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Revert "Work around intermittent Windows build failure (missing pyconfig.h, etc.)"#48207

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chouetz merged 1 commit intomainfrom
revert-48188-regis.desgroppes/fix-windows-pyconfig-race
Mar 23, 2026
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Revert "Work around intermittent Windows build failure (missing pyconfig.h, etc.)"#48207
chouetz merged 1 commit intomainfrom
revert-48188-regis.desgroppes/fix-windows-pyconfig-race

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Automatic revert of commit f902668.
This PR is created to anticipate the resolution of bazel:test:windows-amd64 job failure in main branch in case of erroneous code change.
If this revert is incorrect, do not hesitate to close the PR.

@datadog-datadog-prod-us1-2 datadog-datadog-prod-us1-2 bot requested a review from a team as a code owner March 23, 2026 12:04
@datadog-official datadog-official bot added the bot label Mar 23, 2026
@dd-octo-sts dd-octo-sts bot added internal Identify a non-fork PR team/agent-build labels Mar 23, 2026
@github-actions github-actions bot added the short review PR is simple enough to be reviewed quickly label Mar 23, 2026
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@@ -41,12 +41,6 @@ common:macos --remote_local_fallback_strategy=sandboxed

# Windows config -------------------------------------------------------------------------------------------------------
common:windows --strategy=standalone # Valid values are: [dynamic_worker, standalone, dynamic, remote, worker, local]
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P1 Badge Restore Windows runfiles flag to avoid dual python_win builds

Removing common:windows --enable_runfiles reintroduces the Windows race that the reverted commit was masking: this repo still pins rules_python 1.9.0 (see MODULE.bazel), and deps/cpython/build_python.bat still writes intermediates into shared PCbuild paths under the source tree (PCbuild/amd64, PCbuild/obj, msbuild.rsp) instead of per-action output dirs. In that state, Bazel can schedule two python_win builds in different configs on Windows, which intermittently fails with missing/locked build artifacts (e.g., pyconfig.h), so this revert can make CI/builds flaky again until the hermetic build script fix lands.

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No other short-term option, alas.

@rdesgroppes rdesgroppes added changelog/no-changelog No changelog entry needed qa/no-code-change No code change in Agent code requiring validation labels Mar 23, 2026
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Files inventory check summary

File checks results against ancestor c1d67a90:

Results for datadog-agent_7.79.0~devel.git.55.48eaaf3.pipeline.103966546-1_amd64.deb:

No change detected

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Static quality checks

✅ Please find below the results from static quality gates
Comparison made with ancestor f902668
📊 Static Quality Gates Dashboard
🔗 SQG Job

