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A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
cclientcurlftpgopherhacktoberfesthttphttpsimapsldaplibcurllibrarymqttpop3scpsftptransfer-datatransferring-datauser-agentwebsocket
a477789c43
This patch fixes flakiness caused by MSBuild scanning the runtests.pl output for regex patterns. When finding a hit, it returns an error code to cmake, making the build test CI step fail. This happens rarely after an earlier mitigation tweaking outputs, but, as expected, it did not resolve it completely. MSBuild doesn't have an option to disable this behavior. To fix, this patch migrates the two affected jobs from MSBuild to Ninja. To align with existing multi-config logic, it uses the `Ninja Multi-Config` generator, which hasn't been tested before in CI. Switching to Ninja was not trivial. Visual Studio to this day relies on an MS-DOS batch file stored at an unstable location (containing spaces and parenthesis), to initialize its environment. Without this env, `cl.exe` is unable to find its own components. GHA does not initialize it (even if it did, it could only default to a single specific target). CMake helps with this when using a Visual Studio generator, but doesn't when using Ninja. (On local machines the VS installer adds a couple of Start menu items for launching pre-configured command prompts.) Ref: https://learn.microsoft.com/cpp/build/building-on-the-command-line The MS-DOS batches don't integrate well with CI envs and even less so with shell scripts. To avoid it, this patch uses manual configuration. Also without using environment variables, to make it easy to use and easy to debug and trace in logs. Configuring Visual Studio is relatively stable across releases and hasn't changed a whole lot in the last 2 decades, but still may need more maintenance compared to llvm, or pretty much any other toolchain out there. On the upside, it allows to manually select compiler version, SDK version, cross-combinations, and allows choosing clang-cl. The configuration aims to find the latest of these automatically. Some traps that had to be avoided: - need to switch to MS-DOS short names to avoid spaces in the VS component paths. - need to switch to forward slashes to avoid confusing downstream tools with backslashes. - need to pass either MSYS2 for Windows-style path depending on setting. - need to use a trick to retrieve the oddly named `ProgramFiles(x86)` Windows env from shell script. - need to match VS version (2022) and edition (Enterprise), found on GHA runners. - need to pass the CMake generator via env so that the space in the name doesn't trip the shell when passed via a variable. - trash and unexpected dirs when detecting SDK/toolchain versions. - need to pass `-external:W0` to the C compiler to avoid MSVC warning: `D9007: '/external:I' requires '/external:W'; option ignored` - using cmake options only, to make it run without relying on envs and work out-of-the-box when running subsequent cmake sessions. - some others discovered while making work clang-cl locally in cross-builds. Ninja also improves performance in most cases (though wasn't a goal here). After this patch configure is significantly faster (1.5-2x), builds are a tiny bit faster, except examples which was twice as fast with MSBuild. Disk space use is 10% lower. MSBuild builds remain tested in AppVeyor CI and the UWP job. Before: https://github.com/curl/curl/actions/runs/17025737223/job/48260856051 After: https://github.com/curl/curl/actions/runs/17027981486/job/48266133301 Fixes: ``` === Start of file stderr1635 % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 100 4 100 4 0 0 449 0 --:--:-- --:--:-- --:--:-- 500 curl : (22) The requested URL returned error : 429 [D:\a\curl\curl\bld\tests\test-ci.vcxproj] CUSTOMBUILD : warning : Problem : HTTP error. Will retry in 1 second. 1 retry left. [D:\a\curl\curl\bld\tests\test-ci.vcxproj] [...] C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(254,5): error MSB8066: Custom build for 'D:\a\curl\curl\bld\CMakeFiles\621f80ddbb0fa48179f056ca77842ff0\test-ci.rule;D:\a\curl\curl\tests\CMakeLists.txt' exited with code -1. [D:\a\curl\curl\bld\tests\test-ci.vcxproj] Error: Process completed with exit code 1. ``` Ref: https://github.com/curl/curl/actions/runs/16966304797/job/48091058271?pr=18287#step:13:3471 Bug: https://github.com/curl/curl/discussions/14854#discussioncomment-14104166 Ref: |
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| .circleci | ||
| .github | ||
| CMake | ||
| docs | ||
| include | ||
| lib | ||
| LICENSES | ||
| m4 | ||
| packages | ||
| plan9 | ||
| projects | ||
| scripts | ||
| src | ||
| tests | ||
| winbuild | ||
| .dir-locals.el | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| acinclude.m4 | ||
| appveyor.sh | ||
| appveyor.yml | ||
| buildconf | ||
| CHANGES.md | ||
| CMakeLists.txt | ||
| configure.ac | ||
| COPYING | ||
| curl-config.in | ||
| Dockerfile | ||
| GIT-INFO.md | ||
| libcurl.pc.in | ||
| Makefile.am | ||
| README | ||
| README.md | ||
| RELEASE-NOTES | ||
| renovate.json | ||
| REUSE.toml | ||
| SECURITY.md | ||
curl is a command-line tool for transferring data specified with URL syntax. Learn how to use curl by reading the manpage or everything curl.
Find out how to install curl by reading the INSTALL document.
libcurl is the library curl is using to do its job. It is readily available to be used by your software. Read the libcurl manpage to learn how.
Open Source
curl is Open Source and is distributed under an MIT-like license.
Contact
Contact us on a suitable mailing list or use GitHub issues/ pull requests/ discussions.
All contributors to the project are listed in the THANKS document.
Commercial support
For commercial support, maybe private and dedicated help with your problems or applications using (lib)curl visit the support page.
Website
Visit the curl website for the latest news and downloads.
Source code
Download the latest source from the Git server:
git clone https://github.com/curl/curl.git
Security problems
Report suspected security problems via our HackerOne page and not in public.
Notice
curl contains pieces of source code that is Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan. This notice is included here to comply with the distribution terms.
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