CycloneDX Software Bill of Materials (SBOM) generation utility
Project description
CycloneDX Python SBOM Generation Tool
This project provides a runnable Python-based application for generating CycloneDX bill-of-material documents from either:
- Your current Python Environment
- Your project's manifest (e.g.
Pipfile.lock,poetry.lockorrequirements.txt) - Conda as a Package Manager
The BOM will contain an aggregate of all your current project's dependencies, or those defined by the manifest you supply.
CycloneDX is a lightweight BOM specification that is easily created, human-readable, and simple to parse.
Installation
Install this from PyPi.org using your preferred Python package manager.
Example using pip:
pip install cyclonedx-bom
Example using poetry:
poetry add cyclonedx-bom
Usage
Once installed, you can access the full documentation by running --help:
$ cyclonedx-bom --help
usage: cyclonedx-bom [-h] (-c | -cj | -e | -p | -pip | -r) [-i FILE_PATH]
[--format {json,xml}] [--schema-version {1.3,1.2,1.1,1.0}]
[-o FILE_PATH] [-F] [-X]
CycloneDX SBOM Generator
optional arguments:
-h, --help show this help message and exit
-c, --conda Build a SBOM based on the output from `conda list
--explicit` or `conda list --explicit --md5`
-cj, --conda-json Build a SBOM based on the output from `conda list
--json`
-e, --e, --environment
Build a SBOM based on the packages installed in your
current Python environment (default)
-p, --p, --poetry Build a SBOM based on a Poetry poetry.lock's contents.
Use with -i to specify absolute pathto a `poetry.lock`
you wish to use, else we'll look for one in the
current working directory.
-pip, --pip Build a SBOM based on a PipEnv Pipfile.lock's
contents. Use with -i to specify absolute pathto a
`Pipefile.lock` you wish to use, else we'll look for
one in the current working directory.
-r, --r, --requirements
Build a SBOM based on a requirements.txt's contents.
Use with -i to specify absolute pathto a
`requirements.txt` you wish to use, else we'll look
for one in the current working directory.
-X Enable debug output
Input Method:
Flags to determine how `cyclonedx-bom` obtains it's input
-i FILE_PATH, --in-file FILE_PATH
File to read input from, or STDIN if not specified
SBOM Output Configuration:
Choose the output format and schema version
--format {json,xml} The output format for your SBOM (default: xml)
--schema-version {1.3,1.2,1.1,1.0}
The CycloneDX schema version for your SBOM (default:
1.3)
-o FILE_PATH, --o FILE_PATH, --output FILE_PATH
Output file path for your SBOM (set to '-' to output
to STDOUT)
-F, --force If outputting to a file and the stated file already
exists, it will be overwritten.
Building CycloneDX for your current Python environment
This will produce the most accurate and complete CycloneDX BOM as it will include all transitive dependencies required
by the packages defined in your project's manifest (think requriements.txt).
When using Environment as the source, any license information available from the installed packages will also be included in the generated CycloneDX BOM.
Simply run:
cyclonedx-bom -e -o -
This will generate a CycloneDX including all packages installed in your current Python environment and output to STDOUT
in XML using the latest schema version 1.3 by default.
Building CycloneDX from your Manifest / Package Manager
Note: Manifest scanning limits the amount of information available. Each manifest type contains different information but all are significantly less complete than scanning your actual Python Environment.
Conda
We support parsing output from Conda in various formats:
- Explict output (run
conda list --explicitorconda list --explicit --md5) - JSON output (run
conda list --json)
As example:
conda list --explicit --md5 | cyclonedx-bom -c -o cyclonedx.xml
Poetry
We support parsing your poetry.lock file which should be committed along with your pyrpoject.toml and details
exact pinned versions.
You can then run cyclonedx-bom as follows:
cyclonedx-bom -p -i PATH/TO/poetry.lock -o sbom.xml
If your poetry.lock is in the current working directory, you can also shorten this to:
cyclonedx-bom -p -o sbom.xml
Pip
We currently support Pipfile.lock manifest files.
You can then run cyclonedx-bom as follows:
cyclonedx-bom -pip -i PATH/TO/Pipfile.lock -o sbom.xml
If your Pipfile.lock is in the current working directory, you can also shorten this to:
cyclonedx-bom -pip -o sbom.xml
Requirements
We currently support requirements.txt manifest files. Note that a BOM such as CycloneDX expects exact version numbers,
therefore if you wish to generate a BOM from a requirements.txt, these must be frozen. This can be accomplished via:
pip freeze > requirements.txt
You can then run cyclonedx-bom as follows:
cyclonedx-bom -r -i PATH/TO/requirements.txt -o sbom.xml
If your requirements.txt is in the current working directory, you can also shorten this to:
cyclonedx-bom -r -o sbom.xml
This will generate a CycloneDX and output to STDOUT in XML using the latest schema version 1.3 by default.
Note: If you failed to freeze your dependencies before passing the requirements.txt data to cyclonedx-bom,
you'll be warned about this and the dependencies that do not have pinned versions WILL NOT be included in the resulting
CycloneDX output.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!! Some of your dependencies do not have pinned version !!
!! numbers in your requirements.txt !!
!! !!
!! -> idna !!
!! -> requests !!
!! -> urllib3 !!
!! !!
!! The above will NOT be included in the generated !!
!! CycloneDX as version is a mandatory field. !!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Python Support
We endeavour to support all functionality for all current actively supported Python versions. However, some features may not be possible/present in older Python versions due to their lack of support.
Copyright & License
CycloneDX BOM is Copyright (c) OWASP Foundation. All Rights Reserved.
Permission to modify and redistribute is granted under the terms of the Apache 2.0 license.
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