30 successful checks with minimal change (< 2 KiB)
Quality gate Current Size
agent_deb_amd64 751.636 MiB
agent_deb_amd64_fips 708.599 MiB
agent_heroku_amd64 313.141 MiB
agent_rpm_amd64 751.619 MiB
agent_rpm_amd64_fips 708.583 MiB
agent_rpm_arm64 730.015 MiB
agent_rpm_arm64_fips 689.992 MiB
agent_suse_amd64 751.619 MiB
agent_suse_amd64_fips 708.583 MiB
agent_suse_arm64 730.015 MiB
agent_suse_arm64_fips 689.992 MiB
docker_agent_amd64 811.942 MiB
docker_agent_arm64 815.101 MiB
docker_agent_jmx_amd64 1002.858 MiB
docker_agent_jmx_arm64 994.795 MiB
docker_cluster_agent_amd64 205.320 MiB
docker_cluster_agent_arm64 219.677 MiB
docker_cws_instrumentation_amd64 7.142 MiB
docker_cws_instrumentation_arm64 6.689 MiB
docker_dogstatsd_amd64 39.230 MiB
docker_dogstatsd_arm64 37.445 MiB
dogstatsd_deb_amd64 29.874 MiB
dogstatsd_deb_arm64 28.026 MiB
dogstatsd_rpm_amd64 29.874 MiB
dogstatsd_suse_amd64 29.874 MiB
iot_agent_deb_amd64 43.254 MiB
iot_agent_deb_arm64 40.305 MiB
iot_agent_deb_armhf 41.052 MiB
iot_agent_rpm_amd64 43.255 MiB
iot_agent_suse_amd64 43.255 MiB
On-wire sizes (compressed)
Quality gate Change Size (prev → curr → max)
agent_deb_amd64 neutral 174.782 MiB → 178.360
agent_deb_amd64_fips +56.59 KiB (0.03% increase) 165.335 → 165.390 → 172.790
agent_heroku_amd64 neutral 74.978 MiB → 79.970
agent_rpm_amd64 -21.55 KiB (0.01% reduction) 177.644 → 177.623 → 181.830
agent_rpm_amd64_fips +4.92 KiB (0.00% increase) 167.609 → 167.614 → 173.370
agent_rpm_arm64 +6.79 KiB (0.00% increase) 159.571 → 159.577 → 163.060
agent_rpm_arm64_fips +2.71 KiB (0.00% increase) 151.449 → 151.452 → 156.170
agent_suse_amd64 -21.55 KiB (0.01% reduction) 177.644 → 177.623 → 181.830
agent_suse_amd64_fips +4.92 KiB (0.00% increase) 167.609 → 167.614 → 173.370
agent_suse_arm64 +6.79 KiB (0.00% increase) 159.571 → 159.577 → 163.060
agent_suse_arm64_fips +2.71 KiB (0.00% increase) 151.449 → 151.452 → 156.170
docker_agent_amd64 neutral 268.129 MiB → 272.480
docker_agent_arm64 +2.53 KiB (0.00% increase) 255.339 → 255.342 → 261.060
docker_agent_jmx_amd64 neutral 336.776 MiB → 341.100
docker_agent_jmx_arm64 +5.46 KiB (0.00% increase) 319.978 → 319.983 → 325.620
docker_cluster_agent_amd64 neutral 71.929 MiB → 72.920
docker_cluster_agent_arm64 neutral 67.506 MiB → 68.220
docker_cws_instrumentation_amd64 neutral 2.999 MiB → 3.330
docker_cws_instrumentation_arm64 neutral 2.729 MiB → 3.090
docker_dogstatsd_amd64 neutral 15.169 MiB → 15.820
docker_dogstatsd_arm64 neutral 14.488 MiB → 14.830
dogstatsd_deb_amd64 neutral 7.890 MiB → 8.790
dogstatsd_deb_arm64 neutral 6.776 MiB → 7.710
dogstatsd_rpm_amd64 -2.09 KiB (0.03% reduction) 7.902 → 7.900 → 8.800
dogstatsd_suse_amd64 -2.09 KiB (0.03% reduction) 7.902 → 7.900 → 8.800
iot_agent_deb_amd64 neutral 11.397 MiB → 12.040
iot_agent_deb_arm64 +2.71 KiB (0.03% increase) 9.698 → 9.701 → 10.450
iot_agent_deb_armhf neutral 9.934 MiB → 10.620
iot_agent_rpm_amd64 neutral 11.414 MiB → 12.060
iot_agent_suse_amd64 neutral 11.414 MiB → 12.060

rdesgroppes added a commit that referenced this pull request Mar 23, 2026
### What does this PR do?
Add `.bazel*` to the `windows_path_2` change filter in
`.gitlab-ci.yml`.

### Motivation
`.bazelrc` and `.bazelversion` live at the repo root, not under
`bazel/**/*`.
Changes to those files can affect Windows builds and tests (#48207)
without triggering Windows CI jobs, so
regressions go undetected until the change lands on `main`.

Follows #48087 - more to come?
@cit-pr-commenter-54b7da
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cit-pr-commenter-54b7da bot commented Mar 23, 2026

Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Run ID: e2b3ff8c-0cb5-4bd5-9b27-deae0f8621fa

Baseline: d7a7373
Comparison: 6d7bc6d
Diff

Optimization Goals: ✅ No significant changes detected

Experiments ignored for regressions

Regressions in experiments with settings containing erratic: true are ignored.

perf experiment goal Δ mean % Δ mean % CI trials links
docker_containers_cpu % cpu utilization +0.22 [-2.85, +3.29] 1 Logs

