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jenkins-gerrit/artifacts_download: new script

Add a script for downloading artifacts from the build job in a gerrit
pipeline, so it can be used in the hwtest job job.

pipeline: <--- URL to the pipeline is passed to all jobs
  parallel:
    sequential:
      build  <--- artifacts are here
      hwtest <--- will call the new script with the pipeline URL
    lint
    binpkgs
    ...

Related: SYS#7963
Change-Id: Ia96951d62b464b2e0b80f8e555cb77e5b9e52f78
---
A scripts/jenkins-gerrit/artifacts_download.py
1 file changed, 68 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ci refs/changes/35/42635/1

diff --git a/scripts/jenkins-gerrit/artifacts_download.py b/scripts/jenkins-gerrit/artifacts_download.py
new file mode 100755
index 0000000..d576e06
--- /dev/null
+++ b/scripts/jenkins-gerrit/artifacts_download.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright 2026 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+import argparse
+import io
+import re
+import shutil
+import sys
+import urllib.request
+import zipfile
+import os
+
+jenkins_url = "https://jenkins.osmocom.org"
+re_start_build = re.compile("Starting building: gerrit-[a-zA-Z-_0-9]* #[0-9]*")
+matrix = "a1=default,a2=default,a3=default,a4=default,label=osmocom-gerrit"
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description="Download artifacts from the gerrit pipeline.")
+    parser.add_argument(
+        "pipeline_url",
+        help="$BUILD_URL of the pipeline job, e.g."
+        " https://jenkins.osmocom.org/jenkins/job/gerrit-osmo-ccid-firmware/177/",
+    )
+    return parser.parse_args()
+
+
+def get_job_url(pipeline_url):
+    url = f"{pipeline_url}/consoleText"
+    print(f"GET {url}")
+    with urllib.request.urlopen(url) as response:
+        for line in io.TextIOWrapper(response, encoding="utf-8"):
+            for match in re_start_build.findall(line):
+                job_name = match.split(" ")[2]
+                if not job_name.endswith("-build"):
+                    continue
+                job_id = int(match.split(" ")[3].replace("#", ""))
+                job_url = f"{jenkins_url}/jenkins/job/{job_name}/{matrix}/{job_id}"
+                return job_url
+
+    print("ERROR: failed to find job URL!")
+    sys.exit(1)
+
+
+def download_archive_zip(job_url):
+    url = f"{job_url}/artifact/*zip*/archive.zip"
+    print(f"GET {url}")
+    with urllib.request.urlopen(url) as response, open("archive.zip", "wb") as handle:
+        shutil.copyfileobj(response, handle)
+
+
+def extract_archive_zip():
+    path = os.path.join(os.getcwd(), "gerrit-artifacts")
+    os.makedirs(path)
+    print(f"UNZIP archive.zip to {path}")
+    with zipfile.ZipFile("archive.zip") as z:
+        z.extractall(path)
+
+
+def main():
+    args = parse_args()
+    job_url = get_job_url(args.pipeline_url)
+    download_archive_zip(job_url)
+    extract_archive_zip()
+
+
+if __name__ == "__main__":
+    main()

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