• Collection of cli tools for SARIF processing
• Setup for development
• Examples
  • sarif-results-summary
  • sarif-digest
  • sarif-labeled
  • sarif-list-files
• Sample Data

Collection of cli tools for SARIF processing

THIS IS A WORK IN PROGRESS

Each of these tools present a high-level command-line interface to extract a specific subset of information from a SARIF file. The format of each tool's output will be versioned and, as much as possible, independent of the input.

For human use and to fit with existing tools, the default output format is line-oriented and resembles compiler error formatting.

The goal of this tool set is to support working with sarif files

• at the shell / file level,
• across multiple versions of the same sarif result set,
• and across many repositories.

The implementation language is Python, but that is a detail. The scripts should work well when used with other shell tools, especially diff and git.

Setup for development

This repository uses git lfs for some larger files; installation steps are at git-lfs; on a mac with homebrew, install it via

  brew install git-lfs
  git lfs install

Set up the virtual environment and install the packages:

  python3 -m venv .venv
  . .venv/bin/activate
  python3 -m pip install -r requirements.txt
  # Or separately:
  pip install --upgrade pip
  pip install ipython pyyaml

"Install" for local development:

pip install -e .

Examples

To use git parlance, the porcelain tool is sarif-results-summary, while the plumbing tools are sarif-digest, sarif-labeled and sarif-list-files.

Following are short summaries of each.

sarif-results-summary

Display the SARIF results in human-readable plain text form. Taking the warning around

  src/stc/scintilla/lexers/LexMySQL.cxx:153:24:153:30:

as example, there are two options using only the SARIF file, and one more when source code is available.

1. Display only main result. Using

     sarif-results-summary data/wxWidgets_wxWidgets__2021-11-21_16_06_30__export.sarif 2>&1 |\
         grep LexMySQL.cxx

   only displays

     RESULT: src/stc/scintilla/lexers/LexMySQL.cxx:153:24:153:30: Local variable 'length' hides a [parameter of the same name](1).

2. Display the related information. Using

     sarif-results-summary \
         -r data/wxWidgets_wxWidgets__2021-11-21_16_06_30__export.sarif 2>&1 |\
         grep -A 2 LexMySQL.cxx

   displays

     RESULT: src/stc/scintilla/lexers/LexMySQL.cxx:153:24:153:30: Local variable 'length' hides a [parameter of the same name](1).
   
     REFERENCE: src/stc/scintilla/lexers/LexMySQL.cxx:108:68:108:74: parameter of the same name

3. Either display can be supplemented by source code snippets if the source is available. Using

     sarif-results-summary \
         -s data/wxWidgets-small \
         -r data/wxWidgets_wxWidgets__2021-11-21_16_06_30__export.sarif 2>&1 |\
         grep -A 4 LexMySQL.cxx

   displays the source code with underlines

     RESULT: src/stc/scintilla/lexers/LexMySQL.cxx:153:24:153:30: Local variable 'length' hides a [parameter of the same name](1).
   
               Sci_Position length = sc.LengthCurrent() + 1;
                            ^^^^^^
     REFERENCE: src/stc/scintilla/lexers/LexMySQL.cxx:108:68:108:74: parameter of the same name
   
     static void ColouriseMySQLDoc(Sci_PositionU startPos, Sci_Position length, int initStyle, WordList *keywordlists[],
                                                                        ^^^^^^

sarif-digest

Get an idea of the SARIF file structure by showing only first / last entries in arrays.

  sarif-digest  data/torvalds_linux__2021-10-21_10_07_00__export.sarif |less

sarif-labeled

Display the SARIF file with explicit paths inserted before json objects and selected array entries. Handy when reverse-engineering the format by searching for results.

  sarif-labeled  data/torvalds_linux__2021-10-21_10_07_00__export.sarif |less

For example, the

  "uri": "drivers/gpu/drm/i915/gt/uc/intel_guc.c",

is nested; the labeled display shows where:

  "sarif_struct['runs'][1]['results'][4]['locations'][0]['physicalLocation']['artifactLocation']": "----path----",
  "artifactLocation": {
  "uri": "drivers/gpu/drm/i915/gt/uc/intel_guc.c",

sarif-list-files

Display the list of files referenced by a SARIF file. This is the tools used to get file names that ultimately went into data/linux-small/ and data/wxWidgets-small/.

  sarif-list-files data/wxWidgets_wxWidgets__2021-11-21_16_06_30__export.sarif

Sample Data

The query results in data/ are taken from lgtm.com, which ran the

ql/$LANG/ql/src/codeql-suites/$LANG-lgtm.qls

queries.

The linux kernel has both single-location results ("kind": "problem") and path results ("kind": "path-problem"). It also has results for multiple source languages.

The subset of files referenced by the sarif results is in data/linux-small/ and is taken from

  "versionControlProvenance": [
      {
          "repositoryUri": "https://github.com/torvalds/linux.git",
          "revisionId": "d9abdee5fd5abffd0e763e52fbfa3116de167822"
      }
  ]

The wxWidgets library has both single-location results ("kind": "problem") and path results ("kind": "path-problem").

The subset of files referenced by the sarif results is in data/wxWidgets-small/ and is taken from

  "repositoryUri": "https://github.com/wxWidgets/wxWidgets.git",
  "revisionId": "7a03d5fe9bca2d2a2cd81fc0620bcbd2cbc4c7b0"