Fine details of change detection per experiment

perf experiment goal Δ mean % Δ mean % CI trials links
docker_containers_cpu % cpu utilization +0.22 [-2.85, +3.29] 1 Logs
docker_containers_memory memory utilization +0.16 [+0.09, +0.23] 1 Logs
quality_gate_metrics_logs memory utilization +0.11 [-0.13, +0.34] 1 Logs bounds checks dashboard
uds_dogstatsd_20mb_12k_contexts_20_senders memory utilization +0.08 [+0.02, +0.14] 1 Logs
otlp_ingest_metrics memory utilization +0.07 [-0.09, +0.23] 1 Logs
quality_gate_idle memory utilization +0.06 [+0.01, +0.11] 1 Logs bounds checks dashboard
quality_gate_idle_all_features memory utilization +0.03 [-0.01, +0.07] 1 Logs bounds checks dashboard
uds_dogstatsd_to_api_v3 ingress throughput +0.01 [-0.19, +0.20] 1 Logs
uds_dogstatsd_to_api ingress throughput +0.00 [-0.19, +0.20] 1 Logs
file_to_blackhole_0ms_latency egress throughput +0.00 [-0.45, +0.45] 1 Logs
tcp_dd_logs_filter_exclude ingress throughput -0.00 [-0.11, +0.11] 1 Logs
ddot_metrics_sum_delta memory utilization -0.00 [-0.17, +0.17] 1 Logs
file_to_blackhole_1000ms_latency egress throughput -0.01 [-0.44, +0.42] 1 Logs
file_to_blackhole_500ms_latency egress throughput -0.02 [-0.40, +0.36] 1 Logs
ddot_metrics_sum_cumulativetodelta_exporter memory utilization -0.04 [-0.26, +0.19] 1 Logs
file_to_blackhole_100ms_latency egress throughput -0.06 [-0.14, +0.01] 1 Logs
otlp_ingest_logs memory utilization -0.11 [-0.20, -0.01] 1 Logs
ddot_logs memory utilization -0.15 [-0.21, -0.09] 1 Logs
ddot_metrics memory utilization -0.23 [-0.41, -0.06] 1 Logs
file_tree memory utilization -0.25 [-0.31, -0.19] 1 Logs
ddot_metrics_sum_cumulative memory utilization -0.42 [-0.56, -0.28] 1 Logs
tcp_syslog_to_blackhole ingress throughput -1.59 [-1.73, -1.45] 1 Logs
quality_gate_logs % cpu utilization -1.92 [-3.51, -0.33] 1 Logs bounds checks dashboard

Bounds Checks: ✅ Passed

perf experiment bounds_check_name replicates_passed observed_value links
docker_containers_cpu simple_check_run 10/10 553 ≥ 26
docker_containers_memory memory_usage 10/10 274.53MiB ≤ 370MiB
docker_containers_memory simple_check_run 10/10 698 ≥ 26
file_to_blackhole_0ms_latency memory_usage 10/10 0.19GiB ≤ 1.20GiB
file_to_blackhole_0ms_latency missed_bytes 10/10 0B = 0B
file_to_blackhole_1000ms_latency memory_usage 10/10 0.24GiB ≤ 1.20GiB
file_to_blackhole_1000ms_latency missed_bytes 10/10 0B = 0B
file_to_blackhole_100ms_latency memory_usage 10/10 0.20GiB ≤ 1.20GiB
file_to_blackhole_100ms_latency missed_bytes 10/10 0B = 0B
file_to_blackhole_500ms_latency memory_usage 10/10 0.21GiB ≤ 1.20GiB
file_to_blackhole_500ms_latency missed_bytes 10/10 0B = 0B
quality_gate_idle intake_connections 10/10 3 = 3 bounds checks dashboard
quality_gate_idle memory_usage 10/10 174.94MiB ≤ 175MiB bounds checks dashboard
quality_gate_idle_all_features intake_connections 10/10 2 ≤ 3 bounds checks dashboard
quality_gate_idle_all_features memory_usage 10/10 494.07MiB ≤ 550MiB bounds checks dashboard
quality_gate_logs intake_connections 10/10 3 ≤ 6 bounds checks dashboard
quality_gate_logs memory_usage 10/10 207.96MiB ≤ 220MiB bounds checks dashboard
quality_gate_logs missed_bytes 10/10 0B = 0B bounds checks dashboard
quality_gate_metrics_logs cpu_usage 10/10 364.65 ≤ 2000 bounds checks dashboard
quality_gate_metrics_logs intake_connections 10/10 3 ≤ 6 bounds checks dashboard
quality_gate_metrics_logs memory_usage 10/10 404.66MiB ≤ 475MiB bounds checks dashboard
quality_gate_metrics_logs missed_bytes 10/10 0B = 0B bounds checks dashboard

Explanation

Confidence level: 90.00%
Effect size tolerance: |Δ mean %| ≥ 5.00%

Performance changes are noted in the perf column of each table:

  • ✅ = significantly better comparison variant performance
  • ❌ = significantly worse comparison variant performance
  • ➖ = no significant change in performance

A regression test is an A/B test of target performance in a repeatable rig, where "performance" is measured as "comparison variant minus baseline variant" for an optimization goal (e.g., ingress throughput). Due to intrinsic variability in measuring that goal, we can only estimate its mean value for each experiment; we report uncertainty in that value as a 90.00% confidence interval denoted "Δ mean % CI".

