ci: leverage incremental build in hatch tests

[gnufede]

CI: Enable incremental build (build cache) in hatch tests

Checklist

• [ ] PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• [ ] Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions[bot]]

CODEOWNERS have been resolved as:

.gitlab/tests.yml                                                       @DataDog/python-guild @DataDog/apm-core-python

[github-actions[bot]]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 278 ± 3 ms.

The average import time from base is: 279 ± 3 ms.

The import time difference between this PR and base is: -1.1 ± 0.1 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.898 ms (0.68%)

ddtrace.bootstrap.sitecustomize 1.229 ms (0.44%)

ddtrace.bootstrap.preload 1.229 ms (0.44%)

ddtrace.internal.remoteconfig.client 0.626 ms (0.23%)

ddtrace 0.669 ms (0.24%)

ddtrace.internal._unpatched 0.026 ms (0.01%)

json 0.026 ms (0.01%)

json.decoder 0.026 ms (0.01%)

re 0.026 ms (0.01%)

enum 0.026 ms (0.01%)

types 0.026 ms (0.01%)

[pr-commenter[bot]]

Benchmarks

Benchmark execution time: 2025-06-19 12:32:01

Comparing candidate commit e6a4b29fb5c223287c50a059bca86d5eede7ac46 in PR branch gnufede/enable-incremental-build-hatch with baseline commit 04cdf7f5627e4fafec8113de8ecafb6da538ddba in branch main.

Found 0 performance improvements and 1 performance regressions! Performance is the same for 416 metrics, 3 unstable metrics.

scenario:iastaspectssplit-splitlines_aspect

• 🟥 execution_time [+105.562ns; +138.602ns] or [+7.198%; +9.451%]

[github-actions[bot]]

This pull request has been automatically closed after a period of inactivity. After this much time, it will likely be easier to open a new pull request with the same changes than to update this one from the base branch. Please comment or reopen if you think this pull request was closed in error.