diskimage-builder/doc/source/developer/dib_lint.rst
Ben Nemec c6b6f269cc Add documentation for dib-lint
Prior to this, no user documentation of dib-lint existed, which
meant users had to read the dib-lint code itself to figure out
how it worked.  This changes adds documentation on using dib-lint
and the checks it currently supports.

Change-Id: I285c5cc680dd9fbd9bd3f667ef102be14e248114
2016-05-02 01:29:17 -05:00

51 lines
1.7 KiB
ReStructuredText

dib-lint
========
dib-lint provides a way to check for common errors in diskimage-builder
elements. To use it, simply run the ``dib-lint`` script in a directory
containing an ``elements`` directory. The checks will be run against
every file found under ``elements``.
The following is a list of what is currently caught by dib-lint:
* executable: Ensure any files that begin with #! are executable
* indent: Ensure that all source code is using an indent of four spaces
* element-deps ordering: Ensure all element-deps files are alphabetized
* /bin/bash: Ensure all scripts are using bash explicitly
* sete: Ensure all scripts are set -e
* setu: Ensure all scripts are set -u
* setpipefail: Ensure all scripts are set -o pipefail
* dibdebugtrace: Ensure all scripts respect the DIB_DEBUG_TRACE variable
* tabindent: Ensure no tabs are used for indentation
* newline: Ensure that every file ends with a newline
* mddocs: Ensure that only markdown-formatted documentation is used
* yaml validation: Ensure that any yaml files in the repo have valid syntax
Some of the checks can be omitted, either for an entire project or for an
individual file. Project exclusions go in tox.ini, using the following
section format::
[dib-lint]
ignore=sete setpipefail
This will cause the set -e and set -o pipefail checks to be ignored.
File-specific exclusions are specified as a comment in the relevant file,
using the following format::
# dib-lint: disable=sete setpipefail
This will exclude the same tests, but only for the file in which the comment
appears.
Only some of the checks can be disabled. The ones available for exclusion are:
* executable
* indent
* sete
* setu
* setpipefail
* dibdebugtrace
* tabindent
* newline
* mddocs