For each experiment, we decide whether a change in performance is a "regression" -- a change worth investigating further -- if all of the following criteria are true:

  1. Its estimated |Δ mean %| ≥ 5.00%, indicating the change is big enough to merit a closer look.

  2. Its 90.00% confidence interval "Δ mean % CI" does not contain zero, indicating that if our statistical model is accurate, there is at least a 90.00% chance there is a difference in performance between baseline and comparison variants.

  3. Its configuration does not mark it "erratic".

CI Pass/Fail Decision

Passed. All Quality Gates passed.

  • quality_gate_idle, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_idle, bounds check intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_idle_all_features, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_idle_all_features, bounds check intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, bounds check missed_bytes: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, bounds check intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check cpu_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check missed_bytes: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check intake_connections: 10/10 replicas passed. Gate passed.

@github-actions github-actions bot added medium review PR review might take time and removed short review PR is simple enough to be reviewed quickly labels Mar 23, 2026
@chouetz chouetz merged commit 6d7bc6d into main Mar 23, 2026
274 of 280 checks passed
@chouetz chouetz deleted the revert-48188-regis.desgroppes/fix-windows-pyconfig-race branch March 23, 2026 12:57
@github-actions github-actions bot added this to the 7.79.0 milestone Mar 23, 2026
rdesgroppes added a commit that referenced this pull request Mar 23, 2026
### What does this PR do?
Add `.bazel*` to the `windows_path_2` change filter in
`.gitlab-ci.yml`.

### Motivation
`.bazelrc` and `.bazelversion` live at the repo root, not under
`bazel/**/*`.
Changes to those files can affect Windows builds and tests (#48207)
without triggering Windows CI jobs, so
regressions go undetected until the change lands on `main`.

Follows #48087 - more to come?
gh-worker-dd-mergequeue-cf854d bot pushed a commit that referenced this pull request Mar 23, 2026
### What does this PR do?
Add `.bazel*` to the `windows_path_2` change filter in `.gitlab-ci.yml`.

### Motivation
`.bazelrc` and `.bazelversion` live at the repo root, not under `bazel/**/*`.
Changes to those files can affect Windows builds and tests (#48207) without triggering Windows CI jobs, so
regressions go undetected until the change lands on `main`.

Follows #48087 - more to come?

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
gh-worker-dd-mergequeue-cf854d bot pushed a commit that referenced this pull request Mar 24, 2026
### Motivation
This job is critical to ensure _any_ change, whether strictly `bazel`-related or in the source code being built/tested, doesn't break Windows builds.

It's the second time a breaking change is not gated properly (this time leading to #48207), so we're kindly asking to lift the Windows pipeline exclusion and always run this job in CI.

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
aya-shimizu24 pushed a commit that referenced this pull request Mar 24, 2026
…fig.h, etc.)" (#48207)

Automatic revert of commit f902668.
This PR is created to anticipate the resolution of
`bazel:test:windows-amd64` job failure in `main` branch in case of
erroneous code change.
If this revert is incorrect, do not hesitate to close the PR.

Co-authored-by: datadog-datadog-prod-us1-2[bot] <261164178+datadog-datadog-prod-us1-2[bot]@users.noreply.github.com>
aya-shimizu24 pushed a commit that referenced this pull request Mar 24, 2026
### What does this PR do?
Add `.bazel*` to the `windows_path_2` change filter in `.gitlab-ci.yml`.

### Motivation
`.bazelrc` and `.bazelversion` live at the repo root, not under `bazel/**/*`.
Changes to those files can affect Windows builds and tests (#48207) without triggering Windows CI jobs, so
regressions go undetected until the change lands on `main`.

Follows #48087 - more to come?

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
aya-shimizu24 pushed a commit that referenced this pull request Mar 24, 2026
### Motivation
This job is critical to ensure _any_ change, whether strictly `bazel`-related or in the source code being built/tested, doesn't break Windows builds.

It's the second time a breaking change is not gated properly (this time leading to #48207), so we're kindly asking to lift the Windows pipeline exclusion and always run this job in CI.

