fix(ci): prevent host pressure gate self blocking [skip ci]

scripts/ops/host-runaway-process-exporter.py

@@ -85,6 +85,7 @@ GITEA_ACTION_PROCESS_RE = re.compile(
     r"(/\.cache/act/|/home/wooo/\.cache/act/|\bdocker build\b|\bdocker-buildx\b|"
     r"\bbuildx build\b|\bpnpm turbo build\b|\bturbo build\b|\bnext build\b)"
 )
+HOST_PRESSURE_GATE_RE = re.compile(r"wait-host-web-build-pressure\.sh|awoooi-wait-host-web-build-pressure\.sh")
 
 
 def escape_label(value: str) -> str:
@@ -235,7 +236,14 @@ def active_gitea_action_containers(docker_file: Path | None = None) -> int:
 
 def active_gitea_action_process_load(rows: list[ProcessRow]) -> ActiveCiLoad:
     grouped: dict[int, list[ProcessRow]] = {}
+    gate_pgids = {
+        row.pgid
+        for row in rows
+        if HOST_PRESSURE_GATE_RE.search(f"{row.comm} {row.args}")
+    }
     for row in rows:
+        if row.pgid in gate_pgids:
+            continue
         haystack = f"{row.comm} {row.args}"
         if not GITEA_ACTION_PROCESS_RE.search(haystack):
             continue

scripts/ops/tests/test_host_runaway_process_exporter.py

@@ -145,6 +145,25 @@ def test_counts_buildkit_runner_process_load() -> None:
     assert load.oldest_age_seconds == 240
 
 
+def test_ignores_the_host_pressure_gate_process_group() -> None:
+    exporter = load_exporter()
+    rows = exporter.parse_ps_rows(
+        """
+        100 10 100 100 240 0.0 S bash bash --noprofile --norc -e -o pipefail /home/wooo/.cache/act/14cc/act/workflow/2.sh
+        101 100 100 100 239 0.0 S bash bash scripts/ci/wait-host-web-build-pressure.sh
+        102 101 100 100 238 0.0 S sleep sleep 10
+        200 150 200 200 210 12.5 S turbo turbo build --filter=@awoooi/web --concurrency=1
+        """
+    )
+
+    load = exporter.active_gitea_action_process_load(rows)
+
+    assert load.group_count == 1
+    assert load.process_count == 1
+    assert load.cpu_percent == 12.5
+    assert load.oldest_age_seconds == 210
+
+
 def test_remediation_defaults_to_dry_run(tmp_path: Path) -> None:
     ps_file = tmp_path / "ps.txt"
     ps_file.write_text(