[test visibility] Read pull_request and pull_request_target event info from GHA

[juan-fernandez]

What does this PR do?

Detect if we're in a pull_request or pull_request_target event by checking GITHUB_BASE_REF, and if we are, attempt to read the event.json payload made available by GitHub in GITHUB_EVENT_PATH.

Motivation

GitHub does not run workflows in the head of the branch about to be merged whenever the workflow is triggered through pull_request or pull_request_target events. It runs them in a merge commit. This is the one that we add to git.commit.sha. This is sometimes confusing because this commit does not exist in the history of the branch. What we did:

• Notice when this happens
• When it does, add a new set of tags:
  • git.commit.head_sha, which is the head SHA of the feature branch (branch to be merged).
  • git.pull_request.base_branch_sha, which is the head SHA of the base branch (branch you're merging into)
  • git.pull_request.base_branch, which is the name of the base branch

Plugin Checklist

• Unit tests.

[github-actions]

Overall package size

Self size: 7.21 MB
Deduped: 62.62 MB
No deduping: 62.9 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | @datadog/native-appsec | 8.1.1 | 18.67 MB | 18.68 MB | | @datadog/native-iast-taint-tracking | 3.1.0 | 12.27 MB | 12.28 MB | | @datadog/pprof | 5.3.0 | 9.85 MB | 10.22 MB | | protobufjs | 7.2.5 | 2.77 MB | 5.16 MB | | @datadog/native-iast-rewriter | 2.4.1 | 2.14 MB | 2.23 MB | | @opentelemetry/core | 1.14.0 | 872.87 kB | 1.47 MB | | @datadog/native-metrics | 2.0.0 | 898.77 kB | 1.3 MB | | @opentelemetry/api | 1.8.0 | 1.21 MB | 1.21 MB | | jsonpath-plus | 9.0.0 | 580.4 kB | 1.03 MB | | import-in-the-middle | 1.11.2 | 112.74 kB | 826.22 kB | | msgpack-lite | 0.1.26 | 201.16 kB | 281.59 kB | | opentracing | 0.14.7 | 194.81 kB | 194.81 kB | | pprof-format | 2.1.0 | 111.69 kB | 111.69 kB | | @datadog/sketches-js | 2.1.0 | 109.9 kB | 109.9 kB | | semver | 7.6.3 | 95.82 kB | 95.82 kB | | lodash.sortby | 4.7.0 | 75.76 kB | 75.76 kB | | lru-cache | 7.14.0 | 74.95 kB | 74.95 kB | | ignore | 5.3.1 | 51.46 kB | 51.46 kB | | int64-buffer | 0.1.10 | 49.18 kB | 49.18 kB | | shell-quote | 1.8.1 | 44.96 kB | 44.96 kB | | istanbul-lib-coverage | 3.2.0 | 29.34 kB | 29.34 kB | | rfdc | 1.3.1 | 25.21 kB | 25.21 kB | | tlhunter-sorted-set | 0.1.0 | 24.94 kB | 24.94 kB | | limiter | 1.1.5 | 23.17 kB | 23.17 kB | | dc-polyfill | 0.1.4 | 23.1 kB | 23.1 kB | | retry | 0.13.1 | 18.85 kB | 18.85 kB | | jest-docblock | 29.7.0 | 8.99 kB | 12.76 kB | | crypto-randomuuid | 1.0.0 | 11.18 kB | 11.18 kB | | koalas | 1.0.2 | 6.47 kB | 6.47 kB | | path-to-regexp | 0.1.10 | 6.38 kB | 6.38 kB | | module-details-from-path | 1.0.3 | 4.47 kB | 4.47 kB |

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-10-02 09:58:06

Comparing candidate commit cd30a5d in PR branch juan-fernandez/read-extra-env-info-from-gha with baseline commit fcd3ab8 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 260 metrics, 6 unstable metrics.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.80%. Comparing base (bb0bbcc) to head (cd30a5d).
Report is 15 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4745       +/-   ##
===========================================
- Coverage   91.42%   57.80%   -33.62%     
===========================================
  Files         112      157       +45     
  Lines        3475     6058     +2583     
  Branches       33       33               
===========================================
+ Hits         3177     3502      +325     
- Misses        298     2556     +2258     

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