dsc(5) dpkg suite dsc(5)
dsc - Debian source packages' control file format
Each Debian source package is composed of a .dsc control file, which
contains a number of fields. Each field begins with a tag, such as
Source or Binary (case insensitive), followed by a colon, and the body
of the field. Fields are delimited only by field tags. In other
words, field text may be multiple lines in length, but the installation
tools will generally join lines when processing the body of the field
(except in case of the multiline fields Package-List, Files,
Checksums-Sha1 and Checksums-Sha256, see below).
The control data might be enclosed in an OpenPGP ASCII Armored
signature, as specified in RFC4880.
Format: format-version (required)
The value of this field declares the format version of the
source package. The field value is used by programs acting on a
source package to interpret the list of files in the source
package and determine how to unpack it. The syntax of the field
value is a numeric major revision ("0-9"), a period ("."), a
numeric minor revision ("0-9"), and then an optional subtype
after whitespace (" \t"), which if specified is a lowercase
alphanumeric ("a-z0-9") word in parentheses ("()"). The subtype
is optional in the syntax but may be mandatory for particular
source format revisions.
The source formats currently supported by dpkg are 1.0, 2.0, 3.0
(native), 3.0 (quilt), 3.0 (git), 3.0 (bzr) and 3.0 (custom).
See dpkg-source(1) for their description.
Source: source-name (required)
The value of this field determines the package name, and is used
to generate file names by most installation tools.
This folded field lists binary packages which this source
package can produce, separated by commas.
This field has now been superseded by the Package-List field,
which gives enough information about what binary packages are
produced on which architecture, build-profile and other involved
Architecture: arch-list (recommended)
A list of architectures and architecture wildcards separated by
spaces which specify the type of hardware this package can be
compiled for. Common architecture names and architecture
wildcards are amd64, armel, i386, linux-any, any-amd64, etc.
Note that the all value is meant for packages that are
architecture independent, and any for packages that are
architecture dependent. The list may include (or consist solely
of) the special value all. When the list contains the
architecture wildcard any, the only other value allowed in the
list is all.
The field value is generally generated from Architecture fields
from in the debian/control in the source package.
Version: version-string (required)
Typically, this is the original package's version number in
whatever form the program's author uses. It may also include a
Debian revision number (for non-native packages). The exact
format and sorting algorithm are described in deb-version(7).
The name of the distribution this package is originating from.
Maintainer: fullname-email (recommended)
Should be in the format "Joe Bloggs <email@example.com>", and is
typically the person who created the package, as opposed to the
author of the software that was packaged.
Lists all the names and email addresses of co-maintainers of the
package, in the same format as the Maintainer field. Multiple
co-maintainers should be separated by a comma.
The format for the source package description is a short brief
summary on the first line (after the Description field). The
following lines should be used as a longer, more detailed
description. Each line of the long description must be preceded
by a space, and blank lines in the long description must contain
a single '.' following the preceding space.
The upstream project home page url.
Standards-Version: version-string (recommended)
This documents the most recent version of the distribution
policy standards this package complies with.
The url of a web interface to browse the Version Control System
These fields declare the url of the Version Control System
repository used to maintain this package. See
deb-src-control(5) for more details.
This field declares that the source package contains the
specified test suites. The value is a comma-separated list of
test suites. If the autopkgtest value is present, a
debian/tests/control is expected to be present, if the file is
present but not the value, then dpkg-source will automatically
add it, preserving previous values.
This field declares the comma-separated union of all test
dependencies (Depends fields in debian/tests/control file), with
all restrictions removed, and OR dependencies flattened (that
is, converted to separate AND relationships), except for
binaries generated by this source package and its meta-
dependency equivalent @.
Rationale: this field is needed because otherwise to be able to
get the test dependencies, each source package would need to be
These fields declare relationships between the source package
and packages used to build it. They are discussed in the
package package-type section priority key-value-list
This multiline field contains a list of binary packages
generated by this source package.
The package is the binary package name.
The package-type is the binary package type, usually deb,
another common value is udeb.
The section and priority match the binary package fields of the
The key-value-list is a space separated key=value list, and the
currently known optional keys are:
arch The architecture restriction from the binary package
Architecture field, with spaces converted to ','.
The normalized build-profile restriction formula from the
binary package Build-Profile field, with ORs converted to
'+' and ANDs to ','.
If the binary package is essential, this key will contain
the value of the Essential field, that is a yes value.
checksum size filename
These multiline fields contain a list of files with a checksum
and size for each one. These fields have the same syntax and
differ only in the checksum algorithm used: MD5 for Files, SHA-1
for Checksums-Sha1 and SHA-256 for Checksums-Sha256.
The first line of the field value (the part on the same line as
the field name followed by a colon) is always empty. The
content of the field is expressed as continuation lines, one
line per file. Each line consists of the checksum, a space, the
file size, a space, and the file name.
These fields list all files that make up the source package.
The list of files in these fields must match the list of files
in the other related fields.
The Format field conflates the format for the .dsc file itself and the
format of the extracted source package.
deb-src-control(5), deb-version(7), dpkg-source(1).
1.19.7 2022-05-25 dsc(5)
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