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The Git project is not exactly the easiest project to get started in: it's written in C and POSIX shell, with bits of Perl, Rust and other languages sprinkled into it. On top of that, the project has grown somewhat organically over time, making the codebase hard to navigate. These are problems that we're aware of, and there have been and still are efforts to clean up some of the technical debt that is natural to exist an a project that is more than 20 years old. Furthermore, we provide resources to newcomers that help them out like our coding guidelines, code of conduct or "MyFirstContribution.adoc". But there is a rather practical problem: finding your way around in our project's tree is not easy. Doing a directory listing in the top-level directory will present you with more than 550 files, which makes it extremely hard for a newcomer to figure out what files they are even supposed to look at. This makes the onboarding experience somewhat harder than it really needs to be. This isn't only a problem for newcomers though, as I myself struggle to find the files I am looking for because of the sheer number of files. Besides the problem of discoverability it also creates a problem of structure. It is not obvious at all which files are part of "libgit.a" and which files are only linked into our final executables. So while we have this split in our build systems, that split is not evident at all in our tree. Introduce a new "lib/" directory and move all of our sources for "libgit.a" into it to fix these issues. It makes the split we have evident and reduces the number of files in our top-level tree from 550 files to ~80 files. This is still a lot of files, but it's significantly easier to navigate already. Furthermore, we can further iterate after this step and think about introducing a better structure for remaining files, as well. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
#ifndef GIT_CURL_COMPAT_H
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#define GIT_CURL_COMPAT_H
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#include <curl/curl.h>
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/**
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* This header centralizes the declaration of our libcurl dependencies
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* to make it easy to discover the oldest versions we support, and to
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* inform decisions about removing support for older libcurl in the
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* future.
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*
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* The oldest supported version of curl is documented in the "INSTALL"
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* document.
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*
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* The source of truth for what versions have which symbols is
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* https://github.com/curl/curl/blob/master/docs/libcurl/symbols-in-versions;
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* the release dates are taken from curl.git (at
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* https://github.com/curl/curl/).
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*
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* For each X symbol we need from curl we define our own
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* GIT_CURL_HAVE_X. If multiple similar symbols with the same prefix
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* were defined in the same version we pick one and check for that name.
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*
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* We may also define a missing CURL_* symbol to its known value, if
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* doing so is sufficient to add support for it to older versions that
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* don't have it.
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*
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* Keep any symbols in date order of when their support was
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* introduced, oldest first, in the official version of cURL library.
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*/
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/**
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* Versions before curl 7.66.0 (September 2019) required manually setting the
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* transfer-encoding for a streaming POST; after that this is handled
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* automatically.
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*/
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#if LIBCURL_VERSION_NUM < 0x074200
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#define GIT_CURL_NEED_TRANSFER_ENCODING_HEADER
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#endif
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/**
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* CURLINFO_RETRY_AFTER was added in 7.66.0, released in September 2019.
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* It allows curl to automatically parse Retry-After headers.
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*/
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#if LIBCURL_VERSION_NUM >= 0x074200
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#define GIT_CURL_HAVE_CURLINFO_RETRY_AFTER 1
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#endif
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/**
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* CURLOPT_PROTOCOLS_STR and CURLOPT_REDIR_PROTOCOLS_STR were added in 7.85.0,
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* released in August 2022.
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*/
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#if LIBCURL_VERSION_NUM >= 0x075500
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#define GIT_CURL_HAVE_CURLOPT_PROTOCOLS_STR 1
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#endif
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/**
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* curl_global_trace() was added in 8.3.0, released September 2023.
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*/
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#if LIBCURL_VERSION_NUM >= 0x080300
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#define GIT_CURL_HAVE_GLOBAL_TRACE 1
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#endif
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/**
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* CURLOPT_TCP_KEEPCNT was added in 8.9.0, released in July, 2024.
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*/
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#if LIBCURL_VERSION_NUM >= 0x080900
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#define GIT_CURL_HAVE_CURLOPT_TCP_KEEPCNT
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#endif
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#endif
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