by a shell in that order to set configuration variables. Command line options can be used to override configuration file settings. Environment variable settings are ignored for this purpose. The currently recognised variable is:

DGET_PATH
    This can be set to a colon-separated list of directories in which to search for files in addition to the default /var/cache/apt/archives. It has the same effect as the --path command line option. It is not set by default.

DGET_UNPACK
    Set to 'no' to disable extracting downloaded source packages. Default is 'yes'.

DGET_VERIFY
    Set to 'no' to disable checking signatures of downloaded source packages. Default is 'yes'.

EXAMPLES
Download all binary .deb files for current and previous version of a package, and compare them byte-for-byte with diffoscope:

  mkdir previous latest
  (cd latest && dget --all mypackage=1.2-1)
  (cd previous && dget --all mypackage) # download latest 1.2-2 in this example
  diffoscope --html=diffoscope.html previous/ latest/

Download the source package of the current version in apt repository and the to-be-reviewed new version at mentors.debian.net, and compare them with debdiff:

  dget https://mentors.debian.net/debian/pool/main/m/mypackage/mypackage_1.2-3.dsc
  apt-get source mypackage=1.2-2
  debdiff --from mypackage_1.2-2.dsc --to mypackage_1.2-3.dsc

BUGS AND COMPATIBILITY
dget --all srcpkg should be implemented in apt-get download srcpkg so apt-get could download all binary packages based on source package name.

Before devscripts version 2.10.17, the default was not to extract the downloaded source. Set DGET_UNPACK=no to revert to the old behaviour.

AUTHOR
This program is Copyright (C) 2005-2013 by Christoph Berg <myon@debian.org>. Modifications are Copyright (C) 2005-06 by Julian Gilbey <jdg@debian.org>.

This program is licensed under the terms of the GPL, either version 2 of the License, or (at your option) any later version.

SEE ALSO
apt-get(1), curl(1), debcheckout(1), debdiff(1), dpkg-source(1), wget(1)