Create a SQLAlchemy Session to manage database transactions.

Checks whether the table exists or not. Returns boolean (True if the table exists, False otherwise)

This function is responsible of translating a RawCommit (git) into a preprocessed Commit, that can be saved to the DB and later used by t

Clones the specified repository checking out the default branch in a subdir of output_folder. Shallow=true speeds up considerably the

Clean a tag name returning only the numeric part separated by dots.

Given a version string, return True if the last digit is zero.

Extract CVSS fields from a metrics array (e.g., cvssMetricV2, cvssMetricV31)

Decode a LeanMinHash object from a string

Encode a LeanMinHash object into a string

Return the list of the security keywords found in the text

Return an array containing the diff lines, and the hunks count

Compute a MinHash object from a string

converts runtime of the slice of code more readable format

the 'what' parameter can be a year or 'recent' or 'modified'

Use spacy to extract "relevant words" from text

Fetch the commits and save the extracted data into commit-, file- and method level tables.

Return the unsorted collection of all its sub collections and their sub collections and so forth.

Given the tag list and a tag, return either the previous or the next tag candidates.

:returns guessed programming language of the code

Given a tag and a list of tags, return True if the tag is in the list or is a substring of one of the tags.

retrieves reference links from CVE records to populate 'fixes' table

Flatten NVD 2.0 vulnerabilities and extract required fields :param vulnerabilities_list: list of vulnerability objects from NVD 2.0 JSON