dget - Online in the Cloud

PROGRAM:

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). Unlike apt-get install -d, it does not
require root privileges, writes to the current directory, and does not download
dependencies. 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 was written to make it easier to retrieve source packages from the web for sponsor
uploads. For checking the package with debdiff, the last binary version is available via
dget package, the last source version via apt-get source package.

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".

--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 .deb files for the previous version of a package and run debdiff on them:

dget --all mypackage=1.2-1
debdiff --from *_1.2-1_*.deb --to *_1.2-2_*.deb

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