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source: add helper to detect if curl parallel download is available

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Modern curl (7.68+) has a --parallel option that will download
multiple sources in parallel. This commit adds detection for this
feature as it is only available after RHEL 8.

In addition we need some more feature to properly support --parallel,
i.e. `--write-out` with json and exitcode options. This bumps the
requirements to 7.75+ which is still fine, centos9/RHEL9 have
7.76.
This commit is contained in:
Michael Vogt 2024-04-30 11:16:08 +02:00 • committed by Simon de Vlieger
parent d20713d7af
commit 974c8adff9
2 changed files with 50 additions and 0 deletions
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27
sources/test/test_curl_source.py
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@ -5,6 +5,7 @@ import platform
import re
import shutil
import textwrap
from unittest.mock import patch
import pytest
@ -257,3 +258,29 @@ def test_curl_gen_download_config(tmp_path, sources_module):
no-insecure
""")
# fc39
NEW_CURL_OUTPUT = """\
curl 8.2.1 (x86_64-redhat-linux-gnu) libcurl/8.2.1 OpenSSL/3.1.1 zlib/1.2.13 libidn2/2.3.7 nghttp2/1.55.1
Release-Date: 2023-07-26
Protocols: file ftp ftps http https
Features: alt-svc AsynchDNS GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz SPNEGO SSL threadsafe UnixSockets
"""
# centos-stream8
OLD_CURL_OUTPUT = """\
curl 7.61.1 (x86_64-redhat-linux-gnu) libcurl/7.61.1 OpenSSL/1.1.1k zlib/1.2.11 nghttp2/1.33.0
Release-Date: 2018-09-05
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp
Features: AsynchDNS IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP HTTP2 UnixSockets HTTPS-proxy
"""
@patch("subprocess.check_output")
def test_curl_has_parallel_download(mocked_check_output, sources_module):
mocked_check_output.return_value = NEW_CURL_OUTPUT
assert sources_module.curl_has_parallel_downloads()
mocked_check_output.return_value = OLD_CURL_OUTPUT
assert not sources_module.curl_has_parallel_downloads()