guix lint command is meant to help package developers avoid
common errors and use a consistent style. It runs a number of checks on
a given set of packages in order to find common mistakes in their
definitions. Available checkers include (see
--list-checkers for a complete list):
Validate certain typographical and stylistic rules about package descriptions and synopses.
Identify inputs that should most likely be native inputs.
source URLs and report those that are
invalid. Suggest a
mirror:// URL when applicable. If the
source URL redirects to a GitHub URL, recommend usage of the GitHub
URL. Check that the source file name is meaningful, e.g. is not just a
version number or “git-checkout”, without a declared
(see origin Reference).
source URL to determine if a tarball from GitHub is
autogenerated or if it is a release tarball. Unfortunately GitHub’s
autogenerated tarballs are sometimes regenerated.
Checks whether the package’s source code is archived at Software Heritage.
When the source code that is not archived comes from a version-control system
(VCS)—e.g., it’s obtained with
git-fetch, send Software Heritage a
“save” request so that it eventually archives it. This ensures that the
source will remain available in the long term, and that Guix can fall back to
Software Heritage should the source code disappear from its original host.
The status of recent “save” requests can be
When source code is a tarball obtained with
url-fetch, simply print a
message when it is not archived. As of this writing, Software Heritage does
not allow requests to save arbitrary tarballs; we are working on ways to
ensure that non-VCS source code is also archived.
request rate per IP address. When the limit is reached,
prints a message and the
archival checker stops doing anything until
that limit has been reset.
Report known vulnerabilities found in the Common Vulnerabilities and Exposures (CVE) databases of the current and past year published by the US NIST.
To view information about a particular vulnerability, visit pages such as:
CVE-YYYY-ABCD is the CVE identifier—e.g.,
Package developers can specify in package recipes the Common Platform Enumeration (CPE) name and version of the package when they differ from the name or version that Guix uses, as in this example:
(package (name "grub") ;; … ;; CPE calls this package "grub2". (properties '((cpe-name . "grub2") (cpe-version . "2.3"))))
Some entries in the CVE database do not specify which version of a package they apply to, and would thus “stick around” forever. Package developers who found CVE alerts and verified they can be ignored can declare them as in this example:
(package (name "t1lib") ;; … ;; These CVEs no longer apply and can be safely ignored. (properties `((lint-hidden-cve . ("CVE-2011-0433" "CVE-2011-1553" "CVE-2011-1554" "CVE-2011-5244")))))
Warn about obvious source code formatting issues: trailing white space, use of tabulations, etc.
The general syntax is:
guix lint options package…
If no package is given on the command line, then all packages are checked. The options may be zero or more of the following:
List and describe all the available checkers that will be run on packages and exit.
Only enable the checkers specified in a comma-separated list using the
names returned by
Add directory to the front of the package module search path (see Package Modules).
This allows users to define their own packages and make them visible to the command-line tools.