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
rdesgroppes added a commit that referenced this pull request Mar 24, 2026
### What does this PR do?
- add `common:windows --enable_runfiles` to `.bazelrc`
- widen `bazel:test:windows-amd64` from
  `//bazel/tests/... //rtloader/...` to `//...` with exclusions
  for Linux-, eBPF-, and gopatch-only targets

### Motivation
rules_python 1.9.0 (#48082) transitions every `py_binary` and
`py_test` on Windows from `enable_runfiles=auto` to
`enable_runfiles=true`. With Bazel's default (`enable_runfiles=false`
on Windows), this creates a second Bazel configuration, causing
`python_win` to be built twice concurrently. `build_python.bat`
writes MSBuild intermediates to the shared execroot source tree
rather than the action's output directory, so both builds race on
those files, causing intermittent `pyconfig.h` failures.

This is a redo of #48188, which was preemptively reverted (#48207).
Pre-setting `--enable_runfiles` makes the transition a no-op, so
Bazel sees a single configuration and builds `python_win` once.

Two prerequisites are now in place: #48281 provides `PYTHON_FOR_BUILD`
to MSBuild, preventing `find_python.bat` from falling back to NuGet
and other external sources under `--incompatible_strict_action_env`;
#48087 and #48209 trigger Windows CI on `MODULE.bazel*` and `.bazel*`
changes respectively, so the widened test surface below will catch
regressions before they reach `main`.

### Describe how you validated your changes
Local VM and, of course, CI.

### Additional Notes
`//pkg/template/...` is excluded on Windows: gopatch v0.4.0 errors
on `@@\r` in hunk markers when patch files have CRLF line endings,
an unreported upstream bug with no workaround in gopatch itself.
gh-worker-dd-mergequeue-cf854d bot pushed a commit that referenced this pull request Mar 24, 2026
Prior art:
1. #48082
2. #48087
3. #48188 (1st attempt)
4. #48207
5. #48281
6. #48209

### What does this PR do?
This is a redo of #48188 (preemptively reverted by #48207) and therefore merely consists in re-adding `common:windows --enable_runfiles` to `.bazelrc`.

... with lessons learned, thanks to earlier:
- #48209 covers the present change to `.bazelrc`,
- #48281 prevents `find_python.bat` from falling back to `NuGet` or other non hermetic sources.

.... and now a widened `bazel:test:windows-amd64`, evolving from just `//bazel/tests/... //rtloader/...` to `//...` **- except currently failing targets** (for the time being, of course).

### Motivation
Summary of #48188:
- `rules_python` 1.9.0 (#48082) transitions every `py_binary` and `py_test` on Windows from `enable_runfiles=auto` to `enable_runfiles=true`,
- with Bazel's default (`enable_runfiles=false` on Windows), this creates a second Bazel configuration, causing
`python_win` to be built twice concurrently,
- `build_python.bat` writes `MSBuild` intermediates to the shared execroot source tree rather than the action's output directory, so both builds race on those files, causing [intermittent failures](https://gitlab.ddbuild.io/DataDog/datadog-agent/-/jobs/1533753039) (`pyconfig.h` not found, etc.).

**Pre-setting `--enable_runfiles` makes the transition a no-op, so Bazel sees a single configuration and builds `python_win` once.**

### Describe how you validated your changes
Local VM and, of course, CI.

### Additional Notes
For instance, `//pkg/template/...` is excluded on Windows because `gopatch` errors on `@@\r` in hunk markers when patch files have CRLF line endings, which deserves a distinct PR (likely adjusting `.gitattributes`).


Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
…fig.h, etc.)" (#48207)

Automatic revert of commit f902668.
This PR is created to anticipate the resolution of
`bazel:test:windows-amd64` job failure in `main` branch in case of
erroneous code change.
If this revert is incorrect, do not hesitate to close the PR.

Co-authored-by: datadog-datadog-prod-us1-2[bot] <261164178+datadog-datadog-prod-us1-2[bot]@users.noreply.github.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
### What does this PR do?
Add `.bazel*` to the `windows_path_2` change filter in `.gitlab-ci.yml`.

### Motivation
`.bazelrc` and `.bazelversion` live at the repo root, not under `bazel/**/*`.
Changes to those files can affect Windows builds and tests (#48207) without triggering Windows CI jobs, so
regressions go undetected until the change lands on `main`.

Follows #48087 - more to come?

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
### Motivation
This job is critical to ensure _any_ change, whether strictly `bazel`-related or in the source code being built/tested, doesn't break Windows builds.

It's the second time a breaking change is not gated properly (this time leading to #48207), so we're kindly asking to lift the Windows pipeline exclusion and always run this job in CI.

