license-coverage-grader

This is a tool which take an SPDX document and pointer to the original source files, and determine a "grade" score to quantify how complete the licensing information is at the file level for the code represented by the SPDX document.

Project setup

Ideal OS: Ubuntu 16.04 LTS

Ideal python version: 2.7

1- The virtual environment we use for this repo is virtualenv.

create a folder named "license-grader-env"(you can call this folder anything you want, but this is cleaner), and navigate to it.

mkdir license-grader-env && cd license-grader-env

2- Make that folder a virtual environment

virtualenv .

3- Clone the repository

git clone https://github.com/spdx/license-coverage-grader.git

4- Navigate to the project you just cloned

cd license-coverage-grader/

5- Activate the virtual environment.

source ../../bin/activate

6- Now, install the utility, using pip.

pip install --editable .

This will give you access to a whole new lot of non fab commands, as described below.

Available terminal commands / functions

Requirement: Inorder to run the commands listed below,

i) you should be in the path:

license-grader-env/license-coverage-grader/license_grader$

ii) You must have the virtualenv activated:

If in license-grader-env/license-coverage-grader/license_grader$ , Run source ../../bin/activate

ALL THE COMMANDS BELOW HAVE A `--help` OPTION WHICH DISPLAYS DESCRIPTIVE MESSAGES.

For instance:

spdx-coverage-grade --help

Outputs:

Usage: grade [OPTIONS]

  Grades a source package

Options:
  --verbose          Will print verbose messages.
  --spdx TEXT        The spdx document.
  --package TEXT     The source package.
  --lines INTEGER    The min number of code lines allowed.
  --percent INTEGER  The min matching percentage.
  --help             Show this message and exit.

THE SAME GOES FOR THE `scan`, `check` and `analyse` methods.

1- Spdx document scan

if you have install the project with pip; spdx-coverage-scan --spdx ~/path/doc.spdx Scans the spdx document, and outputs the results in an xml format as a string, on the terminal. These results are not printed to a file. An example output is shown below:

    <spdx_file>
      <data>
          <item>
              <file val="src/lib/Makefile" />
              <license_info val="LINFO-1 LINFO-2" />
              <license_concluded val="LICO-1 LICO-2" />
          </item>
          <item>
              <file val="src/pkgagent/agent_tests/testdata/fossology-1.2.0-1.el5.i386.rpm/etc/init.d/fossology" />
              <license_info val="NOASSERTION" />
              <license_concluded val="NOASSERTION" />
          </item>
          <item>
              <file val="src/testing/dataFiles/TestData/archives/fossI16L518.7z/fossology/agents/foss_license_agent/licinspect/Makefile" />
              <license_info val="NOASSERTION" />
              <license_concluded val="NOASSERTION" />
          </item>
      </data>
  </spdx_file>

2- Package analysis

if you have install the project with pip; spdx-coverage-analyse --package ~/path_to_source_package Analyses the package it receives, and outputs the analysis results in an xml format as a string, on the terminal. An example output is shown below:

<?xml version="1.0"?><results>
<header>
  <cloc_url>http://cloc.sourceforge.net</cloc_url>
  <cloc_version>1.60</cloc_version>
  <elapsed_seconds>7.50479102134705</elapsed_seconds>
  <n_files>733</n_files>
  <n_lines>134231</n_lines>
  <files_per_second>97.6709408583149</files_per_second>
  <lines_per_second>17886.0410127592</lines_per_second>
</header>
<files>
  <file name="cadasta-platform/functional_tests/pages/Registration.py" blank="18" comment="2" code="64"  language="Python" />
  <file name="cadasta-platform/cadasta/templates/allauth/account/email.html" blank="21" comment="0" code="64"  language="HTML" />
  <file name="cadasta-platform/cadasta/questionnaires/views/api.py" blank="16" comment="0" code="64"  language="Python" />
  <file name="cadasta-platform/cadasta/party/urls/default.py" blank="6" comment="0" code="64"  language="Python" />
</files>
</results>
Analysing the source package: 3.90155696869 seconds

Done.

3- Check

if you have install the project with pip; spdx-coverage-check --spdx ~/path_to_spdx_document --package ~/path_to_source_package --lines 0 --percent 0 This Scans the pdx document and analyses the source package to determine how compatible they are.

4- Grader

if you have install the project with pip; spdx-coverage-grade --spdx ~/path_to_spdx_document --package ~/path_to_source_package --lines 0 --percent 0 This runs the package analysis and the spdx file scan commands described above, but does not output any other result appart from the license coverage grade attributed to the package; as show below:

The package matches the spdx file by 0.0, the lowest permitted value is: 0
Preliminary scan as established a match between the spdx document and the source files. Proceeding ...
GRADE:  F with 0.0 %  pass for files_with_license_concluded
GRADE:  F with 0.0 %  pass for files_with_any_kind_of_license_infos

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