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
Prior art:
1. #48082
2. #48087
3. #48188 (1st attempt)
4. #48207
5. #48281
6. #48209

### What does this PR do?
This is a redo of #48188 (preemptively reverted by #48207) and therefore merely consists in re-adding `common:windows --enable_runfiles` to `.bazelrc`.

... with lessons learned, thanks to earlier:
- #48209 covers the present change to `.bazelrc`,
- #48281 prevents `find_python.bat` from falling back to `NuGet` or other non hermetic sources.

.... and now a widened `bazel:test:windows-amd64`, evolving from just `//bazel/tests/... //rtloader/...` to `//...` **- except currently failing targets** (for the time being, of course).

### Motivation
Summary of #48188:
- `rules_python` 1.9.0 (#48082) transitions every `py_binary` and `py_test` on Windows from `enable_runfiles=auto` to `enable_runfiles=true`,
- with Bazel's default (`enable_runfiles=false` on Windows), this creates a second Bazel configuration, causing
`python_win` to be built twice concurrently,
- `build_python.bat` writes `MSBuild` intermediates to the shared execroot source tree rather than the action's output directory, so both builds race on those files, causing [intermittent failures](https://gitlab.ddbuild.io/DataDog/datadog-agent/-/jobs/1533753039) (`pyconfig.h` not found, etc.).

**Pre-setting `--enable_runfiles` makes the transition a no-op, so Bazel sees a single configuration and builds `python_win` once.**

### Describe how you validated your changes
Local VM and, of course, CI.

### Additional Notes
For instance, `//pkg/template/...` is excluded on Windows because `gopatch` errors on `@@\r` in hunk markers when patch files have CRLF line endings, which deserves a distinct PR (likely adjusting `.gitattributes`).


Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
…fig.h, etc.)" (#48207)

Automatic revert of commit f902668.
This PR is created to anticipate the resolution of
`bazel:test:windows-amd64` job failure in `main` branch in case of
erroneous code change.
If this revert is incorrect, do not hesitate to close the PR.

Co-authored-by: datadog-datadog-prod-us1-2[bot] <261164178+datadog-datadog-prod-us1-2[bot]@users.noreply.github.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
### What does this PR do?
Add `.bazel*` to the `windows_path_2` change filter in `.gitlab-ci.yml`.

### Motivation
`.bazelrc` and `.bazelversion` live at the repo root, not under `bazel/**/*`.
Changes to those files can affect Windows builds and tests (#48207) without triggering Windows CI jobs, so
regressions go undetected until the change lands on `main`.

Follows #48087 - more to come?

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
### Motivation
This job is critical to ensure _any_ change, whether strictly `bazel`-related or in the source code being built/tested, doesn't break Windows builds.

It's the second time a breaking change is not gated properly (this time leading to #48207), so we're kindly asking to lift the Windows pipeline exclusion and always run this job in CI.

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
Prior art:
1. #48082
2. #48087
3. #48188 (1st attempt)
4. #48207
5. #48281
6. #48209

### What does this PR do?
This is a redo of #48188 (preemptively reverted by #48207) and therefore merely consists in re-adding `common:windows --enable_runfiles` to `.bazelrc`.

... with lessons learned, thanks to earlier:
- #48209 covers the present change to `.bazelrc`,
- #48281 prevents `find_python.bat` from falling back to `NuGet` or other non hermetic sources.

.... and now a widened `bazel:test:windows-amd64`, evolving from just `//bazel/tests/... //rtloader/...` to `//...` **- except currently failing targets** (for the time being, of course).

### Motivation
Summary of #48188:
- `rules_python` 1.9.0 (#48082) transitions every `py_binary` and `py_test` on Windows from `enable_runfiles=auto` to `enable_runfiles=true`,
- with Bazel's default (`enable_runfiles=false` on Windows), this creates a second Bazel configuration, causing
`python_win` to be built twice concurrently,
- `build_python.bat` writes `MSBuild` intermediates to the shared execroot source tree rather than the action's output directory, so both builds race on those files, causing [intermittent failures](https://gitlab.ddbuild.io/DataDog/datadog-agent/-/jobs/1533753039) (`pyconfig.h` not found, etc.).

**Pre-setting `--enable_runfiles` makes the transition a no-op, so Bazel sees a single configuration and builds `python_win` once.**

### Describe how you validated your changes
Local VM and, of course, CI.

### Additional Notes
For instance, `//pkg/template/...` is excluded on Windows because `gopatch` errors on `@@\r` in hunk markers when patch files have CRLF line endings, which deserves a distinct PR (likely adjusting `.gitattributes`).


Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
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